The weight of the atmosphere results in P_0 at the surface of the oil layer. Then the weight of the oil and the weight of the water combine to create the pressure at the bottom. Why does air pressure decrease with increasing altitude? (Select all that apply.) Less air above pushes down. Hot air rises. The weight of the air above is smaller. Colder air is less dense. There is more air below to push up more strongly. The weight of the air below is smaller. Use the worked example above to help you solve this problem. In a huge oil tanker, salt water has flooded an oil tank to a depth of h_2 = 4.75 m. On top of the water is a layer of oil h_1 = 8.40 m deep, as in the cross-sectional view of the tank as shown in the figure. The oil has a density of 0.700 g/cm^3. Find the pressure at the bottom of the tank. (Take 1,025 kg/m^3 as the density of salt water.) Calculate the pressure on the top lid of a chest buried under 3.80 meters of mud with density 1.75 x 10^3 kg/m^3 at the bottom of a 11.5-m-deep lake.
Answers
The pressure at the bottom of the oil layer is given by,
P₁ = P₀ + ρgh₁ = (1.01 x 105 Pa) + (7 x 102 kg/m³) (9.8 m/s2) (8.4 m)
P₁ = (1.01 x 105 Pa) + (576.2 x 102 Pa)
P₁ = 1.58 x 105 Pa
Now, the pressure at the bottom of the tank which will be given using a formula, we have
P[tex]__{bottom}[/tex] = P1 + \rho g h2 = (1.58 x 105 Pa) + (1.025 x 103 kg/m3) (9.8 m/s2) (4.75 m)
P[tex]__{bottom}[/tex] = (1.58 x 105 Pa) + (47.7 x 103 Pa)
P[tex]__{bottom}[/tex] = 2.05 x 105 Pa
The pressure under mud will be given as
P₁ = P₀ + ρgh₁ = (1.01 x 105 Pa) + (1.75 x 103 kg/m3) (9.8 m/s2) (3.8 m)
P₁ = (1.01 x 105 Pa) + (65.1 x 103 Pa)
P₁ = 1.66 x 105 Pa
Now, the pressure on the top lid of a chest buried will be given as:
P[tex]__{top}[/tex] = P1 + \rho g h2 = (1.66 x 105 Pa) + (1.025 x 103 kg/m3) (9.8 m/s2) (11.5 m)
P[tex]__{top}[/tex] = (1.66 x 105 Pa) + (115.5 x 103 Pa)
P[tex]__{top}[/tex] = 2.81 x 105 Pa
The question is clearer in the picture
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Related Questions
What is injection molding process?
Answers
Injection molding is a method to obtain molded products by injecting the plastic material molten by heat into a mold, and then cooling and solidifying these products. The method is suitable for the mass production of products with different and complicated shapes, and takes a large part in the area of plastic processing.
There are four stages in the cycle. These stages are the clamping, injection, cooling and ejection.
For example, there are several products and industries where injection molding is used, like in producing toys, bottle caps, surgical devices, jewel boxes, and even automotive components.
Separate materials can be combined in one part in a type of injection moulding defined as a two-shot mould. This technique can be used to add a soft touch to proper plastic products, add colours to a part or produce items with different performance levels.
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Injection moulding is a method to obtain moulded products by injecting the plastic material molten by heat into a mould, and then cooling and solidifying these products.
Define injection molding?
Injection moulding is a manufacturing process that involves injecting molten material into a mould. Injection moulding can be done with a variety of materials, the most frequent of which being metals (for which the technique is known as die-casting), glassware, elastomers, confections, and, most typically, thermoplastic and thermosetting polymers. The part material is supplied into a heated barrel, mixed (using a helical screw), and injected into a mould cavity, where it cools and hardens to the cavity's configuration. After a product is designed, a mould-maker (or toolmaker) creates moulds from metal that are precision-machined to form the intended part's features. Injection moulding is commonly utilised for producing a wide range of parts, from small components to whole automotive body panels.
Injection moulding is a method to obtain moulded products by injecting the plastic material molten by heat into a mould, and then cooling and solidifying these products. There are four stages in the cycle. These stages are the clamping, injection, cooling and ejection.
For example, there are several products and industries where injection moulding is used, like in producing toys, bottle caps, surgical devices, jewel boxes, and even automotive components.
Separate materials can be combined in one part in a type of injection moulding defined as a two-shot mould. This technique can be used to add a soft touch to proper plastic products, add colours to a part or produce items with different performance levels.
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Pls help I’ll give BRAINLIEST!
Answers
Answer:
Yes. Producers are the basis of all food webs, for if there weren't any producers, there wouldn't be any food web whatsoever. The role of producers is the building block of food webs. They start out as not needing any other organism to be dependent of, then get consumed to form such a food web, whether it's in the ocean, in a jungle, or in the Arctic.
Explanation:
Answer: The producers play the main role in the food web .
Explanation:
Only producers have the ability to make food by trapping sunlight. Consumers require this energy because they cannot make it on their own. This energy is passed own throughout the individual food chains which make up the food webs. All these organisms provide energy for all other trophic levels ( organisms called consumers that consume (eat) other organisms for energy). that come above them. So there producers are considered as the basis of all food webs
A 200 N object is resting on a surface with a s = 0.15. A person pushes horizontally with a force of 20 N. Calculate the magnitude of the force of friction.
Answers
30 N is the magnitude of the force of friction.
F=μN
μ= 0.15
N= 200 N
F=200 N×0.15
F=30 N
In mechanics, a force is any action that seeks to preserve, modify, or deform a body's motion. Isaac Newton's three principles of motion, which are outlined in his Principia Mathematica, are frequently used to illustrate the idea of force (1687).
Newton's first law states that unless a force is applied to a body, it will stay in either its resting or uniformly moving condition along a straight path. According to the second law, when an external force applies on a body, the body accelerates (changes velocity) in the force's direction.
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1. what hypothesis will the experiment test? whether land or water heats faster 2. what are the variables? land and the water 3. what purpose would the sand serve? 4. what purpose would the water serve? 5. what purpose would the heat lamps serve? 6. what purpose would the thermometers use? 7. how can you use these materials to test whether land or water heats faster? 8. how would you compare whether land or water heats faster? 9. within a 24-hour period, at what three points should the temperature be taken? why? 10. what would an effective conclusion need to include?
Answers
Land surfaces being darker absorb much more solar radiation than water. . Water leads in reflecting the most solar radiation that reaches the surface back in to the atmosphere.
How does this occur?
Sand heats up faster than water because it contains a lower specific heat. Water one the other hand requires one calorie of energy to raise the temperature of one gram of water by one degree Celsius. Sand takes 19 calories per gram to raise the temperature of the sand by 1 degree Celsius. While Sand requires fewer calories to raise its temperature one degree Celsius and that’s why it heats up faster than water.
Land absorbs more solar radiation the land surface retains more heat as do the vegetation for energy.
Therefore during this experiment the Sand did heat up much faster than water during this experiment. This happened because of the specific heat of the sand caused it to start heating up rapidly under the lamp as the time went.
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question: how does the size of the milky way compare to the size of the spiral nebulae in your random sample? is the milky way many times larger than, many times smaller than, or typical of the spiral nebulae? (2 points)
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Our Solar System is contained within the Milky Way galaxy, which gets its name from how it appears to us on Earth: a hazy ribbon of light visible in the night sky made up of stars that are too close together to be seen individually.
Our galaxy is around 100,000 light-years big and likely includes 100 to 400 billion stars. That sounds enormous, and it is—at least until we start putting it in the context of other galaxies.
The Milky Way is a massive cluster of stars, gas, and dust. Because it would appear to be a spinning pinwheel from the top or bottom, this galaxy is known as a spiral galaxy. About 25,000 light-years from the galactic center, on one of the spiral arms, is where the Sun can be found.
Spiral nebulae are objects that resemble spiral-shaped clouds but which are actually galaxies outside of our Milky Way galaxy.
Shapely asserted that what were then referred to as "spiral nebulae," such as Andromeda, are nearby and far smaller than the Milky Way, and that the Milky Way is so large that it is the main object in the cosmos.
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Use the simulation to answer the question.
Force and Motion Basics (select Acceleration)
What happens to the acceleration when the net applied force acting on the box increases?
(1 point)
O It becomes zero.
O It decreases.
O It remains the same.
O It increases.
Answers
Answer:
it increases
Explanation:
Uv rays are a type of ""ionizing radiation"" and are energetic enough to damage biological tissue such that they degrade into ions and electrons. What other forms of electromagnetic radiation do you think could be ionizing?.
Answers
The other forms of electromagnetic radiation you think could be ionizing are x-rays and gamma rays.
Ionizing radiation, including nuclear radiation, consists of subatomic debris or electromagnetic waves which have sufficient strength to ionize atoms or molecules by using detaching electrons from them.
Electromagnetic radiation consists of waves of the electromagnetic subject, which propagate thru an area and deliver electromagnetic radiant electricity. It includes radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays. All of those waves form part of the electromagnetic spectrum.
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First, find the magnitude of v⃗ , that is, the speed v of the two-car unit after the collision.
Answers
The magnitude of v⃗ is {sqrt(m1v1)2+(m2v2)2/ m1+m2}, that is, the speed v of the two-car unit after the collision.
What is collision?In physics, collisions occur when particles, aggregates of particles, or solids come close to each other, interact and affect each other. Collisions are of three types Fully elastic collision, inelastic collision and Perfectly inelastic collision. Multiply the mass of the second object by its velocity. For example, if the weight is 1,000 and the speed is -30 meters per second, then its momentum is 30,000 kg meters per second. Add the two velocities together to determine the direction the object will move after a collision. So the formula for determining the size of a vector (in 2D space) is v = (x, y).|v| = √(x2 + y2). This formula is derived from the Pythagorean theorem. The formula V = (x, y, z) that determines the size of a vector (in 3-dimensional space) is:|V| = √(x2 + y2 + z2)To learn more about collision from the given link :
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What are one of the benefits of keeping your supplies stocked and your electronics in working order? It ensures that you have lots of options about how to do your homework. It allows you to do your best the first time. It makes sure your work does not take too long. It ensures that you do your work.
Answers
One of the benefits of keeping your supplies stocked and your electronics in a perfect working condition is that:
It makes sure your work does not take too long
How keeping supplies stocked and electronics in working order saves timesIn a normal system and environment, the importance of keeping goods or supplies well cannot be overemphasized. In such a system, when customers comes to get goods, it makes it easier for them to release as it won't take much time presenting it.
That being said, our electronics too, when they are in a perfect order of arrangements, puts them in good condition.
In conclusion, when we keep supplies stocked, it helps to saves time.
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What is the expected ratio of free-hanging earlobes to attached earlobes in the offspring
Answers
The expected ratio of free-hanging earlobes to attached earlobes in the offspring is 1:2.
How to illustrate the ratio?The diagram depicts a Punnett square used to predict the earlobe shape of two parents' offspring. The capital A represents free-hanging earlobes, while the lowercase a represents attached earlobes.
The Punnett square is a square diagram used to predict genotypes of a specific cross or breeding experiment. It is named after Reginald C. Punnett, who invented it in 1905. Biologists use the diagram to calculate the likelihood of an offspring having a specific genotype.
In this case, the genotype rato based on the attached diagram is 1:2.
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consider the motion of a particle in which the position is given as X=3t-3t².what is the average speed at t1=1s and T2=3s
Answers
The average speed of a particle in the position X=3t-3t² is 18m/s
What is the average speed at t₁ = 1s and t₂ = 3s?At the position X = 3t - 3t²
t₁ = 1s = X = 3(1) - 3(1)²
X = (3 x 1) - (3 x 1²)
X = 3 - 3 = 0m
At t₂ = 3s = X = 3(3) - 3(3)²
X = (3 x 3) - (3 x 3²)
X = 9 - 27 = -18m
Displacement, Δx = X₂ - X₁
= -18 - 0 = -18m
The change in time would then be
Δt = t₂ - t₁
= 2 - 1 = 1
The Average velocity can be calculated by dividing the change in displacement by the change in time, Vₐ = Δx/Δt
Vₐ = -18m/1s = -18m/s
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Hot air is less dense than cold air. Could a hot-air balloon be flown on the moon, where there is no atmosphere?.
Answers
A hot-air balloon be flown on the moon, buoyancy force wouldn't exist because there isn't any cold air to replace it.
What is density?
Density: Solid substance mass per unit volume M stands for mass and V for volume, and the formula for density is d = M/V. Grams per cubic centimetre is the unit of density that is most frequently used.
What is gravity?
The ratio of a substance's density (mass per unit volume) to a given reference material, frequently a liquid, is known as its specific gravity. The density of a substance (g/mL) equals the specific gravity of water at the same temperature (g/mL).
What is buoyancy ?
Buoyancy is the tendency of an object to float in a fluid. When there is gravity present, an upward force known as the buoyant force is felt by any object submerged in a liquid or gas. Pressure differences acting on an object's opposing sides cause buoyancy when it is submerged in a static fluid.
The buoyancy force wouldn't exist because there isn't any cold air to replace it.
Therefore, Could a hot-air balloon be flown on the moon, buoyancy force wouldn't exist because there isn't any cold air to replace it.
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During a classroom lab activity, students built each of the circuits shown below and measured the current and resistance in each circuit. Each circuit contains a 1. 5-volt battery and each bulb has a resistance of 50 Ω.
When the switch is closed, in which circuit would resistance be the highest and current be lowest?
Answers
Answer:3 the highest 1 the lowest
Explanation:
When the switch is closed, in the third circuit the resistance would be the highest and the current be the lowest, so option B is correct.
What is current?When describing how much electricity flows through a circuit and how it flows in an electronic circuit, the term "electric current" is often employed. It is measured in amperes (A). The ampere number rises as more electricity flows through the circuit.
Given:
The Voltage in the circuit, V = 1.5 volts,
The resistance in the circuit, R = 50 Ω,
As you can see in the third diagram, there is a parallel connection of the bulb, so the voltage in the circuit will remain the same and the current depends on the resistor, so there will be higher resistance in this circuit.
And if the resistance is high the current flow will be low, (By Ohm's law)
In the first circuit, there is only one bulb, so resistance will be low, and the current flow will be high.
Therefore, when the switch is closed, in the third circuit the resistance would be the highest and the current be the lowest.
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For the common emitter amplifier below, calculate the small signal gain Av=vo/v (from the transistor base to the output node), the input resistance Rm. the output resistance R, and the overall voltage gain G.=vo/vs (from the voltage source to the output node). Assume that the capacitors act as AC shorts and that the transistor?s r0 is infinite (can be neglected). Note, you can use the small signal parameters that you solved for in Problem
Answers
In amplifiers, the coupling and bypass capacitors appear to be shorts to ac at the mid band frequencies.
At low frequencies the capacitive reactance, XC, of these capacitors affect the gain and phase shift of signals, so they must be taken into account.
[tex]\alpha =\frac{1}{2\pi f}[/tex]
At lower f, the internal capacitances have a very high Xc like opens and have no effect on the transistor’s performance. However, as the frequency goes up (at high f), the internal capacitive reactances go down and they have a significant effect on the transistor’s gain and also it introduces a phase shift; it has the inverse effect to the coupling capacitor.
Miller’s theorem states that C effectively appears as a capacitance from input to ground is as given below-
[tex]Cin= C(A+1)[/tex]
[tex]Cout=\frac{CA +C}{\alpha }[/tex]
This shows the effective input and output capacitance.
Critical frequency is given as -
[tex]\alpha = \lim_{n \to \infty} a_n[/tex]
= 10 log(0.5)
=-3dB
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What is the heat generated by a resistor of 25 Ω that has a current of 5 amps when hooked up to a 125 V source flowing through it for 5 days?
Answers
The heat produced by a resistor is 1.134 × 10⁹ Calorie.
What is resistor?A resistor is an electrical component that controls or restricts how much electrical current can pass across a circuit in an electronic device. A specified voltage can be supplied via resistors to an active device like a transistor.
Given parameters:
Resistance of the resistor; R = 25 Ω.
Current; I = 5 amp.
Voltage; V = 125 V.
Time; t = 5 days = 5×24×60×60 second =432000 second.
We have to find; the heat generated by a resistor; q = ?
We know that, the heat generated by a resistor; q = I²Rt Joule.
= 5² × 25 × 432000 Joule.
= 2.7 × 10⁸ Joule.
= 4.2 × 2.7 × 10⁸ Calorie.
= 1.134 × 10⁹ Calorie.
Hence, heat generated by a resistor is 1.134 × 10⁹ Calorie.
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if an object is rolling without slipping, what is the relationship between the linear speeds of the top point of the object, the center of the object, and the bottom point where the object contacts the ground?
Answers
The relationship between the linear speeds of the top point of the object, the center of the object, and the bottom point where the object contacts the ground
v_CM = ωR
What do you understand by rolling motion?
In order for two objects to come into touch with one another without sliding, optimal conditions must exist. This is where rolling comes into play. Rolling is a sort of motion that combines rotation and translation of the object with regard to a surface. Pure rolling is referred to as rolling without sliding.
As the wheel rolls on the ground, let's assume that the entire wheel is moving, and the wheel's centre of mass is moving at a certain speed, v_CM.
Each point along the wheel's edge will have a velocity v determined by the formula:
v = v_rot + v_CM
in the frame of reference of the ground.
The point is currently at rest in relation to the ground if the wheel is not slipping with regard to it.
The v_rot and v_CM vectors are anti-parallel, horizontal, and have a sum of zero at the point in touch with the ground.
v = v_rot + v_CM
0=v_rot + v_CM
v_rot = v_CM
Relationship between the centre of mass's speed and angular velocity for rolling without slipping:
v_CM = ωR
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calculate angular momentum: bat (1.4 kg) radius of gyration of 0.81m. angular velocity of bat is 916.8 deg/s.
Answers
The definition of angular momentum (L), with some simplification, is the object's distance from the rotation axis multiplied by the linear momentum: L = r*p or L = mvr.
In rotations about an object's symmetry axis, the angular momentum The product of an object's moment of inertia I and its angular velocity about the selected axis is known as L. L = Iω. The characteristic of any rotating object determined by the product of the moment of inertia and the angular velocity is known as angular momentum. It is a characteristic of rotating bodies determined by the sum of their moment of inertia and angular velocity.
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Why is the choice of a radiopharmaceutical important in radioisotope imaging?
A diagram of a closed circuit with a power source on the left labeled 120 V. There are 3 resistors in parallel, separate paths, connected to it labeled 5.0 Ohms, 10.0 Ohms and 15.0 Ohms.
What is the equivalent resistance in this parallel circuit?
Ω
What is the voltage in the circuit?
V
What is the total current in the circuit?
A
Answers
The radiopharmaceutical is important in radioisotope imaging because it must be able to show the required organ correctly. The equivalent resistance is 2.72 ohm and the current is 44.1 A.
What is a circuit in parallel?We know that when a circuit have been connected in parallel then it means that the resistors have been connected to a common junction. It is clear that we have the circuit that have the resistors; 5.0 Ohms, 10.0 Ohms and 15.0 Ohms.
We then have;
1/R = 1/5 + 1/10 + 1/15
1/R = 0.2 + 0.1 + 0.067
R = 2.72 ohm
The current in the circuit can be obtained from;
I = 120 V/ 2.72 ohm
I = 44.1 A
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In florida, after three months, a driver with a learner's permit may drive until _____.
Answers
In florida, after three months, a driver with a learner's permit may drive until 10 P.M.
According to the Florida Department of Highway Safety and Motor Vehicles (HSMV), a learner's daytime license only permits you to drive until 10 p.m. and only during daylight hours for the first three months.
What is learner's liscense?
A learner's permit serves as a restricted driving license that permits a person to practice driving in open spaces around the nation while accompanied by someone who has a regular driving permit.
Therefore, In florida, after three months, a driver with a learner's permit may drive until 10 P.M.
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In florida, after three months, a driver with a learner's permit may drive until 10 P.M.
What is learner's liscense?
A learner's permit serves as a restricted driving license that permits a person to practice driving in open spaces around the nation while accompanied by someone who has a regular driving permit.
According to the Florida Department of Highway Safety and Motor Vehicles (HSMV), a learner's daytime license only permits you to drive until 10 p.m. and only during daylight hours for the first three months.
Therefore, In florida, after three months, a driver with a learner's permit may drive until 10 P.M.
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the chemists' blank is another name for the periodic table
Answers
The chemist's guide or encyclopedia is another name for the periodic table.
What is periodic table?
Periodic table is a tabular arrangement of elements in the form of a table. In the periodic table, elements are arranged according to the modern periodic law which states that the properties of elements are a periodic function of their atomic numbers.
It is called as periodic because properties repeat after regular intervals of atomic numbers . It is a tabular arrangement consisting of seven horizontal rows called periods and eighteen vertical columns called groups.
Elements present in the same group have same number of valence electrons and hence have similar properties while elements present in the same period show gradual variation in properties due to addition of one electron for each successive element in a period.
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Waves pass energy through matter ,but not space. True or false?
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trevor starts his motorcycle to go for a ride. if he accelerates at 10 m/s2 over a distance of 80m, how fast is he going if he started at rest?
Answers
He is going at the velocity of 40m/s even though he started at rest.
What is acceleration?
Acceleration is the rate at which velocity changes with respect to both speed as well as distance. If an object speeds up or down and is moving in a straight line, then the object is said to be accelerated. In a circular motion, the speed remains constant but the body is accelerated as the direction keeps on changing. The SI Unit is meter per second m/s2
Acceleration= 10m/s2
Initial velocity= 0m/s as the body started at rest.
Distance = 80 m
v2= u2+ 2aS
= 02+ 2 10 80
= 1600
v= 40m/s
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The saying is "Money can buy happiness, but research finds that in the United States those who earn more than
amount.
O $92,000
O $55,000
O $40,000
O $75,000
Save Answer
per year are not measurably happler than those who earn below that
Answers
Answer:
$92,000
Explanation:Happiness starts from within.
The United States those who earn more than amount is $92000. Hence option 1 is correct.
What is happiness?Happiness is defined as an emotional condition characterized by emotions of happiness, pleasure, and satisfaction. The following three things have an impact on happiness: meaningful relationships with other people. preserving a nice hobby or workplace. assisting individuals in need or the community.
People who place a higher value on time than money are generally happier than those who do not think that having more time is preferable to having more money, according to a UCLA research of 4,400 Americans. In a six-month experiment, those who received $10,000 financial transfers generally felt happier than those who did not.
Thus, the United States those who earn more than amount is $92000. Hence option 1 is correct.
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HELP STUCK IN PHYSICS 100PTS!!!
A small piece of putty of mass 27 g and
negligible size has a speed of 2.2 m/s. It makes
a collision with a rod of length 5 cm and mass
78 g (initially at rest) such that the putty hits
the very end of the rod. The putty sticks to
the end of the rod and spins around after the
collision; the putty-rod center of mass CM has
a linear velocity v and an angular velocity ω
about the CM.
(a)What is the angular momentum of the system relative to the CM after the collision?
The rod has a moment of inertia equal to (1/12)MR^2
about its center of mass; consider
the piece of putty as a point mass. Assume
the collision takes place in outer space where
there is no gravitational field and no friction.
Answer in units of kg · m2
/s.
(b)What is the system’s angular speed about the
CM after the collision?
Answer in units of rad/s.
please help I'm so confused :(
Answers
Assume: This collision takes place in outer space where there is no gravitational field and no friction. A small piece of putty of mass 31 g and negligible size has a speed of 2.5 m/s. It makes a collision with a rod of length 3 cm and mass 83 g (initially at rest) such that the putty hits the very end of the rod. The putty sticks to the end of the rod and spins around after the collision. After the collisions the center-of-mass has a linear velocity V and an angular velocity ω about the center-of-mass “+ cm”. What is the velocity V of the center-of-mass of the system after the collision? Answer in units of m/s. Icm = 1/12 MR^2 Ipm = MR^2 The Attempt at a Solution First I said that that the moment of inertia for the system is I=1/12(M+m)R^2 ("M" being the mass of the rod and "m" being the mass of the putty) Then using conservation of angular momentum i got: mR^2w = (R^2/12)(M+m)w substituting the respect v's (and Rs) in for w i got: mv1R = (R/12)(M+m)v2 then v2 = 12mv1/(M+m) plugging in my numbers i got [12(31)(2.5)]/[(31+83)] = 8.16 m/s
what is the microscopic term for when a slide should be in focus at a higher magnification once you have proeprly focused
Answers
When a slide needs to be in focus at a greater magnification after being properly focused, it is known as a compound microscope in microscopy.
How does a compound microscope work?Compound microscope definition. A high-resolution microscope with two sets of lenses produces a two-dimensional image of a sample. When more than a lens is used in the microscope, it is referred to as a compound lens. Additionally, one of the varieties of optical microscopes is the compound microscope.
What are the functions of compound microscopes?Compound microscopes are used to look at tiny samples that are invisible to the. These samples are frequently put on slides for viewing under a microscope. When utilizing a stereo microscope, slides are not required because there is more room under the lens for larger objects like rocks or flowers.
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SOLVE THIS FAST PLS I NEED THIS TODAY ITS EASY BUT I DO NOT UNDERSTAND AS MUCH
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what is the force of gravity between samantha and the earth? samantha's mass: 55.80 kg, earths mass: 6.0 x 1024 kg, radius of earth: 6.4 x 106 m
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The gravitational pull of the earth on Samantha is 3.6 x 1022, which is the force that pulls objects toward the center of a planet or other body.
What does the term "human gravity" mean?Gravity is the downward force or pull that the earth exerts on your body. Your body's mass was concentrated at the point where your center of mass is located. Gravity center The center of gravity of the human body is a notional position where the gravitational force is also said to appear to act (COG).
What is the origin of gravity?Every physical thing in the universe is impacted by the gravitational force, also known as gravity. Any two non-zero mass objects or particles will gravitationally tend to gravitate toward one another. Gravity has an impact on everything, from atomic particles to galaxy clusters.
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The principle that properties such as mass, volume, and number remain the same despite changes in the forms of objects is called.
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The principle that properties such as mass, volume, and number remain the same despite changes in the forms of objects is called the principle of conservation.
The concept of preservation is the idea that the quantity does not change even if the appearance changes. The same is true for variables such as volume, quantity, and area. The ability to understand that the distribution of matter does not affect its mass, quantity, volume, or length is more specifically what is meant by conservation.
In physics, a conservation law states that particular a particular measurable system does not change as the system evolves over time.
The principal has 6 laws which are
conservation of energy conservation of linear momentumconservation of angular momentumcharge baryon number and lepton numberTo learn more about the conservation principle click https://brainly.com/question/28994704?referrer=searchResults
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A cook heats a meal in a microwave oven. What energy transformations occur between the microwave oven and the meal?.
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Energy transformations that occur between the microwave oven and the meal when a cook heats a meal in a microwave oven is electrical energy to electromagnetic energy to thermal energy.
Microwaves are one of many different forms of energy that occur in nature. Other forms include visible light, radio waves, and X-Rays. Microwaves are very short waves, hence the prefix micro- , which means "small." When microwaves hit water molecules, for example, the water molecules begin to bounce around, hitting against one another. Something hitting against something else causes friction. Friction produces heat, which can be used to cook food.
How do microwaves cook?
Microwaves are absorbed by the water, fats, and sugars in food and are converted into heat, which cooks the food. Because most plastics, glass, and ceramics do not absorb microwaves, the microwaves heat food without heating the container or the inside of the oven. If a container is hot when you take it out of the microwave oven, it is because the hot food has conducted heat to the container.
So basically, microwave oven is electrical energy (microwave oven needs to be plugged into power outlet to turn it on) into electromagnetic energy (where the wave of energy starts to travel and absorbed by the water, fats, and sugars in food) into thermal energy (which comes from the molecule begin to bounce around, hitting against one another, that will cause friction which produces heat and can be used to cook food).
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What is the correct term for rising water vapor meeting colder air and turning back into water droplets?.
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Condensation is the correct term for rising water vapor meeting colder air and turning back into water droplets.
Condensation is the exchange of the country of matter from the fuel section into the liquid section and is the opposite of vaporization. The word most often refers to the water cycle.
Condensation is the method thru which the bodily country of remembering adjustments from the gaseous phase into the liquid phase. for instance, condensation occurs whilst water vapor (gaseous shape) inside the air changes into liquid water whilst it comes in contact with a cooler surface.
If gaseous water vapor cools down sufficiently, it will flip lower back into a liquid - that's known as condensation. it's precisely the alternative to evaporation! while the clearly cold floor of an aluminum can comes into touch with the water vapor within the air, it cools some of them down enough to show them lower back into liquid.
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