Draw a circuit diagram to show how water conducts electricity
Answers
Given is the diagram to show that water conducts electricity.
Water is a good conductor of electricity. The ions in the water conduct electricity because of their positive and negative charges. When the electrolytes tend to dissolve in the water, they get split into cation or positively charged and anions or negatively charged particles.
Take a beaker and fill it half with water.Connect a battery with a bulb and switch along with two rods as shown in figure.Put the rods in beaker.Turn on the switch.The bulb glows.Now remove water from beaker and then repeat the steps.
You will observe that bulb doesn't glow.
This experiment confirms that water is good conductor of electricity.
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Related Questions
A full grocery cart requires more force to push than an empty cart what law is it?
Answers
Answer:
The law of conservation of matter.
A full grocery cart requires more force to push than an empty one because the weight of the groceries is pushing down on the cart, and the cart itself is resisting this downward force.
Hello please .
How far would a person run in seconds at an average speed of 7ms-1
Answers
At an average speed of 7m/s, the distance covered in one second is 7 meters.
What is the distance covered in one second?Speed is simply referred to as distance traveled per unit time.
It is expressed mathematically as;
Speed = Distance ÷ time.
Given the data in the question;
Speed = 7m/sElapsed time = 1 secondDistance traveled = ?Plug the given values into the above formula and solve for distance traveled.
Speed = Distance ÷ time
Distance = Speed × Time
Distance = 7m/s × 1.0s
Distance = 7ms/s
Distance = 7m
Therefore, in a second, the person covers 7 meters.
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Which way is rain formed in the tropics where the air is warmer?
A) Condensed ice crystals collect other ice crystals until they fall from the clouds and
then melt into rain when they hit a layer of warm air.
B) Condensed water droplets collect other water droplets to form the collector drop
until they fall from the clouds as rain.
Answers
Condensed water droplets collect other water droplets to form the collector drop until they fall from the clouds as rain. In this way rain is formed in the tropics where the air is warmer.
What does the process of rain formation?A significant volume of water evaporates and is released into the atmosphere when water bodies are heated during the day. Evaporation is the term for this. Water vapour is carried upward by the hot air as it rises. The air cools and expands as it rises. Condensation is the term for this occurrence. Clouds are created as a result of water vapour condensation. With the assistance of the wind, these clouds are transported away, and when they become heavy, they drop to the ground as rain.
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A 1000-kg car is moving at 27 m/s when it slams on the brakes and skids to a stop with a leftward acceleration
of 9 m/s/s.
Answers
The length of skidding marks will be of 46.49m
Explain what an acceleration is.Acceleration is the rate at which the direction and speed of motion change over time. It is said to have been accelerated when something changes its direction and moves faster or slower. Motion on a circle accelerates even when the speed is constant because the direction is constantly changing.
Acceleration is the term for the rate at which speed changes. Velocity is a vector quantity because it has both a magnitude and a direction component. Acceleration is also a vector quantity since it is simply the rate at which velocity changes.
Given m = 1000 kg
v = 27 m/s
µ = 0.80
we have a = µ g and v² - u² = 2as
then for s = u²/2gµ
s = 27²/2 X 9.8 X 0.8
s = 46.49 m
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Complete question is " A driver in a 1000 kg car traveling at 27 m/s slams on the brakes and skids to a stop. If the coefficient of friction between the tires and the horizontal road is 0.80, how long will the skid marks be?".
Once a tropical storm forms over the ocean, which conditions must exist in its path for it most likely to develop into a hurricane?
O warm ocean temperatures, moderate winds, and moist atmospheric layers
O cold ocean temperatures, weak winds, and dry atmospheric layers
O warm land temperatures, strong winds, and moist atmospheric layers
O cold land temperatures, moderate winds, and dry atmospheric layers
Answers
Answer:
O warm ocean temperatures, moderate winds, and moist atmospheric layers
the theory that dark matter is not real and is just a a problem with our theory of gravity has been falsified by
Answers
The findings of Fritz Zwicky and Jan Oort suggest the motion of neighboring stars in our galaxy and galaxies in the Coma cluster do not follow Newton's law of gravity.
Exists dark matter in reality?In fact, the gravitational pull that dark matter appears to have on visible stuff is the only way that researchers have been able to deduce its existence. Dark matter, which makes up about 27% of the cosmos, appears to outnumber visible matter by a factor of nearly six to one.
Do dark matter and gravity interact?Given the rates at which astronomers observe the galaxies revolving, the prevailing view among cosmologists holds that dark matter permeates nearly every galaxy and provides the extra gravity that prevents stars from swirling out into space.
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A network of transformers and transmission cables transfers electrical power from
power stations to consumers.
What is this network called?
Answers
A transmission Grid is called a network of transformers and transmission cables that transfer electrical power from power stations to consumers
Electrical transmission is the process of providing highly efficiently generated electricity to a district or over larger and longer distances. The main point of the grid is to give people access to electricity 24 hours without interruption and without any trouble in populated areas. Transformers play a crucial role in this. Transformer help in increasing the voltage of the grid to make it more powerful and effective. It helps in the feasible transmission of the grid.
The electrical transmission system is combined with power plants in cities, distribution systems for easier access to electricity, and sub-stations for backup and other purposes which is to form what is known as the electrical grid. The grid meets people's electricity requirements and is what gets the electrical power from its generation to its end use. Since power plants are most often located outside of densely populated areas, the transmission system must be fairly large scale.
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A network of transformers and transmission cables transfers electrical power from power stations to consumers is called as a transmission grid.
What is a transmission grid?Electric power transmission is the bulk movement of electrical energy or power from a generating site, such as a big power plant, to an electrical substation or other places. The interconnected lines which facilitate this movement of electrical energy form a transmission network or transmission grid.
A transmission grid is a network of power stations, transmission lines, and the substations. Energy is generally transmitted within a grid through the three-phase AC. Single-phase AC is used only for distribution to end users however, it is not usable for the large polyphase induction motors. The two-phase transmission was used but it either required a four wires system or three wires with unequal currents. Higher order phase systems require more than three wires, but they cannot deliver little or no benefit.
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you are riding on the edge of a spinning playground merry-go-round. if you pull yourself to the center of the merry-go-round, what will happen to its rotation?
Answers
If you pull yourself to the center of the merry-go-round, the rotation of the merry go round will decrease.
What is the centripetal acceleration of a merry go round?This is the radial acceleration experienced by a person moving in a circular path as the merry-go-round rotates about its mean position.
a = v²/r
where;
v is the linear speed of the merry go roundr is the radius of the merry go rounda is the centripetal acceleration of the merry go roundFrom the formula given above, as the radius of the merry go round increases, the centripetal acceleration of the merry go round decreases.
v = ωr
where;
v is the tangential speed or linear speed of the merry go roundr is the radius of the circular path from the edgeThus, when the radius of the circular path decreases, the speed of the merry go round will decrease as well.
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How can you find the distance travelled or displacement of an object in a velocity-time graph?
Answers
Answer:
by calculating the total area under the displacement of the graph
if a system does 57.0 kj of work on its surroundings and releases 105 kj of heat, what is the change in the internal energy of the system, in kj?
Answers
The changes in the internal energy of the system -164 KJ.
Solution:
change in internal energy = q + w
= -105 KJ(+ 57 kg)
= -164 KJ.
The change in internal energy of the system is the sum of heat transferred and work done. The heat flux is equal to the change in internal energy of the system plus the PV work done. The change in internal energy of the system is the sum of heat transferred and work done.
The heat flux equals the change in internal energy of the system plus the PV work. An isolated system cannot exchange heat or interact with its surroundings, so its internal energy change is equal to zero. But in a cyclical process, the total change in the internal energy of the system is zero.
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next we move the q and 4q charges to be 3 times as far apart as they were: two charges, q and 4q, farther apart now what is the magnitude of the force on the 4q charge?
Answers
F"=4F/9 or F"=4F ÷9 is the magnitude for the force acting on the 4q charge.
Coulomb's law states that the magnitude of the forces between Q and 4Q is,
F'=КQ×4Q÷d²
= 4F ---------------------------(1)
Now, if the distance is made 3 times greater than before, or in three dimensions,
F''=КQ×4Q÷ (3d)²
Or F''= 4КQ² ÷ 9d²
or, F''= 4÷9 × ₍КQ²÷ d²₎
or, F''= 4F/9
Coulomb's law: a rule indicating that opposing charges attract and similar charges repel, with a force proportional to the product of the charges and inversely proportional to the square of the space between them.
Dimensions: an area that may be measured for its length, width, depth, or height.
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On a recent adventure trip, Anita Break went rock-climbing. Anita was able to steadily lift her 80.0-
kg body 20.0 meters in 100 seconds. Determine Anita's power rating during this portion of the
climb.
Answers
Anita's power rating during this portion of the climb is 15680 J.
What is the rock-climbing?Rock climbing is an activity in which people climb up, down, or over natural or man-made rock cliffs. The objective is to reach the top of the terminus of a path without falling. It is under the physical Education.
Given that,
mass (m) = 80.0 kg
time = 100 sec
height = 20.0 m
Now, Anita needs to apply a force that is equal to her weight in order to elevate her body a distance of 20.0 m.
Thus, force is equal to:
F = (80 kg) × (9.8 N/kg)
F = 784 N.
So the work she does to lift her body in 20.0 m is:
W = (784 N) ×(20.0 m) × cosine(0°)
W = 15680 J.
So, Anita's power rating during this portion of the climb is 15680 J.
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if the ring is off-center when it drops on the disk, how will that affect the results? think about the effect on the moment of inertia.
Answers
The disk will continue to spin if the ring strikes it off-center, but the moment of inertia will be affected.
The disk will be out of balance due to the ring's off-center placement, which will result in a lower moment of inertia than it would have if the ring were centered. The disk will therefore not spin as quickly or for as long as it would if the ring were in the middle.
This implies that the ring's rotational energy will not be dispersed uniformly, leading to an uneven, or skewed, rotation. The off-center ring's inability to accurately reflect the moment of inertia will result in an erroneous measurement of it.
What is moment of inertia?
The term "moment of inertia" refers to a physical quantity that quantifies a body's resistance to having its speed of rotation along an axis changed by the application of a torque (turning force).
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2. A school bus moves at a speed of 35 miles per hour (mph) for 20
miles. How long will it take for the bus to arrive at school?
Answers
Answer:
Time, t = 0.57 hours or 34 minutes and 12 seconds.
Explanation:
Given:
Speed of the school bus, s = 35 mi/hr
Distance covered by the bus, d = 20 miles
Speed(s) is equal to Distance over Time (s=d/t)
Meaning time is equal to distance over speed (t=d/s)
plugging our given information into the formula, we know Time is equal to 20 over 35 (t=20/35)
20/35=0.57, so
t = 0.57 hours
the time taken by the bus to reach school is 0.57 hours or 34 minutes and 12 seconds.
Answer:
Explanation:
Mathematically, speed is given by this formula;
Speed=distance/time
Making time the subject of formula, we have:
Time = distance/speed
Substituting the given parameters into the formula, we have;
Time = 20/35
Time = 0.571 hours.
when did the photons in the cosmic microwave background first travel freely through the universe?
Answers
what is the ppc cycle? what is the process?
Answers
Answer:
The PPC Cycle refers to Production Planning Control. It has 3 phases—preplanning, planning, controlling. The Pre-Planning Phase consists of product development, sales forecasting, factory or plant layout, equipment selection policy, and preplanning of production just prior to large scale production.
What is the acceleration of a 50 kg object pushed with a force of 200N?
Answers
Answer:
40 m/s
Explanation:
F = ma (force = mass * acceleration)
a = F/m
a = 200 N / 50 kg
a = 40 m/s
an ambulance is generating a siren sound at a frequency of 2,400 hz. the velocity of sound is 345.0 m/s. if the ambulance is traveling at a velocity of 24.00 m/s toward from the stationary observer, then what is the frequency of the siren perceived by the observer?
Answers
The frequency of the siren perceived by the observer is 2,566 Hz.
Calculation:
F = fo(Vsound +V)/(Vsound⁻V source) 2000*(345+24)/345 = 2,566 Hz.
Frequency describes the number of waves passing through a particular location at a particular time. So if the wave takes 1/2 second to travel, the frequency is 2 per second. If it takes 1/100th of an hour, the frequency is 100 per hour.
The term frequency refers to the number of waves passing through a fixed point in a unit of time. It also describes the number of cycles or vibrations an object undergoes in periodic motion in a unit of time. The frequency of a particular data is the frequency with which the data value occurs. Denote the frequency of the data values by f.
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why were you cautioned not to mix the solution in one spot with the solution in another spot on your spot plate
Answers
Answer: Depending on the factors, combining two chemicals that aren't designed to interact might result in an explosion, an unintended chemical reaction, or a misleading result.
What is explosion ?
An explosion is a sudden increase in volume accompanied by a tremendous energy release that typically results in the production of high temperatures and the discharge of high-pressure gases. High explosive detonations produce supersonic explosions that move through shock waves.
Explosions often fall into one of three categories: chemical, mechanical, or nuclear. Every kind of explosion has the potential to be devastating and serious, wreaking unimaginable damage on the local populace, environment, and infrastructure.
What causes gamma ray bursts is one of the largest unsolved questions of all. These bursts, which happen around once every day, are the most powerful explosions known to science.
Thus, depending on the factors, combining two chemicals that aren't designed to interact might result in an explosion, an unintended chemical reaction.
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Write the derived unit of following physical quantities. (a) (Area) (b) (Pressure)
Answers
Answer:
The SI unit of Area is meter square (represent as m2)
The SI unit of pressure is one newton per square metre ( represent as N/m2).
An Amazon delivery driver, Shaggy, pushes a loaded dolly with a total mass of 30 kilograms onto a truck. Initially, the dolly accelerates at 0.2 meter/second^2. What force did Fred apply to the dolly?
Answers
The force applied to the dolly was 6N.
What is acceleration?Acceleration is the rate of change in velocity. It involves a change in speed and direction. When acceleration involves a change in speed only: Positive acceleration it occurs when an object speeds up. Negative acceleration it occurs when an object slows down.
Acceleration is a change of velocity over a period of time, expressed by the equation below.
F = ma
where f = force applied
m = mass of the body
a = acceleration of the body
F = ma
F = 30 x 0.2
F = 6N
In conclusion, the dolly received a force of 6N from Fred.
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A spring launches a 7kg box on the floor with
force of 50 N. what is the
box's
a net
acceleration?
Answers
The magnitude of acceleration of the box be 7.14 m/s².
What is acceleration?Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).
Mass of the box be: m = 7 kg.
Force applied on it: F = 50 N.
From Newton's second law of motion, we can write:
force = mass × acceleration
⇒ acceleration = force/mass = 50/7 m/s² = 7.14 m/s².
Hence, acceleration of the box be 7.14 m/s².
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A light shines on a metal surface but no electrons are observed to be leaving. What would we need to do experimentally to eject electrons from the surface?.
Answers
Suppose you have two pairs of the same shoes in different sizes. Would their coefficients of friction be the same? Explain.
Answers
Coefficients of friction would be the same for two pairs of the same shoes in different sizes as coefficient of friction does not depend on the size of shoes and weight.
Why coefficient of friction would be same for two pairs of shoes of different sizes?The force of friction does not depend on the area of the contact and friction slows a moving object down. Frictional force depends on the nature of the surfaces in contact and the materials.
The coefficient of friction depends on the objects that are causing friction and the value is usually between 0 and 1 . A value of 0 means there is no friction between the objects.
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An object moving at 44 m/s is increasing in speed by 2 m/s². After 3 seconds, what
would its velocity be?
Answers
Answer:
50m/s
Explanation:
a =(V-U)/t
V=? , U = 44m/s, t= 3s, a = 2m/s²
so, using the equation,
2= (V -44)/3
V = 50m/s
In a competition, a football player kicked a ball 250 meters into the air. While in flight, the ball traveled at
an average speed of 17.0 m/s. How long did the ball remain in the air?
Answers
With the assumption that 250 meters is horizontal range, the ball remain in the air for a period of 14.7 s
What is Range ?Range is the horizontal distance from the point of projection to the point where the projectile hits the projection plane again.
Given that In a competition, a football player kicked a ball 250 meters into the air. While in flight, the ball traveled at an average speed of 17.0 m/s.
The parameters are;
Range R = 250 mInitial speed u = 17 m/sPeriod T = ?R = uT
Substitute all the parameters into the formula
250 = 17T
T = 250/17
T = 14.7s
Therefore, the ball remained in the air for 14.7 s long.
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The bob of a simple pendulum is swinging between points X and Y.
It takes 8.6 s to swing from X to Y and back to X ten times.
What is the period of the pendulum?
A 0.43s
B 0.86s
C 4.3s
D 86s
Answers
If the bob of a straightforward pendulum swings between points X and Y, then its period is 0.86 seconds.
What does a pendulum do and why does it swing?a system made composed of a string that hangs from an overhead support as well as an object at the string's bottom. Gravity and the string's combined force cause the object to swing back and forth. Bob the Pendulum any item that is dangling from the pendulum string.
Why is the pendulum significant?Because a pendulum travels back to towards the mean position due to the influence of gravitational force, it is used to gauge the gravitational effect. A pendulum can be used to identify the moment because its time period is constant. A clock's hands are kept moving by a pendulum inside.
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how do the allowed orbits for electrons in atoms differ from the allowed orbits for planets around the sun? explain how the correspondence principle applies here.
Answers
The movement occurs as . Each orbit has a different energy, and electrons can move to other orbits by emitting or absorbing energy, which is also quantized.
The correspondence principle in physics states that the behavior of systems described by quantum mechanics theory reproduces classical physics in the limit of large quantum numbers.Bohr's correspondence principle is best understood as the statement that each allowed quantum transition between stationary states corresponds to one harmonic component of classical motion, according to the selection rule interpretation.To know more about Correspondence principle here
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Dakota moves a magnetic toy train toward a magnet that cannot move. What happens to the potential energy in the system of magnets during the movement?.
Answers
Explanation:
If the train moved against the magnetic force, the potential energy would increase.
consider the following circuit. after leaving the switch at the position a for a long time, move the switch from a to b. there will be current oscillations.
- What is the maximum current?
- Consider the following statements
A1. The current flow is counterclockwise
A2. The current is zero
A3. The current flow is clockwise
B1. The charge on the left plate of C is positive
B2. The charge on the left plate of C is zero
B3. The charge on the left plate of C is negative
Which pair of choices below best describesthe situation at t =5/8T, where T is the periodof oscillations in LC circuit? Let the timewhen the switch is moved from a to b be att = 0.
Answers
After leaving the provided switch at the given position for a longer time, then its moves given switch from a to b. At t = 0, the left part of the plate C has charge q = max and therefore, the current flowing through it is zero.
Oscillation is the repetitive or periodic variation, usually in time, of a few degree approximately a crucial value or extra one-of-a-kind states. Familiar examples for all oscillation encompass a swinging type of pendulum with alternating current. A wave is stated to oscillate, which means to transport to and fro in a regular, repeating way.
This fluctuation may be among extremes for all position, like force or quantity. Different sorts of waves have one-of-a-kind sorts of oscillations.
Longitudinal types of waves: here oscillation is parallel route of the wave.
The maximum charge stored in the capacitor is,
Q = CE ------(1)
i = 0
At t = t/4, the left part of the plate C has charge q = 0 and therefore, the current flowing through it is clockwise.
i = clockwise
At t = t/2, the left part of the plate C has charge q = -9max and therefore, the current flowing through it is zero.
i = 0
At t = 3t/4, the left part of the plate C has charge q = 0 and therefore, the current flowing through it is counter clockwise
i = counter clockwise
At t = 0, the left part of the plate C has charge q = max and therefore, the current flowing through it is zero.
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