A manufacturer supplies plastic cups that are placed under the legs of the chair. The manufacturer's claim is that there will be no marks of chair due to pushing or pulling on the floor.
Who is a manufacturer?A manufacturer is a person who converts his idea of developing and constructing any item using some set of machines.
A manufacturer supplies plastic cups that are placed under the legs of the chair.
When there is a relative motion between two objects, friction force causes the opposition to this motion. Between chair and floor, there will be high magnitude of force. But if we insert plastic cups in the legs of chair, then the friction between cup and floor will be less. This keeps the floor protected form any scratches.
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Gina is burning different fuels label the diagram
The answer for the missing labeling as (i) and (ii) will be (i)thermometer and (ii)condenser.
What is a burner?A burner is a device intended to guarantee that the flame is stabilized.
By creating a proper flow field to cause the initial temperature rise, a The fuel/air combination is heated from within the flame to the ignition temperature.
When the flame or heat is created in fuel-burning or heat-generating equipment.
Wood, coal, kerosene, LPG, petrol, and diesel are a few of the often utilized fuels. In order to cook, heat, power vehicles, and create electricity, we utilize fuels.
The barrel, collar, air holes, gas intake, gas valve, and base are the different pieces of a Bunsen burner. Each component is essential to the process of creating a flame.
Hence, the answers for the missing labeling will be (i) thermometer and (ii) condenser.
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If the inside of a container has a surface area of 20cm², what will be the pressure on each square inch of the container if 117.6kg of force are applied to the container?
Answer:
Explanation:
given :-
force applied = 117.6N
Area = 20 m^2
Pressure =?
solution:-
Pressure = Force / Area
= 117.6 N / 20 m^2
= 5.88 Pascals
Hope it helps :D!
Explanation:
What is the atomicWhat is the atomic mass of neon? Give your answer to the nearest tenth. number of neon?
Answer:
atomic mass = 20.2 amu
atomic number = 10
Explanation:
The atomic mass is the average mass of an atom of a particular element. For neon, the atomic mass is about 20.180 amu. Rounded to the nearest tenth, the atomic mass is 20.2 amu.
The atomic number is the number of protons in the nucleus of a particular element. For neon, the atomic number is 10.
Both of these values can usually be found on the periodic table under neon (Ne).
Complete the following hypothesis the pressure lncrease as
Temperature is increased the pressure also increases due to fast movement of molecules because of more energy.
How temperature is related to pressure?The temperature of the gas is directly proportional to the pressure. Faster moving particles will collide with the walls of the container that put force on the wall which leads to increase in pressure.
So we can conclude that temperature is increased the pressure also increases due to fast movement of molecules because of more energy.
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A stunt pilot in an air show performs a loop-the-loop in a vertical circle of radius 3.80 103 m. During this performance the pilot whose weight is 623 N, maintains a constant speed of 2.10 102 m/s. (a) When the pilot is at the highest point of the loop determine his apparent weight in N. N (b) At what speed, in m/s, will the pilot experience weightlessness
The apparent weight of the pilot would be 619.48 N and the speed he would experience at weightlessness is 192. 97 m/s
What is apparent weight?
Apparent weight is a property of object that co-relates to the heaviness of the object.
It differs from the weight of an object as a result of the in-balance between the force acting on the object and an equal but opposite force
How to calculate the apparent weight
Formula:
Apparent weight = Real weight (mg) - m v∧2 ÷ r
Where m = mass
g = acceleration due to gravity = 9.8 m/s²
v = constant velocity = 2. 10 × 10∧2 m/s
r = radius = 3.80 × 10∧3 m
Note that weight = mg
m = weight ÷ g = 623 ÷ 9.8 = 63. 57 kg
a. Apparent wieight = 623 - (63. 57 × 2.10 × 10∧2 × 2.10 × 10∧2) ÷ 3.80 × 10∧3)
= 623 - (63.57 × 210) ÷ 3800
= 623 - 13377 ÷ 3800
= 623 - 3. 52
= 619.48 N
b. At weightless, weight = 0
Speed, V = √g× r = √ 9.8 × 3800 = √37,240 = 192. 97 m/s
Hence, The apparent weight of the pilot would be 619.48 N and the speed he would experience at weightlessness is 192. 97 m/s
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an object with a density of 250 kg/m3 floats on water. what portion of the object is submerged?
The portion of the object submerged in water is determined as 0.25.
Fraction of the object submerged in waterThe fraction of the object submerged in water is calculated as follows;
S.G = (density of object) / (density of water)
where;
S.G is specific gravityS.G = (250 kgm⁻³) / (1000 kgm⁻³)
S.G = 0.25 = ¹/₄
Thus, the portion of the object submerged in water is determined as 0.25.
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According to the law of conservation of energy, which statement must be true?
A. The total energy of a system can increase only if energy enters the system.
B. A system cannot take in additional matter.
C. The total energy in a system can only decrease over time.
D. Energy that is transferred cannot be transformed into a different type of energy.
Answer:
B. A system cannot take in additional matter.
Explanation: The total amount of energy in the universe remains constant, it can merely change from one form to another.
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What's manifestation
Answer:
Explanation:
the action or fact of showing an abstract idea.
(◑.◑)!
Manifestation (or manifesting) refers to
various pseudoscientific self-help
strategies intended to burning about
a personal goal, primary by focusing
one's thought upon the desired outcome.
The techniques are based on the law
of attraction of New Thought spiritually.
While the process involves positive
thinking, or even directing request to
"the universe", it also involves
action-steps on the part of the individual.
Manifestation has been criticised as
having no basis in physical science.
Alison Bernstein, a professor of
translational neuroscience at Michigan
State University said in an interview
with Vice that "You can't magically
make things happen. You can [However]
change the way you react to certain
situations, which sounds to me like
Cognitive Behavioral Therapy". She
want no to assert that "manifestation
is not supported by science.
it is a routine composed of yells and cheers gymnastic skill and dance
Cheer dance is a routine composed of yells and cheers gymnastic skill and dance.
What is cheer dance?Cheer dance or cheerleading is a group activity used to entertain fans at athletic events and inspire louder, more enthusiastic cheering. It combines dancing and acrobatic aspects with shouted phrases.
A never-ending range of diverse stunts, jumps, pyramids, dances, and chants that integrate a variety of different movements can be included in the immensely complex sport of cheerleading. Base, partner, and spotter are the three primary cheerleading roles. These roles are all a part of cheerleading stunts, which pose the greatest risk of harm to participants.
It is a competitive sport and leisure activity made up of a set routine with necessary performance components, much like in gymnastics and dance. Additionally, it hopes to get the crowds to cheer in team sports event.
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Your question is incomplete, but most probably your full question was:
1. It is a routine composed of yells and cheers, gymnastic skills and dance.
A. Contemporary dance
B. Hip-hop dance
C. Street dance
D. Cheer dance
An object is placed 14.0 cm from a diverging lens. If a virtual image appears 10.0 cm from the lens on the
same side as the object, what is the focal length of the lens?
Use lens formula
1/f=1/v-1/u1/f=1/-10-1/141/f=-7-5/701/f=-12/70f=70/-12f=-5.8cmThe focal length of the lens is 5.8 cm.
To find the focal length, the given values are:
Image distance - 10 cm
Object distance - 14 cm
What is focal length and how it was calculated?The distance between the convex lens or a concave mirror and the focal point of a lens or mirror is called the focal length. This is the parallel line which meet at the distance from the lens or mirror.
1/Focal length = 1/Image distance + 1/Object distance ( cm )
1/f = 1/v-1/u
1/f = 1/-10-1/14
1/f = -7-5/70
1/f = -12/70
f = 70/-12
f = -5.8cm
The focal length of the lens is - 5.8 cm.
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Sian wants to measure the number of seconds that it takes for the contents of a beaker to change from clear to purple. which of these tools should she use for this purpose? an electronic balance a stopwatch a barometer a graduated cylinder
Sian wants to count the number of seconds it takes for a beaker's contents to become purple from clear. She should utilize a stopwatch as her instrument for this job.
What is a stopwatch?Watch that, when turned on and off, measures the amount of time that has passed since a specific time.
Sian wants to measure the number of seconds that it takes for the contents of a beaker to change from clear to purple. Stopwatch is the tool she should utilize for this purpose.
Hence, option B is correct.
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Answer: Sian wants to count the number of seconds it takes for a beaker's contents to become purple from clear. She should utilize a stopwatch as her instrument for this job.
option b
Explanation:
Which of the following statements is true about transverse waves?
A: They always have the same frequency.
B: They always have the same velocity.
C: They always have the same wavelengths
D:The particles vibrate in a parrallel direction with respect to the wave motion.
E: The particles vibrate in a perpendicular direction with respect to the wave motion
Answer:
The answer is option E
Explanation:
The particles vibrate in a perpendicular direction with respect to the wave motion
pls help me i really need help
Graphs A, B, C, and D match the numbers 3,4,1, and 2 respectively.
What is the distance?Distance is a numerical representation of the distance between two objects or locations.
The distance can refer to a physical length or an estimate based on other factors in physics or common use. |AB| is a symbol for the distance between two points A and B.
Graph C shows a person leaving home and traveling at a constant speed.
Graph D shows a person leaving home, traveling at a constant speed, stopping for a short time and then returning home.
Graph A shows a person leaving home, traveling to their destination, and immediately returning.
Graph B shows a person leaving home, traveling at a constant speed, stopping for some time, and then continuing the journey away from home.
Hence, the numbers 3, 4, 1, and 2 are matched by graphs A, B, C, and D, respectively.
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Lab: newton's laws of motion assignment: lab report
Newton's motion laws state that if an object is at rest or in movement, it will tend to maintain its basal state.
What are Newton's motion laws?Newton's motion laws are a set of scientific statements aimed at explaining the physical property of movement.
These laws explain why objects in movement tend to maintain the same velocity for a short period of time.
In conclusion, Newton's motion laws state that if an object is at rest or in movement, it will tend to maintain its basal state.
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BRAINLIEST + 19 pts what does a capacitor do in a circuit?
A. it reduces current.
B. It increases voltage
C. It stores and releases charge.
D. it overcomes resistance
answer: c
explanation: it's job is to store and release charge
Answer:
C- It stores and releases charge
Open the attached file. It shows 2 waves (a blue one and an orange one) that are moving through the same medium at the same time. Your challenge is to DRAW the RESULTANT wave and LABEL the areas of interference with CI, DI and/or points of TDI.
The diagram is labelled to DRAW the RESULTANT wave and LABEL the areas of interference with CI, DI and/or points of TDI.
What is refraction?When a light ray falls on the interface of two medium like air and water, then the portion of light is reflected and another portion of the light is refracted into the water medium. The angle of incidence is equal to the angle of reflection but the angle of incidence is larger then the angle of refraction.
Open the attached file. It shows 2 waves (a blue one and an orange one) that are moving through the same medium at the same time.
Thus, the diagram is labelled.
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please help
a piece of wood of mass 40g and uniform cross-sectional area of 2cm^2 floats upright in water. calculate the length of the immersed part of the wood
The length of the immersed part of the wood is 0.2m.
What is density?The density is the ratio of the mass and the volume of the object. It is denoted by ρ.
ρ = mass/Volume = m/V
Volume = Area of cross-section A x height h
Given is a piece of wood of mass 40g =0.04kg and uniform cross-sectional area A= 2cm² =2x10⁻⁴ m² floats upright in water.
The density of water ,ρ = 1000 kg/m³
The density related to length of part immersed is
1000 = 0.04/ (2x10⁻⁴ x h)
h = 0.2m
Thus, the length of the immersed part of the wood is 0.2m.
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How fast would you (70kg) need to run in order to have the same momentum as a car (750kg) driving at 5 km/hr?
From the calculations and the data provided, the speed is obtained as 15 m/s
What is momentum?The term momentum refers to the product of mass and velocity. Given that we can now proceed with the answer.
Since;
p = mv
m = 750kg
v = 5 km/hr or 1.4 m/s
p = 750kg * 1.4 m/s
p = 1050 kgm/s
If the mass of the body is 70kg, the speed is
v = p/m
v = 1050 kgm/s/70 Kg
= 15 m/s
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A swimmer swims 20 m in 40 s. The swimmer's average speed is
------------- m/s.
Explanation:
Average speed=distance/time
=20/40
=0.5m/s
please help me with this
Answer: you got it duDee
Explanation:
What can be described as a technology that uses high-frequency sound waves to create images
Answer:
Ultrasound imaging.
Explanation:
It uses high-frequency sound waves to view inside the body.
According to the graph of displacement vs. time, what is the object's velocity at a displacement of 0.2 meters?
According to the graph of displacement vs. time, the object's velocity is 0.02 m/s
What is displacement?The displacement is the shortest distance travelled by the particle. It is the vector quantity which re[presents both the magnitude and direction.
Velocity is the time rate of change of displacement with time.
Given is the displacement 0.2 m and time taken is 10s. So, the velocity is
v = 0.2/10
v = 0.02 m/s
Thus, the object's velocity is 0.02 m/s
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Ten minutes after you stop exercising, your heart rate should be (2 points)
equal to your Heart Rate Reserve
in your Target Heart Rate Zone
less than 50 beats per minute
less than 100 beats per minute
Ten minutes after you stop exercising, your heart rate should be equal to your heart rate reserve
What is Heart Rate Reserve?
This is defined as the heart rate the body decreases to after an exercise session has been done.
This however varies according to age of individuals and is calculated by finding the difference between the maximum and resting heart rate.]
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a balloon was inflated to a temperature of 32 degrees celsius. as it floated into the sky it reached a temperature of 0 degrees celsius. what is the new volume
Answer:
P V = N R T so
V2 / V1 = T2 / T1 assuming other variables stay constant
V2 = (273 / 305) * V1
V2 = .90 V1
science not has only achievements but also challenges justify with an example
Q2 Alice wants to find the pressure she exerts upon the floor. She measures the length and width of her shoe and multiplies them together to get a rough area. She then doubles the answer. She divides her weight in newtons by the total area she has worked out. a) Why won't her area measurement be very accurate?
Answer:
The area estimate is somewhat inaccurate because the length * width of the shoe will be an inaccurate measurement of the area of the shoe that actually contacts the floor.
Which type of volcanic mountain has wide, gentle slopes?
1) rift
2) shield
3)composite
4) cinder cone
4) An electron in a mercury atom changes from
energy level b to level e. This energy-level
change occurs as the atom.
(1) absorbs a 2.03-eV photon
(2) absorbs a 5.74-eV photon
(3) emits a 2.03-eV photon
(4) emits a 5.74-eV photon
The energy-level change occurs as the atom is absorbs a 2.03-eV photon.
Energy change of the mercury atom
The energy change of the mercury atom is calculated as follows;
Energy emitted by a photon when it falls from level b to energy level e is calculated as follows;
ΔE = -3.71 eV - (-5.74 eV)
ΔE = -3.71 eV + 5.74 eV
ΔE = 2.03 eV
When electron jumps from lower energy level to higher energy level, energy is absorbed, thus, the energy-level change occurs as the atom is absorbs a 2.03-eV photon.
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Action and reaction forces are described by which of Newton’s laws of motion?
first
second
third
fourth
Answer:
third
Explanation:
for every action there is an equal and opposite reaction
example
bouncing ball
ball receives a force from the ground due to collision
that same force causes the ball to bounce off the ground
first law:
inertia
example
stuff in space doesn't move unless its pushed
then it keeps going unless something stops it
second law
force = mass times acceleration
example
harder you push a cart the faster it goes
the less a cart weighs the faster a cart goes
studysmarterus
spacecenterorg
energywavetheory
The electromagnetic waves with the longest wavelength are: *
-microwaves
-gamma rays
-radio waves
-visible light
Answer:
Radio waves
Explanation:
I hope it helps u dear^_^
[tex] \huge \tt \color{pink}{A}\color{blue}{n}\color{red}{s}\color{green}{w}\color{grey}{e}\color{purple}{r }[/tex]
electromagnetic waves :- electromagnetic radiation▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂
[tex]\large\underline{ \boxed{ \sf{✰\:Radio\:waves }}}[/tex]
▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂
The electromagnetic waves with the longest wavelength are radio waves .
Example:- television, mobile phones and radios.========================
Hope it helps!