PHYSICS MIDDLE SCHOOL

HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!When a rubberband is stretched all the way back, it is an example of which type of energy?

Question 7 options:

Gravitational potential energy


Chemical potential energy


elastic potential energy


Mass kinetic energy

Answers

Answer 1
Answer: It is an example of "Elastic Potential Energy"

In short, Your Answer would be Option C

Hope this helps!

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How was the speed of light determined

Answers

Answer:

Speed of light = 3 * 10 ^8 m / s. Speed is related to the distance and time and so its unit is in meters and seconds. The speed of light value mentioned above is the value calculated in vacuum or air with the help of lasers.

But when it comes to water, refractive index has to be taken into account.The speed of light is faster in vacuum than other mediums.
Presently, the speed of light in a vacuum is defined to be exactly 299,792,458 m/s (approximately 186,282 miles per second). . An early experiment to measure the speed of light was conducted by Ole Romer, a Danish physicist, in 1676. Using a telescope, Ole observed the motions of Jupiter and one of its moons, Io

Explain why increasing the temperature of a gas in a closed, rigid container causes the pressure in the container to increase.

Answers

The atoms/ particles that are in the gas have gotten energy from the heat, because of that, they zoom around the container, putting pressure on it :) hope it helps :)

How are electromagnets made and how do they work?

Answers

Electromagnets

When an electric current flows in a wire, it creates a magnetic field around the wire. This effect can be used to make an electromagnet. A simple electromagnet comprises a length of wire turned into a coil and connected to a battery or power supply.

How many atoms are in Chloride

Answers

itz dedpooooolll

2 there is sodium and chlorine!

hope this helps! brainliest would help me tho.

Which change of state do particles in a material become farther apart?

Answers

Particles become farther apart from each other in the change of state between liquid and gas.
Hope that helped =)

18. In an airplane flying at a constant speed, theforce pushing the airplane forward is exerted
by the engine and is equal to the opposite
force of air resistance. Describe how these
forces compare when the plane speeds up
and slows down. In which direction is the
net force on the airplane in each case?

Answers

Explanation:

In an airplane flying a constant speed, the force exerted by the engines pushing the plane forward is equal to the opposite force exerted by air resistance.
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Decision making is part of
A light bulb converts electrical energy into light energy and also some thermal energy. The amount of electrical energy is 50 Joules before the conversions.