How much is required to accelerate a 5kg mass at 20 m/s2

Molecules at room temperature move freely. What happens to the molecules when heat is removed until it freezes? Molecules group together Molecules slow down and contract Molecules speed up and expand Molecules move freely

A child weighing 150 newtons is sitting in a swing. the swing is supported by two ropes, one on each side. what is the tension in one of the ropes?

How to measure the speed of sound in air?

What is the equation to find wavelength of red light with a frequency of 4 x 10^14

Sound waves cannot carry energy through. A water B air C a mirror D a vacuum

How long will it take to travel 200,000 m traveling 100 m/s?

How does the planet Venus look to a person standing on the Earth? A. Venus looks like a small moon. B. Venus is bright like the Sun. C. Venus looks like a star. D. Venus cannot be seen from Earth.

Which statement is a description of Charles's law? The temperature and volume of a gas are directly proportional when pressure is constant. The temperature and volume of a gas are inversely proportional when pressure is constant.

Which boundary is likely to form mountains why?

What is the conversion of celcius to kelvin?