A ball was dropped and had a mass of. 2 kg and was falling with a force of 2 N, what was its acceleration?

What would happen to the seasons if the Earth's tilt was only 10 degrees and why? What about 50 degrees and why?

Describe rotational motion

Water flows over a section of Niagara Falls at a rate of 2.4 * 106 kg/s and falls 67 m. What is the power wasted by the waterfall? The acceleration due to gravity is 9.8 m/s 2. Answer in units of W.

A certain radio wave has a frequency of 2.0 x 10^6 Hz. What is its wavelength?

A railroad freight car with a mass of 29,000 kg is moving at 2.2 m/s when it runs into another car with a mass of 30,000 kg the second car is at rest the cars locked together what is the final velocity

F an electron fell to a lower orbit or energy level, energy would be A. created. B. emitted. C. absorbed. D. transferred.

Which is the correct order from the closest to the sun to the farthest away from the sun? A. terrestrial planets, asteroid belt, gas planets, Kuiper belt B. gas planets, asteroid belt, terrestrial planets, Kuiper belt C.

Ethylene (C2H4) reacts with oxygen gas to produce carbon dioxide and water. 45.0 grams of ethylene reacts, how many grams of carbon dioxide gas will be produced?

What causes ice to melt and water to boil

A block of mass 3.5 kg slides down a frictionless inclined plane of length 6.4 m that makes an angle of 30 degrees with the horizontal. if the block is released from rest at the top of the incline, what is its speed at the bottom