You drop a 6.0x10^-2 kg ball from height of 1.0m above hard flat surface. ball strikes surface and energy decreases by 0.14j, then bounces upward. how much kinetic energy does the ball have just after it bounces off the flat surface?

After a big snowfall, you take your favorite rocket-powered sled out to a wide field. the field is 195 m across, and you know that your sled accelerates at a rate of 3.65 m/s2 when the rocket is on. how much time will it take the sled to cross the field starting from rest, assuming the rocket is on the whole time?

Avalue that describes how heavy an object is and is related to the force of gravity is

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays