7. if you are sitting in a bus that is traveling along a straight level roada 100 km/hr., you are traveling at 100
km/hr too. (a) if you hold an apple over your head, how fast is it moving relative to the road? (b) relative to
you? (c) if you drop the apple, does it still have the same horizontal motion? explain.

Which two particles are found in the center of an atom

What is the coefficient of kinetic friction μk between the block and the tabletop?

Steelhead trout migrate up stream to spawn.occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b.leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?