A 2-kg crate is resting on the floor. How much work is required to move it at a constant speed to move 3-m along the floor? *

Acar travels 40m in 8 seconds find the car speed

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?

Does heating a metal wire increase or decrease its electrical resistance? why?