A car moving at 60 mph (27 m/s) encounters a resistive air frictional force of 200 Newtons. How much power must the engine generate to maintain this speed? If the engine is only 40% efficient, how much power is wasted in heat losses?

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?