In a block and tackle system each pulley that you add will all the force to be . a. increased
b. decreased

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?

What happens when a rubber rod is rubbed with a piece of fur?

Why is the use of carbon-14 limited