When a current flows through a metal wire, the moving charges are A. both protons and electrons. B. only electrons. C. negative metal ions. D. positive metal ions. E. only protons.

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 is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass

What are the dimensions of the cross section that passes through the points a, f, g, and d?