A ball is thrown downward from the top of a 31.0 m tower with an initial speed of 10.0 m/s. Assuming negligible air resistance, what is the speed of the ball just before hitting the ground

In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

What’s #16 asking and how do i solve it?