In days gone by, people used oxen to pull giant stone wheels around a track to grind wheat into flour. The wheels were extremely heavy, and had a radius of 2.0 meters. The wheel would rotate 8.5 times each minute (8.5 RPM) and the ox would be worked for 4 hours before being allowed to rest and replaced with another oxen.

a. Find the angular velocity in radians/second b. Find the tangential velocity

c. Find how far the heavy wheel traveled in 4 hours

What are the phases shown in a and d called?

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.