Part 1 A merry-go-round rotates at the rate of

0.35 rev/s with an 86 kg man standing at

a point 2.5 m from the axis of rotation.

What is the new angular speed when the

man walks to a point 0 m from the center?

Consider the merry-go-round is a solid 50 kg

cylinder of radius of 2.5 m.

Answer in units of rad/s

Part 2

What is the change in kinetic energy due to

this movement?

Answer in units of J.

The velocity of a curling stone is due east. what will be the direction of the momentum of the curling stone as it moves?

Distinguish between linear momentum and angular momentum

Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?