Please answer each question with step by step answers so I understand the solutions. Thanks!

1. A space probe is in deep space far beyond the edge of the solar system when it uses up all its nuclear fuel. What is true?
(a) The space probe will immediatly come to a stop
(b) The space probe will very slowly come to a stop
(c) The space probe will continue moving at the same speed
(d) The space probe will speed up

2. A rocket explodes in mid-air. Which is true during the explosion?
(a) Only mechanical energy is conserved
(b) Only momentum is conserved
(c) Both mechanical energy and momentum are conserved
(d) Neither mechanical energy nor momentum are conserved

3. A girl of mass M is on a turning Ferris wheel of radius R. She moves at constant speed v. What is the magnitude of the change of her momentum between when she is at the top and bottom of the Ferris wheel.
(a) 0
(b) Mv
(c) 2Mv
(d) MgR
(e) 2MgR

(FOR DIAGRAM PLEASE SEE ATTACHMENT)

4. A sheet of copper of uniform thickness is shaped like a triangle with a hole cut out of one corner. Mark the approximate location of the center of the mass.

When the n value of an electron shell is equal to 5, the allowed values for the angular momentum quantum number are 0 to n-1. What is the subshell level label ...

Conservation of momentum and energy, rotation. ... Please see the attachment. First problem is based on conservation of linear momentum, work and energy. ...

Angular momentum. ... c)What is the angular momentum L_cm of the system before the collision, with respect to the center of mass of the final system? ...