If you place a ball on the floor then push it gently to one side, observe the motion of the ball as it rolls down the floor. a. What makes the ball stop rolling after sometime?

b. What are the forces that act on the ball?

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created

Which model displays the change in a gas when the temperature of the gaseous system decreases?