PLEASE HELP ASAP A ball is rolling on a flat, frictionless surface. What will happen to the ball if no unbalanced force acts on the ball? A.
The ball will roll faster and faster.

B.
The ball will begin to roll in the opposite direction.

C.
The ball will begin to roll faster for a time and then begin to roll slower.

D.
The ball will continue to roll in the same direction and at the same speed.

The variables for this experiment include mass, volume and the materials in the various balls, as well as their densities. in part iii, you will be investigating the questionable baseball. use the drop-down menus to complete the sentences and identify the independent and dependent variables. in part iii, the independent variable, the one that is intentionally manipulated, is . in part iii, the dependent variable, the one that you measure the response in, is

Most energy in an ecosystem comes originally from_

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?