You and your sister are riding skateboards side by side at the same speed. You are holding one end of a rope and she is holding the
other. Assume there is no friction between the wheels and the
ground. If your sister lets go of the rope, how does your speed
change?

a. it reduces by half
b. it stays the same
c. it doubles

PLEASE ANSWER

Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .

This is the substance(s) formed in a chemical reaction.