A 2000 kg car moving on a level road has a pushing force of 4500 Newtons to the right and a frictional force of 700 N acting upon it to the left. The acceleration of the car will be:

2.6 m/s2 to the right

1.9 m/s2 to the right

2.25 m/s2 to the right

700 N to the right

0.526 m/s to the left

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) .

Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.

Which type of wave can travel without a medium