A 65 kg college student stands on an analog bathroom scale inside an elevator car. State the scale
measurement when the elevator. show all work:
a. moves at a constant speed upward.
b. moves at a constant speed downward.
c. accelerates upward at a rate of 3.1 m/s2.
d. accelerates downward at a rate of 3.1 m/s_.

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

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) .

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?