A physical therapy exercise has a person shaking a 5.00 kg weight up and down rapidly. If the barbell is moving at 4.50 m/s, what is the magnitude of the force required to stop it in 0.333 seconds?

Excuse ! extra points plus ! super desperate ! the position of an object does not move relative to a reference point. relative to the reference point the object _. a.) is not moving. b.) is moving.

If the textbook weighs 19.6 newtons on venus, what is the strength of gravity on venus?

Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.