A team of movers are unloading a truck. One of the movers stays in the truck and places the boxes on a ramp, so they slide down to the other members of the team. One box has a mass of 34.9 kg. The mover places the box on the ramp, which is 24.7° below horizontal. If the coefficient of friction between the box and the ramp is 0.211, how quickly will the box accelerate down the ramp? please explain

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?

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.