I. The radiator has air trapped in it. The specific heat capacity of water is 4200 J/kg°C.
The specific heat capacity of air is a third of water.
Calculate the specific heat capacity of air.

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?