Aload of bricks is lifted to the second floor of a building. how do work and power relate to this job?
a. the longer the job takes, the more work is done.
b. the faster the job is done, the greater the power.
c. the greater the power applied, the more work is done.
d. the less work is done, the more power is needed.

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

=force × distance a. work b. velocity c. pressure d. momentum

The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm