Consider a situation where you exert a force F on a crate of mass m, moving it at a speed v a distance d across a floor in a time interval t. The quantity mv is
a. the kinetic energy of the crate
b. the potential energy of the crate
c. the linear momentum of the crate
d. the work you do on the crate
e. the power you supply to the crate
C
You might also like to view...
The main source of energy for a star as it grows in size to become a red giant is ________
A) hydrogen fusion in a shell surrounding the central core B) gravitational contraction C) helium fusion in the central core D) hydrogen fusion in the central core
The poorest absorber of water is
A) sand and gravel. B) clay. C) rocky surfaces covered by a soil layer. D) rocky surfaces with no soil layer.
Which is more dangerous, touching a faulty 110-volt light fixture, or a Van de Graaff generator charged to 100,000 volts?
A) touching the light fixture B) touching the generator C) touching both are about equally dangerous.
In a spaceship with an acceleration more than g far from gravitational influences, with the effort it takes on Earth to do 20 pushups, you could comfortably do
A) less than 20 pushups. B) 20 pushups. C) more than 20 pushups.