Impulse involves the time that a force acts, whereas work involves the
A) distance that a force acts.
B) time and distance that a force acts.
C) acceleration that a force produces.
Correct Answer:
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Q61: A hydraulic jack is used to lift
Q62: A moving object has
A)speed.
B)velocity.
C)momentum.
D)energy.
E)all of these
Q63: A jack system will increase the potential
Q64: A machine that promises more energy output
Q65: A miracle car with a 100% efficient
Q67: A primary difference between momentum and kinetic
Q68: Solar power is commonly used to produce
A)heat.
B)electricity.
C)both
Q69: Earth's primary energy source is
A)the Sun.
B)fossil fuel.
C)electricity.
D)geothermal.
Q70: A hydraulic press has its input piston
Q71: If an all-electric car has kinetic energy,
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