Without the force of friction, people would not be able to walk.
The energy derived from the digestion of food is __________.
It is impossible to destroy __________.
An object with a mass of 90 grams, moving at a constant velocity of 6 meters per second, has __________.
Which of the following statements about air is TRUE?
Human movement involves the complex interplay of many body systems.
Friction is a force in which two objects __________.
The aerobic system starts producing energy during prolonged periods of light to moderate exercise.
According to Newton's third law of motion, if you push against a wall, the wall will __________.
If two objects of unequal mass collide, both objects will continue to move in the direction of __________.
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