An object is moving across a surface, but it does not gain or lose speed. Which best describes the object's force? O The net force is positive.
O The net force is zero.
The positive force is greater than the negative force.
O The negative force is greater than the positive force.
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The net force is positive

Explanation:

This would mean that altogether, the force would cause the object to always be going the same way, and if it is not gaining or losing speed, we can say the force has not changed and that the object has reached terminal velocity. It is not correct to say that the positive is greater than the negative as friction also causes some type of effect and it is neither positive nor negative

d) the number of neutrons plus the number of protons

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.