The electric field in a given location points along the –x axis. This means that
A. At that location, the potential is positive
B. At that location, the potential decreases as one moves toward negative values of x.
C. At that location, the potential decreases as one moves toward positive values of x.
D. At that location, the potential is negative
B. At that location, the potential decreases as one moves toward negative values of x.
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General Questions: A golf club hits a golf ball with a force of 2400 N, sending the ball into the air. The force exerted on the club by the ball must be less than 2400 N or else the ball would not have moved forward.
A. True B. False C. The answer depends on whether the golfer followed through with the swing.
The temperature coefficient of resistivity for a "perfect" ohmic material would be:
a. positive and constant. b. zero. c. negative. d. positive and uniformly increasing.
When we analyze situations that involve the kinetic and potential energies of falling objects, we identify the system as e?
1.only the Earth. 2.only the falling object. 3.both the earth and the falling object. 4.none of these.
As a projectile moves its speed stays constant while its direction changes
Indicate whether the statement is true or false