The electric field in the dielectric between the plates of a capacitor is E. What is the charge density on the plates?
A. E·V
B. 
C. 
D. 
E. 
E.
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An ideal spring with a spring constant (force constant) of 22N/m is stretched from equilibrium to 2.9 m. How much work is done in the process?
A) 186 J B) 47 J C) 121 J D) 93 J
The largest and deepest impact basin found on Mars is:
A) Olympus.
B) Caloris.
C) Hellas.
D) Tharsis.
E) Meridani.
An artillery shell is fired with an initial velocity of 300 m/s at 55.0° above the horizontal. It explodes on a mountainside 42.0 s after firing. If x is horizontal and y vertical, find the (x, y) coordinates where the shell explodes
The tension in a string from which a 4.0-kg object is suspended in an elevator is equal to 44 N. What is the acceleration of the elevator?
a. 11 m/s2 upward b. 1.2 m/s2 upward c. 1.2 m/s2 downward d. 10 m/s2 upward e. 2.4 m/s2 downward