Which statement is always correct when applied to a charge distribution located in a finite region of space?
a. Electric potential is always zero at infinity.
b. Electric potential is always zero at the origin.
c. Electric potential is always zero at a boundary surface to a charge distribution.
d. Electric potential is always infinite at a boundary surface to a charge distribution.
e. The location where electric potential is zero may be chosen arbitrarily.
e
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Conservation of Momentum: A dinner plate falls vertically to the floor and breaks up into three pieces, which slide horizontally along the floor. Immediately after the impact, a 200-g piece moves along the +x-axis with a speed of 2.00 m/s, a 235-g piece moves along the +y-axis with a speed of 1.50 m/s. The third piece has a mass of 100 g. What is the speed of the third piece?
A. 2.51 m/s B. 2.57 m/s C. 3.50 m/s D. 5.33 m/s E. 6.83 m/s
The Tully-Fisher relation allows us to determine the distance to the most distant galaxies
Indicate whether the statement is true or false
The orientation of an image seen projected on a screen by a single lens is always __________
Fill in the blank(s) with correct word
Consider the motion of a 1.00 kg particle that moves with potential energy given by U(x) = -(2.0 J?m)/x + (4.0 J?m2)/x2. Suppose the particle is moving with a speed of 3.00 cm/s when it is located at x = 3.00 m
At which other position would the speed be equal to 3.00 cm/s? A) 3.00 m B) 6.00 m C) 4.50 m D) 5.00 m E) The only position at which the speed is 3.00 cm/s is at x = 3.00 m.