Galaxies contain at most one supermassive black hole
Indicate whether the statement is true or false
FALSE
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The total mass of the Kuiper belt is greater than that of the asteroid belt
Indicate whether the statement is true or false
A charge Q is uniformly distributed along the x axis from x = a to x = b. If Q = 45 nC, a = ?3.0 m, and b = 2.0 m, what is the electric potential (relative to zero at infinity) at the point, x = 8.0 m, on the x axis?
A. 71 V B. 60 V C. 49 V D. 82 V E. 150 V
The square of the wave function of a particle, |?(x)|2, gives the probability of finding the particle at the point x
A) True B) False
A 60-kg person rides down an icy hill of 20° slope while standing on a 3.0-kg flat-bottomed bathroom scale. Assume there is no frictional force between the bottom of the scale and the hill. The static friction force the scale exerts on the person is
a. 0 N. b. 201 N. c. 211 N. d. 553 N. e. 580 N.