The position of a 0.64-kg mass undergoing simple harmonic motion is given by x = (0.160 m) cos (pt/8). What is its period of oscillation?
a. 100 s
c. 16 s
b. 32 s
d. 8.0 s
C
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The ________ of a star is a measure of the total energy radiated by the star in one second
a. color b. apparent visual magnitude c. luminosity class d. spectral type e. luminosity
How many octaves exist between 20 hertz and 2560 hertz?
A) 5 B) 6 C) 7 D) 8 E) 9
A juggler throws two balls up to the same height so that they pass each other halfway up when A is rising and B is descending. Ignore air resistance and buoyant forces. Which statement is true of the two balls at that point?
A. There is an residual upward force from the hand on each ball. B. There is a greater residual force from the hand on A than there is on B. C. Only gravity acts on B but there is an additional residual force from the hand on A. D. There is an additional downwards force besides gravity on each ball. E. The only force acting on each ball is the gravitational force.
Which process cannot occur if only one photon is involved?
a. Compton effect b. pair production c. the photoelectric effect d. x-ray production