Suppose you drop a clock toward a black hole. As you look at the clock from a high orbit, what will you notice?
A) Time on the clock will run slower as it approaches the black hole, and light from the clock will be increasingly redshifted.
B) Time on the clock will run faster as it approaches the black hole, and light from the clock will be increasingly blueshifted.
C) The clock will fall toward the black hole at a steady rate, so that you'll see it plunge through the event horizon within just a few minutes.
D) The clock will fall faster and faster, reaching the speed of light as it crosses the event horizon.
A) Time on the clock will run slower as it approaches the black hole, and light from the clock will be increasingly redshifted.
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Metric system: How many nanoseconds does it take for a computer to perform one calculation if it performs 6.7 × 107 calculations per second?
A. 15 ns B. 67 ns C. 11 ns D. 65 ns
A quantity that measures the opposition to the flow of charge is
a. voltage. b. current. c. resistance. d. electric field. e. critical temperature.
Longitude can be defined as the angular measurement, in degrees, east or west of the ______________ meridian
Fill in the blank(s) with correct word
This curve shows the distribution of atomic speeds calculated from an experiment in which particles of gas are projected through an apparatus as shown on page 217 of your textbook. How would the distribution of speeds change if the temperature of the gas were increased?
a. The shape of the distribution would remain qualitatively the same, but would shift to the right. b. Same as answer a., except that the shift is to the left. c. The distribution is not affected by temperature. d. The peak gets higher without shifting over while the height of other parts of the curve decreases. e. The peak gets lower without shifting over while the height of other parts of the curve increases.