What is the maximum radiation pressure exerted by sunlight in space (S = 1350 W/m2) on a flat black surface?
A. 2.25 × 10?5 Pa
B. 0.06 Pa
C. 7 × 10?4 Pa
D. 4.5 × 10?6 Pa
E. 9.0 × 10?6 Pa
Answer: D
You might also like to view...
Capacitors in Combination: You have three capacitors with capacitances of 4.00 ?F, 7.00 ?F, and 9.00 ?F. What is the equivalent capacitance if they are connected (a) in series and (b) in parallel?
What will be an ideal response?
Recent measurements of the expansion rate of the universe reveal that the expansion rate of the universe is doing something astronomers did not expect. What is that?
A) The measurements show that the universe may not be expanding at all. B) The measurements show that the universe may be shrinking rather than expanding. C) The measurements show that the expansion is accelerating, rather than slowing under the influence of gravity. D) The measurements indicate that the universe is at least 30 billion years old, meaning that more than 10 billion years passed between the Big Bang and the formation of the first stars and galaxies. E) The data show that the expansion rate varies widely in different parts of the universe.
A cheetah can maintain its maximum speed of 100 km/hr for 35.0 seconds. What minimum distance must a gazelle running 80.0 km/hr be ahead of the cheetah to escape?
a. 194 m c. 70.0 m b. 167 m d. 125 m
Three identical bar magnets, each 2 cm long, are placed in a straight line on a frictionless surface with their ends equally spaced with 2 cm between ends. They are constrained so they cannot rotate, but they can slide along the straight line. The left magnet has its north pole nearest the north pole of the middle magnet, and the right magnet has its south pole toward the middle magnet's south pole. Once they are in place and released from rest, which of the following best describes the motion of the magnets?
a. The end magnets will move away from the center magnet. b. The magnets will not move since they are equally spaced. c. The magnets will snap together. d. None of the above would happen.