Radiation of a single frequency reaches the upper atmosphere of the earth with an intensity of 1350 W/m2. What is the maximum value of the electric field associated with this radiation?
(c = 3.00 × 108 m/s, ?0 = 4? × 10-7 T ? m/A, ?0 = 8.85 × 10-12 C2/N ? m2)
A) 675.0 V/m
B) 1604 V/m
C) 1400 V/m
D) 1350 V/m
E) 1010 V/m
E
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Compared to the planets in our own solar system, exoplanets have
A) a much narrow range of composition B) a much wider range of compositions C) an almost identical range of compositions D) completely different compositions
An object transported from Earth's surface to the surface of the Moon has
a. the same mass, but different weight. b. the same weight, but different mass. c. the same mass and the same weight. d. different mass and different weight. e. none of these.
______________ is the largest known asteroid
Fill in the blank(s) with correct word
A 100-m long transmission cable is suspended between two towers. If the mass density is 2.01 kg/m and the tension in the cable is 3.00 × 10^4 N, what is the speed of transverse waves on the cable?
a. 60 m/s b. 122 m/s c. 244 m/s d. 310 m/s e. 1 500 m/s