Doubling the radius of a sphere results in increasing its volume by a factor of
a. 2.
b. 4.
c. 8.
d. 8?.
c
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Series Resonance: In a RLC circuit, the values of the inductance and capacitance are both halved. As a result of this change, the resonance frequency of the circuit is
A. the same as before. B. reduced to one-half the original value. C. reduced to one-fourth the original value. D. twice the original value. E. four times the original value.
For a body emitting blackbody radiation, the total power emitted is proportional to the 4th power of the body's absolute temperature: (T in kelvins) and the wavelength of the emitted EM radiation that has the highest intensity is inversely proportional to the body's absolute temperature according to: ( in meters, T in kelvins) Assume an object is emitting blackbody radiation. If the Kelvin
temperature of an object is doubled, the amount of radiant energy emitted each second is ____________ the original amount. a. 1/16th b. half c. the same as d. 2 times e. 16 times
Sonic Booms: The half-angle of the conical shock wave produced by a supersonic aircraft is 60°. What is the ratio of the speed of the aircraft to the speed of sound?
A. 0.87 B. 1.2 C. 1.7 D. 2.0
The idea that we live in a universe (literally, "one story"), in which the same law of gravity applies both on Earth and in space, was established through the work of
A) Newton. B) Copernicus. C) Kepler. D) Galileo.