Which of these colors of light has photons of greatest energy?
a. Red
b. Orange
c. Green
d. Yellow
c
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Long wavelength visible light
a. will have a greater energy than short wavelength visible light. b. will have a speed that is faster than short wavelength light. c. has a higher frequency than short wavelength visible light. d. will appear blue in color to the average human eye. e. will appear red in color to the average human eye.
A circus diver drops from a high pole into water far below. When he is half-way down
A) his potential energy is halved. B) he has gained an amount of kinetic energy equal to half his initial potential energy. C) his kinetic and potential energies are equal. D) all of the above E) none of the above
A natural gas pipeline with a diameter 0.250 m delivers 1.55 cubic meters of gas per second. What is the flow speed of the gas in the pipeline?
Determine the rms voltage drop across the inductor in the circuit
a.
11 V
b.
27.5 V
c.
33 V
d.
38.5 V
e.
30.5 V