________ is the color of the lowest frequency visible light
Fill in the blank(s) with correct word
Red
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Which of the following expressions is correct for the transmitted intensity of an unpolarized beam of light with an intensity Ii passing through a polarizer?
A) It = Ii B) It = (1/2 ) Ii C) It = (1/4 ) Ii D) It = 2 Ii E) It = 4 Ii
An irreversible engine operating between the temperatures of 550 K and 300 K extracts 1200 J of heat from the hot reservoir and produces 450 J of work. How much entropy is created in the process?
A) 0.32 J/K B) 0.68 J/K C) 0.44 J/K D) 0.73 J/K E) 0 J/K
Kepler's 3rd law says T2 /r3 = K. What does the constant K depend upon?
A) period B) frequency C) size D) mass E) temperature
The drive chain in a bicycle is applying a torque of 0.850 N ? m to the wheel of the bicycle. You can treat the wheel as a thin uniform hoop (or ring) with a mass of 0.750 kg and a radius of 33.0 cm. What is the angular acceleration of the wheel?
A) 10.4 rad/s2 B) 20.8 rad/s2 C) 5.20 rad/s2 D) 3.43 rad/s2 E) 1.06 rad/s2