If sunlight of color B is scattered through an angle 16 times greater than sunlight of color A, then the wavelength of color B is

A) twice that of color A.
B) 1/2 that of color A.
C) 16 times that of color A.
D) 1/16 that of color A.
E) 1/4 that of color A.


B

Physics & Space Science

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In the Ptolemaic model, retrograde motion is due to

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A -4.0-?C charge is situated at the origin of an xy-coordinate system. Another -4.0 ?C charge is at y = 4.0 m. What is the electric potential at a point x = 3.0 m due to these two charges?

A) -3600 V B) 3600 V C) -4800 V D) 4800 V E) 0 V

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Work: A child does 350 J of work while pulling a box from the ground up to his tree house at a steady speed with a light rope. The tree house is 4.0 m above the ground. What is the mass of the box?

A. 8.9 kg B. 5.3 kg C. 6.7 kg D. 8.0 kg

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A quantity that is measured in ohms is

a. voltage. b. current. c. resistance. d. electric field. e. critical temperature.

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