What index of refraction halves the wavelength that light has in a vacuum?
A. 1.33
B. 1.50
C. 1.41
D. 2.00
E. 5.00
D. 2.00
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A rock is projected upward from the surface of the Moon, at time t = 0 s, with an upward velocity of 30.0 m/s. The acceleration due to gravity at the surface of the Moon is 1.62 m/s2, and the Moon has no atmosphere
The height of the rock when it is descending with a speed of 20.0 m/s is closest to A) 115 m. B) 125 m. C) 135 m. D) 145 m. E) 154 m.
According to the Schrödinger equation, the probability of finding a hydrogen atom's ground-state electron 0.053 nm from the proton is
a. zero. b. high, but not 100%. c. low, but not zero. d. 100%.
On a warm 30.°C spring day, you are watching Richard take a buzzer and twirl it horizontally around on the end of a 2.0 meter long string. Why do you hear the buzzer tone Vary from 718. Hz to 772. Hz? What is the angular speed?
What will be an ideal response?
A child sits on a merry-go-round, 1.5 meters from the center. The merry-go-round is turning at a constant rate, and the child is observed to have a radial acceleration of 2.3 m/s2
How long does it take for the merry-go-round to make one revolution?