A steel sphere with a radius of 2.0 m falls off a ship and sinks to a depth where the pressure is 15 MN/m2. The bulk modulus for steel is 1.6×1011 N/m2. What is the change in the radius of the sphere?
A)
0.021 mm
B)
4.2 mm
C)
0.42 mm
D)
0.19 mm
E)
0.063 mm
E
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Light from a 560-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56) at an angle of 30°. What is the angle of reflection from the surface?
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At approximately what time does the third quarter Moon rise?
a) 9pm b) 6pm c) noon d) 6am e) midnight