The Sun appears to rotate only because Earth is revolving about the Sun
a. True
b. False
Indicate whether the statement is true or false
False
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The velocity of shear waves in a long brass rod is 2,033 m/s. If the density of brass is 
then what is the shear modulus of brass?
A. 
B. 
C. 
D. 
E. 
A dump truck has a loosely tied canvas over its empty bed, which is full of still air. As the truck speeds down the highway, the canvas will tend to
A. get pushed onto the load. B. billow outward from the load. C. lay limply in a jumbled pile. D. smooth out in a level, horizontal plane.
What scattering angle in the Compton effect produces the minimum change in frequency?
A) 45° B) 90° C) 0° D) 180° E) 270°
Which of the following explains why the stars visible in our sky just after sunset are different from those visible just before sunrise?
A) Earth rotates once each day. B) Earth orbits the Sun once each year. C) The direction of Earth's axis in space precesses with a period of about 26,000 years. D) Stars appear to move randomly relative to our Sun in the local solar neighborhood. E) The universe is expanding.