Energy Conservation With Conservative Forces: Assuming negligible friction, what spring constant (force constant) would be needed by the spring in a "B-B gun" to fire a 10-g pellet to a height of 100 m if the spring is initially compressed by 0.10 m?
A. 20 N/cm
B. 20 N/m
C. 200 N/m
D. 2000 N/cm
E. 0.0020 N/m
Answer: A
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Light is reflecting off a wedge-shaped thin piece of glass producing bright and dark interference fringes. If a certain location has a bright fringe, a nearby point will have a bright fringe if the thickness of the glass increases by:
a. one wavelength of the light. c. 1/8 of a wavelength of the light. b. 1/4 of a wavelength of the light. d. 1/2 of a wavelength of the light.
A viscous fluid is flowing through a small tube at a rate of 0.400 
If the pressure difference between one end of the tube and the other is tripled, the length is doubled and the radius is also doubled, then what is the rate of flow of the fluid?
A. 9.6 
B. 10.2 
C. 12.00 
D. 14.2
E. 15.5
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Answer the following statement true (T) or false (F)
Which two bodies show evidence of heavy cratering?
a. Mercury and Venus b. Mercury and Earth c. Mercury and Earth’s Moon d. Earth and Venus e. Earth and Mars