A 385-g tile hangs from one end of a string that goes over a pulley with a moment of inertia of and a radius of 15.0 cm. A mass of 710 g hangs from the other end of the string. When the tiles are released, the larger one accelerates downward while the lighter one accelerates upward. The pulley has no friction in its axle and turns without the string slipping. What is the tension in the string on the side of the 710-g tile?
A) 9.77 N
B) 6.87 N
C) 5.59 N
D) 4.41 N
E) 3.68 N
C
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Conversion of Units: The tank of a certain car holds 16 gallons of gasoline. (1.00 gal = 3.785 L)(a) How many liters of gasoline does this tank hold?(b) How many kilometers can the car travel on one tank if it gets 25 miles per gallon?
Fill in the blank(s) with the appropriate word(s).
A 4.00 kg mass is located at (2.00 m, 2.00 m, 0.00 m) and a 3.00 kg mass is located at (–1 m, 3.00 m, 0.00 m). If this system of masses rotated about the Y-axis perpendicular to the X-Z plane, then the moment of inertia of this system is
A. 40 kg 
B. 32 kg
C. 29 kg
D. 24 kg
E. 19 kg
Consider a quanton in a box. How does the wavelength ? of an energy eigen function in this case depend on the energy E corresponding to that eigen function?
A. ? ? E
B. ? ?
C. ? is independent of E.
D. ? ? 
E. ? ? 1/E
A 2500-N pile driver ram falls 10 m and drives a post 0.1 m into the ground. The average force on the post is
A) 2500 N. B) 25,000 N. C) 250,000 N. D) 2,500,000 N.