The frequency of a simple pendulum does NOT depend on
A) its mass.
B) its length.
C) the acceleration due to gravity.
D) all of the above
E) none of the above
Answer: A
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A 3.0-kg object moving 8.0 m/s in the positive x direction has a one-dimensional elastic collision with an object (mass = M) initially at rest. After the collision the object of unknown mass has a velocity of 6.0 m/s in the positive x direction. What is M?
a. 7.5 kg b. 5.0 kg c. 6.0 kg d. 4.2 kg e. 8.0 kg
Simple Pendulum: A simple pendulum has a period T on Earth. If it were used on Planet X, where the acceleration due to gravity is 3 times what it is on Earth, what would its period be?
A. 3T
B. 
T
C. T
D. T/
E. T/3
A plano-convex lens is to have a focal length of 40 cm. It is made of glass of index of refraction 1.65. What radius of curvature is required?
A) 36. cm B) 26. cm C) 13. cm D) 32. cm E) 44. cm
A point charge (5.0 pC) is located at the center of a spherical surface (radius = 2.0 cm), and a charge of 3.0 pC is spread uniformly upon this surface. Determine the magnitude of the electric field 1.0 cm from the point charge
a. 0.72 kN/C b. 0.45 kN/C c. 0.63 kN/C d. 0.90 kN/C e. 0.18 kN/C