About how many tons of meteorites strike the Earth on a daily basis?
A) 20 tons
B) 200 tons
C) 2000 tons
D) 20,000 tons
Answer: B
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You have taken a picture of a galaxy 1 billion light years away. That picture shows
A) a galaxy that is 1 billion years old. B) a galaxy that is 1 billion light years old. C) a galaxy that is 13 billion years old. D) a galaxy as it was 1 billion years ago.
The magnetic field due to a 2-A current flowing in a long, straight wire is 8 ?T at a point P, a certain distance away from the wire. How far is this point from the center of the wire?
A) 2 cm B) 3 cm C) 4 cm D) 5 cm E) 6 cm
A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00 
acquires an angular velocity of 5.00 rad/sec. The CD continues rotating at 5.00 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration. What is the total acceleration of a point 4.00 cm from the center at the time 10.0 seconds from the start?
A. 0.65 
B. 1.00
C. 1.25
D. 1.37
E. 1.86
A parent pushes a small child on a swing so that the child moves rapidly away while the parent remains at rest. How does the magnitude of the force that the child exerts on the parent compare to the magnitude of the force that the parent exerts on the child?
A. The force on the child is larger in magnitude. B. The force on the parent is larger in magnitude. C. These forces have equal magnitudes. D.The child exerts zero force on the parent. E.There is no way to tell.