A centrifuge has a rotational inertia of 
How much energy must be supplied to bring it from rest to 500 rad/s?
A. 627 J
B. 570 J
C. 688 J
D. 743 J
E. 583 J
C. 688 J
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Which of the following have the least RBE (relative biological effectiveness)?
A) slow neutrons B) beta particles C) alpha particles D) fast protons E) gamma rays
When introduced into a region where an electric field is present, a proton with initial velocity 
will eventually move
A. along an electric field line, in the positive direction of the line. B. along an electric field line, in the negative direction of the line. C. to a point of decreased potential. D. to a point of decreased potential. E. as described in both (a) and (c).
William and Caroline Herschel attempted to make a map of the Milky Way galaxy by counting the number of stars visible in different directions
a. True b. False Indicate whether the statement is true or false
Transits of multiple planet systems can be analyzed to infer planetary masses
Indicate whether the statement is true or false