Asteroids are thought to be
a. the remains of a planet between Mars and Jupiter that broke up.
b. escaped small moons.
c. leftover planetesimals from the inner solar system.
d. leftover planetesimals from the outer solar system.
Answer: c. leftover planetesimals from the inner solar system.
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Nuclear Binding Energy: The following masses are known: 
What is the binding energy of 
Ra? (1 u = 931.5 MeV/c2)
A. 1700 MeV B. 1900 MeV C. 2100 MeV D. 2300 MeV E. 2500 MeV
The Doppler Effect is a phenomenon that allows one to measure an object's:
A) temperature. B) radius. C) radial motion. D) tangential motion. E) chemical composition.
The unit of power, watt, is dimensionally the same as:
a. joule-second. b. joule/second. c. joule-meter. d. joule/meter.
A 10-cm focal length converging lens is used to magnify small newspaper print 2.0 mm high. Calculate the height of the image (in mm) for the maximum magnification for a normal eye
a. 3.5 b. 7.0 c. 9.2 d. 12 e. 2.5