A reasonable estimate for the duration of a typical physics lecture is

A) 600 s.
B) 1000 s.
C) 3500 s.
D) 10,000 s.


C

Physics & Space Science

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The spin of all quarks is

a. 0. b. 1/2. c. 1. d. 1/3 or 2/3.

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Relate the formation of Mercury's scarps to its differentiation

What will be an ideal response?

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The expansion of the universe seems to be accelerating. The evidence for this is based on observations of

A) the manner in which the stars are distributed in our own galaxy. B) the cosmic background radiation. C) the slowing down in the pulsation rate of distant neutron stars. D) gas clouds orbiting the centers of galaxies. E) the redshift in the light from the explosions of distant supernovas.

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What is the net force on a 10-kg solid steel sphere falling in air at terminal speed?

A. 980 N B. 200 N C. 98 N D. 49 N E. Some value other than those given above.

Physics & Space Science