A far-sighted student has a near point of 1.0 m. Calculate the focal length (in cm) of the glasses needed so the near point will be normal (25 cm)
a. 72
b. 25
c. 33
d. 100
e. ?33
c
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According to the first law of thermodynamics, for any process that may occur within an isolated system, which of the following choices applies?
a. entropy remains constant c. entropy decreases b. entropy increases d. None of the above choices apply.
The terrestrial planets in our solar system are
A) Mercury, Venus, Earth, and Mars. B) Jupiter, Saturn, Uranus, and Neptune. C) Mercury, Venus, Earth, Mars, and Pluto. D) Jupiter, Saturn, Uranus, Neptune, Pluto, and Eris.
Electric potential, measured in volts, is the ratio of electric energy to the amount of electric
A) current. B) resistance. C) charge. D) voltage. E) none of the above
The Cassini space probes used electricity provided by __________
Fill in the blank(s) with correct word