If you are standing at the Earth's North Pole, which of the following would be located at the zenith?
a. The nadir
b. The star Vega
c. The celestial equator
d. The north celestial pole
D
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Significant Figures: A traveler has about $536 in his checking account, about $2107 in his savings account and exactly $7.62 in his wallet. To the greatest precision warranted, how much money does this shopper have?
A. $2651 B. $2650 C. $2650.6 D. $2650.62 E. $2650.620
The geocentric model was based on the observation that ________.
A. crystalline spheres rotated through the sky B. everything moves around Earth from east to west C. the Sun and Moon were flawless spheres D. Earth is motionless in space E. the sphere was a divine shape
A pressure of 10.0 mm Hg is measured using a constant-volume gas thermometer at a temperature of 50.0°C. What is the pressure (in mm Hg) at the zero-point temperature?
a. 31.8 b. 11.8 c. 8.45 d. 54.6 e. 68.3
The fuel that provides most of the electricity in the U.S. is ________
a. oil b. natural gas c. coal d. uranium e. solar