Denver, Colorado and Istanbul, Turkey have similar latitudes but very different longitudes. Which of the following is true about how observers in those cities will view the constellation Orion, which is located approximately on the celestial equator?
A) Orion will cross the meridian at about the same local time in both cities, but at different altitude and direction.
B) Orion will cross the meridian at the same altitude and direction in both cities, but at different local times.
C) Orion will cross the meridian at the same altitude and direction and at about the same local time in both cities.
D) If Orion is visible in the night sky in one city, then the other city will need to wait a few months to see Orion in its night sky.
C) Orion will cross the meridian at the same altitude and direction and at about the same local time in both cities.
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Which of the following describes erosion?
A) the excavation of bowl-shaped depressions by asteroids or comets striking a planet's surface B) the eruption of molten rock from a planet's interior to its surface C) the disruption of a planet's surface by internal stresses D) the wearing down or building up of geological features by wind, water, ice, and other phenomena of planetary weather
Compute the voltage drop along a 30-m length of household no. 14 copper wire (used in 15-A circuits). The wire has diameter 1.628 mm and carries a 13-A current. The resistivity of copper is 1.68×10?8??m.
A typical battery (e.g., D-cell or AA-cell) supplies electricity at an approximate cost of
A) $1./kW ? h. B) 10.¢/kW ? h. C) $10./kW ? h. D) 1.¢/kW ? h. E) $100./kW ? h.
A pressure of 10.0 mm Hg is measured at the triple-point of water using a constant-volume gas thermometer. What will the pressure be (in mm Hg) at 50.0°C?
A. 68.3 B. 1.80 C. 31.8 D. 11.8 E. 8.50