The idea of continental drift was not generally accepted when Wegener proposed it because
a. the Bible did not support it.
b. Wegener was a meteorologist, not a geologist.
c. Wegener was not well known.
d. no satisfactory mechanism was proposed.
d
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The apparent shape of an elliptical galaxy is an effect of perspective.
Answer the following statement true (T) or false (F)
Acceleration due to gravity is 9.8 m/s2 on the surface of Earth, and at orbits 200 miles above the surface of Earth, where the space shuttle orbits, the acceleration is
A. less than 9.8 m/s2. B. greater than 9.8 m/s2. C. exactly 9.8 m/s2-same as on the surface of Earth. D. undetermined, because it depends on the mass of the spacecraft or satellite.
A solid concrete wall has dimensions 4.0 m × 2.4 m and is 30 cm thick. The thermal conductivity of the concrete is 1.3 W/m ? K, and it separates a basement from the ground outside
The inner surface of the wall is at 18°C, and the outside surface is at 6°C. How much heat flows through the wall every hour? A) 1.8 kJ B) 5.0 MJ C) 1.8 MJ D) 500 J E) 5.0 kJ
If you locate the north celestial pole in your local sky and measure its altitude, then you will know
A) your latitude and longitude. B) your latitude and the direction that is due north for you. C) your longitude and the direction that is due north for you. D) your latitude and the local time. E) your latitude, longitude, and local time.