Consider a two-body system of the Earth orbiting the Sun. The center of mass would be located near the _________
a. Sun b. Earth
c. Moon d. midway point
a
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Absolute visual magnitude is the:
A) apparent magnitude of a star observed from Earth. B) luminosity of a star observed from a distance of 1000 pc. C) apparent magnitude of a star observed from a distance of 10 pc. D) luminosity of a star observed from Earth.
Significant Figures: What is the result, expressed to the proper number of significant figures, of adding 23.4 to 91.237 and then subtracting 23.4?
A. 91.237 B. 91.2 C. 91.3 D. 91.0 E. 91
Current: What current is flowing in a resistor if 4.0 × 1016 electrons pass a point in the resistor in 0.50 s? (e = 1.60 × 10-19 C)
A. 0.013 A B. 0.31 A C. 6.3 A D. 78 A
Two compressible solids are formed into spheres of the same size. The bulk modulus of sphere two is twice as large as the bulk modulus of sphere one. You now increase the pressure on both spheres by the same amount
As a result of the increased pressure, how is the change in volume of sphere two (?V2 ) related to the change in volume of sphere one (?V1 )? A) ?V2 = 2?V1 B) ?V2 = 4?V1 C) vV2 = ?V1 D) ?V2 = 1/2?V1 E) ?V2 = 1/4?V1