Geosynchronous satellites
a. have an orbital period of 24 hours. b. remain above a geographical point on Earth while Earth rotates underneath.
c. have an orbital period of 24 hours and remain above a geographical point on Earth while Earth rotates underneath. d. None of the other choices are correct.
c
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A solid steel column is 4.0 m long and 0.20 m in diameter. Young's modulus for this steel is 2.0 × 1011 N/m2. By what distance does the column shrink when a 5000-kg truck is supported by it?
A) 3.2 × 10-6 m B) 8.0 × 10-7 m C) 3.1 × 10-5 m D) 7.8 × 10-6 m
The largest plutons are called
a. sills. b. dikes. c. laccoliths. d. batholiths.
Compared to a 1-kg block of solid iron, a 2-kg block of solid iron has the same
A) mass. B) volume. C) weight. D) all of the above E) none of the above
In this photo, water drops produce disturbances that move outward in circular patterns. What moves outward as drops hit the water's surface? (Hint: If a cork were floating on the water's surface, what would be its motion?)
a. The water at the surface. b. The energy of neighboring water molecules. c. Both a. and b.