Suppose we could magically double the mass of the moon, double the mass of Earth, and double the distance between Earth and the moon, all at the same time. How would this affect the force that the moon exerts on Earth?
A) The force would be halved.
B) The force would be quadrupled.
C) The force would be doubled.
D) The force would be unchanged.
E) The force would be multiplied by eight.
D
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Indicate whether the statement is true or false
During a total lunar eclipse, which of the following are true? I. The photosphere of the sun is obscured by the moon. II. The moon is in Earth's umbra. III. The moon is new. IV. The moon is full
a. I, III b. II, IV c. I, II, III d. II, III e. I, II, III, IV
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A. 36.9° S of E B. 36.9° E of S C. 53.1° S of E D. 53.1° E of S
In an elastic solid there is a direct proportionality between strain and:
a. elastic modulus. c. cross-sectional area. b. temperature. d. stress.