A lunar month is about 28 days. If the Moon were farther from Earth than it is now, the lunar month would be
A) more than 28 days.
B) less than 28 days.
C) about 28 days.
Answer: A
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When a single boxcar in the freight yard hooks onto a stationary string of four boxcars, there is some kinetic energy lost. Which of the following could account for the missing energy?
A. Sound energy in the loud CLANG when they hook together and heat energy in the clamping mechanism between cars as it opens and then captures the fifth boxcar B. Heat energy in the clamping mechanism between cars as it opens and then captures the fifth boxcar C. Sound energy in the loud CLANG when they hook together
Theory predicts that neutron stars may not exceed 3 solar masses
a. True b. False Indicate whether the statement is true or false
The Earth's geological history is divided into how many eons?
A) 4 B) 1 C) 3 D) 2
Which path correctly indicates the motion of the pendulum bob after the string is cut when the pendulum is at the bottom of its swing?
A. A
B. B
C. C