You're driving down the highway and a bug spatters into your windshield. Which undergoes the greater change in momentum during the time of contact?
A) the bug
B) your car
C) both the same
Answer: C
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Very massive stars lose their outer layers in a planetary nebula
a. True b. False Indicate whether the statement is true or false
Models of the Big Bang that include inflation predict that the overall geometry of the universe should be "flat" (in spacetime). This prediction
A) agrees with data found by studying the cosmic microwave background. B) has been verified by observing the paths of light coming from distant galaxies. C) has been shown to be incorrect by study of the expansion pattern of the universe. D) cannot be tested at this time.
State Pascal's Principle
What will be an ideal response?
Ancient coal beds can be found in Antarctica because
A) at one time the climate of Antarctica was mild enough to support swamplands. B) ancient coal beds were frozen in the Antarctic ice. C) it used to be located in the northern hemisphere. D) it was located at the equator during the Carboniferous period.