Mars's atmosphere is most similar in composition to the atmosphere of ________.
A. Mercury
B. Venus
C. the Moon
D. Earth
Answer: B
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Exfoliation
What will be an ideal response?
The free-body diagram below represents a 1500-kg car sitting on a 3000-kg bridge supported at its far ends. The car's position is three quarters of the length L from the left end of the bridge. Identify the one error in the torque equation below:
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At the highest point on the path of a projectile, its vertical acceleration
a. equals g pointing downwards b. equals g pointing upwards c. is zero d. is undetermined e. does not exist
Modern mammals are descendants of
A) birds that were able to survive the impact that wiped out the dinosaurs 65 million years ago B) sea animals that colonized the land after the impact that wiped out the dinosaurs 65 million years ago C) early mammals that lived under the ground that were able to survive the impact that helped to wipe out the dinosaurs 65 million years ago D) early mammals that killed off the dinosaurs