Mars's atmosphere is most similar in composition to the atmosphere of ________.

A. Mercury
B. Venus
C. the Moon
D. Earth


Answer: B

Physics & Space Science

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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

Physics & Space Science

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:

?

?

Physics & Space Science

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

Physics & Space Science

Exfoliation

What will be an ideal response?

Physics & Space Science