The second stage of planetary evolution is _____
A) cratering and giant basin formation
B) ozone layer formation
C) differentiation
D) slow surface evolution
A
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If an object was freely falling, from what height would it need to be dropped to reach a speed of 70.0 m/s before reaching the ground?
A) 250 m B) 322 m C) 189 m D) 500 m E) 712 m
Which of the following is NOT a solution to the Fermi Paradox?
A) no one is interested or able to communicate B) we are unable to detect their communications C) we are not interested in communicating D) no one is out there
If you could count stars at a rate of about one per second, how long would it take to count all the stars in the Milky Way Galaxy?
A) several days B) several thousand years C) several weeks D) several years
A 5.00-m-long 200-N uniform ladder, rests against a smooth vertical wall with its base on a horizontal rough floor, a distance of 1.20 m away from the wall. The coefficient of static friction between the ladder and the floor is 0.200
How far up the ladder, measured along the ladder, can a 600-N person climb before the ladder begins to slip? A) 1.50 m B) 1.26 m C) 1.05 m D) 3.95 m E) 4.56 m