Answer the following statement(s) true (T) or false (F)
1. Suppose that we place objects A and B into a large bucket of water and allow them to come into equilibrium with the water. If we now extract A and B from the water and immediately place them in contact with each other, they will necessarily be in equilibrium
1. TRUE
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When charge Q1 is placed at point P1, the resulting potential at point P is V1 . When Q2 is placed at point P2 after Q1 is in position at P1, the resulting potential at P becomes V2 . What is the potential at point P if charge Q1 is then removed?
a. V1 + V2 b. V1 – V2 c. V2 – V1 d. (V1 + V2)/2
Why did the terrestrial planets lose the majority of the gas in their primary atmospheres?
a. They were too hot and their escape velocities too low to hold onto them. b. The solar wind was too strong and blew these gases off the planets. c. Their high surface temperatures made the gas chemically react with the rock. d. The initial gases were so heavy when the planet differentiated that they sank to the core.
In going from Sa to Sc, the size of the ________ reduces significantly
Fill in the blank(s) with correct word
A speedy tortoise can run with a velocity of 10.0 cm/s and a hare can run 20.0 times as fast. In a race, they both start at the same time, but the hare stops to rest for 2.00 minutes. The tortoise wins by a shell (20.0 cm). What was the length of the race?