How deep under the surface of a lake would the pressure be double that at the surface? (1 atm = 1.01 × 10^5 Pa)
a. 1.00 m
b. 9.80 m
c. 10.3 m
d. 32.2 m
c
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Which of the following scientists is credited with the discovery of the electron?
a) Planck b) Curie c) Maxwell d) Thompson e) Fermi
In the process of planetary formation, when would the inward migration of Jupiters have been most likely?
A) Shortly after all of the planets had finished forming B) Just after the system was cleared of the remaining gas C) Before these planets had grown to full size D) After these planets had reached full size, but before terrestrial planets had finished forming E) At least hundreds of millions of years after planetary formation ended
Because of refraction, a person standing waist deep in a swimming pool appears to have
A) shorter legs. B) longer legs. C) thinner legs. D) none of the above
You roll a ball off a table and at the same time drop a second ball straight down from the edge of table. The second ball reaches the ground ____________ the first ball reaches the ground
a. before b. at the same time that c. after d. before or after, depending on the masses, e. cannot be determined