Neptune has a highly tilted rotation axis, much like Uranus, and very unlike Saturn's
Indicate whether the statement is true or false
FALSE
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A horizontally-projected beam of electrons travelling at 55 km/s travels between two parallel plates separated by 7.4 cm, and 12 cm long, between which there is an electric field of 7.2 mV/m upward. If the beam enters the region at a height of 3.7 cm above the lower plate, at what height above the lower plate is the beam when it exits? The electron mass is
A. 0.9 cm B. 2.3 cm C. 5.1 cm D. 4.6 cm
Define the Roche Limit
What will be an ideal response?
Two cars, one in front of the other, are traveling down the highway at 25 m/s. The car behind sounds its horn, which has a frequency of 540 Hz. What is the frequency heard by the driver of the lead car? (vsound = 340 m/s)
a. 463 Hz c. 579 Hz b. 540 Hz d. 500 Hz
Earth's mantle is
a. metallic. b. very dense gas. c. solid. d. liquid.