Suppose the Moon's orbit were unchanged, but it rotated faster (meaning it did not have synchronous rotation). Which of the following would be true?
A) The Moon would go through its cycle of phases (from one new moon to the next) in less time than it does now.
B) We would no longer always see nearly the same face of the Moon.
C) Tides would be stronger; that is, higher high tides and lower low tides.
D) High tides would occur more frequently than they do now.
E) All of the listed choices are true.
B) We would no longer always see nearly the same face of the Moon.
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In the diagram below, what is the diameter of Jupiter?
a. about 7.0 x 104 km
b. about 7.0 x 105 km
c. about 1.4 x 104 km
d. about 1.4 x 105 km
e. about 3.5 x 106 km
How long, approximately, do geologists estimate it takes for the entire seafloor to be replaced due to plate tectonics?
A) 2 million years B) 20 million years C) 200 million years D) 2 billion years E) longer than the age of the solar system
A telescope with an 8-inch mirror will collect twice as much light as one with a 4-inch mirror
Indicate whether the statement is true or false
When a metal surface is illuminated with light of wavelength 437 nm, the stopping potential for photoelectrons is 1.67 V
(c = 3.00 × 108 m/s, h = 6.626 × 10-34 J • s, e = - 1.60 × 10-19 C, 1 eV = 1.60 × 10-19 J, mel = 9.11 × 10-31 kg) (a) What is the work function of the metal, in eV? (b) What is the maximum speed of the ejected electrons?