Tides caused mainly by the Moon occur in Earth's
A) oceans.
B) atmosphere.
C) interior.
D) all of the above
Answer: D
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An interval of one Celsius degree is equivalent to an interval of:
a. one Fahrenheit degree. c. 5/9 Fahrenheit degree. b. one kelvin. d. 5/9 kelvin.
Power is
a. the time rate of doing work. b. the time rate of doing velocity. c. the time rate of doing momentum. d. the time rate of doing force.
An electron-volt is the energy gained by an electron if it is accelerated through a potential difference of one volt. What is the equivalent to an electron-volt in kilograms? (c = 3.00 × 108 m/s, e = 1.60 × 10-19 C)
What will be an ideal response?
A person's eye lens is 2.8 cm away from the retina. What must the focal length of this lens be in order for an object placed at the far point of the eye to focus on the retina?
A) -2.8 cm B) 2.8 cm C) -2.4 cm D) 2.4 cm E) 2.2 cm