The electric force between charges depends on the
A) magnitude of electric charges.
B) separation distance between electric charges.
C) both of these
D) none of the above
Answer: C
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An ideal gas is confined to a container with an adjustable volume. If the number of molecules and the temperature are held constant, by what factor will the volume change when the pressure is quintupled?
a. 25 b. 0.2 c. 0.04 d. 5
Which of these is a likely source of strong gravity waves?
a. The Earth. b. The Sun. c. A supernova. d. Nuclear fission. e. Nuclear fusion in stars.
The San Andreas Fault is a transform fault separating the
A) westward moving North American Plate from the eastward moving Pacific ridge. B) westward moving North American Plate from the southwest moving Pacific Plate. C) Farallon Plate from the North American Plate. D) eastern part of California from the Gulf of California.
A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 24 m/s west, and the acceleration of the car has components of 2.4 m/s2 east and 1.8 m/s2 south. What is the radius of the circle?
a. 0.24 km b. 0.19 km c. 0.32 km d. 0.14 km e. 0.27 km