A satellite orbiting the Earth in a circular orbit at 400 miles from the center of Earth is moved to a distance of 1,200 miles from the center of Earth. The gravitational force between the Earth and satellite changes by a factor of 3
a. True
b. False
Indicate whether the statement is true or false
False
RATIONALE: False, it changes by a factor of 32 = 9.
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A coconut and a bird's feather fall from a tree through the air to the ground below. The force of air resistance is
A) greater on the coconut. B) greater on the feather. C) the same on each.
Beyond the formation of iron, nuclear energy can be produced only by:
A) fusion of still heavier elements. B) ionization of the radioactive nuclei. C) fission of heavy nuclei back toward lighter ones. D) gravity. E) the dark force.
In a single slit diffraction experiment, the width of the slit is 3.1 x 10-5 m and the distance from the slit to the screen is 2.2 m
If the beam of light of wavelength 600 nm passes through the slit and forms a diffraction pattern on the screen, what is the linear distance on the screen from the center of the diffraction pattern to the second dark fringe? A) 3.9 cm B) 4.2 cm C) 6.3 cm D) 2.1 cm E) 8.5 cm
The two ends of a 2.00-? resistor are connected to a 8.20-V battery. What is the current through the resistor?
a. 16.4 A b. 0.244 A c. 4.10 A d. 10.2 A e. 6.20 A