How is the gravitational force between two objects affected by changes in the masses of the objects and by changes in the distance between the two objects?
A) The force increases with increased mass, and increases with increased distance.
B) The force decreases with increased mass, and decreases with increased distance.
C) The force decreases with increased mass, and increases with increased distance.
D) The force increases with increased mass, and decreases with increased distance.
D
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In solid-solution strengthened metals, substitutional and interstitial solid-solution atoms interact with _________dislocations in the metal.
Fill in the blank(s) with the appropriate word(s).
The proper interpretation of the Hubble law (which relates the redshift of a galaxy to its distance) is that as time goes on, galaxies are____
a. staying relatively still in space while the space between the galaxies contracts b. moving away from a common center in space that is neither expanding nor contracting c. staying relatively still in space while the space between the galaxies expands d. moving away from a common center while the space between the galaxies expands e. moving toward a common center in space that is neither expanding nor contracting
Acceleration: A racing car accelerates uniformly from rest along a straight track. This track has markers spaced at equal distances along it from the start, as shown in the figure. The car reaches a speed of 140 km/h as it passes marker 2. 
Where on the track was the car when it was traveling at half this speed, that is at 70 km/h?
A. Before marker 1 B. At marker 1 C. Between marker 1 and marker 2
What is the direction of 
at point P?
A. A B. B C. C D. D E. E F. F T. Zero