The gravitational Force between two objects decreases if you __________ their mass or _________ the distance between them.
Fill in the blank(s) with the appropriate word(s).
decrease; increase
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Eudoxus of Cnidus (408–355 BCE), a student of Plato's, applied the principle of heliocentric motion to produce a mathematical description of the motions of the Universe
a. True b. False Indicate whether the statement is true or false
A ball thrown upwards reaches a maximum height and then comes back down to the original level. As the ball is going upwards, the velocity points __________ and the acceleration points __________
Fill in the blank(s) with correct word
The observed relationship between the masses of central black holes and the bulge masses of galaxies implies that
A) galaxy formation and supermassive black hole formation must be related. B) the black hole will eventually suck in the rest of the galaxy. C) the biggest galaxies have the most luminous quasars. D) quasars were more common 10 billion years ago than they are today.
What particle carries the strong force?
A.) Graviton. B.) W boson. C.) Z boson. D.) Gluon. E.) Photon.