A quantity that has both a magnitude and direction associated with it is called a __________
Fill in the blank(s) with correct word
vector
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When two objects of unequal masses orbit each other, the center of mass is
a. at the center of the more massive object. b. at the center of the least massive object. c. half way between the centers of each object. d. always closer to the less massive of the two objects. e. always closer to the more massive of the two objects.
What types of stars end their lives with supernovae?
A) all stars that are yellow in color B) stars that are at least several times the mass of the Sun C) all stars that are red in color D) stars that are similar in mass to the Sun E) stars that have reached an age of 10 billion years
A ball is thrown straight up, and reaches the top of its trajectory, the acceleration
a. zero. b. 9.8 m/s2. c. points down. d. points up.
A beta particle is another name for a helium nucleus
a. True b. False Indicate whether the statement is true or false