Two sound waves of equal amplitude interference so that compression of one wave falls on the rarefaction of the other. which statement is true?
a. no sound is heard
b. the loudness of the sound increase
c. there is no change in the sound
d. the pitch of the sound increases

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning

The mini-refrigerator fire was most likely caused by what type of wiring?