Two large speakers broadcast the sound of a band tuning up before an outdoor concert. While the band plays an A whose wavelength is 0.773 m,
Brenda walks to the refreshment stand along a line parallel to the speakers. If
the speakers are separated by 12.0 m and Brenda is 24.0 m away, how far
must she walk between the "loudspots"?

Abatter hits the baseball a with an initial velocity of v0 = 110 ft/sec directly toward fielder b at an angle of 23° to the horizontal; the initial position of the ball is 2.2 ft above ground level. fielder b requires 0.44 sec to judge where the ball should be caught and begins moving to that position with constant speed. because of great experience, fielder b chooses his running speed so that he arrives at the “catch position” simultaneously with the baseball. the catch position is the field location at which the ball altitude is 8.4 ft. determine the velocity of the ball relative to the fielder at the instant the catch is made.

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.