In the absence of air resistance, the path of a projectile is a(n) A. Parabola.
B. Arc
C. Polygon
D. Semicircle

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Atruck with 34-in.-diameter wheels is traveling at 55 mi/h. find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes:

How does changing the frequency affect the energy of the wave?