If a wave is traveling at 60 cm/second and has a wavelength of 15 cm, what is the frequency? A. 900 Hz
B. 60 Hz
C. 8 Hz
D. 4 Hz

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?