If the same wave in question #3 travels through water with the same wavelength, at what frequency will it be traveling? Speed of sound in water=350m/s

Why there is no inductive reactance in dc circuits

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?