Starting from rest at the top, a child slides down the water slide at a swimming pool and enters the water at a final speed of 4.9 m/s. At what final speed would the child enter the water if the water slide were twice as high? Ignore friction and resistance from the air and the water lubricating the slide.

Astring that is fixed at both ends has a length of 1.05 m. when the string vibrates at a frequency of 91.0 hz, a standing wave with five loops is formed. (a) what is the wavelength of the waves that travel on the string? (b) what is the speed of the waves? (c) what is the fundamental frequency of the string?

Which two particles are found in the center of an atom

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?