If the velocity of a sound wave is 330 m/s, what is the frequency of a wave which has a wavelength of 33 cm ?

If y gets smaller as x gets bigger and y have an relationship?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.