Light of wavelength 559 nm is used to illuminate normally two glass plates 22.1 cm in length that touch at one end and are separated at the other by a wire of radius 0.026 mm. how many bright fringes appear along the total length of the plates.

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.

How is the ideal mechanical advantage of a wheel and axle calculated?

Can a molecule have bond dipoles but not have a molecular dipole?