Light shined through a single slit will produce a diffraction pattern. green light (565 nm) is shined on a slit with width 0.210 mm. (a) find the width of the central maximum located 1.80 m from the slit. (b) determine the width of the first order bright fringe.

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel