(b) Explain how light is transmitted through glass. Why is ultraviolet radiation not transmitted
through glass?

Explain vector addition, triangle method and parallelogram method

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?