June 2008 Q 75,76 In a nuclear reaction, a mass of 0.01863 u is converted to energy. u stands for universal mass unit. What is the energy converted from mass by this nuclear reaction in MegaElectronvolt (MeV)?

Sound is a disturbance that travels through a medium as a

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.