A gas whose pressure, volume and temperature are 275 kN/㎡, 0.09m³ and 185°C, respectively, has its state changed at constant pressure until its temperature becomes 15 °C. How much heat is transferred from the gas and how much work is done on the gas during the process? Take R=0.29 kj/kgK, Cp=1.005 kj/kg K

Write the equation for momentum, first using symbols for the variables, then using words for the variables.

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

The ozone hole appears in antarctica during