In an experiment on photoelectric effect, what happens if The intensity of incident light is doubled
frequency of incident light is doubled​

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

If a simple machine reduces the strength of a force, what must be increased?

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.