Use the Hertzsprung-Russell diagram and temperature and luminosity data to identify each star. i need help !

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

In a series circuit the __ is the same at every point

What are the similarities & differences between a thermistor and a light dependent resistor in physics?