When a steady current flows through a resistor, the resistor heats up. We say that "electrical energy is dissipated" by the resistor, that is, converted into heat. But if energy is dissipated, where did it come from? Did it come from the voltage source through the wires?

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j

Why do atoms emit energy of only specific wavelengths