After emitting the electron, the atom is excited. It gets rid of excess energy by emitting a gamma ray. What effect does this have on the charge and the mass of the nucleus? - simple answers please

Aforce of 9.00 newtons acts at an angle of 19.0 to the horizontal. what is its component in the horizontal direction?

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)

In which of these cases are the two wave points considered to be in phase with each other?