A capacitor is charged by connecting it to a battery. Keeping the battery connected, the distance between the plates is doubled. What happens to the charge and the potential

Contrast the force of gravity between these pairs of objects a 1 kg mass and a 2 kg mass that are 1 m apart and two 2 kg masses that are 1 m apart

What is the coefficient of kinetic friction μk between the block and the tabletop?

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions