You rub two ballons on your hair on a dry day your hair is attracted to both ballons then you bring the ballons near one another how would you describe what happens to the ballons?

Multiple choise
1.They repel one another
2.they attract one another
3.they neither attract nor repel one another
4.opposite charges make one balloon become larger and one become smaller

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

The law of reflection states that the angle of reflection is equal to the angle of