If a helium filled balloon has a volume of 1.40 L at 35°C and 110.0 kPa, what is the volume at STP if # of molecules remain constant

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.