how much work is done in moving a charge of 3 coulomb for a point at the volts 115 to a point at 125 volts

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

What’s #16 asking me and how do i solve it?

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?