a battery of 9v is connected in series with resistors of 0.2 ohm,0.4 ohm, 0.5 ohm and 12 ohm respectively . how much current would flow throw the 12ohm resistor

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?

Match each scenario to the form of energy it represents

Why does an object have a different weight o the moon than it does on earth