How will the mass of a rusted iron nail compare with the mass of the same nail before it rusted? a. the two masses will be the same. b. the rusted nail will have the greater mass. c. the unrusted nail will have the greater mass. d. it depends on whether or not the nail has rusted all the way through.

What will a positive and a negative charge do if they are separated from each other?

What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force

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?