When a positively charged balloon is brought near a neutrally charged can, what would happen to the charges in the neutral can? If the neutral can had a grounding wire attached to it, what kind of charge would go down the grounding wire?

During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:

When an object is heated it contracts. a. true b. false

What are two different ways you could find the value of a? explain these methods.