A balloon can be charged by rubbing it with the sleeve of your sweater while holding it in your hand. You can conclude from this that a balloon is an insulator. a conductor. a Gaussian surface. a semiconductor. a neutral object.

What do you think car designers do if the damage caused by a crash test is too severe?

Use the drop-down menus to answer each question. which line represents the movement of a cart with a constant acceleration? a which line represents the movement of a cart with a constant velocity? c which lines represents a cart with no velocity or acceleration? b

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?