A student rubs a balloon against her hair. She then places the side of the balloon against a wall and the balloon sticks to the wall. a) Explain why the balloon sticks to the wall.
b) If the balloon is turned around so the other side touches the wall, will the balloon stick to the wall? Justify your answer.

Which of the following represents an upside-down image?

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

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?