A negatively charged rod is brought near a foil plate, which is attracted towards the rod. Which of the following must be true about the foil plate?

Ahollow metal sphere has 6 cm and 11 cm inner and outer radii, respectively. the surface charge density on the inside surface is −100nc/m2. the surface charge density on the exterior surface is:

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?