If an electric water heater uses 40 kw of power and runs for 8 hours, what is the total amount of energy used? a. 5 kilowatt-hours b. 32 kilowatt-hours c. 48 kilowatt-hours d. 320 kilowatt-hours

True or false graphs must include scales that increase by the same amount

Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)

What ia the energy of an object because of its potential and kinetic energies