The secondary coil of a neon sign transformer provides 7500 v at 0.01 a. the primary coil operates on 120 v. what is the input current in the primary coil of this transformer assuming that no energy is lost in the transformer?

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?