Which of the following scenarios will cause the current to stop flowing within a circuit?
a. the switch within the closed circuit is opened.
b. insulating materials within the circuit are replaced with conducting materials.
c. the circuit is closed.
d. a wire connected to the voltage source runs from the negative to the positive terminal

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.