Which of the following best explains why a magnet sticks to a refrigerator? the magnet is

Abearing is designed to a reduce friction b. support a load c. guide moving parts such as wheels, shafts and pivots d. all of the above

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?