What is an example of action and reaction forces?

a. a deep-space probe drifting in a straight path
b. a tennis racket striking a tennis ball
c. an air hockey puck moving at constant speed

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?

The two required components for a generator

Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.