Suppose that the emf from a rod moving in a magnetic field was used to supply the current to illuminate a light bulb in a circuit, and the force needed to keep the rod moving is . What happens to the force needed drive the motion of the rod if the light bulb is removed?a. No force is neededb. there is no longer a magnetic force to oppose the motion. c. It is the same as when the bulb is in the circuit. d. A larger force is needed to the keep the rod moving

scientific laws are the result of testing theories and proving them to be facts.

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

cancer risk hope this