Adriver complains that the brake pedal slowly moves toward the floor when the vehicle is stopped at traffic lights. pumping the pedal temporarily returns the pedal to the proper height. also, the brake fluid has been checked and is at a normal height in the reservoir. technician a says that a bad master cylinder could be the cause of the problem. fluid could be leaking internally in the cylinder. technician b says that a leaking wheel cylinder could be allowing pressure to drop. who is correct? a. a only. b. b only. c. both a and b. d. neither a nor b.

answer; the correct answer is technician a; ///100%good luck

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.