How should the student modify the setup to investigate how a motor works? A. Attach a crank or use a student finger to force the coil of wire to rotate.

B. Remove the magnet from the model.

C. Place an iron nail inside the coil of wire.

D. Replace the lamp with a battery.

Find the vertex(use the completing the square method), findthe x- and y-intercepts, and sketch the graph offunction. y = 2x2 + 4x - 1

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?