A string of fifty 15 ohm Christmas tree light are connected in parallel. One burns out; the rest will stay lit. Calculate the total resistance.

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.