Which change to an object would reduce its potential energy by half? A. Increasing its height to twice its original value
OB. Reducing its mass to one-quarter of its original value
O C. Increasing its mass to twice its original value
O D. Reducing its height to one-half of its original value

Asimply means that over time there was some sort of change.

15. one purpose of the tread pattern on a tire is to a reduce tire wear. b. reduce traction c. allow water to flow away from the tire. d. look impressive.

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?