Adc generator is similar to an ac generator except that in a. dc generators, slip rings produce direct current. b. dc generators, commutators produce direct current. c. ac generators, commutators produce alternating current. d. ac generators, no commutators or slip rings are used. it is b

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j