Which of the following is a difference between radiation and conduction? A Radiation usually causes the temperature of a materialtoriserapidly,.BContact between the heat source and the material being heated is required forradiation to occur, but contactis not requiredfor conductionto occur. CContact between the heat source and the material being heated is required forconduction to occur, but contactis not requiredfor radiationto occur.,.

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

Which one of the following represents the reduced forms of the two major electron carriers? nadh and fadh2 nad+ and fadh2 nad+ and fad nadh and fad

Language is not the only way that humans communicate. describe how we use sound, touch, chemicals, and sight to communicate. need answer asap