i can't find the information on google anywhere maybe i'm looking in the wrong places? pedia has no answers for me, can someone help please:)thank you :) xxx
If you're speaking of the mechanical work done on the fire hydrant, the answer is (C), 0.0 J. Work is the integral of force times displacement, or integral (F dx). Since the displacement is zero, the work done on the hydrant is zero. Of course, chemical energy is expended by your body to maintain muscle contraction for that length of time, but that's irrelevant to the work done on the hydrant.
yeah it is true that hands get curled due to a process called post-burn contracture,but it depends on many factors and to the extent of burns. in fact this can be prevented by a SOLID physiotherapy if started early and followed religiously!! all the best
