Solar Energy is the answer to the question tell me if i`m wrong
Answer:
I think B.The outer,middle and inner ear
Answer:
19.21ms-¹
Explanation:
that is the solution above
There are no true statements at all on the list of choices
that you included with the question.
Answer:
(a) 625 ft lb
(b) 468.75 ft lb
Explanation:
Work=Force* Distance
(a)
Force=wl/2 where w is uniformly distributed load of 0.5 lb/ft and l is the length of the rope
Force=0.5*50/2=12.5
Work=12.5*50=625 ft lb
(b)
Assuming that the weight of the rope is concentrated in two places, half is 12.5 feet down and the other half is 37.5 feet down. The center of mass of the top half is 12.5 feet down. The weight of the top half is 12.5
Work=work on top half + work on bottom half
Work on top half=12.5*(0.5*25)=156.25 ft lb
work on bottom half=12.5*(0.5*50)=312.5 ft lb
Total work=156.25+312.5=468.75 ft lb