Answer:
hope it help u sorry for dirty handwriting
Answer:
both people actually did the same work
Step-by-step explanation:
Work = Force × Distance
The person that climbed the steep spiral staircase used more force but covered a shorter distance. On the other hand, the person that walked up a gentle ramp used less force but covered a longer distance. Since both people reached the same height, the force against gravity was the same.
Answer:
Step-by-step explanation:
The equation of the form

has radius r.
Now your equation is

Hence its radius is 
I think it is B
hope this helps
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