Answer:
the answer is sea stacks and arches
The value of the swimmer's power output is calculated by dividing the work done by the time it took for the work to be completed. From the given in this item,
P = 3560 J/ 55 s = 64.73 W
Rounding off to two significant figures will give us 65 W.
Answer:
3.0m
Explanation:
Because the image distance(v) =object distance(u)
v+u=1.5+1.5=3.0m
The pressure can be solved using the following formula:
P = mg / A
Where: P = pressure
mg = mass * gravity = W = 10.5 N
A = l*w
Solving for A (maximum):
A = 8*3
A = 24 sq. cm
Solving for A (minimum):
A = 15*8
A = 120 sq. cm
Substituting into the first equation:
Pmax = 10.5 N / 24 sq.cm
Pmax = 0.4375 Pa
Pmin = 10.5 N / 120 sq.cm
<span>Pmin = 0.0875 Pa</span>