As he climbs the hill, a marathoner runs 5.0 miles/hour for 10.0 seconds. What distance does he cover? Present your answer in m/s. (1609.3 meters -
1 mile & 1 hr = 3600 s) *

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

massxgravity x heght=weightxheight= pe

4900=490xh

h=10

it doesn't. it was imagined up in the middle ages.