When a man stands near the edge of an empty drainage ditch of depth 2.80 m, he can barely see the boundary between the opposite wall and bottom of the ditch as in figure (a) shown below. the distance from his eyes to the ground is h = 1.82 m. (assume θ = 33.0°.) (a) what is the horizontal distance d from the man to the edge of the drainage ditch? d = m (b) after the drainage ditch is filled with water as in figure (b) shown above, what is the maximum distance x the man can stand from the edge and still see the same boundary?

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

magnets not strong enough

explanation: