Superman, it is said, is able to leap over tall buildings with a single bound. Suppose he bounds upward with an initial velocity of 400 m/s (faster than a speeding bullet) at an angle of 80° from the horizontal. a) How tall a building can he leap over? b) How far from his starting point will he land?

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.