Your light truck weighs 3,500 kg. you drive up a slope that is 0.5 km long. at the top of the slope you are 200m higher in elevation than when you start ed. assuming no friction what force has your engine exerted to drive up this slope. (a) 7000n (b) 12000n (c)14000 (d)20000n

What correctly describes the relationship between the earth and the sun

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.