How many drops of water are in the ocean on earth? (The ocean covers about of the earth's surface and is about deep on average). Earth's diameter is and assumes the radius of the drop-in ocean is .
For unlimited access to Homework Help, a Homework+ subscription is required.
Seawater contans 3 mg of uranium per cubic meter,
(a) Given that the average depth is about 4 km and water covers two thirds of Earth's surface, estimate the amount of uranium dissolved in the ocean.
(b) Estimate how long this uranium could supply the world's energy needs at the current usage of .
(c) Where does the dissolved uranium come from? Is it a renewable energy source? Can uranium from the ocean satisfy our energy requirements? Discuss. Note: Breeder reactors increase the efficiency of nuclear fuel use by approximately two orders of magnitude.
Earth's mass is and its radius is , what is the average mass density of Earth? The density of the rocks comprising Earth's outermost layer (its "crust") ranges from 2,000 to . Based on your answer, what can you conclude about the material deep inside Earth's interior?
Consider a point in the ocean about 8.00kg deep. The pressure atthat point is huge, about 8.28 X 10^7 N/m^2. Calculate the changein volume of 1.00m^3 of water carried from teh surface to thispoint in the ocean.
