The sun transfers energy to the earth by radiation at a rate of approximately 1.00 kw per square meter of surface.

a. if this energy could be collected and converted to electrical energy with 24 efficiency how large an area (in square kilometers) would be required to collect the electrical energy used by the united states? ( joules per year).

b. if the solar collectors were arranged in a square array, what would be the length of its sides in kilometers and in miles?

with all parts

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c.what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?