I need help with my organic Chemistry homework

Determine the mass of fuel required for the expected energy consumption in the united states for the next ten years. energy use per person per year in the united states = 3.5 x 1011joules base calculations on current population of 310,000,000.

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .