Question

The U.S. annual energy consumption is roughly 1 x 1020 joules per a year. If there are 350,000,000 people in the U.S., express this as per person per second. Round to the hundredths. (hint: start by finding out how much energy one person uses per year.)

Answer 1

Answer with Step-by-step explanation:

Given the total energy consumption for all of the population is

`E=1* 10^(20)Joules`

Thus energy consumed by each person per year can be obtained by dividing the total energy consumed by the total population Thus we get

`E_(per\cdot person)=(1* 10^(20))/(350* 10^(6))\\\\E_(per\cdot person)=28.57* 10^(10)Joules/Year`

Now the energy consumed in each second assuming that there are 365 days in each year equals

`E_(second)=(28.57* 10^(10))/(365* 24* 3600)\\\\E_(second)=9059.49Joules`