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Need help setting up question 6U.S annual energy consumption = 1.0 x 10²⁰The energy released by burning 1 kg of coal = 1.6 x 10⁹

Need Help Setting Up Question 6US Annual Energy Consumption 10 X 10The Energy Released By Burning 1 Kg Of Coal 16 X 10 class=

Sagot :

Given:

The energy released by burning 1 kg of coal = 1.6 x 10⁹

And from the table:

U.S annual energy consumption = 1.0 x 10²⁰

So, to find the number of kilograms of coal, we will divide the total energy consumption by the energy released from 1 kg of coal

so,

[tex]\text{1}.0\times10^{20}\div1.6\times10^9=\frac{1\times10^{20}}{1.6\times10^9}=6.25\times10^{10}[/tex]

So, the answer will be:

The number of kilograms of coal = 6.25 x 10¹⁰

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