Answer: [tex]6.05\cdot 10^7 J[/tex]
Explanation:
Energy is related to power by:
[tex]E=Pt[/tex]
where P is the power and t is the time. In this problem, we have:
[tex]P=16.8 kW=16800 W[/tex]
[tex]t=1 h=3600 s[/tex]
So, the energy used in one hour is
[tex]E=(16800 W)(3600 s)=6.05\cdot 10^7 J[/tex]
