Answer:
[tex]T \approx 5s[/tex]
Explanation:
From the question we are told that:
Power [tex]P=686600w Js^{-1}[/tex]
Work [tex]W=3430000 J[/tex]
Generally the equation for Time t is mathematically given by
[tex]T=\frac{Work}{Power}[/tex]
[tex]T=\frac{W}{P}[/tex]
Therefore
[tex]T=\frac{3430000 }{686600}[/tex]
[tex]T=4.996[/tex]
[tex]T \approx 5 s[/tex]