Question

15000J=1.5×104J how​

Answer 1

$Do \: you \: mean \: 15000J = 1.5 \times {10}^{4} J \: \: ?$

$Answer: \:$

$15000J = 15 \times 1000 J = 1.5 \times 10 \times1000 J \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 1.5 \times 10 \times 10 \times 10 \times 10J \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 1.5 \times {10}^{4} \: J \:$