Answer:
Option B ([tex]1.28\times 10^4 \ J[/tex]) is the right alternative.
Explanation:
Given:
⇒ [tex]3.06\times 10^3 \ Cal[/tex]
By unit conversation,
[tex]1 \ Cal = 4.2 \ J[/tex]
then,
⇒ [tex]3.06\times 10^3 \ Cal = 3.06\times 10^3\times 4.2[/tex]
[tex]=12.852\times 10^3[/tex]
[tex]=1.28\times 10^4 \ J[/tex]
Thus the above is the right answer.
