Biology, Chemistry and Physics
Answer: <u>Element </u>
Explanation:
A chemical element is a substance which contain only one type of atom and it may be in the form solid, liquid and gas. On more the smallest particle of element is the atom.
Heat is most closely related to THERMAL energy.
Work done = Mass * displacement
W = 50 * 5 = 250 watts
In short, Your Answer would be 250 watts
Hope this helps!