anonymous
  • anonymous
Determine the change in thermal energy of a 30 kg wooden bench that warms from 15oC to 25oC if the specific heat of wood is 1,700 J/(kgoC). Show formula and work.
Physics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Is it ? Q = m(Tf - Ti)C Q = 30kg(15C-25C)1,700 J/(kgC) Q = -510,000 ?
JamesJ
  • JamesJ
Doesn't the energy have to go up?
anonymous
  • anonymous
Yeah ?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

JamesJ
  • JamesJ
So the answer should be positive. Check your signs.
anonymous
  • anonymous
It should be 510,000 J ?
JamesJ
  • JamesJ
Yes. Tf = 25 and Ti = 15, hence Tf - Ti = +10, not -10
JamesJ
  • JamesJ
Always sense check your answers in Physics. Ask yourself what the answer means and whether it is consistent with what you're trying to do.
anonymous
  • anonymous
Thanks again . :)

Looking for something else?

Not the answer you are looking for? Search for more explanations.