A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Just want to make sure i am doing this problem correctly, or if i am way off.. Imagine that you place a cork measuring 1.3cm x 5.5cm x 3.0cm in a pan of water and on top of the cork you place a small cube of lead measuring 1.15cm on each edge. The density of the cork is 0.235 g/cm^3 and the density of the lead is 11.35 g/cm^3. Will the combination of cork plus lead float or sink?

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1441237294565:dw|

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Lead ~ 1.15cm x 1.15cm x 1.15cm

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    First I got the Volume of each Volume Cork = 21.45cm^3 Volume Lead = 1.52cm^3 Then i got the mass of each Mass Cork = 5.04g Mass Lead = 17.252g I don't know what do do now though.

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Total mass = 22.292

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    If it floats, the density is less than 1.00g/mL or 1.00g/cm^3 If it sinks, the density is greater than 1.00g/mL or 1.00g/cm^3

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    You were correct on combining the masses, now combine the volume to get its combined density.

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So would the combined density be .97g/cm^3? this is with the long calculations Because if you do just the densities combined it = 11.585.

  8. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Because water density is usually at 1.00g/ml

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yea, I got that also.

  10. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok thanks, so it would float?

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Nope, you not add it because the question is asking will the "combination" of both sink? Even if lead sinks, the cork would not.

  12. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes, it would.

  13. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait what?

  14. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    It would float because with the calculations the total density is less that 1g/ml

  15. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    The lead is not dense enough to make the lead able to sink.

  16. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Savannah_Lynn13 ok thanks, so it would float? Yes, it would.

  17. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you.

  18. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Savannah_Lynn13 So would the combined density be .97g/cm^3? this is with the long calculations Because if you do just the densities combined it = 11.585. Nope, you not add it because the question is asking will the "combination" of both sink? Even if lead sinks, the cork would not.

  19. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    No problem!

  20. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Nice work attempting to solve the problem.

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

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.