A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

fan and medal! PArt A: the sun produces 3.9-10^33 ergs of radiant energy per second. how many ergs of radiant energy does the sun produce in 2.45 - 10^5 seconds? PArt B: which is the more reasonable MEASUREMENT OF THE DISTANCE BETWEEN THE TRACKS on a DVD: 7.4-10^-4mm or 7.4-10^4mm?

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

    Well if you've got 3.9x10^33 erg per second and 2.45x10^5 seconds, then you just multiply the two numbers together to get the total amount of radiant energy. For the second bit, 7.4x10^-4mm is a very very small distance, and 7.4x10^4mm is 74 metres... can you guess which one is the right answer? :P

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

    ok um for the first part don't I add them instead?

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

    Nope. As a simpler example, say you have a car travelling at 10 metres per second, and it travels for 5 seconds. How far does the car travel? 5 x 10 = 50 metres. It's the same principle with this question.

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

    oh ok thanks! :)

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

    No problem :P

  6. 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.