A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

anyone can help me with this conversion..

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

    3.A certain fuel-efficient hybrid car gets gasoline mileage of 55.0 mpg (miles per gallon). (a) If you are driving this car in Europe and want to compare its mileage with that of other European cars, express this mileage in km/L (L = liter). Use the conversion factors in Appendix E. (b) If this car's gas tank holds 45 L, how many tanks of gas will you use to drive 1500 km? 4.In the fall of 2002, a group of scientists at Los Alamos National Laboratory determined that the critical mass of neptunium-237 is about 60 kg. The critical mass of a fissionable material is the minimum amount that must be brought together to start a chain reaction. Neptunium-237 has a density of 19.5g/cm^3. What would be the radius, r, of a sphere of neptunium-237 that has a critical mass? 5.With a wooden ruler you measure the length of a rectangular piece of sheet metal to be 12 mm. you use a micrometer caliper to measure the width of the rectangle and obtain the value 5.98 mm. Give your answers to the following questions to the correct number of significant figures: a. What is the area of the rectangle? b. What is the ratio of the rectangle’s width to its length? c. What is the perimeter of the rectangle? d. What is the difference between the length and width? e. What is the ratio of the length to the width?

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

    @Michele_Laino can you help me here ^^

  3. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    exercise #4 the relationship between density, volume and mass, is: \[\Large \delta = \frac{m}{V}\] where \delta is density. Now, please, write the inverse formula for volume V

  4. arindameducationusc
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Question 5,a) 12*5.98 b) 5.98/12 c) 12+12+5.98+5.98 d)12-5.98 e)12/5.98

  5. arindameducationusc
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @ggg123 If you liked my response don't forget to fan and medal. Thank you.

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

    can you show me the solutions @arindameducationusc

  7. arindameducationusc
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Question 4, sorry. I could not do.... @Michele_Laino Here, Radius is being asked? What could possibly be the relation?

  8. arindameducationusc
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @ggg123 sorry I tried Question 4, but could not.....

  9. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    from my previous formula, we have: \[V = \frac{m}{\delta }\] now, the volume of a sphere, whose radius is r, is: \[V = \frac{{4\pi }}{3}{r^3}\] so, after a substitution, we get: \[\frac{{4\pi }}{3}{r^3} = \frac{m}{\delta }\] hence, solving for r, we can write: \[r = \sqrt[3]{{\frac{3}{{4\pi }}\frac{m}{\delta }}}\] substituting your numeric data, we get the requested radius

  10. arindameducationusc
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Nice @Michele_Laino

  11. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    thanks!! @arindameducationusc

  12. 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.