Recent content by Iwanttolearn7

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    Finding Lambda 4 for mechanical harmonics

    OH my gosh I'm such a dork. Lambda4= 2L/4, I figured out the pattern all by my lonesome. Geez, I'm bad at physics!
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    Finding Lambda 4 for mechanical harmonics

    Homework Statement I am trying to find the equation for lambda four for mechanical harmonics. Homework Equations I know that lambda1=2L, lambda2=L, lambda3=2L/3, but neither google nor my textbook have the equation for lambda4! The Attempt at a Solution I have searched my physics...
  3. I

    Using area of pv graph to find work

    Thank you very much! I also finally got to class and asked my Professor about it, and he said that I was supposed to use the AVERAGE of p and v to find the volume, which was my main problem. I was trying to use both p and both v points to find the volume when I should have been averaging them...
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    Using area of pv graph to find work

    I really wish I had a picture of the graph. It is like no other on google relating to physics. Trust me, I tried. There are only two points on the graph. My description, including the coordinates, will draw out the correct graph, but I realize you may not have the time to draw it out. I...
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    What Is the Loss of Mechanical Energy in a Car Collision?

    Ok, I get it, thank you very much!
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    Using area of pv graph to find work

    Homework Statement An ideal graph is shown in a p-v diagram which looks like one small rectangle inside one large rectangle, with point one on the top right hand corner of the large rectangle leading negatively down to the right hand corner of the small rectangle. The points of the...
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    What Is the Loss of Mechanical Energy in a Car Collision?

    I apologize, I'm new to this. I don't understand what you mean by 20/3, which is not part of any of the equations. Should it be? But you are so right about the rounding! Thank you! I was going crazy trying to figure it out: Kf = 1/2(12000)(6.66666667)^2 + 1/2(6000)(6.66666667)^2 =...
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    What Is the Loss of Mechanical Energy in a Car Collision?

    So would that be: Ki= 1/2(12000)(10)^2 + 1/2 (6000)(0)^2 = 600,000 + 0 = 600,000 Kf-Ki= 404010-600,000 = -195990, still incorrect. :(
  9. I

    What Is the Loss of Mechanical Energy in a Car Collision?

    Thank you for replying! The 6000 kg car is at rest.
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    What Is the Loss of Mechanical Energy in a Car Collision?

    Homework Statement A 12000 kg car traveling at 10 m/s strikes and couples with a 6000 kg car at rest. What is the loss of mechanical energy in the collision? Answer is 200,000 J. Homework Equations I want to know HOW to arrive at the correct answer above. The Attempt at a...
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