Recent content by felipenavarro

  1. F

    Tricky collision problem

    your right,! i didnt thought about a low speed.
  2. F

    Tricky collision problem

    with conservation of momentum it is answer e. but isnt the reasoning i said before correct?
  3. F

    Tricky collision problem

    Homework Statement a small ball of mass "m" is traveling with an initial velocity v in the positive x direction. it collides with a larger vall of mass M that is initially at rest. after the collision, the smaller ball is at rest. What is the final velocity, V, of the larger ball? options...
  4. F

    How to find angle whit system of equations

    now i got it, great explenation! thanks
  5. F

    How to find angle whit system of equations

    sorry what is sy(changes in y?) , and yes that is where i am having trouble. i end up with cosines and sines and cant unite them or cancel them or anithyng
  6. F

    How to find angle whit system of equations

    Homework Statement i kick a ball with an initial velocity of 18m/s. there is a wall at 8m that has a height of 1.5 meters. whith what angle should i kick the ball so that it bearly passes the wall? Homework Equations first equation: hf= 1/2gt^2+vit+hi second equation: V=Δx/t The...
  7. F

    Binding enregy per nucleon

    yea haha, thanks anyway
  8. F

    Binding enregy per nucleon

    oh, it makes sence now, thanks!
  9. F

    Binding enregy per nucleon

    Homework Statement Find the binding energy per nucleon of 238 92 U in MeV Homework Equations ΔM= ideal mass - atomic mass Ebind= ΔM * 931.5 The Attempt at a Solution first i found the diference in mass from ideal weight and atomich weight which is 1.98499. then i multiplied...
  10. F

    Transistor gain problem

    ah! got to read with more attention! thanks !
  11. F

    Transistor gain problem

    oh! i dont know why it changed to ma the original problem uses mu i still need help with the problem! haha
  12. F

    Transistor gain problem

    well 1 million in an amp and 100,000 in .1 amps, so is this the answer for question b? that would be 5 transistors of ten in a row. but dont i have to get the same answer (as a total amplification) as in question a?
  13. F

    Transistor gain problem

    Homework Statement If a transistor circuit is used to amplify a 2.5 mA signal to at least 0.1 A, what must be the minimum gain of the transistor circuit? b. Assume the amplifier consists of a number of transistors in series, each with a gain of 10. How many transistors are needed in...
  14. F

    The Higgs field and gravity

    oh! its clear now, thanks!
  15. F

    The Higgs field and gravity

    Hi can someone explain to me how the higgs field creates gravity, or how is it related to it? I mean, if the higgs field is responsible for mass, then it should be somewhat responsible for gravity. Right?
Top