Recent content by MathMajor

  1. M

    Given mass, distance, and time, calculate power

    I agree. Thanks!
  2. M

    Given mass, distance, and time, calculate power

    Ok, so you are sure the correct answer is 392 Watts? I feel like I will be shunned for going against the professor, but I have to go with my gut on this one. Thanks!
  3. M

    Given mass, distance, and time, calculate power

    Homework Statement How much power does a weightlifter expend when lifting a 50kg barbell a distance of 1.2m in a time interval of 1.5s? Homework Equations Power=work done/time interval (in Newton meters per second or Watts) Work=Fd (in Newton meters or Joules) The Attempt at a...
  4. M

    Proving Equivalence of Sets - One-to-One and Onto Function

    Homework Statement Hi, new to the Physics Forum and desperately need some help with a math analysis problem... Prove that {x|x>1} and {x|0<x<1} are equivalent sets by writing a function and show that it is one-to-one and onto. Homework Equations The Attempt at a Solution