Recent content by cyugsi2

  1. C

    Relative momentum, Rest Energy, Kinetic energy and speed of a proton

    1. a) A relativistic proton has a momentum of 10x10^-18 kg*m/s. The rest energy of a proton is 0.150nJ. The kinetic energy of the protoon b) In this situation the speed of the proton is? 2. E=MC^2 P= MV/sqroot(1-(v^2/c^2) K=[MC^2/ sqroot(1-v^2/c^2)]-[mc^2] 3. The algebra in this problem...
  2. C

    The time an object first passes a point in simple harmonic motine

    thanks but i just used the inverse cos. (inverse cos(x/a)) / (2∏/2.4) = t
  3. C

    The time an object first passes a point in simple harmonic motine

    Never mind I solved the problem I just needed to change my calculator from degree to radiants
  4. C

    The time an object first passes a point in simple harmonic motine

    1. The position of a mass oscillating on a spring is given by x=(.078m)cos[2∏t/(.68s)] when is the mass first at the position x=-.078m x=A cos(2πt/T). 3. the frequency is 1.47. I really don't know were to go from here. can anyone help me?