Recent content by ecogreen

  1. E

    What is the angle between the directions of motion of the helium atom

    Homework Statement Question 1 An alpha particle traveling at velocity u makes an oblique elastic collision with a helium atom moving with a velocity which is negligible compared to u. After the collision the alpha particle moves in the direction inclined at 30 degrees to its initial direction...
  2. E

    Ratio of Momentum of m1 to m2: A, B, C or D?

    Homework Statement Two masses m1 and m2 have the same kinetic energy. What is the ratio of momentum of m1 to m2 This is an objective question A. m1 / m2 B. m2/ m1 C. m1^2 / m2^2 D. Square root of (m1/m2)