Recent content by OierL

  1. O

    What is the speed of each particle?

    Homework Statement Both m1 and m2 (m1=2m2) masses can slide without friction over parallel and rigid bars that are placed at a distance d from each other. A spring with elastic constant k and with zero natural length connects both masses. The system is placed on a table. The system is released...
  2. O

    What is the period of the second planet in this exercise?

    You are right! If I do the exercise with 10^8 s the result coincides with e. Thank you very much!
  3. O

    What is the period of the second planet in this exercise?

    Homework Statement In a distant galaxy, a planet orbits its sun at a distance of m with a period of 108 s. A second planet orbits the same sun at a distance of m. What is the period of the second planet? Select one: a. s b. s c. s d. s e. Homework Equations T^2=constant * r^3 The...
  4. O

    What Torque Is Required to Raise a Water Bucket from a Well?

    Ok thank you! Now I'll have to think which of the solutions choose, since my result is different from the others hahaha.
  5. O

    What Torque Is Required to Raise a Water Bucket from a Well?

    Homework Statement Water is drawn from a well in a bucket tied to the end of a rope whose other end wraps around a cylinder of mass 50 kg and diameter 25 cm. As you turn this cylinder with a crank, the rope raises the bucket. If the mass of a bucket of water is 20 kg, what torque must you apply...