Recent content by itachipower

  1. I

    Undergrad Angular acceleration of a planet

    What if it was a ball attached to a string? How would that be different from a binary planet-star system?
  2. I

    Undergrad Angular acceleration of a planet

    So my teacher said that an object farther from the center experiences greater centripetal acceleration. How is that possible? let's say we have a sun + planet system. F = GmM/r^2 so when the planet's r is greater, wouldn't the force become lower compared to the planet being closer to the sun?
    • itachipower
    • Thread
    • Acceleration Angular Angular acceleration Planet
    • Replies: 5
    • Forum: Mechanics
  3. I

    How many columns are needed to support the roof of an underground tunnel?

    Oh okay. I got it! Thanks :)
  4. I

    High School Potential energy and kinetic energy

    Oh okay! Thanks!
  5. I

    High School Potential energy and kinetic energy

    So today in class we were talking about gravity and my professor said that generally KE = -.5PE And so TME = .5PE I don't understand how that works.
    • itachipower
    • Thread
    • Energy Kinetic Kinetic energy Potential Potential energy
    • Replies: 2
    • Forum: Mechanics
  6. I

    How many columns are needed to support the roof of an underground tunnel?

    Homework Statement A tunnel of length L = 151 m, height H = 7.7 m high, and width 6.2 m (with a flat roof) is to be constructed at distance d = 60 m beneath the ground. The tunnel roof is to be supported entirely by square steel columns, each with a cross-sectional area of 960 cm2. The mass of...
  7. I

    What Causes Incorrect Section Placement in Static Equilibrium and Torque?

    Thank you!
  8. I

    What Causes Incorrect Section Placement in Static Equilibrium and Torque?

    Homework Statement I have been trying to solve this problem for a while now and I can't figure out what I am doing wrong... Here is the problem: In the figure below, a horizontal scaffold, of length 2.00 m and uniform mass 50.0 kg, is suspended from a building by two cables. The...
  9. I

    What Causes Incorrect Section Placement in Static Equilibrium and Torque?

    wrong section