physics

posted by .

suppose the moon were held in its orbit not by gravitational interaction with the Earth but by a long, mass-less cable attached to the center of the earth. What would be the tension in the cable?

  • physics -

    What is centripetal force? massmoon*v^2/r

    But I wonder what would hold Earth?

    In fact the moon is not orbiting around Earth,but around a common center of gravity. That probably is too compliated for this thinking, after all, a massless cable almost 200,000 miles is a stretch. Pun intended.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. phy.

    check my understanding please. Larry weighs 300 N at the surface of the earth. what is the weight of the earth in the gravitational field of Larry?
  2. physics

    Suppose that the attraction between the moon and the earth were due to Coulomb forces rather than gravitational force. What would be the magnitude of the charge required if equal but opposite charges resided on both earth and moon?
  3. Physics

    The average distance separating Earth and the Moon (center to center) is 384 000 km. Use the data in Table 7.3 to find the net gravitational force exerted by Earth and the Moon on a 3.00 multiplied by 104 kg spaceship located halfway …
  4. physics help please!

    A spacecraft is on a journey to the moon. At what point, as measured from the center of the earth, does the gravitational force exerted on the spacecraft by the earth balance that exerted by the moon?
  5. physics

    The physics of energy and Earth's moon as a satellite. The moon is an Earth satellite of mass 7.35 x 10^22 kg, whose average distance from the centre of Earth is 3.85 x 10^8 m. a) What is the gravitational potential energy of the moon …
  6. Physics

    The Earth has a mass of 5.97 x10^24 kg and the Moon has a mass of 7.36 x10^22kg. The average distance between the center of the Earth and the center of the moon is 3.84 x10^8m. (a) How far away would the Moon need to be for the magnitude …
  7. physics

    A spacecraft is on a journey to the moon. At what point, as measured from the center of the earth, does the gravitational force exerted on the spacecraft by the earth balance that exerted by the moon?
  8. physics

    Calculate the magnitude of the gravitational force between the Earth and an m = 6.00 kg mass on the surface of the Earth. The distance to the center of the Earth from the surface is 6.37×103 km and the mass of the Earth is 5.98×1024 …
  9. Physics Classical Mechanics

    A planet has a single moon that is solely influenced by the gravitational interaction between the two bodies. We will assume that the moon is moving in a circular orbit around the planet and that the moon travels with a constant speed …
  10. Physics

    In a repair shop a truck engine that has mass 429 kg is held in place by four light cables (Figure 1) . Cable A is horizontal, cables B and D are vertical, and cable C makes an angle of 37.1∘ with a vertical wall. Tension in …

More Similar Questions