PHYSICS

AT WHAT DISTANCE ABOVE THE SURFACE OF THE EARTH IS THE ACCELERATION DUE TO EARTH'S GRAVITY 0.980M/S² IF THE ACCELERATION DUE TO GRAVITY AT THE SURFACE HAS MAGNITUDE 9.80M/S²

  1. 👍
  2. 👎
  3. 👁
  1. radius of earth = 6378.1 km

    Assuming g is not affected by other heavenly bodies, then Newton's law of gravitation applies:
    g=GMm/r^2=k/r^2 (k=a constant)
    =>
    g'r'^2=gr^2
    r'^2=r^2(g/g')
    r'=r sqrt(g/g')
    =6378.1 sqrt(9.80/0.980)
    = 2.02*10^4 km approx.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    If you weigh 650 N on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 15.0 km ? Take the mass of the sun to be ms = 1.99×10^30 kg, the gravitational

  2. calculus

    (1 pt) The acceleration due to gravity, g, is given by g = (G*M)/(r^2) where M is the mass of the Earth, r is the distance from the center of the Earth, and G is the uniform gravitational constant. (a) Suppose that we change from

  3. PHYSICS

    THE MASS OF VENUS IS 81.5% OF THE EARTH AND ITS RADIUS IS 94.9% THAT OF THE EARTH. A)COMPUTE THE ACCELERATION DUE TO GRAVITY ON THE SURFACE OF VENUS FROM THESE DATA.B)IF A ROCK WEIGHS 75.0N ON EARTH,WHAT WOULD IT WEIGH ON THE

  4. Physics

    If you weigh 670 N on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 15.0 km ? Take the mass of the sun to be ms = 1.99×1030 kg , the gravitational

  1. PHYSICS

    A 5.0-kilogram sphere, starting from rest, falls freely 22 meters in 3.0 seconds near the surface of a planet. Compared to the acceleration due to gravity near Earth’s surface, the acceleration due to gravity near the surface of

  2. Physics & Gravity

    The acceleration due to gravity on the moon is about one-sixth its value on earth. If a baseball reaches a height of 51 m when thrown upward by someone on the earth, what height would it reach when thrown in the same way on the

  3. Physics

    What is the distance from the Earth's center to a point outside the Earth where the gravitational acceleration due to the Earth is 1/20 of its value at the Earth's surface?

  4. Math

    The acceleration due to gravity is inversely proportional to the square of the distance from the centre of Earth. The acceleration due to gravity for a satellite orbiting 7000 km above the centre of Earth is 8.2 m/s^2. a) write a

  1. earth

    a space traveller determines the radius of a planet to be half of earth . After landing on its surface , he finds the acceleration due to gravity to be twice of that of surface of earth. Find the ratio of mass of planet to the

  2. Physics help please

    The space shuttle orbits at a distance of 335 km above the surface of the Earth. What is the gravitational force (in N) on a 1.0 kg sphere inside the space shuttle. Assume that the mass of the Earth is 5.98x1024 kg and the radius

  3. physics

    The acceleration due to gravity on planet X is one fifth that on the surface of the earth. If it takes 3.5 s for an object to fall a certain distance from rest on earth, how long would it take to fall the same distance on planet

  4. Physics

    You are explaining why astronauts feel weightless while orbiting in the space shuttle. Your friends respond that they thought gravity was just a lot weaker up there. Convince them and yourself that it isn't so by calculating the

You can view more similar questions or ask a new question.