physics

posted by .

Hint: for part I use G = 6.67 times 10 to the
negative 11. for part II, you don’t need to
do the full calculation, you can just use your
knowledge of how force of gravity depends on
mass and separation distance.
Compare the gravitational force on a 49 kg
mass at the surface of the Earth (with ra-
dius 6.4 × 106 m and mass 6 × 1024 kg) with
that on the surface of the Moon with mass
1
81.3
ME and radius 0.27RE.
What is the force on the Earth?
Answer in units of N.

  • physics -

    Your 1 and 81.3 makes no sense to me.

  • physics -

    oh sorry it means 1/81.3

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics ( just need a lil help multiplying

    Calculate the force of gravity between a 2.50 kg newborn baby and a 80.0 kg doctor standing 0.250 m away. G = 6.67 E -11 N*m2/kg2 My work Fg = (Gm1 Gm2) /d^2 m1=2.50 kg m2=80.0 kg d=0.250 m g=6.67 E -11 N*m2/kg2 Fg = (Gm1 Gm2) /d^2 …
  2. physics

    we just did an practical on newton's second law and we just have to do a report on it.... basically there are two parts to it, first part is when the overall mass of the system remains constant and the second part is when the force …
  3. BOBPURSLEY or anyone

    h t t p : / / w w w . j i s k h a .c o m / d i s p l a y . c g i ?
  4. physics

    A baby elephant is stuck in a mud hole. To help pull it out, game keepers use a rope to apply a force FA, as part a of the drawing shows. By itself, however, force FA is insufficient. Therefore, two additional forces FB and FC are …
  5. physics

    Part 1 A 15.6 kg block is dragged over a rough, hor- izontal surface by a constant force of 72.2 N acting at an angle of angle 34.8 above the horizontal. The block is displaced 24.6 m and the coefficient of kinetic friction is 0.234. …
  6. Physics

    A baby elephant is stuck in a mud hole. To help pull it out, game keepers use a rope to apply a force FA, as part a of the drawing shows. By itself, however, force FA is insufficient. Therefore, two additional forces FB and FC are …
  7. physics

    Three blocks are in contact with each other on a frictionless horizontal surface. A 696 N horizontal force is applied to the block with mass of 4.7 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s 2 . 4.7 …
  8. Physics

    Calculate the force of gravity between a newborn baby of mass 4 kg and the obstetrician of mass 75 kg, who is 0.5 m from the baby. N Which exerts more gravitational force on the baby, Mars or the obstetrician, given that Mars has a …
  9. physics

    the space shuttle typically orbits 400 km above the earths surface. The earth has a mass of 5.98 * 10^24 kg and a radius of 6380km. A) How much would a 2000 kg part for the space station weigh when it has been lifted to that orbit …
  10. Physics for Technology

    I have been out of school 27 years; no Algebra or Trigonometry training: only remedial math. This class is part of a Diploma program, no placement test required - I am out of my depth. I had a tutor for an hour last Tues., with another …

More Similar Questions