physics

posted by .

1. What did Newton conclude about the force that pulls apples to the ground and the force that holds the moon in orbit?
2. What does the very small value of the gravitational constant G (in standard units) tell us about the strength of gravitational forces?
3. We can think of a force field as a kind of extended aura that surrounds a body, spreading its influence to affect things. As later chapters will show, an electric field affects electric charges, and a magnetic field affects magnetic poles. What does a gravitational field affect? (Select all that apply.)
(charge, magnetism, mass or none of these)
4. Which is correct -- to say that a distant rocket interacts with the mass of the Earth, or to say that it interacts with the gravitational field of the Earth? (Select all that apply.)
(distant rocket interacts with Earth's mass, both of these, or distant rocket interacts with Earth's gravitational field)

  • physics -

    The answer to question 3 is mass, but I don't know any more of them.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    Given that the distancef rom Earth to the Moon is 3.8 x 10^8 m, that the Moon takes 27 days to orbit Earth, and that the mass of the Moon is 7.4 x 10^22 kg, what is the acceleration of the Moon and the size of the attractive force …
  2. Physics

    1.Two balls, each with a mass of 0.871 kg, exert a gravitational force of 8.23 × 10−11 N on each other. How far apart are the balls?
  3. physics

    Which of the following correctly describe the gravitational attraction between Earth and the Moon?
  4. Physics

    Mars has a mass of about 6.59 × 1023 kg, and its moon Phobos has a mass of about 9.4 × 1015 kg. If the magnitude of the gravitational force between the two bodies is 4.35 × 1015 N, how far apart are Mars and Phobos?
  5. Physics

    Calculate the percentage of Earth’s gravitational force on the ISS astronauts while orbiting at an altitude of 248 miles above Earth’s surface. To do this, compare the gravitational force on an orbiting astronaut to the force on …
  6. physics

    There is a typo in this question. Ignore the ”cdot” in the units for G. A satellite is in a circular orbit just above the surface of the Moon. What is the satellite’s acceleration?
  7. Physics

    The earth has about 80 times the mass of the earth’s moon. The gravitational force exerted on the moon by the earth has what relation to the gravitational force exerted on the earth by the moon?
  8. Physics

    The Earth is about 81 times more massive than the moon. During the gravitational interation of the Earth and the Moon, the magnitude of the gravitational force acting on the Earth _______ the gravitational force acting on the Moon. …
  9. Physics

    Many astronomers argue that the Earth and Moon should be considered a double planet,since the gravitational force by the sun on the Moon is approximately as big as that by the Earth on the moon.Using the data below for the Earth and …
  10. Physics

    I am really struggling with these 2 questions. Please help! 1)Mars has a mass of about 6.91 × 1023 kg, and its moon Phobos has a mass of about 9.8 × 1015 kg. If the magnitude of the gravitational force between the two bodies is 4.87 …

More Similar Questions