1. NASA launched a 550kg satellite into space. Its engines have a thrust of 8000N.

a) What is the downward froce of gravity acting on the rocket at blast off? (is it 5390N?)
b) What is the acceleration of the rocket at blast-off? (Hint: Fine Fnet first)

2. A planet has a mass of 6.0x10^23kg. The force of gravity acting on a 2kg surface of the planet is 960N. What is the radius of the planet?

  1. 👍
  2. 👎
  3. 👁
  1. 1a correct
    b. fnet=ma
    8000-5390=ma solve for a

    2. 960=G*Mp*2/r^2 solve for r.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    Satellite A is orbiting earth at an altitude of 500 km and satellite B is orbiting 800 km above the surface. How does the velocity of satellite a compare to the velocity of satellite b? A) it depends on the masses of the

  2. Physics

    A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.1 105 N. In being launched from rest it moves through a distance of 87 m and has a

  3. Physics

    Two satellites are in circular orbits around the earth. The orbit for satellite A is at a height of 511 km above the earth's surface, while that for satellite B is at a height of 895 km. Find the orbital speed for satellite A and

  4. science

    Why do the stars and the constellations in the sky appear to change positions throughout the night and throughout the year?(1 point) A.The stars and constellation have tilted and are also moving in space. B.The location angle of

  1. Physics

    In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016 and a radius of 8.50 . What is the speed of a satellite orbiting 4.70km above the surface? What is the escape

  2. College Physics

    The space probe Deep Space 1 was launched on October 24, 1998. Its mass was 474 kg. The goal of the mission was to test a new kind of engine called an ion propulsion drive. This engine generated only a weak thrust, but it could do

  3. Math

    A satellite is launched into orbit 200 kilometers above the Earth.The orbital velocity of a satellite is given by the formula v=√GmE/r, where v is the velocity in meters per second, G is a given constant, mE is the mass of

  4. physics

    On July 15, 2004, NASA launched the Aura spacecraft to study the earth's climate and atmosphere. This satellite was injected into an orbit 705 {\rm km} above the earth's surface, and we shall assume a circular orbit. How many

  1. physics

    The space shuttle has a mass of 2.0 × 106 kg. At lift-off the engines generate an upward force of 30 × 106 N. a. What is the weight of the shuttle? b. What is the acceleration of the shuttle when launched? c. The average

  2. language arts

    Which best states how information presented in team moon and the NASA article are different? A. the NASA article is about the Apollo 11 mission, while the team moon is mostly about "space race">>> B. the team moon article captures

  3. physics

    The space shuttle has a total mass of 2.0 x 10^6 kg. At liftoff, the engines exert a total thrust of 35 x 10^6 N. Calculate the shuttle's weight. Calculate the shuttle's acceleration at liftoff. If the acceleration averages 13

  4. Physics

    An astronaut, of total mass 85.0 kg including her suit, stands on a spherical satellite of mass 375 kg, both at rest relative to a nearby space station. She jumps at a speed of -2.56 m/s directly away from the satellite, as

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