Since the moon is constantly attracted toward the earth by the gravitational interaction, why doesn’t it crash into the earth?

Q: A tetherball has a mass of 0.4kg and is attached to a string of length L=1.5 m. The string is…

A: mass = 0.4 kg L = 1.5 m θ = 58ow = 3.5 rad/s

Q: A satellite experiences a gravitational force of magnitude F on the surface of the earth. The radius…

A: Express the gravitational force on the satellite at the earth's surface. F=mg -----(1) Here, m is…

Q: If distance between the object is doubled, then the gravitational force of attraction becomes

A:

Q: What would be the minimum Earth-Moon distance at which the center-of-mass of the Earth-Moon system…

A: Mass of earth (M) = 6×1024 kg Mass of moon (m) = 7.35×1022 kg Radius of earth (R) = 6400 km =…

Q: If there is an inward force acting upon an earth orbiting satellite, then why doesn't the satellite…

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Q: When will you attract the sun more: today at noon, or tonight at midnight? Explain.

A: Force of attraction on Sun

Q: Two spheres of different mass and identical radius are dropped from rest above the surface of the…

A: At a given location on the Earth surface and in the absence of air resistance, all objects fall with…

Q: 20.Let planet A have a mass of 5.44 x 1045 kg and planet B have a mass of 2.77 x 1033 kg. If they…

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Q: Consider the gravitational attraction between the Earth and the Moon. Which pulls harder: the Earth…

A: Gravitational acceleration is the acceleration of any object when its made to free fall in vacuum or…

Q: Geostationary satellites are satellites which are orbiting the Earth above the equator and make one…

A: a)    The required orbital radius is, b) The required orbital speed is,

Q: A mountain climber’s weight is slightly less on the top of a tall mountain than at the base, though…

A:

Q: To place a communications satellite into a geosynchronous orbit (see Prob. 12.80) at an altitude of…

A: (a) Velocity of the satellite in a circular orbit at A

Q: Why is more fuel required for a spacecraft to travel from the Earth to the Moon than to return from…

A: More fuel required for a spacecraft to travel from the Earth to the Moon than to return from the…

Q: Two objects attract each other with a gravitational force of magnitude 9.30  10-9 N when separated…

A: Given data: Two objects attract each other with a gravitational force of magnitude is, F = 9.30…

Q: The mass of the moon is 1/80 of the mass of the earth and corresponding radius is 4 of the earth.…

A: Given data: Mass of moon is, m=180×M                (M denotes the mass of earth) Radius of moon is,…

Q: You drop a massive iron ball from rest near the surface of a Jupiter and the ball starts to fall…

A: Initial speed of the ball, u = 0 m/s Acceleration due to gravity on Jupiter, a = 24 m/s2 Time, t = 2…

Q: At what height h above the earth will a satellite moving in a circular orbit half the period of the…

A: Given, Mass of the earth M = 5.97*1024 Kg Time Period of earth rotation T = 24 hrs

Q: A 400 kg satellite has been placed in a circular orbit 1500 km above the surface of the earth. The…

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Q: ed required for a satellite moving in a circular orbit 550.0 km above the surface of the Earth.…

A: Given:- A satellite moving in a circular orbit = 550 km above the earth surface  mEarth = 5.98 ×…

Q: satellite (m=7420 kg) with an elliptical orbit has a speed of 2820 m/s at the apogee and 8450 m/s at…

A: Given data uP=8450 m/suA=2820 m/sm=7420 kg

Q: Two objects attract each other with a gravitational force of magnitude 9.80  10-9 N when separated…

A:

Q: Since the Moon is gravitationally attracted to earth, why doesn't it simply crash into Earth?

A: The moon does not fall on the earth because:

Q: Consider a spacecraft in an elliptical orbit around theearth. At the low point, or perigee, of its…

A: In astrophysics, Kepler’s third law of planetary motion has described the relationship between the…

Q: is preparing to dock The satellite is in a circular orbit 800 km above the Earth's surface, where…

A: The expression to determine the speed of the satellite will be,…

Q: Astudent measures the gravitational force on a satellite in a circular orbit moving around Earth to…

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Q: A satellite in an elliptical orbit has a speed of 9.00 km>s when it is at its closest approachto…

A:

Q: if the moon's distance were increased from the earth, would the gravitational force increase or…

A: Let the mass of moon = m Let the mass of earth = M Let the initial distance between earth and moon =…

Q: ss of the earth is 81% the m. of the earth and the moon is - is the centre of mass of th km km km sm…

A: Apply formula of centre of mass keeping earth centre as origin

Q: The geostationary orbit is a unique circular orbit above the equator of a planet, for which the…

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Q: A planet has a small moon orbiting around it in a circular orbit. The moon has a constant tangential…

A: Ginen  Mass of planet M=4×1022Kg Distance between planet and it's moon R=5×106m Assume mass of moon…

Q: Assuming a successful man-made satellite rotates around the earth at a rate of 5.2 rev in 9.4 days.…

A: Given in question:  Earth rotates 5.2 rev in 9.4 days                                  Orbital…

Q: Consider an earth satellite moving with a speed 8200 m/s at perigee which is 340 km above the…

A: Given data The speed at perigee is VP =8200 m/s The distance above the surface is P =340 km The…

Q: Just after vertical launch from Earth surface, the space shuttle takes 8.0 s to reach a speed of 160…

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Q: To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above…

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Q: 144.19. A particle of weight W, moving at a velocity of }Vgr fps at the top, slides vertically along…

A:

Q: Why doesn't the force of gravity change the speed of a satellite in circular orbit?

A: The gravitational force can’t change the speed of a satellite in circular orbit because the…

Q: When the mass of the earth is doubled, how does it affect the satellite?

A: mass of earth is double

Q: Consider a satellite that is in geosynchronous orbit around the earth's equator. A geosynchronous…

A: Given data: Earth's mass Me=5.98×1024kg Satellite's mass m=100 kg Earth's radius Re=6.37×106m…

Q: Two objects attract each other with a gravitational force of magnitude 9.90 10-9 N when separated…

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Q: If the satellite were to increase its orbital radius, how would this affect its acceleration around…

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Q: When a satellite coasts in a circular orbit at constant speed about Earth, is it accelerating? If…

A: When a satellite coasts in a circular orbit at a constant speed, the magnitude of its velocity…

Q: The direction of the gravitational force is always pointing downwards. True False

A: The direction of the gravitational force is always pointing downwards.

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.