Chapter 5

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The gravitational attraction of the sun for earth is __ that of earth for the sun

The same as

On the surface of a certain planet the acceleration due to gravity F has a numerical value 5.2 m/s^2 this means that

The weight of 1 kg of a body at that location is 5.2N

On the surface of a certain planet the gravitational field strength has numerical value gplanet an object that experiences a gravitational force of 0.7 N on this planet must have a mass of

0.7/gplanet

A 320 kg satellite experiences a gravitational force of 800N what is the radius of the satellites orbit (earths radius is 6400 km)

12,800 km

A 600 kg geosynchronous satellite has a orbital radius of 6.6 earth radii what is the gravitational force does earth exert on the satellite

138N

Sally is an astronaut who has a mass of 60 kg currently she is conducting experiments in a permanent space station that is orbiting earth at a altitude equal to earths radius what is the force of gravity acting on Sally while she is in the space station

150N

What is the acceleration due to earths gravity at a distance of one earths radius above earth surface

2.5 m/s^2

Communication satellites are synchronous satellites that orbit earth each

24 hours

The gravitational force between two metal spheres in outer space is 1000N how large would this force be if each of the two spheres had twice the mass

4000N

A 90 kg satellite orbits a distant planet with a radius of 4000 km and a period of 280 min. from the radius and period you calculate the satellites acceleration to be 0.56 m/s^2 what is the gravitational force on the satellite

50.4N

Earths exerts a gravitational force of 7000N on one of the communication satellites what force does the satellite exert on earth

7000N

The acceleration due to gravity on titan Saturns largest moon is about 1.4 m/s^2 what would a 60 kg scientific instrument weight on Titan

84N

If earths mass were suddenly in magically reduced to half its present value the suns gravitational force on earth would

Be reduced by a factor of 2

Over which of the following locations is it possible to have a synchronous satellite

Equator

Does the moon orbit the sun

Yes but it also orbits earth


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