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Gravitational Field Quiz
New Problems
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Make sure to enter your answers in the specified units .
1
What is the gravitational field (in N/kg) Earth radii above the Earth's surface?
2
What is the gravitational field (in N/kg) km above a planet with a mass of x 10
^{22}
kg and a radius of x 10
^{6}
m?
3
An astronaut standing on the surface of the moon launches a projectile straight up from the surface. What should the initial speed (in m/s) of the projectile be so that it will reach a height of x 10
^{6}
m above the moon's surface? (The moon's mass is 7.35 x 10
^{22}
kg and its radius is 1.74 x 10
^{6}
m.)
4
What is the escape velocity (in m/s) from a planet with a radius of x 10
^{6}
m and a mass of x 10
^{22}
kg?
5
How much work (in kJ) is done lifting a kg payload from the Earth's surface to a height of m above the Earth's surface? (The mass of the Earth is 5.98 x 10
^{24}
kg and the Earth's radius is 6.38 x 10
^{6}
m.)
6
How much work (in MJ) is done to raise a kg payload from Earth's surface to a height of x 10
^{6}
m above the Earth's surface? (The mass of the Earth is 5.98 x 10
^{24}
kg and the Earth's radius is 6.38 x 10
^{6}
m.)
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cannot resubmit answers
for the same Problem Set--you must use the 'New Problems' button first.