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23 Nov 2019

Which of the following statements are true?

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Earth'sgravity has no effect on astronauts inside the InternationalSpaceStation. An astronaut's weight is the same on theMoon as onEarth. Anastronaut's mass is the same onthe International Space Station asit is on Earth. None of thesestatements are true.Anastronaut's mass is greater on Earth than onthe Moon

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Lelia Lubowitz
Lelia LubowitzLv2
18 Jan 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

1)The earth makes a gravitational force on the moon, and themoon makes a gravitational force on the earth. Which of theseforces is larger?
a)The gravitational force of the earth on the moon isgreater.
b)The gravitational force of the moon on the earth isgreater.
c)The two forces are equal.
d)There is no way to tell.
2) Suppose you could climb a ladder whose height is equal to theradius of the earth. At the top of this ladder
a) your weight would be the same as it is at the surface of theearth.
b)your weight would be ½ its value at the surface of theearth.
c)your weight would be ¼ its value at the surface of theearth.
d) you would be weightless.
3) The moon has potential energy because it is near the earth. Ifit were twice as far from the earth as it is now,
a) its potential energy would be higher than it is now.
b) is potential energy would be less than it is now.
c) its potential energy would be the same as it is now.
4) Suppose a satellite has a circular orbit around the earth. Whydoes it stay in orbit?

a)Because gravity does not act on it in the vacuum of space.
b)Because it is in equilibrium; the inward pull of gravity isbalanced by an outward force.
c) Because as it moves tangentially, the satellite is acceleratedby the force of gravity toward the center of the earth.

5)

Which of the following statements is true?


Planets move in circularorbits, with the Sun in the center of the orbit.
Planets move in circularorbits, with the Sun located off-center.
Planets move in ellipticalorbits, with the Sun in the center.
Planets move in ellipticalorbits, with the Sun located off-center.

PLEASE HELP ME PICK THE RIGHT ANSWER FOR EACH QUESTIONS. PLEASEWRITE OUT THE WHOLE ANSWER AND THE LETTER. THANK YOU!

13.62. (a) Calculate how much work is required to launch a spacecraft of mass m from the surface of the earth (mass me, radius RE) and place it in a circular low earth orbit—that is, an orbit whose altitude above the earth's surface is much less than RE: (As an example, the International Space Station is in low earth orbit at an altitude of about 400 km, much less than RE = 6370 km.) Ignore the kinetic energy that the spacecraft has on the ground due to the earth's rotation. (b) Calculate the minimum amount of additional work required to move the space- craft from low earth orbit to a very great distance from the earth. Ignore the gravitational effects of the sun, the moon, and the other planets. (C) Justify the statement "In terms of energy, low earth orbit is halfway to the edge of the universe."

The figure below shows a picture of American astronaut Clay Anderson experiencing weightlessness onboard the International Space Station.

(a) Most people have the misconception that a person in a spacecraft is weightless because he or she is no longer affected by gravity. Show that this premise cannot be true by computing the gravitational field of the Earth at an altitude of 200 km, the typical altitude of a spacecraft in orbit. Compare this result with the gravitational field on the surface of the Earth.

(b) Why would astronauts in orbit experience weightlessness even if they are experiencing a gravitational field (and therefore a gravitational force)?

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