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23 Nov 2019

The Sun is below us at midnight, nearly in line with the Earth's center. Are we then heavier at midnight, due to the Sun's gravitational force on us, than we are at noon? Explain

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Patrina Schowalter
Patrina SchowalterLv2
29 Jun 2019
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Related textbook solutions

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

Related questions

Ā 

The intensity of sunlight at the Earth's distance from the Sun is 1370 W/m2.

(a) Assume the Earth absorbs all the sunlight incident upon it. Find the total force the Sun exerts on the Earth due to radiation pressure.


(b) Explain how this force compares with the Sun's gravitational attraction.

Strength______________ times stronger

1. The magnitude of the force the sun exerts on Uranus is1.41X10^21 newtons. Explain how it is possible for the sun to exerta greater forceo n Uranus then Neptune
exerts on Uranus.

8. A 2.0 kg object is falling freely near Earth's surface. What isthe magnitude of the gravitational force that Earth exerts on theobject?
a) 20 N B) 2.0 N C) 0 N D) 0.20 N

9. Gravitational force F exists between point objects A and Bseparated by distanace R. If the mass of A is doubled and distanceR is tripled, what is the new gravitational force between A andB?
A) 9/2 F B) 2/3 F C) 2/9 F D) 3/2 F

We often use delta U = m*g*delta y to approximate the change ingravitational
potential energy of an object close to the surface of the earth,with ge = 9.8m/s^2 . Similarly, we can approximate
the change in gravitational potential energy of an object close tothe surface of the sun as
delta Us = m*gs*delta y
where m is the mass of the object, gs is the gravitationalacceleration at the surface of the sun, and delta y is the
height above the surface.
(a)[2 pt(s) ]Calculate gs at the surface of the sun.
(b)[3 pt(s) ]Will the gravitational potential approximation givenabove for the sun be accurate over
a larger or smaller range of values of delta y than that for theearth? Justify your answer (do the math).

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