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1-it takes 23h 56m 4s for the earth to make one revolution what is the angular s

ID: 1981622 • Letter: 1

Question

1-it takes 23h 56m 4s for the earth to make one revolution what is the angular speed of the earth ?

the answer was 7.29*10^-5 rad/s

2-Assume the earth is spherical. Relative to someone on the rotation axis, what is the linear speed of an object on the surface if the radius vector from the center of the earth to the object makes an angle of 60.0° with the axis of rotation. The radius of the earth is 6.37×103 km.

3- What is the acceleration of the object on the surface of the earth in the previous problem?

Explanation / Answer

Period T = 23 h 56 min 4 s = ( 23 * 3600 s) + ( 56 * 60s ) + 4 s = 86164 s Angular speed of earth w = 2( pi ) / T = 7.2921 * 10 ^ -5 rad / s

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