1.

What is the work done in taking an object of mass 1kg from the surface of the earth to a height equal to the radius of the earth ? (G = 6.67 xx 10^(-11) Nm^(2)//Kg^(2), Radius of the earth = 6400 km, Mass of the earth = 6 xx 10^(24) kg.)

Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :The work <a href="https://interviewquestions.tuteehub.com/tag/done-2591742" style="font-weight:bold;" target="_blank" title="Click to know more about DONE">DONE</a> in taking an <a href="https://interviewquestions.tuteehub.com/tag/object-11416" style="font-weight:bold;" target="_blank" title="Click to know more about OBJECT">OBJECT</a> to a height <br/> `= (GMm)/(R(R+h)) , ""` Here hR <br/> `= (6.67 xx <a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a>^(-11) xx 6 xx 10^(24) xx 1)/(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a> xx 6.4 xx 10^(6)) = 3.127 xx 10^(7)J`.</body></html>


Discussion

No Comment Found