Question

find the elevation 'h' where the weight of an object is one-tenth its weight on the surface of the earth

Answer 1

Explanation:

weight w = mg 

m = mass (constent)

w2w1=g2g1;g1=R2GM

92=(R+h)2GM ;h = height

Sow2w1=R2(R+h)2

putting W2w1=16=R2(R+h)2

⇒RR+h=4⇒1+2h=4⇒h=3R

Answer 2

Answer is in Attachment !