The weight of an object at the centre of the Earth of radius R is _________________
A. zero
B. infinite
C. R times the weight at the surface of the Earth
D. 1/R2 times the weight at surface of the Earth
Answer:A
The weight of an object at the centre of the Earth of radius R is _________________
A. zero B. infinite C. R times the weight at the surface of the Earth D. 1/R2 times the weight at surface of the Earth