Sunday, 21 October 2007

Problem: Materials #3

Within a certain type of star called a neutron star, the material at the centre has a mass density of 1.0 × 1018 kg m-3. If a small sphere of this material of radius 1.0 × 10-5 m were somehow transported to the surface of the earth, what would be the weight of this sphere? (Assume that g = 10 m s-2)
A. 1000 N
B. 4200 N
C. 4.2 × 104 N
D. 7.0 × 104 N
E. 3.1 × 109 N

Solution

Show solution >>



Question source: Malaysia National Physics Competition 2007 (Secondary Level)

1 comment:

nisha said...

Good work, i like your blog theme, and content ofcourse
mba