Neutron stars, such as the one at the center of the Crab Nebula, have about the

Question

Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun but a much smaller diameter.

If you weigh 680 on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 22.0 ?
Take the mass of the sun to be = 1.99×1030 , the gravitational constant to be = 6.67×10-11 , and the acceleration due to gravity at the earth's surface to be = 9.810 .

Explanation / Answer

We know that F = G m1 m2 / r^2 So we have m1 = w/g = 680 / 9.8 = 69.38 kg m2 = ms = 1.99×10^30 kg d = 22.0 ==> r = d/2 = 22.0/2 = 11.0 km ==> Wn = G m1 * ms / r^2 = 6.67 x 10^-11 * 69.38 * 1.99 x 10^30 / (11 x 10^3)^2 = 7.611 x 10^13 N

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.