Certain neutron stars (extremely dense stars) are believed to be rotating at about 1.6 rev/s. if such a star has a radius of 48 km, what must be its minimum mass so that material on its surface remains in place during the rapid rotation?

Mass,

Explanation:

Given that,

Angular velocity of the star,

Radius of the star, r = 48 cm = 0.48 m

The centripetal force acting on the on the star is caused by the gravitational force such that,

Since,

So, the minimum mass so that material on its surface remains in place during the rapid rotation is

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.