If a neutron star has a diameter of 10 km and rotates 642 times a second what is the speed at the neutrons st?

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If a neutron star has a diameter of 10 km and rotates 642 times a second what is the speed at the neutrons st?

2007-04-24 18:29:28 · 2 answers · asked by Cloud 7 1 in Science & Mathematics ➔ Astronomy & Space

2 answers

You can find the velocity of a rotating object by multiplying the radius by the angular frequency. The radius is 5km and the angular frequency of 642*2pi radians/second. This gives a final velocity of 5*642*2pi = 20169km/second. (This is the speed of a neutron at the very edge of the star.)

2007-04-24 18:41:44 · answer #1 · answered by Supermatt100 4 · 0⤊ 0⤋

???
What means "at the neutrons st?"

Doug

2007-04-25 01:39:19 · answer #2 · answered by doug_donaghue 7 · 0⤊ 0⤋