Got a dosie of a problem I need checked. I've been playing around with this problem, and after I submit the right answer (the ans. I got) , it came out wrong. Someone tell me what I'm doing wrong PLEASE thanks:(adsbygoogle = window.adsbygoogle || []).push({});

The prob. is to calculate escape velocity from a white dwarf and a neutron star. They are each 1 solar mass. The white dwarf has a radius of 104 km + the neutron star has a radius of 10 km.

Step I took:

sqr. root of 2GM/R = V = Sqroot of (2)(6.67e(-11)(1) all over 10^4th power

v = 1.15e(-7)

neutron star v= (2)(6.67e(-11)(1) all over 10

v = 3.65e(-6)

i got that, but only got half credit for this prob., what did I do wrong or have to add??

thanks

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# Escape Velocity Given Radius of 2 Objects

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