OK having a slight problem finding the mass of the unknown nucleus.(adsbygoogle = window.adsbygoogle || []).push({});

Any help rearranging to find this using Newton's Gravitational law.

A hydrogen nucleus and a nucleus of an ‘unknown’ atom are stationary, 5.0 x 10 ^-10 m apart. The mass of the hydrogen nucleus is mh = 1.7 x 10 - 27kg and the electric charge of the hydrogen nucleus is e = 1.6 x 10 ^-19 C. You may assume that the electric constant ke, = 9.0 x 10^9N m2 C-2 and that the gravitational constant G = 6.7 x 10^-11N m2 kg -2.

The magnitude of the gravitational force between the hydrogen nucleus and the ‘unknown’ nucleus is 9.3 x 10 ^-45 N. State whether this force is attractive or repulsive. Calculate the mass of the ‘unknown’ nucleus that is necessary to give a force of this magnitude.

Thanks in advance

any help would be great!

J

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# Homework Help: Calculate the mass of unknown nucleus

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