The star rho1 cancri is 57 light-years from the earth and has a mass 0.85 times that of our sun. a planet has been detected in a circular orbit around rho1 cancri with an orbital radius equal to 0.11 times the radius of the earth's orbit around the sun. what are (a)the orbital speed and (b)the orbital period of the planet of rho1 cancri?

tube or goog will be great resources to find the answer to the question that you're asking

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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the answer is a. hope this .

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach