A negative charge i guess
To solve the problem, use Kepler's 3rd law :
T² = 4π²r³ / GM
Solved for r :
r = [GMT² / 4π²]⅓
but first covert 6.00 years to seconds :
6.00years = 6.00years(365days/year)(24.0hours/day)(6...
= 1.89 x 10^8s
The radius of the orbit then is :
r = [(6.67 x 10^-11N∙m²/kg²)(1.99 x 10^30kg)(1.89 x 10^8s)² / 4π²]⅓
= 6.23 x 10^11m
This acceleration is directed towards the center of thecircle<span>. ... So for an object moving in a </span>circle<span>, there must be an inward </span>force<span> acting upon it in order to</span>cause<span> its inward acceleration. This is sometimes referred to as the </span>centripetal force<span> requirement.</span>
I believe the best option to go with will be option C. electrons are negatively charged
