Find the orbital speed v of a satellite in a circular orbit of radius r around a planet of mass m.

Explanation:

Given

Orbital speed is v

Mass of planet is m

Radius of circular orbit is r

suppose M is the mas of satellite then centripetal force on satellite is equal to the Gravitational Pull.

where G=gravitational constant

thus on solving we get

it becomes positively charged by charging it

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).