a space vehicle is in a circular orbit about the earth. the mass of the vehicle is , and the radius of the orbit is . it is desired to transfer the vehicle to a circular orbit of radius . an efficient way to accomplish the transfer is to use an elliptical orbit from point on the inner circular orbit to a point on the outer circular orbit (known as a hohmann transfer orbit). (part a) what is the speed and kinetic energy of an object of mass moving in a circular orbit of radius and speed about a planet of mass ?
