The planet xyz travels about the star abc in an orbit that is almost circular. assume that the orbit is a circle with radius 82 comma 000 comma 000 mi. assume there are 24 hours in one day on planet xyz. (a) assume that xyz planet year is 342 days, and find the angle formed by xyz's movement in one day. (b) give the angular speed in radians per hour. (c) find the linear speed of xyz in miles per hour.