PHYSICS/ASTRONOMY MATH REQUIRED VERY EASY

1) Angle between Celestial Equator and Ecliptic Plane is 30 Degrees. a)Find The Angle In Radians b) How many Arcminutes in the angle? Show all work. 2)The Moon goes around the earth in about 29.5 days. a) Find the Angular speed of Moons rotation in the radian per hour units. SHOW ALL WORK. 3)The surface of the earth moves with velocity of 2KM an hour at equator. Find the earth's radius by using the length of day. HINT: S=VxT SHOW ALL WORK.