Because acceleration is a quantity that has both magnitude and direction, it is a(

Vector Quantity

Explanation: there are two physical quantities for Physics: Scalar and Vectors. For Scalar quantity it is only indicated through magnitude such m/s, km/h it only states how strong a moving object is. Example is speed. While for Vector Quantity is involves both magnitude and direction. Examples are acceleration and forces.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

i think the answer would be reserve.