What is the systematic name of the following compound? ​​Al4​C3​

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. 

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

answerscientific theory;