Arigid object is rotating in a counterclockwise sense around a fixed axis. each of the following pairs of quantities represents an initial angular position and a final angular position of the rigid object.(a) which of the sets can only occur if the rigid object rotates through more than 180°? a. 3 rad, 6 radb. -1 rad, 1 radc. 1 rad, 5 rad(b) suppose the change in angular position for each of these pairs of values occurs in 1 s. which value represents the lowest average angular speed?
a. -1 rad, 1 radb. 3 rad, 6 rad c. 1 rad, 5 rad

(a) 1 rad, 5 rad

(b) -1 rad, 1 rad

Explanation:

180° = Π radians

Since pi has a value greater than 3,

The angular distance between the two points has to be greater than 3 radians

a) Only option C has an angular distance greater than 3rad (5-1= 4rad)

b) angular velocity = w = 2Πf

The lowest angular distance is -1rad, 1rad

1-(-1) rad = 2rad

Since the change in all of their positions happened in 1 second, option A has the lowest angular velocity for rotating the least in the same time.

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge