A car is moving at 14 m/s. After 30 s, its speed inncreased to 20 m/s. What is the acceleration over time

0.2 m/s^2

Explanation:

initial speed 14m/s

final speed 20m/s

acceleration:

(20m/s - 14m /s) /30s = (6m/s)/30s = 0.2 m/s^2

lexy is right because she has the labeled s

beta is electron from nucleus

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