The difference between speed and velocity most involves
a. direction
b. amount
c. different units
d. acceleration

both have same amount, same unit, the main difference is that velocity includes Direction. so A is correct

beta is electron from nucleus

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

can u provide the graph and if its not possible

then i can tell u the segment where the

average time interval starts degrading is the segment where the car is slowing down