Answer:
Average Velocity = 3.65 m/s
Explanation:
Average Velocity

Answer:
Explanation:
We can see from the question that

and 
% of 
=> 
from the question
% of 
Substituting this into the equation

=> 



From the equation above


Answer:
Wavelength, 
Explanation:
Given that,
Mass of the particle, 
Acceleration of the particle, 
Time, t = 5 s
It starts from rest, u = 0
The De Broglie wavelength is given by :

v = a × t



Hence, this is the required solution.
Atomic mass= number of protons + number of neutrons

hope this helps