A) heterogeneous mixture & I believe B?
I know A is correct though
The birth rate would be increasing due to the increasing population. The age structure would therefore be becoming more diverse as more people were being born and most likely immigrating into that population.
Answer:
The distance traveled by car before stopping is
Explanation:
Given
Initial speed of car
Final speed of the car
Acceleration of the car
Let distance traveled before stopping be s
Using equation of motion
=>
=>
Thus the distance traveled by car before stopping is
Answer: Ok, first lest see out problem.
It says it's a Long cylindrical charge distribution, So you can ignore the border effects on the ends of the cylinder.
Also by the gauss law we know that E¨*2*pi*r*L = Q/ε0
where Q is the total charge inside our gaussian surface, that will be a cylinder of radius r and heaight L.
So Q= rho*volume= pi*r*r*L*rho
so replacing : E = (1/2)*r*rho/ε0
you may ask, ¿why dont use R on the solution?
since you are calculating the field inside the cylinder, and the charge density is uniform inside of it, you don't see the charge that is outside, and in your calculation actuali doesn't matter how much charge is outside your gaussian surface, so R does not have an effect on the calculation.
R would matter if in the problem they give you the total charge of the cylinder, so when you only have the charge of a smaller r radius cylinder, you will have a relation between r and R that describes how much charge density you are enclosing.