Answer:
Explanation:
The volume of a sphere is:
V = 4/3 * π * a^3
The volume charge density would then be:
p = Q/V
p = 3*Q/(4 * π * a^3)
If the charge density depends on the radius:
p = f(r) = k * r
I integrate the charge density in spherical coordinates. The charge density integrated in the whole volume is equal to total charge.
Since p = k*r
Q = p*π^2*r^3 / 2
Then:
p(r) = 2*Q / (π^2*r^3)
The correct expression for the maximum speed of the object during its motion is .
The maximum speed of the object is determined using the following formulas;
v(max) = Aω
where;
The maximum speed of the object can also be obtained from the maximum net force on the object,
F = ma
where;
F = m(v/t)
mv = Ft
v = Ft/m
Thus, the correct expression for the maximum speed of the object during its motion is .
Learn more about maximum speed here: brainly.com/question/4931057
Answer:
Explanation:
The question, translated, is:
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<h2>Solution</h2><em />
This is a projectile motion, for which, the equations that you will need are:
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<u>1. Calculate the time that it takes the ball to fall 4ft</u>
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<u>2. Calculate the horizontal velocity:</u>