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Answer:
Coulomb's law is:
First, force has units of Newtons, the charges have units of Coulombs, and r, the distance, has units of meters, then, working only with the units we have:
N = (1/{e0})*C^2/m^2
then we have:
{e0} = C^2/(m^2*N)
And we know that N = kg*m/s^2
then the dimensions of e0 are:
{e0} = C^2*s^2/(m^3)
(current square per time square over cubed distance)
And knowing that a Faraday is:
F = C^2*S^2/m^2
The units of e0 are:
{e0} = F/m.
Answer:
Explanation:
This is an excellent question to get an answer for. It teaches you much about the nature of physics.
The answer is no.
The distance will be quite different. The time might be different in getting to the distance. But the acceleration will be the same in either case.
How do you know? Look at one of the formulas, say
d = vi * t + 1/2*a * t^2
What does vi do? vi will alter both t and d. if vi = 0 then both d and/or t will be found. But what will "a" do? Is there anything else acting in the up or down line of action? You should answer no.
If vi is not zero, t will be less and d will take less time to get where it is going.
Answer:
1. 2.98m/s
2. 0.28m
Explanation:
The energy equation would work great in this scenario:
E=K+U. Since all of our energy comes from gravitational potential energy, and we are interested in finding the kinetic energy, all our mechanical energy must be in kinetic form, therefore:
We can use energy to find max height.
For energy, set the equation E=K+U as 437.7=(mass adult+mass senior)gh: