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The force applied to the lever is 400 N, because the force applied by the lever (800 N) divided by the mechanical advantage of the lever (4) equals
400 N.
(800/4) = 200
For this case we have that according to Newton's second law it is true that:
Where:
F: It is the force
m: It is the mass
a: It is the acceleration
According to the data we have:
So, we have:
Thus, the applied force will be 7 Newtons.
Answer:
Answer:
a)
b) No
Explanation:
A) Because the electron is affected by an acceleration force in this case by the electric field, we can use the formulas of 2-dimension movement.
We will assume the electron missed the upper plate, so we need to calculate the time to travel all the way through the plate, that is:
so:
the electron experiences an accelerated motion in the vertical direction, so we can obtain the acceleration of the electron:
so:
now we can use the relation:
Now we can calculate the electric field:
B) Because the proton has the same charge but positive it will go in the opposite direction, so because we assume the electron didn't touch the plate, the proton won't.