Which of the following can be calculated when given the radius of a wheel and the radius of an axle?
2 answers:
Answer:
C. the mechanical advantage of the wheel and axle
Explanation:
the ratio of the radius of a wheel to the ratio of an axle gives the mechanical advantage for that wheel and axle system
i.e Mechanical advantage =
for example if the radius of a wheel is 70m and the radius of an axle is 35m, the mechanical advantage for that machine is
M.A = 70/35 = 2
This implies that the outpu force is 2 times that exerted by the input force
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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.