Benjamin Franklin has convinced his hapless assistant Mike Piepan to participate in an experiment on electiricty. Ben has set up
1 answer:
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Answer:
During start total turns
After half of the time total turns
Total number of turns during it stop
After half of the time total turns
Explanation:
Initially the machine is at rest and then starts rotating with speed 3550 rev/min
now we will have
now we know that it took 10 s to reach the speed
so angular acceleration is given as
now it stops in 31 s so the angular deceleration is given as
now initially number of turn to reach the given speed
number of turns during it stop
Now during startup speed after t = 5 s is given as
now during it stop the speed after half the time is given as
now the number of turns is given as
Answer:
The net force should be of a magnitude of 64 N
Explanation:
We use Newton's second Law for this:
which for our case gives:
Answer:
The magnitude is
The direction is the positive x axis
Explanation:
From the question we are told that
The electric field is E = 450 V/m in the negative y ‑direction
The speed of the proton is in the positive z direction
Generally the overall force acting on the proton is mathematical represented as
Now for the beam of protons to continue un-deflected along its straight-line trajectory then
So
=>
Generally from unit vector cross product vector multiplication
So the direction of B (magnetic field must be in the positive x -axis )
So
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