Answer:
You meant "Negative-charged rod"?
If you did then here's the answer.
Away.
Explanation:
Since, the rod and Balloon both are negatively charged, and we know that like charges repel each other so, the electrons in the rod tend to move away from negatively charged balloon.
Answer:
an armature a permanent magnet brushes slip rings
Explanation:
As we know from the equation of kinematics
here it starts from rest
final angular speed will become 90 rad/s in time interval of t = 10 s
now we will have
So it will stop after 50 seconds of constant deceleration.
Answer:
The vertical distance is
Explanation:
From the question we are told that
The mass of the cylinder is m
The kinetic frictional force is f
Generally from the work energy theorem
Here E the the energy of the spring which is increasing and this is mathematically represented as
Here k is the spring constant
P is the potential energy of the cylinder which is mathematically represented as
And
is the workdone by friction which is mathematically represented as
So
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=>