Answer:
B. Electrons are transferred from the fur to the plastic rod.
Explanation:
Triboelectricity or friction charging refers to the ability of materials to gain or lose electrons as a result of rubbing them against something. This phenomenon has been observed in the case of rubbing plastic rod against fur, or glass rod against silk.
In the context of rubbing plastic rod against fur, what happens is that the fur which has an excess of charges loses electrons to the plastic rod. This makes the plastic rod to become positively charged, and the fur, negatively charged.
Force = mass * acceleration
mass = Force/acceleration
= 36/2
mass = 18 kg
The maximum current in an ac circuit is related to the rms current by:
where
is the rms current and
is the maximum current.
If we re-arrange the formula and we use
, we can find the value of the maximum current:
The cart that has the smallest mass of sports equipment in it
has the greatest change in speed. We know this from Newton's
second law of motion ...
Force = (mass) x (acceleration).
If several objects have the same force acting on them, then the one
with the smallest mass has the greatest acceleration.
With total velocity 
, the horizontal component of velocity is
Then the horizontal displacement over the first minute is
