Answer:
0.915 Nm
Explanation:
1 revolution = 2π rad
We can use the following equation of motion to find out the acceleration acting on the disk
where = 0 rad/s is the initial velocity of the can when it starts from rest,
is the angular distance traveled,
is the angular acceleration of the disk, which we care looking for:
The moment of inertia of the solid disk is:
where m is the mass and R is the radius of the disk
The net torque applied is
Total rate at which electrical energy is dissipated by the two resistors are V²/R or I²R.
<u>Explanation:</u>
When the two resistors are combined in series then the total resistance gets added.
If and
are in series then total resistance, R =
Total resistance becomes + 19 Ω
The total electrical power dissipated is equivalent to the power dissipated.
We know,
Power = V²/R or
Power = I²R
where, V is the potential difference between the ends
I is the current supplied.
Therefore, total speed at which electrical power is consumed by the two resistors are V²/R or I²R.