A police car is parked by the side of a highway and its siren emits a sound measuring 750 Hz. As you approach the police car fro
2 answers:
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Answer:
Explanation:
Given that,
The length of the beam L = 3.10m
The mass of the steam beam = 430kg
The mass of worker = 69.0kg
The distance from the fixed point to centre of gravity of beam =
and our length of beam is 3.10m
so the distance from the fixed point to centre of gravity of beam is
Then the net torque is
is the weight of steel rod
is the weight of the worker
Torque can now be calculated
≅ 9169Nm
<h3>Therefore,the magnitude of the torque is 9169Nm</h3>Answer:
1)
Force on bar magnet = 0
Torque on bar magnet = 0
2)
Force on bar magnet = 0
Torque on bar magnet = 0.177 Nm
3)
Force on bar magnet = 0
Torque on bar magnet = 0.25 Nm
Explanation:
Part 1)
net force on bar magnet in uniform magnetic field is always zero
Torque on bar magnet is given as
when bar magnet is inclined along z axis along magnetic field
then we will have
Part 2)
net force on bar magnet in uniform magnetic field is always zero
Torque on bar magnet is given as
when bar magnet is pointing 45 degree with z axis then we will have
Part 3)
net force on bar magnet in uniform magnetic field is always zero
Torque on bar magnet is given as
when bar magnet is pointing 90 degree with z axis then we will have