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:
i think it's either force or time
Explanation:
just a random guess, but i think one of those are right
Answer:
We can remove ions and water molecules
Explanation:
We can remove ions and water molecules because both of them have an electric field . So this will help in repelling or attractive the above mentioned particles. Water is polar so it has an electric field due to net dipole moment.
Answer is C: Ability to see three-dimensional images of the surfaces of object
Explanation:
To enable the technician see fractures and broken particles in a better resolution as the SEM sees the peaks and valley of the structure.
If the speed is higher than the orbital velocity, but not high enough to leave Earth altogether (lower than the escape velocity), it will continue revolving around Earth along an elliptical orbit. (D) for example horizontal speed of 7,300 to approximately 10,000 m/s for Earth.