Answer:
The magnitude of the torque is 263.5 N.
Explanation:
Given that,
Applied force = 31 N
Distance from the axis = 8.5 m
She applies her force perpendicularly to a line drawn from the axis of rotation
So, The angle is 90°
We need to calculate the torque
Using formula of torque
Where, F = force
d = distance
Put the value into the formula
Hence, The magnitude of the torque is 263.5 N.
Answer:
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Explanation:
Answer:
Nearly all frequencies and wavelengths of electromagnetic radiation can be used for spectroscopy. Radio waves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays are all types of electromagnetic radiation. Radio waves have the longest wavelength, and gamma rays have the shortest wavelength.
Explanation:
Close to 14 is considered a strong base.
Missing question in the text:
<span>"Determine the magnitude of the resultant force acting on the particle when t=2s."
</span>
For Newton's second law, the force is given by
where m is the mass of the particle and a its acceleration.
The acceleration in polar coordinates is given by:
where
are the radial and tangential accelerations.
Therefore, to find the acceleration starting from the polar coordinates, we need to find the derivatives of r and
. Let's compute them:
We need the values at t=2s, therefore we have
and
And using t=2s,
And now we can calculate the acceleration:
and
And using the mass:
we find the force: