Answer:
Explanation:
Given
mass
Force
door knob is located at a distance of r=0.8 m from axis
Angular acceleration of door
Torque
where I=moment of inertia
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Answer:
it would be 3
Explanation:
because you have to divide the length by the height of the incline.
Answer: 31.33 degrees
Explanation:
The diffraction angles when we have a slit divided into parts are obtained by the following equation:
(1)
Where:
is the width of the slit
is the wavelength of the light
is an integer different from zero.
Now, the first-order diffraction angle is given when , hence equation (1) becomes:
(2)
Now we have to find the value of :
(3)
We know:
In addition we are told the diffraction grating has 5000 slits per mm, this means:
Substituting the known values in (3):
<u>Finally:</u>
>>>This is the first-order diffraction angle