To solve this problem it is necessary to use the concepts related to Snell's law.
Snell's law establishes that reflection is subject to
Where,
Angle between the normal surface at the point of contact
n = Indices of refraction for corresponding media
The total internal reflection would then be given by
Therefore the would be equal to
Therefore the largest value of the angle α is 30.27°
Based on the length of the Ethernet cable and the mass, the tension in the cable can be found to be 80 N.
<h3>How much tension is in the cable?</h3>
The tension in the cable can be found as:
= 4 x mass x length x frequency
Solving for the frequency is:
= 1 / (0.800 / 4)
= 1 / 0.20
= 5.0 Hz
The tension is therefore:
= 4 x 0.20 x 4.00 x 5
= 80N
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5.77 × Hz is the green photon's frequency .
The distance between similar points (adjacent crests) in adjacent cycles of a waveform signal that is propagated in space is known as the wavelength. A wave's wavelength is often measured in meters (m), centimeters (cm), or millimeters (mm) (mm). The relationship between frequency and wavelength is inverse.
<h3>Given:</h3>
Wavelength of green light = 520 nm
f = c / λ
where, f = Frequency
c = Speed of light = 3 × m/s
λ = Wavelength of light
∴ f = c / λ
f =
= 5.77 × Hz
Therefore, 5.77 × Hz is the green photon's frequency .
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Gravity always produces a pair of forces ... two of them.
The forces are opposite.
One force pulls 'A' toward 'B'.
The other force pulls 'B' toward 'A'.
For this question, let's say Astronaut Bob is standing on Mars.
There are two forces of gravity between the Astronaut and the planet.
One force pulls Bob toward Mars.
The other force pulls Mars toward Bob.
The force that pulls Bob toward Mars is what we call his "weight".
The other force ... the one that pulls Mars toward Bob ... is
the force that nobody ever talks about, but it's there.
The force that attracts you toward the Earth is
your "weight" on Earth.
The force that attracts the Earth toward you is
the Earth's weight on you.
The two forces are equal !
Answer:
The ground hits the ball with same force with which the balls hit the ground. That's why ball bounces back.
Gravity stops it from bouncing forever.
<em><u>Hope</u></em><em><u> this</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em>