The index of refraction of a material is the ratio between the speed of light in vacuum, c, and the speed of light in that material, v:
where the speed of light in vacuum is
. The speed of light in benzene is
, so we can use the previous relationship to find the refractive index of benzene:
Answer:
Pardon
Explanation:
Using the fundamental laws of mass-energy conservation. We can determine that the photon particle is fundamental and delivers the energy required to change the mass of an object into energy.
Answer:
we know that that frequency= n/t
= 70/20
= 3.5 Hertz
Explanation:
i think that the answer
Answer:
4.3A
Explanation:
V=IR
120=I×28
I=120/28
=4.3
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Answer:
W = 3.4x0³ J.
Explanation:
The work done by the man is given by the following equation:
(1)
<em>where W: is the work, Ft is the total force and d: is the displacement = 4.25 m.</em>
We need to find first the total force Ft, which is:
<em>where Fm: is the force exerted by the man = 535 N, W: is the weight = m*g*sin(θ), m: is the mass of the man, g: is the gravitational acceleration = 9.81 m/s², and θ: is the angle = 20.0°. </em>
Hence, the work is:
Therefore, the work done by the man is 3.4x10³ J.
I hope it helps you!
