The next step is -748 divide by -11 is 68 m (answer) the pic got cropped sorry
Which is the relationship between photon energy and the color of light?
1 answer:
The energy of a photon is given by
where
h is the Planck constant
f is the frequency of the light.
From this formula, we see that the higher the frequency, the greater the energy, and viceversa.
Now let's have a look at the frequencies of the different colors of visible light. Violet is the color with higher frequency, while red is the color with lower frequency. This means that violet photons have the greatest energy, while red photons have the least amount of energy. So, correct answer is
<span>C. Red photons have the least amount of energy.</span>
where
h is the Planck constant
f is the frequency of the light.
From this formula, we see that the higher the frequency, the greater the energy, and viceversa.
Now let's have a look at the frequencies of the different colors of visible light. Violet is the color with higher frequency, while red is the color with lower frequency. This means that violet photons have the greatest energy, while red photons have the least amount of energy. So, correct answer is
<span>C. Red photons have the least amount of energy.</span>
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Answer:
w=3.05 rad/s or 29.88rpm
Explanation:
k = coefficient of friction = 0.3900
R = radius of the cylinder = 2.7m
V = linear speed of rotation of the cylinder
w = angular speed = V/R or to rewrite V = w*R
N = normal force to cylinder
N=
These must be balanced (the net force on the people will be 0) so set them equal to each other.
There are 2*pi radians in 1 revolution so:
So you need about 30 RPM to keep people from falling out the bottom