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3 years ago

Your eyes form upside-down images, which are then flipped right-side-up by our brains.

Physics

2 answers:

Vitek1552 [10]3 years ago

4 0

Answer:

I believe it is true, but our brains don’t do it, I think it is the lenses in our eyes that do it. I might be wrong tho

Explanation:

N76 [4]3 years ago

4 0

Answer:

Yes it is true that our eyes form upside-down images, which are flipped right-side-up by our brain.

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Answer: D
Key thing to keep note, is "refraction"...
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4 years ago

Please help me with the one in the middle

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Photons with wavelength 1 pm are incident on electrons. What is the frequency of the Compton-scattered photons at an angle of 60

natali 33 [55]

Answer:

f = 1.354*10^{20} Hz

Explanation:

By conservation of linear momentum, wavelength shift due to collision of photon to electron is given by following formula

$\lambda ^{'}-\lambda =\frac{h}{m_{o}c}(1-cos\theta )$

where h is plank constant = 6.626*10^{-34}

c = speed of light = 3*10^{8} m/s

scattered angle = 60 degree

m = rest mass of electron = 9*10^{-31}

$\lambda ^{'}=10^{-12} +\frac{6.626*10^{-34}}{9*10^{-31}*3*10^{8}}(1-cos60^{o} )$

$\lambda ^{'}= 2.215 pm$

we know that 1 pm = 10^{-12}m

$f = \frac{c}{\lambda ^{'}}$

$f = \frac{3*10^{8}}{2.215 *10^{-12}} = 1.354*10^{20} Hz$

f = 1.354*10^{20} Hz

4 0

3 years ago

A gorilla is hanging motionless on a tree branch. If the gorilla's weight is 400 Newtons, what must be the tension in the tree b

I am Lyosha [343]

let's convert 400 newtons to Kg, which is 40.7886.

now we put it in a formula that includes gravity and acceleration

(40.7886 kg) ( 9.8 m/s2) + (40.7886 kg) (0)

now we come up with the answer of 399.72828 kg or 3920 Newtons

Not sure which unit you are looking for but they are both there.

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4 years ago