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Greeley [361]
3 years ago
8

1. How much work is done by a person if he lifts a load of 500 kg upto a height of 2m?​

Physics
1 answer:
iren [92.7K]3 years ago
3 0

Explanation:

if we take g=9.8m/s^2

F=mg

m=500

F=500×9.8=4900N

h=2

so w=mgh

w=4900×2

=9800j

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ahrayia [7]

when we placed in the container of real depth assuming = d

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if the container filled with liquid B then its apparent depth d' = 6cm

so the refractive index nB = real depth / apparent depth

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if the container filled with liquid C then its apparent depth d' = 5cm

so the refractive index nC = real depth / apparent depth

                                       = d/5cm = 0.2d

Since the refractive index is inversely proportional to the apparent depth

then the refractive indices are nC > nB > nA

3 0
3 years ago
Which of the angles shown in this picture is the angle of incidence?<br> A<br> B
Dmitry_Shevchenko [17]
The pictures are not attached, therefore, I cannot give a specific choice.
However, I will try to help you out.

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The angle of incidence can be shown in the attached image.

Therefore, for your question, choose the image on which the above description applies.

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6 0
3 years ago
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Monochromatic light falls on two very narrow slits 0.048 mm apart. successive fringes on a screen 5.00 m away are 6.5 cm apart n
atroni [7]
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Therefore, from the previous formula we can find the wavelength of the light:
\lambda =  \frac{yd}{mD}= \frac{(0.065 m)(0.048 \cdot 10^{-3}m)}{(1)(5.00 m)}=  6.24 \cdot 10^{-7}m

And from the relationship between frequency and wavelength, c=\lambda f, we can find the frequency of the light:
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3 years ago
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Answer:

Models,Mathematics

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