3 years ago

What are five examples that illustrate a machine or a person doing work on another?

Physics

1 answer:

valentina_108 [34]3 years ago

5 0

I sort of understand but what does it mean by.... Another?

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Find the angle for the third-order maximum for 591 nm wavelength light falling on a diffraction grating having 1460 lines per ce

Marat540 [252]

Answer:

15.32°

Explanation:

We have given the wavelength $\lambda =591nm=591\times 10^{-9}m$

Diffraction grating is 1460 lines per cm

So $d=\frac{10^{-2}}{1460}=6.71\times 10^{-6}m$ (as 1 m=100 cm )

For maximum diffraction

$dsin\Theta =m\lambda$ here m is order of diffraction

So $6.71\times 10^{-6}sin\Theta =3\times 591\times 10^{-9}$

$sin\Theta =0.264$

$\Theta =15.32^{\circ}$

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2 years ago

A skydiver jumps from an airplane and falls freely for 5 seconds. If the sky diver's velocity increases by 49 m/s during that ti

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Acceleration = (change in speed) / (time for the change)

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   = (49 / 5) m/s / s

   =    9.8 m/s²

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Which of the following is an example of chemical change?

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Answer:

Explanation:

all the others r physical

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3 years ago

Usa test prep- Look at the picture below to answer. If u answer correctly i will mark you as brainliest!

Vladimir [108]

Answer:

Explanation:

The greatest concentration of atomic mass is in the nucleus because it is made up of protons and neutrons. The electrons surrounding the nucleus don't have as much mass as protons or neutrons.

Hopefully this helps...

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