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3 years ago

Describe the change that occurs in the pattern of atmospheric temperature at the pauses

1 answer:

4 0

Within each layer temperature either goes up (in the stratosphere and thermosphere) or down (in the troposphere and mesosphere). Boundaries "pauses<span>" between layers are defined by where temperature stays about the same with height.

Hope this helps!
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The average intensity of light emerging from a polarizing sheet is 0.775 W/m2, and that of the horizontally polarized light inci

rewona [7]

Answer:

the transmission axis of polarizing sheet makes an angle of $\Theta =26.74^{\circ}$ with the horizontal

Explanation:

We have given that intensity of light incident on the sheet $I_0=0.970W/m^2$

Average intensity of light emerging from a polarizing sheet $I=0.775W/m^2$

We have to find the angle between transmission axis with the horizontal

Intensity of light polarizing from sheet is equal to $I=I_0cos^2\Theta$

So $0.775=0.970cos^2\Theta$

$cos^2\Theta =0.798$

$cos\Theta =0.893$

$\Theta =26.74^{\circ}$

So the transmission axis of polarizing sheet makes an angle of $\Theta =26.74^{\circ}$ with the horizontal

5 0

3 years ago

Q15.17 Both wave intensity and gravitation obey inverse-square laws. Do they do so for the same reason?Discuss the reason for ea

s2008m [1.1K]

(a) Intensity obeys inverse square law from basis of light passing through a given surface.

(b) Gravitation obeys inverse square law from the basis of force between two masses.

<h3>What is intensity?</h3>

Intensity is the ratio is ratio of power to area of a given surface.

I = P/A (W/m²)

where;

P is power
A is area

<h3>Universal gravitation law</h3>

$F = \frac{Gm_1m_2}{r^2}$

Intensity and gravitation do not obey inverse square law for same reason;

Intensity obeys inverse square law from basis of light passing through a given surface.
Gravitation obeys inverse square law from the basis of force between two masses.

<h3>Acceleration of the block</h3>

a = v²/A

a = (3.9²)/0.12

a = 126.75 m/s²

Learn more about acceleration here: brainly.com/question/605631

#SPJ1

7 0

2 years ago

What would tweezers be used for in a first-aid kit?

Alexxandr [17]

To remove a splinter from the skin.

6 0

3 years ago

Read 2 more answers

If a woman needs an amplification of 1.0 ✕ 105 times the threshold intensity to enable her to hear at all frequencies, what is h

Damm [24]

Answer:

50 dB.

Explanation:

given,

Amplification needed by the woman,I= 1 x 10⁵ I₀

where as I₀ is the threshold frequency

overall hearing loss of the woman= ?

Using the equation of sound intensity level

$\beta(dB) = 10 log(\dfrac{I}{I_0})$

$\beta(dB) = 10 log(\dfrac{1\times 10^5\ I_0}{I_0})$

$\beta(dB) = 10 log(1\times 10^5)$

$\beta(dB) = 50\ dB$

The overall hearing loss of woman is equal to 50 dB.

7 0

4 years ago

Would you hear an echo if you shouted in your bedroom? Explain your answer.

Sindrei [870]

Answer:

if your bedroom is empty yes but if not most likely no

Explanation:

Why Cannot we hear an echo in a small room?

They can't hear an echo in small room because in it the sound can't be reflected back. For an echo of a sound to be heard,the minimum distance between the source of sound and the walls of the room should be 17.2 m.Obviously,in a small room echoes cannot be heard.

8 0

4 years ago

Read 2 more answers