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3 years ago

What is the answer???

Physics

1 answer:

brilliants [131]3 years ago

3 0

Answer:

Explanation:

It is better to say “It is correct.” The word THIS is a demonstrative pronoun. The word THIS should be used to point out or to indicate the things. The word CORRECT is an abstract noun therefore it can not be pointed out this is why it is better to say IT IS CORRECT.uu

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If the incoming solar radiation is scattered, it __________.

Lina20 [59]

Answer:

The wavelength is longer and warms the atmosphere

Explanation:

Hope it helps sorry it is late

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3 years ago

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A sample of an ideal gas has a volume of 2.37 L at 2.80×102 K and 1.15 atm. Calculate the pressure when the volume is 1.68 L and

iogann1982 [59]

Answer:

$p_2 = 1.76 atm$

Explanation:

given data:

v_1 = 2.37 L

v_2 = 1.68 L

p_1 =1.15 atm

p_2 = ?

t_1 = 280 K

t_2 = 304 K

from Gas Law Equation

, WE HAVE

$\frac{p_1 v_1}{t_1} =\frac{p_2 v_2}{t_2}$

Putting the values

$\frac{1.15*2.37}{280} =\frac{p_2 *1.68}{304}$

$9.733*10^{-3} = \frac{p_2 *1.68}{304}$

$9.733*10^{-3}*304 = p_2*1.68$

$\frac{9.733*10^{-3}*304}{1.68} =p_2$

$p_2= 1.76 atm$

7 0

4 years ago

The equation that describes a transverse wave on a string is y = (0.0120 m)sin[(927 rad/s)t - (3.00 rad/m)x] where y is the disp

dem82 [27]

Answer:

Speed, v = 312.34 m/s

Explanation:

The equation that describes a transverse wave on the string is given by :

$y=0.0120\ msin[(927\ rad/s)t-(3\ rad/m)x]$ ..............(1)

Where

y = displacement of a string particle

x = position of the particle on the string

The wave is travelling in the +x direction. We have to find the speed of the wave.

The general equation of traverse wave is given by :

$y=A\ sin(kx-\omega t)$ ................(2)

On comparing equation (1) and (2) we get,

k = 3 rad/m

Since, $k=\dfrac{2\pi}{\lambda}$

$\lambda=\dfrac{2\pi}{3}$ ..............(3)

Also, $\omega=927\ rad/s$

Since, $\omega=2\pi \nu$

$\nu=\dfrac{927}{2\pi}$ ...............(4)

Speed of the wave is the product of frequency and wavelength i.e.

$v=\nu\times \lambda$

Using equation (3) and (4), the speed of the wave can be calculated as :

$v=\dfrac{927}{2\pi}\times \dfrac{2\pi}{3}$

v = 312.34 m/s

Hence, the speed of the transverse wave is 312.34 m/s

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3 years ago

Which image illustrates why dark clothing helps to keep you warm on a cool, sunny day?

xeze [42]

Answer:

Explanation:

I suppose it has to do with the way the diagram is drawn. The heat does not reflect which makes both A and B incorrect.

C would have nothing to do with either reflection or refraction.

That only leaves D which is the answer.

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sveticcg [70]

Answer:

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