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iragen [17]
3 years ago
6

Form conise note on heat energy specific heat application evaporation boiling sublimation relative humidity and dew point

Physics
1 answer:
weqwewe [10]3 years ago
8 0
The answer is letter a

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With what speed must you approach a source of sound to observe a 25% change in frequency?
insens350 [35]
Sound source is at rest, you are moving with velocity v, f = frequency, c = speed of sound:

f = f0(1 + v/c)

115 = 100(1 + v/343)
115 = 100 + 100v/343
15 = 100v/343
v = 15*343/100
<span> v = 51,45 m/s </span>
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3 years ago
A man has a mass of 110kg . what is his weight?
Alisiya [41]
<span>1078 kgm / s would be the answer I hope this helps!!!</span>
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3 years ago
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What quantity measures the number of complete cycles an oscillation makes per second? A. period B. amplitude C. frequency D. for
Free_Kalibri [48]

Hello, there Jcparris

Your answer is going to be C. Frequency

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8 0
3 years ago
A series of optical telescopes produced an image that has a resolution of about 0.00350 arc second.
Mila [183]

Answer:

The smallest diameter is D =122 \ m

Explanation:

From the question we are told that

       The resolution of the telescope is \theta  =  0.00350 \ arc \ second

           The wavelength is  \lambda = 1.70 \mu m = 1.70 *10^{-6} \ m

From the question we are told that

        1 arc \ sec = \frac{1}{3600^o}

So      0.00350 \ arc \ second = x

Therefore

             x =  0.00350  *  \frac{1}{3600 }

              x = ( 9.722*10^{-7} )^o

Now  1^o  =  \frac{\pi}{180}

   So  (9.722*10^{-7})^o =  \theta

  =>    \theta  =  (9.722*10^{-7}) * \frac{\pi}{180}

           \theta  =  1.69*10^{-8} rad

The smallest diameter is mathematically represented  as

          D = \frac{1.22 \lambda }{\theta  }

substituting values

           D = \frac{1.22 * 1.7 *10^{-6}} {1.69 *10^{-8}  }

           D =122 \ m

   

6 0
3 years ago
Un acróbata de 60.0 kg está unido a un cordón de bungee con un resorte de 10.0 m de longitud . Salta de un puente que abarca un
Ede4ka [16]

Answer:

What kind of languege is this please?

8 0
2 years ago
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