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Verdich [7]
3 years ago
12

All scientific theories on the solar system are based on-

Physics
2 answers:
S_A_V [24]3 years ago
6 0
It has to be C, non-observable information. Biased is definitely wrong, current evidences can't be right because scientific theories have been established long before we were born and non-testable was already listed by someone else that they put it and got it wrong.
I hope this helps.
joja [24]3 years ago
5 0
It's not non testable facts..I just took the test and got it wrong.
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Calculate the de Broglie wavelength of: a) A person running across the room (assume 180 kg at 1 m/s) b) A 5.0 MeV proton
solmaris [256]

Answer:

a

\lambda = 3.68 *10^{-36} \  m

b

\lambda_p = 1.28*10^{-14} \ m

Explanation:

From the question we are told that

   The mass of the person is  m =  180 \  kg

    The speed of the person is  v  =  1 \  m/s

    The energy of the proton is  E_ p =  5 MeV = 5 *10^{6} eV  = 5.0 *10^6 * 1.60 *10^{-19} = 8.0 *10^{-13} \  J

Generally the de Broglie wavelength is mathematically represented as

      \lambda = \frac{h}{m * v }

Here  h is the Planck constant with the value

      h = 6.62607015 * 10^{-34} J \cdot s

So  

     \lambda = \frac{6.62607015 * 10^{-34}}{ 180  * 1  }

=> \lambda = 3.68 *10^{-36} \  m

Generally the energy of the proton is mathematically represented as

         E_p =  \frac{1}{2}  *   m_p  *  v^2_p

Here m_p  is the mass of proton with value  m_p  =  1.67 *10^{-27} \  kg

=>     8.0*10^{-13} =  \frac{1}{2}  *   1.67 *10^{-27}  *  v^2

=>   v _p= \sqrt{\frac{8.0 *10^{-13}}{ 0.5 * 1.67 *10^{-27}} }

=>   v = 3.09529 *10^{7} \  m/s

So

        \lambda_p = \frac{h}{m_p * v_p }

so    \lambda_p = \frac{6.62607015 * 10^{-34}}{1.67 *10^{-27} * 3.09529 *10^{7} }

=>     \lambda_p = 1.28*10^{-14} \ m

     

5 0
3 years ago
Acceleration due to gravity is ( always / sometimes / never ) the same on the earth.
love history [14]

Sometimes, because acceleration due to gravity on Earth depends on how close you are to the Earth's center.

4 0
4 years ago
How long would it take you to travel 163 meters at a speed of 33 meters per second?
Leviafan [203]

Speed=

33m {s}^{ -1}

Distance=

163m

speed= distance/time

So,

<u>Time</u><u>=</u><u> </u><u>distance</u><u>/</u><u>speed</u>

Time= 163/33

<h2>=</h2>

\huge\underline\mathtt\colorbox{cyan}{4.9393s}

7 0
3 years ago
Which voice can produce a pitch that has a speed of 343 m/s and a wavelength of 0.68 m?
lys-0071 [83]
The answer for you question would be : Soprano
One of the type of voice that could produce a pitch that has a speed of 343 m/s and a wavelength of 0.68 m would be soprano

hope this helps
8 0
3 years ago
What are the similarities between EMS waves and mechanical waves?
irga5000 [103]

Answer:

eternal mangekyou sharingan

Explanation:

4 0
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