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MA_775_DIABLO [31]
3 years ago
7

The atoms of a molecule come from two or more?

Physics
1 answer:
AlladinOne [14]3 years ago
7 0
Compounds. two or more compounds.
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What happens when a proton is brought near another proton?
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They will repel each other because they both have positive charges.
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It took 50 joules to push a shopping cart 5 meters.with what face was the shopping cart pushed?
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PLEASE HELP
Sonja [21]

Answer:

The beat frequency is always equal to the difference in frequency of the two notes that interfere to produce the beats. So if two sound waves with frequencies of 256 Hz and 254 Hz are played simultaneously, a beat frequency of 2 Hz will be detected. ... These sounds will interfere to produce detectable beats.

Explanation:

5 0
3 years ago
A diffusion couple, made by welding a thin onecentimeter square slab of pure metal A to a similar slab of pure metal B, was give
bezimeni [28]

Answer:

The value  is    H  =  18*10^{2} \  Atom / sec

Explanation:

From the question we are told that

  The atom fraction of metal A at point G is A  =  0.30 \ m

   The atom fraction of metal  A at a distance 5000nm from G is  A_2 = 0.35

   The number of atoms per m^3 is    N_h =  9 * 10^{28}

    The diffusion coefficient is  D =   2* 10^{-14 } m^2/s

Generally of the concentration of atoms of metal A at G is  

       N_A = A * N_h

=>    N_A =  0.3  * 9 * 10^{28}

=>     N_A =   2.7 * 10^{28} 2.7 atoms/m^3

Generally of the concentration of atoms of metal A at a distance 5000nm from G is  

       D =  0.35 *9 * 10^{28}

=>     D =  3.15 * 10^{28} \  atoms / m^3

The concentration gradient is mathematically represented as

   \frac{dN_A}{dx}  =  \frac{(3.15 - 2.7) * 10^{28} }{5000nm - 0 }

=> \frac{dN_A}{dx}  =  \frac{(3.15 - 2.7) * 10^{28} }{[5000 *10^{-9}] - 0 }  

=>   \frac{dN_A}{dx}  = 9 * 10^{20} / m^4  

Generally the flux of the atoms per unit  area according to Fick's Law  is mathematically represented as

       J =  -D* \frac{d N_A}{dx}

=>    J =  -2* 10^{-14 * 9 * 10^{20}

=>    J =  18*10^{6}\   atoms\ crossing\ /m^2 s

Generally if the cross-section area is a  =  1 cm^2 =  10^{-4} \  m^2

Generally the number of atom crossing the above area  per second is mathematically is  

      H  =  18*10^{6}    *  10^{-4}

=>    H  =  18*10^{2} \  Atom / sec

7 0
3 years ago
An object accelerates at 3 meters per second when a 10-newton (N) force is applied to it. Which force would cause this object to
Feliz [49]

Answer: Net force

Explanation: all you really have to do is subtrach 3 from ten to get the net force and how fast the object is going

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