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nydimaria [60]
2 years ago
14

Which of the following statements is true? there are only about 100 different kinds of atoms that combine to form all substances

an atom is the smallest particle known to exist a large atom can be photographed with the aid of an ordinary microscope there are thousands of different kinds of atoms that account for a wide variety of substances none of the above
Physics
1 answer:
TEA [102]2 years ago
3 0

THE ANSWER IS : THERE ARE ONLY ABOUT 100 DIFFERENT KINDS OF ATOMS THAT COMBINE TO FORM ALL SUBSTANCES

Explanation:

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Which system works with the respiratory system for the exchange of gases to take place?
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Answer:

Circulatory System

Explanation:

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You throw a 3.00 N rock vertically into the air from ground level. You observe that when it is 16.0 m above the ground, it is tr
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Answer:

The final speed of the stone as it lift the ground is 23.86 m/s.            

Explanation:

Given that,

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W=\Delta E\\\\W=\dfrac{1}{2}m(v^2-u^2)\\\\Fd=\dfrac{1}{2}m(v^2-u^2)\\\\v^2=\dfrac{2Fd}{m}+u^2\\\\v^2=\dfrac{2mgd}{m}+u^2\\\\v^2=2\times 9.8\times 16+(16)^2\\\\v=23.86\ m/s

So, the final speed of the stone as it lift the ground is 23.86 m/s.                                                    

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6 0
3 years ago
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A thin uniform cylindrical turntable of radius 2.2 m and mass 35 kg rotates in a horizontal plane with an initial angular speed
fenix001 [56]

Explanation:

The given data is as follows.

    M = 35 kg,    radius (r) = 2.2 m,

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We assume that will be the final angular speed.

Now, according to the conservation of angular momentum.

         L_{1} = L_{2}

or,    I_{1} \times \omega_{1} = I_{2} \times \omega_{2}

Putting the given values into the above formula as follows.

  I_{1} \times \omega_{1} = I_{2} \times \omega_{2}

   

or,  

      = \frac{(0.5 \times 35 \times (2.2)^{2}) \times 11}{(0.5 \times 35 \times (2.2)^{2} + 17 \times (1.5)^{2})}

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Thus, we can conclude that the angular speed of the clay and turntable is 7.58 rad/s.

4 0
3 years ago
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