Answer:
Explanation:
In this case we will use the Bohr Atomic model.
We have that: 
We can calculate the centripetal force using the coulomb formula that states:
Where K=
and r is the distance.
Now we can say:
The mass of the electron is = 
Kg
The charge magnitud of an electron and proton are= 
Substituting what we have:
![[tex]a=\frac{9*10^{9}*(1.6*10^{-19} )*(2(1.6*10^{-19} ))}{9.1*10^{-31}*(2.99*10^{-11})^2 }](https://tex.z-dn.net/?f=%5Btex%5Da%3D%5Cfrac%7B9%2A10%5E%7B9%7D%2A%281.6%2A10%5E%7B-19%7D%20%29%2A%282%281.6%2A10%5E%7B-19%7D%20%29%29%7D%7B9.1%2A10%5E%7B-31%7D%2A%282.99%2A10%5E%7B-11%7D%29%5E2%20%7D)
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so:
Answer:
Explanation:
The difference between the water level in the eudiometer tube and the water level in the beaker must be measured because we have to put into consideration, the pressure of the gases in the eudiometer tube. This said pressure of gas in the eudiometer must equal the atmospheric pressure. If or by chance, the water levels happens not to be at the same height, then this is not the case. And then, as a result, in order to account for the difference between both, while also being able to get accurate results, you have to find the difference or subtract the water levels and then go ahead in converting them to mmHg.
The force he must exert is 300 N
Answer:
R = 9880 yd * 3 ft/yd / 5280 ft/mi = 5.61 mi
If you do it in steps
R = 9880 yd * 3 ft/yd = 29640 ft
R = 29640 ft / 5280 ft/mi = 5.61 mi
