Answer:![r_2=11.81 cm](https://tex.z-dn.net/?f=r_2%3D11.81%20cm)
Explanation:
Given
![m_1=2.2\times 10^{-8} kg](https://tex.z-dn.net/?f=m_1%3D2.2%5Ctimes%2010%5E%7B-8%7D%20kg)
![m_2=4.8\times 10^{-8} kg](https://tex.z-dn.net/?f=m_2%3D4.8%5Ctimes%2010%5E%7B-8%7D%20kg)
same charge on both masses
potential Energy due to Magnetic Field =Kinetic Energy of Particle
![qV=\frac{mv^2}{2}](https://tex.z-dn.net/?f=qV%3D%5Cfrac%7Bmv%5E2%7D%7B2%7D)
![v=\sqrt{\frac{2qV}{m}}](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B%5Cfrac%7B2qV%7D%7Bm%7D%7D)
and we know
Force due to magnetic field will Provide centripetal Force
![qvB=\frac{mv^2}{r}](https://tex.z-dn.net/?f=qvB%3D%5Cfrac%7Bmv%5E2%7D%7Br%7D)
![B=\frac{\sqrt{\frac{2Vm}{q}}}{r}](https://tex.z-dn.net/?f=B%3D%5Cfrac%7B%5Csqrt%7B%5Cfrac%7B2Vm%7D%7Bq%7D%7D%7D%7Br%7D)
and B is equal for both particles
thus ![\frac{m}{r^2}=constant](https://tex.z-dn.net/?f=%5Cfrac%7Bm%7D%7Br%5E2%7D%3Dconstant)
![\frac{m_1}{r_1^2}=\frac{m_2}{r_2^2}](https://tex.z-dn.net/?f=%5Cfrac%7Bm_1%7D%7Br_1%5E2%7D%3D%5Cfrac%7Bm_2%7D%7Br_2%5E2%7D)
![r_2^2=\frac{4.8}{2.2}\times 8^2](https://tex.z-dn.net/?f=r_2%5E2%3D%5Cfrac%7B4.8%7D%7B2.2%7D%5Ctimes%208%5E2)
![r_2=11.81 cm](https://tex.z-dn.net/?f=r_2%3D11.81%20cm)
An example of an environmental issue is the acid rain in Germany. The acid rain is caused by pollution. Pollution that was caused by car putting harmful gases into the air is the main reason that there is acid rain in Germany. This is a problem because the acid rain is destroying Germany’s forests. Hope this helped!
Answer:
it's D. Make the column wider
Explanation:
First, balance the reaction:
_ KClO₃ ==> _ KCl + _ O₂
As is, there are 3 O's on the left and 2 O's on the right, so there needs to be a 2:3 ratio of KClO₃ to O₂. Then there are 2 K's and 2 Cl's among the reactants, so we have a 1:1 ratio of KClO₃ to KCl :
2 KClO₃ ==> 2 KCl + 3 O₂
Since we start with a known quantity of O₂, let's divide each coefficient by 3.
2/3 KClO₃ ==> 2/3 KCl + O₂
Next, look up the molar masses of each element involved:
• K: 39.0983 g/mol
• Cl: 35.453 g/mol
• O: 15.999 g/mol
Convert 10 g of O₂ to moles:
(10 g) / (31.998 g/mol) ≈ 0.31252 mol
The balanced reaction shows that we need 2/3 mol KClO₃ for every mole of O₂. So to produce 10 g of O₂, we need
(2/3 (mol KClO₃)/(mol O₂)) × (0.31252 mol O₂) ≈ 0.20835 mol KClO₃
KClO₃ has a total molar mass of about 122.549 g/mol. Then the reaction requires a mass of
(0.20835 mol) × (122.549 g/mol) ≈ 25.532 g
of KClO₃.