Answer:
The answer is "
"
Explanation:
Using the law of conservation for energy. Equating the kinetic energy to the potential energy.
Calculating the closest distance:
![=\frac{k(2e)(79e)}{KE}\\\\=\frac{k(2)(79)e^2}{KE}\\\\=\frac{9.0\times 10^9 \ N \cdot \frac{m^2}{c}(2)(79)(1.6 \times10^{-19} \ C)^2}{(2.25\ meV) (\frac{1.6 \times 10^{-13} \ J}{1 \ MeV})}\\\\](https://tex.z-dn.net/?f=%3D%5Cfrac%7Bk%282e%29%2879e%29%7D%7BKE%7D%5C%5C%5C%5C%3D%5Cfrac%7Bk%282%29%2879%29e%5E2%7D%7BKE%7D%5C%5C%5C%5C%3D%5Cfrac%7B9.0%5Ctimes%2010%5E9%20%5C%20N%20%5Ccdot%20%5Cfrac%7Bm%5E2%7D%7Bc%7D%282%29%2879%29%281.6%20%5Ctimes10%5E%7B-19%7D%20%5C%20C%29%5E2%7D%7B%282.25%5C%20meV%29%20%28%5Cfrac%7B1.6%20%5Ctimes%2010%5E%7B-13%7D%20%5C%20J%7D%7B1%20%5C%20MeV%7D%29%7D%5C%5C%5C%5C)
![=\frac{9.0\times 10^9 \times 2\times 79\times 1.6 \times10^{-19}\times 1.6 \times10^{-19} }{(2.25 \times 1.6 \times 10^{-13}) }\\\\=\frac{3,640.32\times 10^{-29}}{3.6 \times 10^{-13} }\\\\=\frac{3,640.32}{3.6} \times 10^{-16}\\\\=1011.2 \times 10^{-16}\\\\=1.01 \times 10^{-13}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B9.0%5Ctimes%2010%5E9%20%5Ctimes%202%5Ctimes%2079%5Ctimes%201.6%20%5Ctimes10%5E%7B-19%7D%5Ctimes%201.6%20%5Ctimes10%5E%7B-19%7D%20%7D%7B%282.25%20%5Ctimes%201.6%20%5Ctimes%2010%5E%7B-13%7D%29%20%7D%5C%5C%5C%5C%3D%5Cfrac%7B3%2C640.32%5Ctimes%2010%5E%7B-29%7D%7D%7B3.6%20%5Ctimes%2010%5E%7B-13%7D%20%7D%5C%5C%5C%5C%3D%5Cfrac%7B3%2C640.32%7D%7B3.6%7D%20%5Ctimes%2010%5E%7B-16%7D%5C%5C%5C%5C%3D1011.2%20%5Ctimes%2010%5E%7B-16%7D%5C%5C%5C%5C%3D1.01%20%5Ctimes%2010%5E%7B-13%7D)
According to newton's law Force = mass * acceleration
so , 100 = 50 * a
so , a= 2 m/s^2
Answer:
f = 1 m
Explanation:
The magnification of the lens is given by the formula:
![M = \frac{q}{p}](https://tex.z-dn.net/?f=M%20%3D%20%5Cfrac%7Bq%7D%7Bp%7D)
where,
M = Magnification = 4
q = image distance = 5 m
p = object distance = ?
Therefore,
![4 = \frac{5\ m}{p}\\\\p = \frac{5\ m}{4}\\\\p = 1.25\ m](https://tex.z-dn.net/?f=4%20%3D%20%5Cfrac%7B5%5C%20m%7D%7Bp%7D%5C%5C%5C%5Cp%20%3D%20%5Cfrac%7B5%5C%20m%7D%7B4%7D%5C%5C%5C%5Cp%20%3D%201.25%5C%20m)
Now using thin lens formula:
![\frac{1}{f}=\frac{1}{p}+\frac{1}{q}\\\\\frac{1}{f} = \frac{1}{1.25\ m}+\frac{1}{5\ m}\\\\\frac{1}{f} = 1\ m^{-1}\\\\](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7Bf%7D%3D%5Cfrac%7B1%7D%7Bp%7D%2B%5Cfrac%7B1%7D%7Bq%7D%5C%5C%5C%5C%5Cfrac%7B1%7D%7Bf%7D%20%3D%20%5Cfrac%7B1%7D%7B1.25%5C%20m%7D%2B%5Cfrac%7B1%7D%7B5%5C%20m%7D%5C%5C%5C%5C%5Cfrac%7B1%7D%7Bf%7D%20%3D%201%5C%20m%5E%7B-1%7D%5C%5C%5C%5C)
<u>f = 1 m</u>
Answer:
Albert Einstein was from Germany he was born theoritical physicist, from childhood only he loved mechanical toys, he was highly gifted in Mathematics, He was a world citizen and a scientific genius too. His contribution were:
1) he developed the theory of relativity
2) he also discovered the process of nuclear fission
3)he developed the quantum theory of specific heat
4)theory of stimulated emission, on which laser device technology is based
5) law of photoelectric effect
hope it helped you :)
A) le ha dado a conocer el nombre del director del festival del río y en la ciudad del sur del mar de la plata en el centro del mar del sur sur del sur y el mar de la sierra del mar de la plata del mar del plata