Answer:
![f_e = 1.51 cm](https://tex.z-dn.net/?f=f_e%20%3D%201.51%20cm%20)
Explanation:
given.
magnification(m) = 400 x
focal length (f_0)= 0.6 cm
distance between eyepiece and lens (L)= 16 cm
Near point (N) = 25 cm
focal length of the eyepiece (f_e)= ?
using equation
![m = -\dfrac{L-f_e}{f_o}.\dfrac{N}{f_e}](https://tex.z-dn.net/?f=m%20%3D%20-%5Cdfrac%7BL-f_e%7D%7Bf_o%7D.%5Cdfrac%7BN%7D%7Bf_e%7D)
![400 = \dfrac{16-f_e}{0.6}.\dfrac{25}{f_e}](https://tex.z-dn.net/?f=400%20%3D%20%5Cdfrac%7B16-f_e%7D%7B0.6%7D.%5Cdfrac%7B25%7D%7Bf_e%7D)
![9.6 = \dfrac{16-f_e}{f_e}](https://tex.z-dn.net/?f=9.6%20%3D%20%5Cdfrac%7B16-f_e%7D%7Bf_e%7D)
![9.6f_e = 16-f_e](https://tex.z-dn.net/?f=9.6f_e%20%3D%2016-f_e)
![f_e = 1.51 cm](https://tex.z-dn.net/?f=f_e%20%3D%201.51%20cm%20)
Answer:
the atomic mass is 11
Explanation:
the atomic mass is basically how many protons and neutrons there are so for this all you have to do is some simple math:
5 + 6 = 11
and boom, ur atomic mass is equal to 11!
Answer:
Personally I don't believe aliens exist maybe they do who knows but i don't think so.
Explanation:
Answer:
0.0241875 m
Explanation:
= Mass of quarterback = 80 kg
= Mass of football = 0.43 kg
= Velocity of quarterback
= Velocity of football = 15 m/s
Time taken = 0.3 seconds
In this system as the linear momentum is conserved
![m_1v_1+m_2v_2=0\\\Rightarrow v_1=-\frac{m_2v_2}{m_1}\\\Rightarrow v_1=-\frac{0.43\times 15}{80}\\\Rightarrow v_1=0.080625\ m/s](https://tex.z-dn.net/?f=m_1v_1%2Bm_2v_2%3D0%5C%5C%5CRightarrow%20v_1%3D-%5Cfrac%7Bm_2v_2%7D%7Bm_1%7D%5C%5C%5CRightarrow%20v_1%3D-%5Cfrac%7B0.43%5Ctimes%2015%7D%7B80%7D%5C%5C%5CRightarrow%20v_1%3D0.080625%5C%20m%2Fs)
Assuming this velocity is constant
![Distance=Velocity\times Time\\\Rightarrow Distance=0.080625\times 0.3\\\Rightarrow Distance=0.0241875\ m](https://tex.z-dn.net/?f=Distance%3DVelocity%5Ctimes%20Time%5C%5C%5CRightarrow%20Distance%3D0.080625%5Ctimes%200.3%5C%5C%5CRightarrow%20Distance%3D0.0241875%5C%20m)
The distance the quarterback will move in the horizontal direction is 0.0241875 m