Answer:
Energy of scattered photon is 232.27 keV.
Kinetic energy of recoil electron is 497.73 keV.
The recoil angle of electron is 13.40°
Explanation:
The energy of scattered photon is given by the relation :
.....(1)
Here E₁ is the energy of incident photon, E₂ is the energy of scattered photon,
is mass of electron and θ is scattered angle.
Substitute 730 keV for E₁, 511 keV for
and 120° for θ in equation (1).
![E_{2}=\frac{730 }{1+(\frac{730 }{511 })(1-\cos120) }](https://tex.z-dn.net/?f=E_%7B2%7D%3D%5Cfrac%7B730%20%7D%7B1%2B%28%5Cfrac%7B730%20%7D%7B511%20%20%7D%29%281-%5Ccos120%29%20%7D)
E₂ = 232.27 keV
Kinetic energy of recoil electron is given by the relation :
K.E. = E₁ - E₂ = (730 - 232.27 ) keV = 497.73 keV
The recoil angle of electron is given by :
![\cot\phi=(1+\frac{E_{1} }{m_{e}c^{2} })\tan\frac{\theta}{2}](https://tex.z-dn.net/?f=%5Ccot%5Cphi%3D%281%2B%5Cfrac%7BE_%7B1%7D%20%7D%7Bm_%7Be%7Dc%5E%7B2%7D%20%20%7D%29%5Ctan%5Cfrac%7B%5Ctheta%7D%7B2%7D)
Substitute the suitable values in above equation.
![\cot\phi=(1+\frac{730 }{511 })\tan\frac{120}{2}](https://tex.z-dn.net/?f=%5Ccot%5Cphi%3D%281%2B%5Cfrac%7B730%20%7D%7B511%20%20%7D%29%5Ctan%5Cfrac%7B120%7D%7B2%7D)
![\cot\phi=4.20](https://tex.z-dn.net/?f=%5Ccot%5Cphi%3D4.20)
= 13.40°
Answer:
Time = 0.187 secs
Explanation:
Parameters given:
Speed of hot air balloon = 1.60 m/s
Speed of toss = 10.7 m/s
Distance between passenger and friend at time of toss = 2m
To find the time given, we can simply divide the distance between the passenger and her friend by the speed of the toss. Mathematically,
Time = distance/speed
Time = 2/10.7
Time = 0.187 secs
Therefore, it takes 0.187 seconds for the camera to get to her.
Answer:
Answer: Because it at rest indefinitely without any external force acting upon it. Newton's first law also applies when the rocket is gliding through space with no external forces on it, it will travel in a straight line at a constant speed forever
Explanation:
Answer:
14,42
Explanation:
Let the smaller number be x
Hence, the larger number = 3x
Hence,
![3x-x=28\\2x=28\\x=14](https://tex.z-dn.net/?f=3x-x%3D28%5C%5C2x%3D28%5C%5Cx%3D14)
Hence, the smaller number = x = 14
The larger number = 3x = 42
To enable life, this most special of attributes, planet earth has a number of ideal features it is unique among other planets in our solar system for having water in its liquid form at the surface in an conducive to life evolving