Answer: rp/re= me/mp= 544 * 10^-6.
Explanation: To calculate this problem we have to consider the circular movement by the electron and proton inside a magnetic field.
Then the dynamic equation for the circular movement is given by:
Fcentripetal= m*ω^2.r
q*v*B=m*ω^2.r
we write this for each particle then we have the following:
q*v*B=me* ω^2*re
q*v*B=mp* ω^2*rp
rp/re=me/mp=9.1*10^-31/1.67*10^-27=544*10^-6
The answer is Sir Isaac Newton
Complete Question
A proton of mass mp= 1.67×10−27 kg and a charge of qp= 1.60×10−19 C is moving through vacuum at a constant velocity of 10,000 m/s directly to the east when it enters a region of uniform electric field that points to the south with a magnitude of E = 3.62e+3 N/C . The region of uniform electric field is 5 mm wide in the east-west direction. How far (in meters) will the proton have been deflected towards the south by the time it exits the region of uniform electric field. You may neglect the effects of friction and gravity, and assume that the electric field is zero outside the specified region. Answer is to be in units of meters
Answer:
![s = 0.039 \ m](https://tex.z-dn.net/?f=s%20%3D%20%20%200.039%20%5C%20m)
Explanation:
From the question we are told that
The mass of the proton is ![m = 1.67 *10^{-27} \ g](https://tex.z-dn.net/?f=m%20%3D%20%201.67%20%2A10%5E%7B-27%7D%20%20%5C%20g)
The charge of on the proton is ![q = 1.60 *10^{-19} \ C](https://tex.z-dn.net/?f=q%20%3D%201.60%20%2A10%5E%7B-19%7D%20%5C%20C)
The speed of the proton is ![v = 10000 \ m/s](https://tex.z-dn.net/?f=v%20%20%3D%20%2010000%20%5C%20m%2Fs)
The magnitude of the electric field is ![E = 3.62*10^{3 } \ N/C](https://tex.z-dn.net/?f=E%20%3D%20%203.62%2A10%5E%7B3%20%7D%20%5C%20%20N%2FC)
The width covered by the electric field
Generally the acceleration of the proton due to the electric toward the south (at the point where the force on the proton is equal to the electric force due to the electric field) is mathematically represented as
Substituting values
![a = \frac{1.60*10^{-19 } * 3.26 *10^{3}}{ 1.67*10^{-27}}](https://tex.z-dn.net/?f=a%20%3D%20%20%5Cfrac%7B1.60%2A10%5E%7B-19%20%7D%20%2A%20%203.26%20%2A10%5E%7B3%7D%7D%7B%201.67%2A10%5E%7B-27%7D%7D)
![a = 3.12*10^{11} \ m/s^2](https://tex.z-dn.net/?f=a%20%3D%20%20%203.12%2A10%5E%7B11%7D%20%5C%20m%2Fs%5E2)
Generally the time it will take the proton to cross the electric field is mathematically represented as
![t = \frac{d}{v}](https://tex.z-dn.net/?f=t%20%20%3D%20%20%5Cfrac%7Bd%7D%7Bv%7D)
Substituting values
![t = \frac{5 *10^{-3}}{10000}](https://tex.z-dn.net/?f=t%20%20%3D%20%20%5Cfrac%7B5%20%2A10%5E%7B-3%7D%7D%7B10000%7D)
![t = 5 *10^{-7} \ s](https://tex.z-dn.net/?f=t%20%20%3D%20%205%20%2A10%5E%7B-7%7D%20%5C%20%20s)
Generally the the distance covered by the proton toward the south is
![s = ut + \frac{1}{2} * a*t^2](https://tex.z-dn.net/?f=s%20%3D%20%20ut%20%2B%20%5Cfrac%7B1%7D%7B2%7D%20%2A%20a%2At%5E2)
Here u = 0 m/s this because before the proton entered the electric field region the it velocity towards the south is zero
So
![s = \frac{1}{2} * a*t^2](https://tex.z-dn.net/?f=s%20%3D%20%20%20%5Cfrac%7B1%7D%7B2%7D%20%2A%20a%2At%5E2)
Substituting values
![s = \frac{1}{2} * 3.12 *10^{11}*(5 *10^{-7})^2](https://tex.z-dn.net/?f=s%20%3D%20%20%20%5Cfrac%7B1%7D%7B2%7D%20%2A%203.12%20%2A10%5E%7B11%7D%2A%285%20%2A10%5E%7B-7%7D%29%5E2)
![s = 0.039 \ m](https://tex.z-dn.net/?f=s%20%3D%20%20%200.039%20%5C%20m)
1450.4 newtons has to be applied so the object can move , because At average gravity on Earth (conventionally,g = 9.80665 m/s2), a kilogram mass exerts a force of about 9.8 newtons. An average-sized apple exerts about one newton of force, which we measure as the apple's weight.
Answer:
1.25cm
Explanation:
Using
Minimum, as dsinစ = (m+1/2) lambda
Third dark fringe m= 2
dsinစ = (2+1/2)lambda
d(y/L)= (5/2) lambda
Y= 5/2* lambda *L/d
So substituting
=[ (500E-9m)(5m)/0.5E-3] 5/2
=0.0125m
= 1.25cm
Explanation: