Answer:
10 N
Explanation:
F = ma = m(Δv/t) = 5.0(10.0 - 0)/5.0 = 10 N
Answer:
The answer is 3.
Explanation:
The answer to this question can be found by applying the right hand rule for which the pointer finger is in the direction of the electron movement, the thumb is pointing in the direction of the magnetic field, so the effect that this will have on the electrons is the direction that the middle finger points in which is right in this example.
So as a result of the magnetic field directed vertically downwards which is at a right angle with the electron beams, the electrons will move to the right and the spot will be deflected to the right of the screen when looking from the electron source.
I hope this answer helps.
Answer:
Explanation:
The relationship between angle and wavelength for maxima and minima in Young's double slit experiment is given by
For constructive interference
![d\sin \theta =m\lambda](https://tex.z-dn.net/?f=d%5Csin%20%5Ctheta%20%3Dm%5Clambda%20)
For Destructive interference
![d\sin \theta =(m+\frac{1}{2})\lambda](https://tex.z-dn.net/?f=d%5Csin%20%5Ctheta%20%3D%28m%2B%5Cfrac%7B1%7D%7B2%7D%29%5Clambda%20)
where ![\lambda =wavelength](https://tex.z-dn.net/?f=%5Clambda%20%3Dwavelength)
![d=slit\ width](https://tex.z-dn.net/?f=d%3Dslit%5C%20width)
m=order of maxima and minima
for second order maxima i.e. ![m=2](https://tex.z-dn.net/?f=m%3D2)
For smallest separation taking ![\lambda =400 nm, \theta =90^{\circ}](https://tex.z-dn.net/?f=%5Clambda%20%3D400%20nm%2C%20%5Ctheta%20%3D90%5E%7B%5Ccirc%7D%20)
![d\sin 90=2\times 400\times 10^{-9}](https://tex.z-dn.net/?f=d%5Csin%2090%3D2%5Ctimes%20400%5Ctimes%2010%5E%7B-9%7D)
![d=0.8\times 10^{-6}](https://tex.z-dn.net/?f=d%3D0.8%5Ctimes%2010%5E%7B-6%7D)
![d=0.8\mu m](https://tex.z-dn.net/?f=d%3D0.8%5Cmu%20m)
The answer is (a).
Golf balls have a higher density than water hence sink to the bottom.