Explanation:
It is given that,
Bandwidth of a laser source, 
(b) Let t is the time separation of sections of sections of the light wave that can still interfere. The time period is given by :
(a) Let h is the coherence length of the source. It is given by :
c is the speed of light
l = 0.0099 m
Hence, this is the required solution.
Dimensional analysis is a method of checking the dimensions of each value in an equation. I will give you an example.
Is a know equation which equates energy and mass. So our question is, is this true or not? The method is following:
knowing that c has the dimension of [m/s] and m has [kg], what is the dimension of E? So here the dimensional analysis begins.
![E = mc^2 \Rightarrow [E] = \text{kg} \cdot \left( \frac{\text{m}} {\text{s}}\right)^2 = \text{kgms}^{-2}](https://tex.z-dn.net/?f=E%20%3D%20mc%5E2%20%5CRightarrow%20%5BE%5D%20%3D%20%5Ctext%7Bkg%7D%20%5Ccdot%20%5Cleft%28%20%5Cfrac%7B%5Ctext%7Bm%7D%7D%20%7B%5Ctext%7Bs%7D%7D%5Cright%29%5E2%20%3D%20%5Ctext%7Bkgms%7D%5E%7B-2%7D)
This can be used also to solve "equations" to prove certain dimensions of unknown constants.
Answer:
b)10 m/s^2 up
Explanation:
Immediately after The release from the rocket the acceleration of the instrument package will be same as of the rocket that is 10m/s^2 upward.
This because of newtons law of inertia. The states that a body in state of rest and state of motion will remain in state of rest or motion until and unless any external force is applied on it. Immediately after being released from the rocket inertia will keep the acceleration same. The effect of gravity come gradually.
Answer:
The image height is 0.00283 m or 0.283 cm and is inverted due to the negative sign
Explanation:
u = Object distance = 9 m
v = Image distance = 1.7 cm (as the image is forming on the retina)
= Object height = 1.5 m
Magnification
The image height is 0.00283 m or 0.283 cm and is inverted due to the negative sign
ME = PE + KE
ME = mgh + 1/2mv^2
105.8 J = (0.145)(9.81)(12m) + (1/2)(0.145)(v^2)<- what you need to solve for
105.8 J = 17.07 + 0.0725v^2
105.8 J - 17.07 = 0.0725v^2
88.73 = 0.0725v^2
88.73/0.0725 = v^2
1223.86 = v^2
√1223.86 = v
34.98 = v or v = 34.98
hope this helps :)
