Answer:
D. Large numbers of stars are undergoing blue-shift.
Explanation:
The Milky Way is changing because a large numbers of stars are undergoing blue-shift.
Answer:
C. Energy is used for life processes (e.g. Movement, breathing, etc.)
Explanation:
As we pass from one trophic level to the next, only 10% of energy is transferred from the first trophic level to the next. This is because a lot of energy is lost to the surroundings and rest is utilised by the organism.
Answer: the airy pattern can only arise from wave propagation
Explanation:if particles went in straight lines through a slit, they would progate linearly and not interfere. The airy pattern arises from diffraction as waves interfere, producing peaks (constructive interference where peaks of waves from each slit coincide) and troughs (destructive interference where peaks and troughs of waves from each slit cancel out). If intensity rather than field is measured nodes occur where 0 values line up instead of troughs
Answer:
Having the inside dimensions (ID) and the outside dimensions (OD) will allow you to figure out the wall thickness on tubing. You would need to subtract the ID from the OD and then divide by two. This number is the wall thickness.
Explanation:
Answer:
Explanation:
Given
Charge of first Particle ![q_1=+12\ \mu C](https://tex.z-dn.net/?f=q_1%3D%2B12%5C%20%5Cmu%20C)
Charge of second Particle ![q_2=-8\ \mu C](https://tex.z-dn.net/?f=q_2%3D-8%5C%20%5Cmu%20C)
distance between them ![d=4\ cm](https://tex.z-dn.net/?f=d%3D4%5C%20cm)
![k=9\times 10^{9}](https://tex.z-dn.net/?f=k%3D9%5Ctimes%2010%5E%7B9%7D)
magnetic field due to first charge at mid-way between two charged particles is
![E_1=\frac{kq_1}{r^2}](https://tex.z-dn.net/?f=E_1%3D%5Cfrac%7Bkq_1%7D%7Br%5E2%7D)
![r=\frac{d}{2}=\frac{4}{2}=2\ cm](https://tex.z-dn.net/?f=r%3D%5Cfrac%7Bd%7D%7B2%7D%3D%5Cfrac%7B4%7D%7B2%7D%3D2%5C%20cm)
![E_1=\frac{9\times 10^9\times 12\times 10^{-6}}{(2\times 10^{-2})^2}](https://tex.z-dn.net/?f=E_1%3D%5Cfrac%7B9%5Ctimes%2010%5E9%5Ctimes%2012%5Ctimes%2010%5E%7B-6%7D%7D%7B%282%5Ctimes%2010%5E%7B-2%7D%29%5E2%7D)
(away from it)
Electric field due to ![q_2=-8\ \mu C](https://tex.z-dn.net/?f=q_2%3D-8%5C%20%5Cmu%20C)
![E_2=\frac{kq_2}{r^2}](https://tex.z-dn.net/?f=E_2%3D%5Cfrac%7Bkq_2%7D%7Br%5E2%7D)
![E_2=-\frac{9\times 10^9\times 8\times 10^{-6}}{(2\times 10^{-2})^2}](https://tex.z-dn.net/?f=E_2%3D-%5Cfrac%7B9%5Ctimes%2010%5E9%5Ctimes%208%5Ctimes%2010%5E%7B-6%7D%7D%7B%282%5Ctimes%2010%5E%7B-2%7D%29%5E2%7D)
(towards it)
![E_{net}=E_1+E_2](https://tex.z-dn.net/?f=E_%7Bnet%7D%3DE_1%2BE_2)
(away from first charge)