Answer:
Explanation:
In mirror generally, the type of image that can be formed by an object placed in front of it can either be a real image or a virtual image. Virtual images are images that are formed behind the mirror.
Virtual images are also images that cannot be formed from a photographic screen i.e the image formed by an object in front of the mirror cannot be reproduced compare to a real image than can be formed on a screen. This is the reason why we are able to get a picture of our self when pictures are taken using a photograph (For real images). This is not the same for virtual images.
We can only see ourselves when we stand in front of a mirror but in actual fact, we cannot reproduce the image of us we are seeing in the mirror.
Answer:
u = 104.68 m/s
Explanation:
given,
horizontal distance = 150 m
elevation of 12.4 m
angle = 8.6°
horizontal motion = x = u cos θ. t .............(1)
vertical motion =
................(2)
from equation(1) and (2)
..........{3}
![12.4 = 150\times tan (8.6) - \dfrac{9.8\times 150^2}{2u^2cos^2(8.6)}](https://tex.z-dn.net/?f=12.4%20%3D%20150%5Ctimes%20tan%20%288.6%29%20-%20%5Cdfrac%7B9.8%5Ctimes%20150%5E2%7D%7B2u%5E2cos%5E2%288.6%29%7D)
![\dfrac{9.8\times 150^2}{2u^2cos^2(8.6)} = 10.29](https://tex.z-dn.net/?f=%5Cdfrac%7B9.8%5Ctimes%20150%5E2%7D%7B2u%5E2cos%5E2%288.6%29%7D%20%3D%2010.29)
![\dfrac{9.8\times 150^2}{2\times 10.29\times cos^2(8.6)} = u^2](https://tex.z-dn.net/?f=%5Cdfrac%7B9.8%5Ctimes%20150%5E2%7D%7B2%5Ctimes%2010.29%5Ctimes%20cos%5E2%288.6%29%7D%20%3D%20u%5E2)
![u = \sqrt{10959.34}](https://tex.z-dn.net/?f=u%20%3D%20%5Csqrt%7B10959.34%7D)
u = 104.68 m/s
The initial speed of the ball is u = 104.68 m/s
y = 11.3380m
<h3>What is Young's double-slit experiment?</h3>
The double-slit experiment is an experiment, that shows that light has both a wave nature or characteristic and a particle nature or characteristic, and that these natures are inseparable.
So, light is said to have wave–particle duality rather than be only a wave or only a particle. The same is true for electrons and other quantum particles.
According to the question,
The relative to angle θ, its adjacent side has length x and its opposite side is equal to width of the river, y;
tanθ =
= y = dtanθ
y =( 112m) tan (37.8° )
y ≈ 11.3380m
The width of river is 11.3380m
Learn more about Young's double-slit experiment here:
brainly.com/question/17167388
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Answer:
I think no because the critical properties distinguishing life is adaptation to changing environment and self replication of the information encoding the life process. Fire does not change its process to adapt to its environment, e.g. moving toward more fuel or storing and conserving fuel when it is in short supply.
Hope this help you!:)
Answer:
Explanation:
Given
Force P is acting upward
C is vertical contact Force
W is the weight of the crate
As P is unable to move the Block therefore Normal reaction keeps on acting on block
thus we can say that
P-W+C=0
P=W-C