when we stand near the street lamp we receive verticl light rays whuch form a shorter shadow than that formed by slanting light rays
1. A street lamp weighs 150 N. It is supported by two wires that form an angle of 120.0 degrees with each other.?
a. I would very much like to show you how it is done but to enable me to make you understand we need a diagram of the forces involved. The weight of the lamp of 150N is the resultant of the force T on each wire. If you can manage to draw the forces, you will see that T =//sin30=150N. b. At 90 degrees, T=150sin45=106N. The work will not be easy to understand if you do not have the diagram.
2. The wavelength of the blue light given off by a mercury vapor street lamp is 436 nm. What is the frequency of?
E = h c / wavelength h is Planck's consistent, c is the speed of sunshine in m/s and wavelength will be expressed in meters The E that you calculate is in accordance to photon. So multiply the consequent quantity by technique of technique of Avogadro's quantity, and also you are finished
3. Street lamp at night goes off when AC comes on?
The reality is that your area's electric provider's infrastructure is inadequate; They are not going to put very much money into something that the city or county says has to be on......and you must be at the end of the line... you do not have any ownership of the street light except for the taxes the household pays. When your a/c creates a demand and a power surge the light has to restart due to the momentary voltage drop. It possibly could be alleviated by having the power company place your service drop in the line after the street light or have the city place the street light on a different service line.
4. Calclulus - Related Rates: A 6-foot-tall woman is walking at the rate of 4 ft/sec away from a street lamp ....?
Draw a right angled triangle ABC, where
5. why does a sodium street lamp give off a different color than a neon light?
Sodium and neon as elements do not have the same electronic structure, not only in terms of number of electrons, but the energy levels at which the orbitals lie. When light is given off by a lamp, what you are seeing is the emission of energy which the electrons in the atoms had adsorbed to move up to higher energy orbitals from lower ones. Since the difference in those levels is different in neon and sodium, the wavelength of the light emitted will be different.
6. How much electricity does a street lamp use?
Probably about 100 watts
7. The past 2-3 years whenever I walk or drive under a street lamp it has sometimes gone out. What's it mean?
Common. Just means you walk around streetlamps, and you have a confirmation bias to notice when they shut off, which is actually very seldom statistically speaking. I used to notice that. I do not anymore. Probably has a lot to do with the age and type of street lights around you. Some routinely shut off on a frequent basis temporarily (they are not burning out), maybe older ones do that more. Not only are you not the first, I am not even the first, I read about this phenomenon many years ago.
8. would You rather be a Street-LAMP or a LAMP-Shade?
A street lamp cause i love being outside, i think i would die if i had to stay in the house 24/7. But then again a lampshade would have more fun....seeing everyside of it's owners lol ;)
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