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What else can I help you with?
What is the distance from the rest position in a wave to the crest or trough?
Let us look at a cosine wave, described by y = A cos (b). When b = 0 degrees, y = A (<-- peak) When b = 90 degrees, y = 0 (<-- rest position of the wave) When b = 180 degrees, y = -A (<-- trough) When b = 270 degrees, y=0 (<-- rest position again) and so on. If we force A to be a function of time, then the wave becomes a standing wave (see the related link). The peak and trough will reverse their relative position for every half of a period. Regardless, the trough at any time and the rest position is still 90 degrees, or one quarter of a wavelength. ====================================
Why does a green t-shirt look green when viewed in white light?
White Light is made of all the colours of the spectrum (rainbow). If we look at something, say, green (like grass) it looks green to us because the chlorophyll in the leaves absorbs all the sunlight that lands on it with the exception of green light which it reflects. Therefore this green light that reflects into our eyes makes us see the grass as green. White objects, however, absorb no light and reflect all the colours back to us. As all the colours together make white light, we see the object (in your case, a T shirt) as white.
How does the mirror help us?
Mirrors assist us in various ways, such as providing reflection for personal grooming, trying on clothes, and checking our appearance before heading out. They also help with safety by allowing us to see our surroundings and potential hazards when driving or moving in reverse.
Why does green look green in white light?
the white light has many colours in it. this is called the spectrum. as the plant is green, it absorbs all the colours except green. green reflects off the plant, into our eyes and we see a green plant. the same would work with any object that reflects its own colour and no more. white objects reflect all light and black objects reflect no light.
Why, if the sun is a "green star," does it not appear green in the daytime sky?
The sun is not actually a green star; it is classified as a yellow dwarf star. The perception of the sun as white or yellow in the sky is due to its light being a combination of different colors, which appear white when mixed together. The Earth's atmosphere scatters the sunlight, making it appear white to us.
If I buy a 50mW green laser from Hong Kong will I be able to get it in the USA without problems from US customs?
Of cource not you will always have problems
What is the best laser college in US?
Laser Institute of America is regarded as the best laser college in the US.
How does a spouse get a green card if out of status?
By contacting USCIS and explaining their situation. Basically, there is no way to (legally) get a green card without going through US Customs and Immigration Services.
Is us ready with laser weapons?
no
How much is import tax from China to the US?
It depends on whats being imported. US Customs or a customs broker can help you.
When do I go through customs when leaving the US"?
You go through customs when leaving the US before boarding your international flight.
What river do you have to go trough in the US to go to Canada?
St Clair river
Can a wooden plaque be laser marked?
"no, a wooden plaque can not be laser marked because it woods and wood can not be laser marked. It will burn it u tried to laser marked it, so the best thing to do us not laser marked it."
When was the US welding company Laser Star founded?
The US welding company Laser Star was established in 1957 and has worked diligently to maintain excellence ever since by creating state of the art laser welding and laser marking equipment for it's clients.
When was US Customs Service created?
United States Customs Service was created in 1789.
When did US Customs Service end?
United States Customs Service ended in 2003.
What is the limit for personal gold jewelry when entering the US customs?
The limit for personal gold jewelry when entering the US customs is 8000.
