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Colour only applies to visible light. UV rays are not visible.
Visible light is part of the electromagnetic spectrum. The visible part has wavelengths of 7000 to 4000 Angstroms. The frequencies are 4.0 - 7.0 x 1014 Hz.
Without any other information, the one with a shorter wavelength/higher frequency will be visible light.
yes, visible rays have wave length from 7000-4000 and X-rays have 10-0.1 in angstroms
-- The source may be one that emits electromagnetic energy in the radio portion of the spectrum but little or no visible light. -- There may be material in the way, such as dust or gas, that absorbs visible light but doesn't absorb radio energy.
Yes, "reappear" is a verb. It means to appear again or to become visible after disappearing.
First things first, the word 'Appear' means to come into sight; become visible or noticeable, typically without visible agent or apparent cause. That's the definition you would find if you were to Google the word. Now, 'Reappear' means for the same thing to happen again, or again and again, that's what the origin of the prefix word "Re" means; and that is the prefix word to "Reappear". Hope this helps.
The Earth is on the other side of the Sun from the Pleiades at that time. From our perspective, the constellation is too close to the Sun to be visible.
As of August 2014, Jupiter will not be visible in the night sky. It will reappear in September 2015 in the southern sky near the constellation Leo.
Yes, you can but you have to be careful because hidden folders are usually required for the operating system. But you are sure that you can delete it safely, follow instructions. First, to delete a hidden folder you should have an administrator-type account, it's required. Second, hidden folders should be visible. To make them visible you have to choose in the explorer window: My Computer->Tools->Folder Options...-> tab "View". In the advanced settings list box choose Show hidden files and folders. Sometimes your account is not the folder/file owner the system will not allow you to delete it. In this case you have to take ownership of the folder/file and allow your account to have full access to the required files/folders.
If users are not deleting the files, they may be being moved by administrators. It is also possible that the files are not visible in the folders.
When you create a new user account you also start a new desktop which will contain new folders and files but none of your folders and files which the original user or you made which is the main reason for creating and adding a new user account so that all of each others work contained in folders and files doesnt become mixed up and difficult to find and also to keep your folders and files private to a particular user so if you cannot find your files click start and then click log off which will bring up a box asking for your input as to what you want to do you click onto switch user and then the files and folders which you are searching for will become visible and available to you.
Start -> Folder Options -> View Check: Show hidden files, folders, and drives Ucheck: Hide protected operating system files Now all the album art will be visible so you can simply delete and refresh the folder. Note: Don't forget to check the "Hide protected operating system files" after you are done. P.S. If this doesn't work, use the freeware Mp3tag.
Greater portions of the beach begin to appear during ebbing tides, until the maximum amount of beach is visible at low tide. This usually happens twice a day.
Yes
Reappeared means that something appeared again.
Matariki (Pleiades cluster) is only visible in the pre-dawn sky during certain times of the year. In May, it sets shortly after sunset and is not visible. By June, it rises before dawn and becomes visible again, marking the start of the MΔori New Year. This disappearance and reappearance are due to the Earth's orbit around the Sun and the changing position of the stars in the sky throughout the year.