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A material of unknown composition with an initial length of 3.6 m is found to expand by 0.44 mm when it is heated by 15 K. What is the coefficient of thermal expansion of this material? answer in ______ k^-1

A typical incandescent lightbulb has a filament temperature of approximately 2798 K. At what wavelength is the intensity of the emitted light highest? answer in (m)

Okay, so I need to fully reset and format my Nokia 1680. I have tried the *#7370# combination, as well as turning off the phone and then pressing and holding the green key+*+3. - none of it works. Can anybody help me out? What am I doing wrong? Is there any other way of resetting my phone? I...

How come that in the U.S they have all black or all jewish universities, but founding an all white university would be considered racist?