Examlex
If a galaxy has a radial velocity of 8000 km/s and the Hubble constant is 70 km/s/Mpc, what is the distance to this galaxy?
Stylus
A pen-shaped device used to tap or write on touch-sensitive screens.
Input Device
A hardware device used to enter, or input, data (text, images, and sounds) and instructions (user responses and commands) into a computer.
Pen
A common writing instrument used for applying ink to a surface, typically paper, for writing or drawing.
Binary Language
The fundamental language of computers, consisting of just two numbers, 0 and 1, to represent all types of data and instructions.
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