The density of a string was increased by a factor of two. how will the new wavelength be different from original wavelength?

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What is the rate of change in a objects position?

Asatellite with an orbital period of exactly 24.0 h is always positioned over the same spot on earth. this is known as a geosynchronous orbit. television,communication, and weather satellites use geosynchronous orbits. at what distance would a satellite have to orbit earth in order to have a geosynchronous orbit?