The star sirius is a distance of 8 light-years from the
The star Sirius is a distance of 8 light-years from the earth. If Sirius abruptly stopped shining, how much longer would it be seen on earth?
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a certain microwave oven produces microwaves of frequency 2450 mhz by a power of 500 w how long must it take to heat
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the star sirius is a distance of 8 light-years from the earth if sirius abruptly stopped shining how much longer would
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