А is when the telegraph operator connects the circuit than
quickly let's it go?
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zero
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one

This drawing shows a human body system. what is the primary function of this body system?

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.