In the following situations a light is being directed towardsyou by the object d

Question

In the following situations a light is being directed towardsyou by the object described. In which of the following will you(the observer) see a HIGHER frequency (ablueshift) than what the source is emitting? Choose all thatapply.
A police car is moving towards you whiletraveling 50 mph. You are moving away fromit while traveling 40 mph. A fire truck is stationary. You aremoving towards it while traveling 40mph. An ambulance is circling you. You arestationary. A train is moving away from you whiletraveling 50 mph. You are moving away fromit while traveling 40 mph. A flying saucer is moving away from youwhile traveling 50 ft/min. You are movingaway from it while traveling 40ft/min. In the following situations a light is being directed towardsyou by the object described. In which of the following will you(the observer) see a HIGHER frequency (ablueshift) than what the source is emitting? Choose all thatapply.
A police car is moving towards you whiletraveling 50 mph. You are moving away fromit while traveling 40 mph. A fire truck is stationary. You aremoving towards it while traveling 40mph. An ambulance is circling you. You arestationary. A train is moving away from you whiletraveling 50 mph. You are moving away fromit while traveling 40 mph. A flying saucer is moving away from youwhile traveling 50 ft/min. You are movingaway from it while traveling 40ft/min. A train is moving away from you whiletraveling 50 mph. You are moving away fromit while traveling 40 mph. A flying saucer is moving away from youwhile traveling 50 ft/min. You are movingaway from it while traveling 40ft/min.

Explanation / Answer

You will see a blueshift in any situation where the distancebetween you and the source is increasing. This is true of thehighlighted situations below: . A police car is moving towards you whiletraveling 50 mph. You are moving away fromit while traveling 40 mph. A fire truck is stationary. You aremoving towards it while traveling 40mph. An ambulance is circling you. You arestationary. Atrain is moving away from you while traveling 50 mph. You are moving away from it while traveling40 mph. Aflying saucer is moving away from you while traveling 50 ft/min. You are moving away from it while traveling40 ft/min. A police car is moving towards you whiletraveling 50 mph. You are moving away fromit while traveling 40 mph. A fire truck is stationary. You aremoving towards it while traveling 40mph. An ambulance is circling you. You arestationary. Atrain is moving away from you while traveling 50 mph. You are moving away from it while traveling40 mph. Aflying saucer is moving away from you while traveling 50 ft/min. You are moving away from it while traveling40 ft/min. Atrain is moving away from you while traveling 50 mph. You are moving away from it while traveling40 mph. Aflying saucer is moving away from you while traveling 50 ft/min. You are moving away from it while traveling40 ft/min.

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