in the detection of a submarine the time between the emission of the sonar pulse and its reflection back to the detector is 1.5 seconds. what is the distance of the submarine​

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what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

this would be about 43%