Precisely 3.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.10 m/s2 , how much time passes before the police car overtakes the speeder after the speeder passes (assumed moving at constant speed)? t t = 3 s

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

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