Determine the change in velocity between 2.0 to 6.0 seconds. _ Group of answer choices

-1.6 m/s

-2.1 m/s

-9.5 m/s

What is the most useful equation for electric power?

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Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?