Which process would correctly calculate the frequency of a wave? dividing speed by wavelength

dividing frequency by wavelength

multiplying frequency by period

dividing wavelength by period
SOMEBODY PLEASE ANSWER! This test determines my grade.

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?

Aa a of 22 m/s at an of 36.9 .be . a. b. c. (3)x y of? (3)go? (4) () it to to ?

Define the terms moral development and moral reasoning