The energy of a photon is proportional to the speed of light and inversely proportional to the wavelength. The constant of proportionality is Planck's constant, <span>6.626 * 10^-34 Js</span>
E = hc/ {wavelength}
E = [ 6.626 * 10^-34 Js * 2.997 * 10^8 m/s ] / 0.124 m
E = 1.60 * 10^-24 J
34. The element would have 34 protons. Also 34 electrons.
Answer:A
Explanation:
I just did the same question on usatestprep
No, only average speed can be calculated from the distance of 90 meters and the time 3 seconds hope this helps
