Electron Cloud and nuclei
Most of the mass is located in the nucleus as suggested by Rutherford's gold foil experiment.
By unplugging unused devices, by turning off any unused lights, and by switching your lightbulbs to something more energy efficient.
Answer:
Wave theory of light explains the phenomena of interference, diffraction, scattering, dispersion, polarisation etc. Complete solution: Around 1700, it was concluded by Newton that light was a group of particles. It was called corpuscular theory.
Speed =distance/time
3.25=3.00/time
3.25xt=3.00
t=3/3.25
s=0.9s
