1. The amount of energy carried by the wave is related to the Amplitude of the wave.
2. A mechanical wave requires an initial energy input, Once this initial energy is added the wave travels through the medium until all it's energy is transferred.
All machines are not 100% efficient because of <span>C. Friction</span>
Answer:
2.7067 eV
Explanation:
h = Planck's constant = 
c = Speed of light = 
= Threshold wavelength = 459 nm
Work function is given by

Converting to eV


The work function W0 of this metal is 2.7067 eV
Answer:
if i do give me brainliest ok ok
Explanation:
It would be A they model all of earths surfaces because that’s why it was made it was to show the world in a smaller form.