The answer is C. the earths mantle because the wood in this case is the surface
bhdfbvhfdbvhhfhvfhdf vfdhybvghbhdf
Answer:
what do I answer? not enough information
Answer: 9.98 *10^-19 J
Explanation: In order to explain this probelm we have to consider the balance enegy for photoelectric effect.
h*f-W=Ek where h is the Planck constant and W the work function and Ek the kinetic energy. f is the frequency of light.
W=h*f-Ek=6.62*10^-34*2.4*10^15-5.9*10^-19=9.98*10^-19J
Helium atom, in other words, it consistis of a particle having four protons and two neutrons.
