Two samples of carbon come into contact. A heat transfer will occur between sample A and sample B. What must be true for heat
to transfer from sample A to sample B?
Th
e n Linntin norra A i
raster than that of R

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.