Light from three different lasers (a, b, and c), each with a different wavelength, was shined onto the same metal surface. laser b produced no photoelectrons. lasers a and c both produced photoelectrons, but the photoelectrons produced by laser a had a greater velocity than those produced by laser c. arrange the lasers in order of increasing wavelength.

Several processes form metal ore. match each process to its description. volcanic activity weathering hydrothermal energy rocks break down as they interact with air and water. arrowright density differences and other factors cause metals to concentrate in igneous rocks. arrowright seawater heats up from contact with hot rock, and metals dissolve in it. the water rises and contacts cooler water, causing metal ores to settle on the ocean floor. arrowright

What are similarities and differences between refraction, reflection, diffraction and absorption?

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone