Q. An electron and a proton each have a thermal kinetic energy of 3×kBT/2. Compute the de Broglie wavelength of each particle at the temperature of 2050 K. (kb is Boltzmann's constant, 1.38×10-23 J/K).
Q. A diving board length = 6.00 that weighs 250 is supported by two pillars. One pillar is at the left end of the diving board; the other is distance = 1.60 away. Determine the magnitude of the force exerted by the left pillar while a 90 diver stands at the far end of the board.