For the wave of light you generated in the part b, calculate the amount of energy in 1.0 mol of photons with that same frequency (6.8×109 hz ) and wavelength (0.044 m ). recall that the avogadro constant is 6.022×1023 mol−1. express the energy in joules to two significant figures.

Ablue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.5 m/s 2 . a green car arrives at the position of the stop-light 6.5 s after the light had turned green. if t = 0 when the light turns green, at what time does the green car catch the blue car if the green car maintains the slowest constant speed necessary to catch up to the blue car? answer in units of s.