Discover Questions

How much energy (in J) is contained in 1 mole of photons with a wavelength of 44 cm? pleaseeeee give the answer in two sig figs , urgent? Is HCN or H3O+ a stronger acid? Given s=2 cos wt-5 sin 3t, what are the equations for the first and second differential? Is the Earth round or flat? . If a car traveling 50 mph can stop in 110 ft, how many feet will it take the same car to stop when it is traveling 100 mph?