The bond dissociation energy of a c-c single bond in a typical alkane is 347 - 377 kj/mol, meaning that to break a mole of such c-c bonds, it requires 347 - 377 kj of energy. this energy can be supplied by heat or by electromagnetic radiation. suppose that we want to break a c-c bond in a specific alkane with a bond dissociation energy of 359 kj/mol by a single photon, calculate the maximum wavelength of this photon. round your answer to three significant figures and units in nm.

Amerry-go-round of radius r, shown in the figure, is rotating at constant angular speed. the friction in its bearings is so small that it can be ignored. a sandbag of mass m is dropped onto the merry-go-round, at a position designated by r. the sandbag does not slip or roll upon contact with the merry-go-round. how would you rank the following different combinations of m and r on the basis of the angular speed of the merry-go-round after the sandbag "sticks" to the merry-go-round from largest to smallest. a) m = 10kg, r = 0.25r b) m = 20kg, r = 0.25r c) m = 10kg, r = 0.50r d) m = 10kg, r = 1.0r e) m = 15kg, r = 0.75r f) m = 40kg, r = 0.25r