2.49.* On July 2, 1982, Larry Walters attached 42 helium-filled weather balloons to a lawn chair, sat in it, and took a balloon ride high over Los Angeles [11]. People who saw him were amazed; air traffic controllers were dumbfounded. Estimate the diameter of the individual weather balloons, which are assumed to be spherical and to all have the same diameter. Assume that Mr. Walters, plus the lawn chair, plus the ropes, the empty balloons, and miscellaneous things he the took along had a weight of 200 lbf.

2.49.* On July 2, 1982, Larry Walters attached 42 helium-filled weather balloons to a lawn chair, sat in it, and took a balloon ride high over Los Angeles [11]. People who saw him were amazed; air traffic controllers were dumbfounded. Estimate the diameter of the individual weather balloons, which are assumed to be spherical and to all have the same diameter. Assume that Mr. Walters, plus the lawn chair, plus the ropes, the empty balloons, and miscellaneous things he the took along had a weight of 200 lbf.