Question

Ormithologlsts have determined that some species of birds tend to avolid fights over large bodies of water during daylight hours. It is belleved that more energy is required to fly over water than land because rises over land and falls over water during the day. A bird with these tendencies is released from an island that is 4 km from the nearest point 8 on the shoreline, es to a point c on the shoreline, and then shoreline to its nesting area D. Assume that the bird Instinctively chooses a path that will minimize its energy expenditure. Points B and D are 14 km apart (Round your answers to two decimal places.) (a) tn general, rttakes 1.З times as much energy tony over water as land, to what point C should the bird ny in order to minnize the total energy expended in returning to its nesting area? km from B (b) Let W and L denote the energy (in joules) per kilometer flown over water and distance from 8 to C k land, respectively. Assuming the bire's energy expenditure is minimized, determine a function for the ratio w/t in terms (e) What should the value of W/L be in order for the bird to fy directly to its nesting area o? that birds ofあcertain species reach the shore at衋point 2 km frem a. how many times more energy does it take bird tony over wster than land?

Answer 1

ohih oed So we nud to meoimy 프。 1-697-1

2 mini yes than -う レ 1 04 レ