Todd wants to fly his helicopter 177 meters, from one side of a field to the other. His helicopter has enough battery power remaining to fly for 3,600 seconds. If he flies the
helicopter at a constant velocity of 10.0 meters per second to the west, how long will it take
the helicopter to cross the field?
Write your answer to the tenths place.
seconds

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally