A person stands on a square pedestal whose side lengths are 1.20 m. The person and pedestal together weigh 1.84 x 103 N.
What is the pressure the person and pedestal exert on the
floor in Pa?
a 1.84 103 Pa
b 1.44 103 Pa
C 1.28 x 104 Pa
d 1.28 103 Pa

Your answer is C. Hope I helped!!!

the answer is true. hope it .

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