Answer:
-11
Step-by-step explanation:
Answer:
om how can we do that show workings 15cm how can we show workings
Step-by-step explanation:
Cobalt has an atomic number (Z) of 27, which means the nuclei of all its isotopes have 27 protons. Cobalt 60 has an atomic mass of 60, so it has 60-27 = 33 neutrons.
The mass of 27 isolated protons plus the mass of 33 isolated neutrons would be:
27*(1.007825 u) + 33*(1.008665 u) = 60.497220 u
The actual mass of the nucleus of 60-Co is 59.933820 u.
Mass defect: 60.497220 u - 59.933820 u = 0.563400 u
The mass defect is equal to the binding energy of a nucleus.
using the fact that 1 u = 931.5 MeV/c^2
(0.563400 u)*(931.5 MeV/u) = 524.807 MeV
Move the constant to the right
5k=7-6
calculate
5k=1
solution: k=1/5 or k=0.2
Answer:
1,000
Step-by-step explanation:
10³ is the same as saying 10×10×10
This is equal to 1,000
Hope that helps!
