Answer:
209.68 years
Explanation:
Let T be the half life.
t = 1 year
N = 99.67 % of No = 0.9967 No
Use the law of radioactivity
N = No x e ^(- λ t)
Where, λ is decay constant.
λ = 0.6931 / T
So,
0.9967 No = No x e^(- λ t)
0.9967 = e^(- λ t)
e^( λ t) = 1 / 0.9967 = 1.0033
λ t = 3.3 x 10^-3
(0.6931 x 1) / T = 3.3 x 10^-3
T = 209.68 years
Thus, the halflife is 209.68 years.
Bonds between atoms are formed
<span>This statement is true that Investigations provide large amounts of information about a wide range of variables.
We investigate to collect the information about all the variables, then we correlate the information of different variables to get some common information. And, with this information, we further process to achieve the required goal.
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Answer:
it is condensing , intermolecular forced are getting stronger
Explanation:
condensation is gas to liquid and intermolecular forces are attaction and liquid molecules are colser together so they have more intermolecular forces hope this helps god bless
Answer:
d = 1.30 mm
Explanation:
given,
wavelength of the light source (λ)= 502 nm
slits is separated (d) = ?
distance to form interference pattern(D) = 1.35 m
20 th fringe
y = 10.4 mm = 0.0104 m
now,separation between to slits
where y is the fringe width
d = 1.30 mm
separation between to slits is equal to d = 1.30 mm
