Answer:
4276.98 years
Explanation:
t = age of the sample in numbers of years
T = half life of the carbon-14 isotope = 5730 yrs
λ = decay constant of carbon-14
decay constant is given as
A₀ = activity of Carbon-14 in living plants
A = activity of Carbon-14 after time "t" = (0.596) A₀
Using the equation
t = 4276.98 years
Answer:
Explanation:
Let the internal resistance be r .
Since in open circuit the volt is 1.55 V , this will be the source voltage .
Source voltage = 1.55
If external resistance be R .
1.55 / (R + r ) = .500
R + r = 3.1 ohm
So sum of internal resistance and external resistance will be 3.1 ohm.
Answer:
folllow
Explanation:
soon soon gs a ayre j will join meet
To answer this question, we can use Newton's Second Law:
F = ma
We know that:
F = 20N
m = 0.25kg
So, we can plug what we know into the equation and isolate for the acceleration.
20 = 0.25a
a = 80m/s^2 which corresponds to answer A
