Answer:
Solar and geothermal energy are both considered renewable energy sources. ... Nuclear energy produces nuclear waste, while solar and geothermal energy do not produce a significant amount of waste.
Answer:
t = ln (N/N°)/(-0.0239)
Explanation :
The decay law is represented as
N = N°e^-kt
Where N is the final number of atom,
N° is the initial number of atoms
k is the decay constant
t is the half-life.
From the above we have,
N/N° = e^-kt
take ln of both sides
ln (N/N°) = -kt
t = ln(N/N°)/-k
At half life, N/N° = 1/2
Therefore, t = (ln 1/2)/-k
t = -0.693/-k
But t = 29 sec
29 = -0.693/-k
k = 0.0239 s^-1
Therefore,
The formula will be
t = ln (N/N°)/(-0.0239)
Answer:
hygienic gvt gvj jo the gravity high quality 4
This cycle is called the carbon cycle.
Answer: The chances that the baby will have type O is 25%
Explanation: Both the male and female are heterozygous for type B blood, this means that they both have one dominant allele for type B blood and one recessive allele for type O blood. Remember that in the ABO blood system, The alleles for type A and B are dominant while the allele for type O blood is recessive.
This means that the genotypes of both parents for type B blood is BO.
BO x BO = BB, BO, BO, and OO.
Phenotypically, BB and BO will manifest as type B blood while OO will manifest as type O blood.
From the cross between the two parents, one out of the four offsprings has type O blood, therefore the chances of a child having type O blood is 1/4 x 100 = 25%.
See the attached punnet square for further information