The speed of the stream's current is 3.6 m/s.
The given parameters:
- distance between the two flags, d = 100 m
- time when it passed the first flag, t₁ = 2:15
- time when it passed the second flag, t₂ = 2:43
<h3>What is speed?</h3>
- The speed of an object describes the rate of change of an object's distance.
The change in the time of motion of the barrel is calculated as follows;
Δt = t₂ - t₁
Δt = 2:43 - 2:15
Δt = 2 min 43 s - 2 min 15 s
Δt = 43 s - 15 s
Δt = 28 s
The speed of the stream's current is calculated as follows;
Thus, the speed of the stream's current is 3.6 m/s.
Learn more about speed here: brainly.com/question/6504879
Answer:
we humans require 20 different amino acids to maintain good health and functioning.
Explanation:
People must obtain 9 of these amino acids called essential amino acids for ex. through food.
Answer:
the phenotype of the height of the plants would be all tall since there is a dominant allele in every genotype
Answer is: True!
The make up of carbohydrates is: C6H12O6
Carbohydrates are essential in almost all living things
Answer:
Two recessive genes for attached earlobes
Explanation:
For a recessive trait to be displayed, it must mean that the individual does not possess a dominant allele that would be expressed instead of the recessive allele. Therefore, Ashley must have two copies of the recessive genes to have attached earlobes. Possessing one or two dominant genes for free earlobes would mean that she would have free earlobes.
This can also be visualised with a punnet square, see attached image. We know the parents carry a recessive allele but have free earlobes, so they must have the genotype Ff. The punnet square shows 3 genotypes are possible
FF, which would give free ear lobes
Ff, the same genotype as her parents, free earlobes
and ff, which would give attached earlobes.
