<span>First, she should put the sample in a test tube and place it in a centrifuge. This would cause the red blood cells to move to the bottom because of their higher density. Next, she would be able to decant the plasma and analyze it separately from the red blood cells.</span>
Answer:
0.25 A
Resistance= 40 ohms
Explanation:
The first, and perhaps most important, the relationship between current, voltage, and resistance is called Ohm's Law, discovered by Georg Simon Ohm and published in his 1827 paper. Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Introducing the constant of proportionality, the resistance, one arrives at the usual V=IR. Any Electrical device or component that obeys “Ohms Law” that is, the current flowing through it is proportional to the voltage across it ( I α V ), such as resistors or cables, are said to be “Ohmic” in nature.
Since we are not in a laboratory, we can not experimentally measure the current but it can be calculated from ohm's law.
Given that the four resistors are connected in series and
Req= R1 + R2 + R3 + R4
Since all are four ohm resistors
Req= 10 + 10+10+10 = 40ohms
Then;
V= 10 V
R= 40ohms
I= ???
From;
V=IR
I= 10/40
I= 0.25 A
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The surgery would not be a hip replacement but would be resetting the broken bone with pins ad wires at late-stage Alzheimer's disease.
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Answer:
q = -1.61x10⁻¹⁷ C
Explanation:
The charge of the particle can be found using the definition of the work done by electric force:
(1)
<u>Where</u>:
q: is the charge
ΔV: is the difference in electric potential
The work is also equal to:
(2)
<u>Where</u>:
and 
are the electric potential energy of the points A and B, respectively.
Now, by conservation of energy we have:
(3)
<u>Where</u>:
and 
are the kinetic energy of the points A and B, respectively.
Rearranging equation (3):
Solving the above equation for q:
Therefore, the charge of the particle is -1.61x10⁻¹⁷ C.
I hope it helps you!
