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Nuetrik [128]
3 years ago
10

Research is being done on the use of radio waves in destroying cancer cells. What type of frequency would be best used in this t

echnology?
Physics
1 answer:
shusha [124]3 years ago
8 0

Answer:

Radiofrequency Ablation (RFA) which is a type of Electrical Energy is used to treat cancer. If it sees heat made by radio waves to kill cancer cells. Ablation means destroying completely. The method is putting RFA a probe (electrode) that goes through the skin into the tumor. A CT scan is needed so to check that the probe is in exactly the right place. An electrode in the probe creates radiofrequency energy to produce heat and kill the cancer cells.

Explanation:

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egoroff_w [7]

The centripetal acceleration of an object is given by the relation,

Ac =V^2/R

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R = radius of rotation = 15 m

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3 0
3 years ago
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A 34.0 %-efficient electric power plant produces 800 MW of electric power and discharges waste heat into 20∘C ocean water. Suppo
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Answer:

77647

Explanation:

\eta = Efficiency = 34%

Power used in 1 home = 0.02 MW

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P=\dfrac{800}{\eta}\\\Rightarrow P=\dfrac{800}{0.34}\\\Rightarrow P=2352.94117\ MW

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2352.94117-800=1552.94117\ W

Number of homes would be given by

n=\dfrac{1552.94117}{0.02}=77647.0585\ homes

The number of homes that could be heated with the waste heat of this one power plant is 77647

8 0
3 years ago
I think I know the answer but I am not sure
Romashka [77]
The answer is a

Hope this helps!
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6 0
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As Earth moves around the Sun, its _____ is approximately perpendicular to the force of gravity exerted by the Sun.
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SORRY i forgot but i think its A because the sun has a really strong gravitational pull


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