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N76 [4]
3 years ago
5

Recent technological developments like high-resolution satellite imagery and diagnostic positron emission tomography (PET scans)

have refined and extended the camera’s capacity to provide information. Which passage assertion does this information support most strongly?
Physics
1 answer:
mixas84 [53]3 years ago
8 0

Answer:

D) Photography can be used to both control and benefit society.

Explanation:

High-resolution satellite imagery and diagnostic positron emission tomography (PET scans) have been used to both control and benefits the society in the sense that it has helped to take records of information of crime, traffic offenders such drunk drivers and over speeding drivers, e.t.c. it helps control by given their information and automatically penalizing them or ensuring the agency penalized them and also benefit the society by preventing people from committing crime thereby, protecting them from offenders.

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A train travelling at 20 m/s has 2 000 000 J of kinetic energy. What is the mass of<br> the train?
Svetlanka [38]

Answer:

<h2>10,000 kg</h2>

Explanation:

The mass of the train can be found by using the formula

m =  \frac{2k}{ {v}^{2} }  \\

k is the kinetic energy

v is the velocity

From the question we have

m \frac{2(2000000)}{ {20}^{2} }  =  \frac{4000000}{400}  =  \frac{40000}{4}  \\

We have the final answer as

<h3>10,000 kg</h3>

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Explain how thermal conductivity occurs in poor conductor materials​
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Answer:

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3 years ago
50g of ice at 0°C is mixed with 50g of water at 80°C, what will be the final temperature of a mixture in
xxTIMURxx [149]

Answer:

0° C

Explanation:

Given that

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Mass of water, m(w) = 50g

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Temperature of water, T(w) = 80° C

Also, it is known that

Specific heat of water, c = 1 cal/g/°C

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4000 + 50T = 4000 - 50T

0 = 100 T

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2 years ago
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The kinetic energy (KE) is 250 J and the gravitational potential energy (GPE) is 392 J
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