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Aliun [14]
4 years ago
10

Which are methods of reducing exposure to ionizing radiation? Check all that apply

Physics
2 answers:
Aloiza [94]4 years ago
7 0

Answer: a,d,e

Using a lead apron during medical X-rays

Using a short burst of X-rays to take an image

Taking an image of the smallest possible area

Explanation:

MariettaO [177]4 years ago
6 0
Ionising radiation (ionizing radiation) is radiation that carries enough energy to free electrons from atoms or molecules, thereby ionizing them. Ionizing radiation is made up of energetic subatomic particles, ions or atoms moving at high speeds (usually greater than 1% of the speed of light), and electromagnetic waves on the high-energy end of the electromagnetic spectrum.
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In energy production, possible sources are fossil fuels like coal, petroleum and natural gas. Other sources are renewable like hydro, solar and wind. Radioactive elements are also possible sources for nuclear energy. However, energy will always dissipate. Industries could never get 100% of the energy from their sources. In ideal cases like the Carnot engine, we can only get 60% of the energy. That is ideal. In actual, we get even lesser than this for about 40%. 

When the efficiency is 60%, the used energy is 60%, while the wasted energy is 40%. Therefore, the wasted energy is

1000 BTU (0.40) - 400 BTU

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3 years ago
Which of the following statements are true? Check all that apply.
lidiya [134]

We have 6 levels and we will verify which of them is true.

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Therefore this statement is TRUE.

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According to the properties of charges, the opposite charges attract each other and similar charges repel each other

Therefore this statement is  TRUE

<em>C) Two positive charges attract each other.</em>

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<em>D ) Two negative charges repel each other.</em>

Using the same principle as the two previous statements, two equal charges repel each other.

Therefore this statement is TRUE

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<em>F) A neutral object contains no charge.</em>

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3 years ago
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Explanation:

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The cube with 2.00m wide and 2.00m long and 2.00m high has a weight of 960.00 N what pressure does it exert
andre [41]
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