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san4es73 [151]
3 years ago
6

Which best explains how radiation is helpful in the plastics industry?

Chemistry
2 answers:
tatiyna3 years ago
7 0

Answer:

It makes the plastic a lot easier to shape, because it doesn't burn it.

Explanation:

Lynna [10]3 years ago
6 0
Radiation has optimized a number of process in the plastics industry.  Infrared emitters are the devices that uses radiation which are used in the said industry. These are devices which could be adjusted precisely depending on the product and the process. These emitters can make plastics welding within seconds.  And since they can be adjusted precisely, it saves a lot of time, space and of course energy.
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What is the highest energy to which doubly ionized helium atoms (alpha particles) can be accelerated in a DC accelerator with 3
pentagon [3]

Answer:

Highest energy will be equal to 9.6\times 10^{-13}J

Explanation:

Charged on doubly ionized helium atom q=2e=2\times 1.6\times 10^{-19}C=3.2\times 10^{-19}C

It is accelerated with maximum voltage of 3 MV

So voltage V=3\times 10^6volt

Now energy is given by E=qV=3.2\times 10^{-19}\times 3\times 10^6=9.6\times 10^{-13}J

So highest energy will be equal to 9.6\times 10^{-13}J

5 0
3 years ago
Calculate the density mass= 54.2 volume= 78.1
Helen [10]

Answer:

0.693 (you can round it up if you want to)

Explanation:

Density= mass ÷ volume

54.2 ÷ 78.1 = 0.693

I hope this helped☺

6 0
2 years ago
What is the density of an object with a mass of 40.0 g and a volume of 80.0 cm3
Komok [63]
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8 0
3 years ago
Part A
velikii [3]

Answer: The layers are ordered by density, with the least dense layer on top, and the densest layer on the bottom.

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Plato

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What is the speed of sound in dry air at 20°C?
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