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dexar [7]
4 years ago
9

If an unshielded sample of radioactive material emits alpha particles, what effect will it have on a person sitting in the next

room? (Assume the wall between rooms is composed of concrete.)
Chemistry
2 answers:
Flauer [41]4 years ago
7 0
Alpha radiation can only travel a few centi-metres in air and can be stopped (or absorbed) by a sheet of paper. Alpha particles can only penetrate a very thin sheet of paper and is totally blocked by the concrete. As these particles move through the air, it loses energy from the collisions with air molecules making it less penetrating.<span>
 
On the other hand:
Beta radiation can travel a bit further, around tens of centi-metres in air so a thicker substance is required to absorb the radiation. It can be stopped by a thin sheet of aluminium.

Gamma radiation however can travel for many meters so it requires a material much thicker to absorb it.</span>
o-na [289]4 years ago
5 0

Answer:

None, because the wall will block the radiation.

Explanation:

on edge

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Ilia_Sergeevich [38]

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Following are the solution to this question:

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If the draw a line perpendicular with y-axis thru the diagonal line check but it meets only one curved point, therefore the curve indicates a function not otherwise.  They draw a vertical line perpendicular to the y-axis there, it just intersects one more chart point, which is why a graph is a feature:

In point a:

\to Domain= [-\pi ,\pi ]\\\\\to Range = [-1,1]

In point b:

Its y-axis length cut also by understanding the benefits of y-interception and the x-axis length gives the x-intercept.  

\to y-intercept = 1\\\\\to x-intercept = \frac{\pi}{2} ,- \frac{\pi}{2} \\\\

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