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Leviafan [203]
3 years ago
13

Explain the following statement: In a windowless proportional counter, the output pulse height from an alpha particle source wil

l increase with increasing alpha energy whereas for beta particles the opposite is true.
Engineering
1 answer:
-BARSIC- [3]3 years ago
5 0

Answer / Explanation:

Regarding α and β Particles in Windowless Counter, the range of α particles is lower than β particles. Alpha particles typically have range less than the dimensions of the gas chamber so that proportional  counters are able to easily record. Hence,  with almost 100% efficiency, each particle which enters the so called active volume.

Then, since the pulse height spectra depends on the number of ion pairs which have formed,  an aplha particle with higher energy creates more ion pairs in the chamber.  However, beta particle range usually exceeds the dimensions of the chamber and therefore  most of the betas hit the walls where they deposit energy. Then, fewer ion pairs are formed  because very few β’s give their energy to the bulk gas.

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Verify if 83 is a term in the arithmetic sequence 11,15,19,23
EleoNora [17]

Answer:

yes, it is

Explanation:

The sequence: (+4)

23,27,31,35,39,43,47,51,55,59,63,67,71,75,79,83

Hope this helps! :)

3 0
3 years ago
Cutting and abrasive machining are the two major material processes. List the differences between Cutting tool and Abrasive mach
STatiana [176]

Answer:

Explained

Explanation:

Cutting tools:

 1. Cutting tools can either be single point or multi point.

2. Cutting tools can have variety of material depending on use like ceramics, diamonds, metals, CBN, etc.

3.Cutting tools have definite shapes and geometry.

Abrasive machining tools

1. Abrasive tools are always multi point tools.

2. Abrasive tools composed of abrasives bounded in medium of resin or metal.

3. They do not have definite geometry of shape

7 0
4 years ago
Twenty distinct cars park in the same parking lot every day. Ten of these cars are US-made, while the other ten are foreign-made
Zina [86]

Answer:

Total no. of ways to line up cars is 20! = 2.43 c 10^18

Probability that the cars alternate is 0.00001 or 0.001%

Explanation:

Since, the position of a car is random.Therefore, number ways in which cars can line up is given as:

<u>No. of ways = 20! = 2.43 x 10^18</u>

For the probability that cars alternate, two groups will be formed, one consisting of US-made 10 cars and other containing 10 foreign made. The number of favorable outcomes for this can be found out as the arrangements of 2! between these groups multiplied by the arrangements of 10! for each group, due to the arrangements among the groups themselves.

Favorable Outcomes = 2! x 10! x 10!

Thus the probability of event will be:

Probability = Favorable Outcomes/Total No. of Ways

Probability = (2! x 10! x 10!)/20!

<u>Probability = 0.00001 = 0.001%</u>

4 0
3 years ago
Airtight plugs are installed in the ends of large sizes of PVC conduit during bending to_____________.
Lana71 [14]

Airtight plugs are installed in the ends of large sizes of PVC conduit before bending to  A. prevent the conduit from collapsing when heated.

<h3>What is Airtight plugs?</h3>

Airtight plugs is necessary in the  PVC conduit so as to be able to avoid the collapse of conduit.

In this case, Airtight plugs are installed in the ends of large sizes of PVC conduit before bending to  A. prevent the conduit from collapsing when heated.

Learn more about Airtight plugs on:

brainly.com/question/20704252

#SPJ1

7 0
2 years ago
Animation can occur before an action
Slav-nsk [51]

Answer:Animation can occur before an action. Prepares the audience for the action. ... A pose or action should clearly communicate to the audience the attitude, mood, reaction or idea of the character. The effective use of long, medium or close up shots, as well as camera angles helps tell the story.

Explanation:May i have brainlist plz only if u wanna give me brainlist though have an nice day and stay safe.

6 0
3 years ago
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