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KiRa [710]
3 years ago
13

Which nuclear emission has the greatest penetrating power

Physics
1 answer:
velikii [3]3 years ago
3 0

Answer:

<em><u>Gamma γ radiations has the highest penetrating power,</u></em> of all the nuclear emissions.

Explanation:

The three major types of nuclear emissions are <em>alpha (α), beta (β)</em> and <em>gamma </em>radiations. Of all three, gamma (Υ) radiations have the highest penetrating power (only shielded by lead and concrete), owing to its lack of mass and charge.

It also has a low ionization power and so does not interact well with matter. IT has vast application in cancer treatment and sterilization mechanism.

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George walks to a friend's house. He walks 850 meters north before he realizes he walked too far.
anyanavicka [17]

Answer:

<h2>44 m/s</h2>

Explanation:

In this problem we are expected to calculate the velocity of Georges movements.

Given data

Total distance covered by  George= 850+250= 1100 meters

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We know that velocity is, v= distance/ time

Therefore substituting our data into the expression for velocity we have

v= 1100/ 25= 44 m/s

Hence the velocity in m/s is 44

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3 years ago
A force of 30 N is applied to an object with a mass of 15 kg. What is the resulting acceleration?
svet-max [94.6K]

Answer:

We know that Force = mass × acceleration

By substituting the values we get,

30 N = 15 kg × a (where a is acceleration)

Or we can write it as

15 kg × a = 30 N

Transposing 15 to RHS,

a = 30 ÷ 15 m/s²

Therefore, acceleration = 2 m/s²

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