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3 years ago

10

The amount of atomic particles released by a radioactive material in a specific time is determined by

2 answers:

shepuryov [24]3 years ago

8 0

The amount of atomic particles released by a radioactive material in a specific time is determined by the strong and the weak nuclear force. It is these forces that holds the nucleus of the atom and the force that needs to be overcome with to allow radioactive decay.

Georgia [21]3 years ago

6 0

The best answer is A. Strong and weak nuclear forces

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The diagram below shows part of the rock cycle. (6 points)

Anna35 [415]

Answer:

Igneous Rock

Explanation:

Assuming this is a cycle, the volcanic eruption would lead back to rock B; rocks formed by volcanic eruptions are considered Igneous.

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2 years ago

Which metalloid is often found in microchips, semiconductors, and sand?a. boron b. arsenic c. germanium d. silicon

elena-14-01-66 [18.8K]

Answer:

silicon

Explanation:

Silicon. Silicon is often found in electronic devices, as well as the sand.

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2 years ago

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Heat is transferred by conduction through a wall of thickness 0.87 m. What is the rate of heat transfer if the walls thermal con

erik [133]

Explanation:

The given data is as follows.

Thickness (dx) = 0.87 m, thermal conductivity (k) = 13 W/m-K

Surface area (A) = 5 $m^{2}$ , $T_{1} = 14^{o}C$

$T_{2} = 93^{o}C$

According to Fourier's law,

Q = $-kA \frac{dT}{dx}$

Hence, putting the given values into the above formula as follows.

Q = $-kA \frac{dT}{dx}$

= $-13 W/m-k \times 5 m^{2} \times \frac{(14 - 93)}{0.87 m}$

= 5902.298 W

Therefore, we can conclude that the rate of heat transfer is 5902.298 W.

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3 years ago

I need help with this problem !

Sloan [31]

Answer:

3

Explanation:

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3 years ago

Which of the following statements are not scientific hypotheses?

ss7ja [257]

Answer:

.

Explanation:

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3 years ago

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