3 years ago

Half-Life refers to radiation levels true or false

Physics

1 answer:

o-na [289]3 years ago

3 0

Answer:

True

Explanation:

Because half life is the length of time it takes for the,half of the radioactive atoms of a specific radionuclied to decay.

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nlexa [21]

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weqwewe [10]

$\large \mathfrak{Solution : }$

let's use first equation of motion to solve this ;

$\boxed{ \boxed{ v = u + at}}$

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3 years ago

A sample of a gas in a rigid container has an initial pressure of 1.049 kPa and an initial temperature of 7.39 K. The temperatur

Setler79 [48]

Answer: 4.358 kPa

Explanation:

The gas is contained within a rigid container, so the volume of the gas is constant. Therefore, we can use Gay-Lussac's law, which states that:

"for a gas kept at constant volume, the pressure and the absolute temperature are directly proportional"

In formulas:

$\frac{P_1}{T_1}=\frac{P_2}{T_2}$

where:

$P_1 = 1.049 kPa$ is the initial pressure

$T_1 = 7.39 K$ is the initial temperature

$P_2$ is the final pressure

$T_2 = 30.70 K$ is the final temperature

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Cold to warm is the correct answer.

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