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Gre4nikov [31]
3 years ago
10

This version of Einstein's equation can be used directly to find what value? `Δm = E/c^2

Chemistry
2 answers:
Oksana_A [137]3 years ago
7 0

Explanation:

In the given version of an Einstein's equation:

\Delta m = \frac{E}{c^2}

\Delta m = Mass defect

E = Nuclear binding energy of an atom which holds the nucleus of an atom together.

c = speed of the light =3\times 10^8 m/s

From the given version one can determine the mass defect which is a binding force of a nucleus in an atom if nuclear binding energy is known.

Marina86 [1]3 years ago
4 0

<u>Answer</u>

mass


<u>Explanation</u>

E=mc² explains nuclear fusion, how matter can be destroyed and converted to energy and energy can be converted back to mass.

It explains the atomic energy produced by nuclear power plants and the atomic energy released by atomic bombs.

E=mc²

m = E/c²

From the version in the question the value to be found directly is mass.

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avanturin [10]

B. 11,540

<h3>Further explanation </h3>

The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.  

Usually radioactive elements have an unstable atomic nucleus.  

General formulas used in decay:  

\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{t/t\frac{1}{2} }}}

T = duration of decay  

t 1/2 = half-life  

N₀ = the number of initial radioactive atoms  

Nt = the number of radioactive atoms left after decaying during T time  

Nt=25 g

No=100 g

t1/2=5770 years

\tt 25=100\dfrac{1}{2}^{T/5770}\\\\\dfrac{1}{4}=\dfrac{1}{2}^{T/5770}\\\\2=T/5770\rightarrowT=11540~years

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3 years ago
Making wire from a block of copper.<br><br> Physical Change<br> or<br> Chemical Change?
8090 [49]

Answer:

physical

Explanation:

3 0
3 years ago
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A diver has a lung capacity of 2.4 L when the pressure is 0.8 atm. What is the volume of the diver’s lungs when the pressure cha
tangare [24]

Answer:

The final volume is 1.6 L.

Explanation:

It is given that,

A diver has a lung capacity of 2.4 L when the pressure is 0.8 atm. We need to find the volume of the diver’s lungs when the pressure changes to 1.2 atm. Let V₂ is volume.

It is based on Boyle's law. According to this law,

PV=K

K is constant

P_1V_1=P_2V_2

V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{0.8\times 2.4}{1.2}\\\\V_2=1.6\ L

So, the final volume is 1.6 L.

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3 years ago
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kodGreya [7K]

Answer:

What is the net ionic equation for a reaction between HCl and NaOH?

Explanation:

A salt is a neutral ionic compound. Let's see how a neutralization reaction produces both water and a salt, using as an example the reaction between solutions of hydrochloric acid and sodium hydroxide. The overall equation for this reaction is: NaOH + HCl → H2O and NaCl

Hope that helped.

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3 years ago
Al comenzar la reacción: N2(g) + 2O2(g) ------&gt; 2NO2(g) existe 1 mol de N2 y 2 moles de O2 y al
miss Akunina [59]

Answer:

65

Explanation:

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