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Oksana_A [137]
2 years ago
12

30 points please help a girl out! 

Physics
1 answer:
ziro4ka [17]2 years ago
5 0

the answer would have to be A tell me if im wrong



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The nuclear equation is incomplete. Superscript 239 Subscript 94 Baseline P u + Superscript 1 Subscript 0 Baseline n yields Supe
Crank

Answer:

The particle which completes the given equation  is :_{54}^{138}\textrm{Xe}

Explanation:

The given reaction is of a fission reaction:

_{94}^{239}\textrm{Pu}+_0^1\textrm{n}\rightarrow _{40}^{100}\textrm{Zr}+_Z^A\textrm{X}+2_0^1\textrm{n}

Total mass on the reactant side is equal to the total mass on the product side:

239 + 1 = 100 +A+ 2

A = 138

Sum of atomic numbers on the reactant side is equal to the sum of atomic number on the product side:

94 + 1(0) = 40 + Z + 2(0)

Z = 54

So atomic number 54 id of Xenon.

The particle which completes the given equation  is :

_{94}^{239}\textrm{Pu}+_0^1\textrm{n}\rightarrow _{40}^{100}\textrm{Zr}+_{54}^{138}\textrm{Xe}+2_0^1\textrm{n}

3 0
3 years ago
Metals are good conductors of electricity because __________ . A) they are easily reduced and oxidised. B) they are easily ionis
Advocard [28]

Answer:

a

Explanation:

because they are easily reduced and oxidised

3 0
2 years ago
If the energy of a photon is 1.32 × 10¯18 j, what is its wavelength in nm?
Katarina [22]
I think I remember hold on let me see if I can solve it
8 0
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A car of mass 1800 kg can be just be lifted. What is the least force that the electromagnet must use to lift the car? (1 g = 10
Doss [256]

Answer:

<h2>f=a×m</h2>

m=1800kg

1800000g×10N/kg

18000000N force is required to life the car

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The theory of light has been expounded differently by scientists in different periods of time. What is an important reason for t
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Technological advances clearly.

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