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Dovator [93]
3 years ago
10

Please answer formula is in text

Physics
2 answers:
Travka [436]3 years ago
7 0

E=mc^2 n its given 1kg = 9x10^16J

so need to figure out the total mass loss n u can find the energy released

mass loss when 4x H atom combines to form 1x He atom in a fusion reaction is given as 4.59x10^-29kg

1 mole of He has 6.02x10^23 He atoms

so 2.7 moles of He has 2.7x6.02x10^23 He atoms

the total mass loss for 2.7 moles of He created in a fusion reaction

= 2.7x6.02x10^23 x 4.59x10^-29kg

= 7.46x10^-5kg

radiation energy released from this fusion reaction

= 7.46x10^-5 x 9x10^16J

= 6.7x10^12J

its 60 BILLION times more than burning carbon!!


wel3 years ago
4 0

For 1 mole of He, there are 6.022*10E23 of He atoms. 2.7 moles of He have:

2.7*6.022*10E23 = 1.626*10E24 atoms

For each He atom formed from fusion reaction of four H atoms, the mass loss is given as 4.59*10E-29kg

The total mass loss for 2.7 moles of He = 1.626*10E24 * 4.59*10E-29

= 7.46*10E-5kg

Energy released in a reaction with mass change is given as 9*10E16J per kg mass

So the total energy released from fusion reaction that has created 2.7 moles of He = 7.46*10E-5 * 9*10E16

= 6.714*10E12 Joules


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Answer:

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4) E_y(P) = -5.23850174216 N/C

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The given parameter of the point charge located at the center of a conducting shell

The charge of the point charge, q₁ = -8.9 μC

The inner radius of the shell, a = 2.8 cm

The outer radius of the shell, b = 4.1 cm

The charge of the conducting shell, q₂ = 2.2 μC

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1) The point P(8.5, 0)

V = k \cdot \dfrac{q_1 + q_2 }{r^2}

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E_x(P) = 9 \times 10^9 \times \dfrac{-8.9 \ \times 10^{-6} + 2.2 \ \times 10 ^{-6} }{(0.085 \ )^2} = -8.34602

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The y-component of the electric field = 0 N/C

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R₁ < r < R₂

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E_y(P) = -5.23850174216 N/C

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\sigma_b = \dfrac{Q}{A}  = \dfrac{2.2 \times 10^{-6} }{4\times \pi  \times 0.041^2 } \approx 1.041466 \ C/m^2

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\sigma_a = \dfrac{Q}{A_a}  = \dfrac{2.2 \times 10^{-6} }{4\times \pi  \times 0.028^2 } \approx 2.2330413 \ C/m^2

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