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Veronika [31]
3 years ago
10

What is the angular velocity of the second hand on a clock? (Hint: It takes the second hand 6060 seconds to rotate 2π2π radians.

Divide the number of radians by the number of seconds so that your answer has units of radians/second.)

Physics
1 answer:
notsponge [240]3 years ago
8 0

Explanation:

Below is an attachment containing the solution.

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old stars obtain part of their energy by the fusion of three alpha particles to form a 12/6c nucleus, whose mass is 12.0000 u. H
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Answer:

11.6532 x 10⁻¹¹ J or 7.3 MeV is given off

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Mass of an alpha particle = 4.0026u,   ∴ mass of three = 12.0078u

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Mass of three alpha - Mass of Carbon nucleus

12.0078u - 12u = 0.0078u

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Now that we know Mass(m) = 1.2948 x 10⁻²⁷ and Speed (c) 3 x 10⁸ m²s⁻²

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E = (1.2948 x 10⁻²⁷) (3 x 10⁸ m²s⁻²)²

E = (1.2948 x 10⁻²⁷) (9 x 10¹⁶) J

E = 11.6532 x 10⁻¹¹ J

Or, if you need your energy in MeV

1 MeV = 1.60x10⁻¹³ J

Just do the conversion by dividing 11.6532 x 10⁻¹¹ J by 1.60x10⁻¹³ J

It will give you 7.3 MeV

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4 years ago
Read 2 more answers
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