Answer:
No additional particle was produced during the decay.
Explanation:
The equation of decay is given as;
¹⁰₆C + ⁰₋₁ e → ¹⁰₅B + x
To identify x, we have to calculate its atomic and mass number.
In the reactants side;
Atomic Number = 6 + (-1) = 5
Mass number = 10 + 0 = 10
In the products side;
Atomic Number = 5 + x
Mass Number = 10 + x
Generally, reactant = product
Atomic Number;
5 = 5 + x
x = 5 - 5 = 0
Mass Number;
10 = 10 + x
x = 10 - 10 = 0
This means no additional particle was produced during the decay.
Answer:
The bulb will be generate only 30 Joules energy at 10 Second.
Explanation:
The formula to calculate the total number of Joules of energy by the light bulb is as follows:
E (Joules) = P (Watts) X t (seconds)
E = 60 W X 10 seconds
E = 600 Joules of energy
The total amount of energy generated by the light bulb every 10 Sec is 600 Joules. If the light bulb is only 5 % efficient , that would be 5% of the total.
600 J ×= 30 Joules
Of the total energy, the bulb will generate only 30 Joules energy at 10 Second.
Answer:
D earth formed 4.5 billion years ago.
The energy of an electromagnetic wave that has a wavelength of 4.2nm is 4.731 × 10-¹⁷ J.
<h3>How to calculate energy of a wave?</h3>
The energy of a wave can be calculated using the following formula:
E = hf
Where;
- E = energy
- h = Planck's constant (6.626 × 10-³⁴J/s)
- f = frequency of the wave
However, the frequency must be calculated first as follows:
λ = v / f
Where;
- λ = wavelength
- v = speed of light (3 × 10⁸m/s)
4.2 × 10-⁹ = 3 × 10⁸/f
f = 7.14 × 10¹⁶Hz
Energy = 6.626 × 10-³⁴ × 7.14 × 10¹⁶
Energy of the wave = 4.731 × 10-¹⁷ J
Therefore, the energy of an electromagnetic wave that has a wavelength of 4.2nm is 4.731 × 10-¹⁷ J.
Learn more about energy at: brainly.com/question/9624826
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