Answer:
<em>C</em>
Explanation:
<em>Tennis would belong to net wall games .</em>
Answer:
B. nuclear fusion
Explanation:
Atomic fusion is a process in which two or more lighter nuclei combine to form a heavier nucleus.
The mass of the single nucleus thus formed is lighter than the initial mass.
There is a difference in mass in the heavier nucleus thus formed. According to Einstein's mass-energy equation, the change in mass is equated towards energy.
The energy liberated in the process is called as thermo-nuclear energy.
As in the case of isotopes of hydrogen fuses to form helium, the nuclear reaction is given by relation
₁H³ + ₁H² → ₂He⁴ + ₀n¹ + energy
Thus, the nuclear reaction of hydrogen isotopes forming helium is nuclear fusion.
<em><u>D. acceleration Hope this helps!</u></em>
The answer is <span>4.4143 x 10-19 joules
</span>
The energy (E) is: E = h * f
h - Planck's constant
f - the frequency
The frequency (f) is: f = c/∧
c - the speed of light
∧ - the wavelength
Hence:
E = h * f = h * c / ∧
We know:
h = 6.626 x 10⁻³⁴<span> Js
c = </span>2.998 x 10⁸<span> m/s
</span>∧ = 4.5 x 10⁻⁷<span> m
E = </span>6.626 x 10⁻³⁴ Js * 2.998 x 10⁸ m/s / 4.5 x 10⁻⁷ m
E = 4.4143 x 10⁻³⁴ ⁺ ⁸ ⁻ ⁽⁻⁷⁾ J
E = 4.4143 x 10⁻¹⁹ J
