The wave speed of a wave consist of frequency of 100 Hz and a wavelength of 0.30 m is 30 m/s.
Wave speed is referred to the distance a wave travels in a particular amount of time, such as the number of meters it travels per second.
Speed = wavelength (λ) × frequency (ν).
Given wavelength = 0.30 m and frequency= 100 Hz
Wave speed = 0.30 × 100 = 30 m/s
So, the wave speed of the wave is 30 m/s.
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Answer: The wave speed of the wave is 30 m/s
Explanation:
Wave speed is defined as the product of its wavelength and frequency.
Mathematically,
where,
= wavelength of the wave = 0.30 m
= frequency of the wave = 100 Hz =
Putting values in above equation, we get:
Hence, the wave speed of the wave is 30 m/s
B. 39 protons, 30 neutrons, 30 neutrons
C. 39 protons, 30 neutrons, 39 electrons
D. 30 protons, 39, neutrons, 30 electrons
Answer:
D. 30 protons, 39 neutrons, 30 electrons
Explanation:
The atomic number (Z) is the number of protons (p) in the nucleus. Since
Z = 30, p = 30.
In a neutral atom, the number of electrons (e) equals the number of protons. Since p = 30, e = 30.
The mass number (A) is the number of protons plus the number of neutrons (n).
A = p + n
For an atom of zinc-69,
69 = 30 + n Subtract 30 from each side and transpose
n = 39
Zinc has the chemical symbol Zn and the atomic number 30. D. 30 protons, 39, neutrons, 30 electrons
Zinc has the chemical symbol Zn, and its atomic number is 30. This means that every atom of zinc contains 30 protons in its nucleus.
An atom of zinc-69 (Zn-69) is one that contains:
- 30 protons (since zinc has an atomic number of 30).
- 39 neutrons (subtract the atomic number from the mass number: 69 - 30 = 39).
- 30 electrons (in a neutral atom, the number of electrons is equal to the number of protons).
So, the correct option is option d 30 protons, 39 neutrons, 30 electrons.
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Fossil fuels are made from the decomposition of plants and animals. These fuels are present in the earth's crust and contain carbon and hydrogen which is usually burned to obtain energy. Nuclear Power comes now in the place of fossil fuels. The correct option is A.
The use of nuclear reactions to generate the electricity is defined as the nuclear power. The nuclear fission, nuclear fusion and nuclear decay results in the formation of nuclear power. Now a days majority of the electricity from nuclear power plants is produced by the fission of uranium and plutonium.
The nuclear power plants heat water to produce steam. The steam is used to rotate large turbines which generate electricity. They use heat produced during nuclear fission to heat water. The nuclear power is the clean and efficient way of boiling water to form steam.
Thus the correct option is A.
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Answer:
Nuclear Power
Explanation:
Answer:
yes
Explanation:
hope this helps
Answer:
Explanation:
The chemical formula for hydrogen is H while chemical formula for oxygen is O
Considering that two moles of hydrogen and 2 moles of oxygen react to form water, the equation will be
The number of oxygen molecules don't balance on both LHS and RHS hence to balance it, we put it as follows
Normally, two moles of hydrogen require only one mole of oxygen to form two moles of water.