Answer:
a)
b)
Explanation:
For this case we have the following frequency given:
We can convert this into Hz like this:
If we have a fundamental wave we need to satisfy the following condition:
If we solve for the wavelength we got:
We know that the velocity of the light is
And if we replace into the last formula we got:
Part b
For this case we can use the same formula but on this case the velocity of the sound at 20C is approximately 343 m/s, the frequency is given by:
We use the same wavelenght from the previous part
And if we replace the new values we got:
Answer:
The value is
Explanation:
From the question we are told that
The atmospheric temperature is
The molar mass of carbon dioxide is
The pressure is
The number of moles is
Generally the translational kinetic energy is mathematically represented as
Here R is the gas constant with value
Generally the degree of freedom of carbon dioxide in terms of translational motion is f = 3
So
=>
protons and neutrons in the atom.
Explanation:
The mass number of an atom of carbon represents the total number of protons and neutrons in the atom.
Mass number = number of protons + number of neutrons.
- The mass of an atom is concentrated in the nucleus of the atom.
- The particles in the nucleus are called nucleons are they are made up of the protons and neutrons.
- Protons are positively charged.
- Neutrons carry no charges.
- Together, they make mass of atom.
- The mass of electrons are negligible
Learn more;
Mass number brainly.com/question/2597088
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Answer:
R = 0.24 kilo-ohm
Explanation:
Given that,
Voltage, V = 12 volt
Current, I = 50 mA = 0.05 A
We need to find the resistance of the resistor. We can find it using Ohm's law. So,
V = IR
or
R = 0.24 kohm
So, the value of resistance is 0.24 kilo-ohm.
The answer is 125 because if u add you'll get the answer