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Sliva [168]
3 years ago
7

Explain thermodynamics?

Physics
2 answers:
Maurinko [17]3 years ago
7 0

Explanation:

the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy), and, by extension, of the relationships between all forms of energy

VMariaS [17]3 years ago
7 0

Explanation:

Let's start with the most basic thing that is to clarify what thermodynamics is.

Thermodynamics is in charge of studying heat transfers, the capacity of a system to produce work and how energy is converted. Systems that contain <u>particles </u>are studied in this area, rather than systems that contain atoms or molecules.

Now these systems are those that are part of the universe, such as a gas.

There are laws of thermodynamics to explain all this, and they are not theoretical studies but rather studies based on experiences that are directly associated with the aforementioned systems in a state of equilibrium.

These laws are:

  • Zero principle of thermodynamics: It establishes that when two bodies are in thermal equilibrium with a third one, they are in thermal equilibrium with each other.
  • First principle of thermodynamics: It establishes the relationship between work and the transferred heat that is exchanged in a system through internal energy.
  • Second principle of thermodynamics: It states that not all heat can be transformed into mechanical work, although all mechanical work can be transformed into heat.
  • Third principle of thermodynamics: It is the least important of the laws. It is related to the etropy of a substance that is null, and details its behavior when it approaches absolute zero.
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Well,

When an object's velocity changes, we call it acceleration.

Acceleration: The time rate of change in an object's velocity
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In what state of matter does oxygen exist at room temperature
denis-greek [22]
Oxygen is a gas a room temperature.


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3 years ago
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Two 10-cm-diameter charged rings face each other, 21.0 cm apart. Both rings are charged to +40.0 nC. What is the electric field
Katyanochek1 [597]

Complete question:

Two 10-cm-diameter charged rings face each other, 21.0 cm apart. Both rings are charged to +40.0 nC. What is the electric field strength  at the midpoint between the two rings ?

Answer:

The electric field strength at the mid-point between the two rings is zero.

Explanation:

Given;

diameter of each ring, d = 10 cm = 0.1 m

distance between the rings, r = 21.0 cm = 0.21 m

charge of each ring, q = 40 nC = 40 x 10⁻⁹ C

let the midpoint between the two rings = x

The electric field strength  at the midpoint between the two rings is given as;

E_{mid} = E_{right} +E_{left}\\\\E_{right}  = \frac{KQ}{(x^2 + r^2)^\frac{2}{3} } \\\\E_{leftt}  = -\ \frac{KQ}{(x^2 + r^2)^\frac{2}{3} }\\\\E_{mid} = \frac{KQ}{(x^2 + r^2)^\frac{2}{3} }  - \frac{KQ}{(x^2 + r^2)^\frac{2}{3} } = 0

Therefore, the electric field strength at the mid-point between the two rings is zero.

7 0
3 years ago
A 103 kg horizontal platform is a uniform disk of radius 1.71 m and can rotate about the vertical axis through its center. A 68.
Andreyy89

Answer:

I_{total}=220.64 kg*m^{2}

Explanation:

The moment of inertia of the system is equal to the each population and the platform inertia so

Inertia disk

I_{disk}=\frac{1}{2}*m_{disk}*(r_{p})^{2}

Inertia person

I_{p}=\frac{1}{2}*m_{p}*(r_{p})^{2}

Inertia dog

I_{d}=\frac{1}{2}*m_{d}*(r_{d})^{2}

The Inertia of the system is the sum of each mass taking into account that all exert the force of inertia:

I_{total}=I_{disk}+I_{p}+I_{d}

I_{total}=\frac{1}{2}*103kg*(1.71)^{2}+\frac{1}{2}*68.9kg*(1.09)^{2}+\frac{1}{2}*27.7kg*(1.45)^{2}

I_{total}=220.64 kg*m^{2}

5 0
3 years ago
A plane is flying due east with the velocity of 90m/s. The wind is blowing out of the north at 4m/s. What is the magnitude of th
Butoxors [25]
<span> as we know that the velocity vectors are at right angles
magnitude = ?
hypotenuse of a right triangle.
v^2 = 90^2 + 4^2
v^2 = 8116
Taking the square root of both sides here we get,
v = 90.1 m/s
hope it helps
</span>
4 0
3 years ago
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