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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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malfutka [58]

the work done on the car by the force of its engine is 78,000 J.

" The work done on the car by the force of friction is 24,000 J.

Increasing the car's kinetic energy at the end of the first 100 m is 54,000J

a. Completed work = force x distance. Engine output = 780 N, that is,

780 N x 100 m = 78,000 J.

b. Completed work = force x distance. Friction force = 240 N, that is,

240 N x 100 m = 24,000 J.

c. Kinetic energy = 1 \ 2 x m x v2

= 1 \ 2 x 750 kg x 12 squared = 375 x 144 = 54,000 J.

<h3>How powerful is the engine of a car? </h3>

Mainstream car and truck engines typically produce 100-400 pounds. -Torque feet. This torque is generated by the engine piston as it moves up and down on the engine crankshaft, causing the engine to rotate (or twist) continuously.

Learn more about work done here:  brainly.com/question/25573309

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2 years ago
The amount of energy which is transported past a given area of the medium per unit of time is known as the ________ of the sound
Aliun [14]
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It can be implied that the wave would be more intense when its energy transfer rate gets increased and vibration amplitudes also increases.
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3 years ago
Why do surface winds tend to cross the isobars?
scZoUnD [109]
Geostrophic winds blows parallel to the isobars. That is because the Coriolis force and pressure gradient force ( PGF ) are in balance. But near the surface the friction can act to change the direction of the wind and to slow it down. Coriolis force decreases at the surface and PGF stays the same. The difference in terrain conditions affects how much friction is exerted. Hills and forests force the wind to change direction more than flat areas. Answer: Friction reduces the speed so Coriolis is weakened. 
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The haystack maker tractor lifted 120 kg of grass to a height of 5 meters in 6 seconds. Calculate the power of the haystack make
Gelneren [198K]

Answer:

1000 Joules per second.

Explanation:

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Power is work over the amount of time:

P = \frac{W}{\Delta t}=\frac{6000J}{6 s} = 1000 \frac{J}{s}

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