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padilas [110]
1 year ago
10

the carnot cycle attempts to model the most efficient possible process by avoiding what? adiabatic processes isothermal processe

s irreversible processes reversible processes click here to check your answer 10 pts.100% 25% try penalty
Physics
1 answer:
kobusy [5.1K]1 year ago
5 0

The carnot cycle attempts to model the most efficient possible process by avoiding irreversible processes.

In essence, the Carnot cycle is a reversible cycle made up of four other reversible processes. A reversible process is one that can be thought of as consisting of a sequence of equilibrium stages because it is carried out endlessly slowly.

Essentially, this means that any reversible cycle can be performed in reverse and that the amount of work or heat exchanged along the forward and backward pathways is the same.

It goes without saying that such reversible processes are not possible because they would take an unlimited amount of time. Therefore, the Carnot Engine is described as an idealized heat engine that uses the Carnot Cycle, a reversible cycle.

Learn more about carnot cycle here;

brainly.com/question/13040188

#SPJ4

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Determine the internal resistance of the capacitor.
11Alexandr11 [23.1K]

Answer:

The equivalent series resistance of a capacitor is the internal resistance that appears in series with the capacitance of the device. Almost all capacitors exhibit this property at varying degrees depending on the construction, dielectric materials, quality, and reliability of the capacitor.

Explanation:

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7 0
2 years ago
A 0.954-kg toy car is powered by three D cells (4.50 V total) connected directly to a small DC motor. The car has an effective e
Natasha2012 [34]

Answer:

0.06 A

Explanation:

We have given mass =0.954 kg

velocity =1.27 m/sec

efficiency =0.361 the output kinetic energy of the motor KE=\frac{1}{2}mv^2=\frac{1}{2}\times 0.954\times 1.27^2=0.769\ J

Efficiency =0.361

so input to the motor = output/efficiency

so input to the motor = \frac{0.769}{0.361}=2.1301

we know that P=\frac{E}{T} where E is energy and T is time so P=\frac{2.1301}{7.88}=0.2703W

We know that power P=VI we have given V=4.5 VOLT

So current I=\frac{P}{V}=\frac{0.2703}{4.5}=0.06 A

3 0
3 years ago
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4 0
3 years ago
g A hydraulic press has a safety feature which consists of a hydraulic cylinder with a piston at one end and a safety valve at t
nlexa [21]

Answer:

58.32 N

Explanation:

Area of a circle = \pir^{2}

where r is the radius of the circle.

The cylinder has a radius of 0.02 m, its area is;

A_{1} = \pir^{2}

  = \frac{22}{7} x (0.02)^{2}

  = \frac{22}{7} x 0.0004

  = 1.2571 x 10^{-3}

Area of the cylinder is 0.0013 m^{2}.

The safety valve has a radius of 0.0075 m, its area is;

A_{2} = \pir^{2}

    = \frac{22}{7} x (0.0075)^{2}

    = \frac{22}{7} x 5.625 x 10^{-5}

    = 1.7679 x 10^{-4}

Area of the valve is 0.00018 m^{2}.

From Hooke's law, the force on the safety valve can be determined by;

F = ke

F_{2}  = 950 x 0.0085

  = 8.075 N

Minimum force, F_{1}, required can be determined by;

\frac{F_{1} }{A_{1} } = \frac{F_{2} }{A_{2} }

\frac{F_{1} }{0.0013} = \frac{8.075}{0.00018}

F_{1} = \frac{0.0013 *8.075}{0.00018}

    = 58.32

The minimum force that must be exerted on the piston is 58.32 N.

8 0
3 years ago
Which type of wave interaction is shown in the diagram?
masya89 [10]

Answer: Constructive interference

Explanation: Just took the test

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