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pochemuha
3 years ago
5

(a) Briefly explain what is meant by threshold effect in FM receivers. Why is this effect not present in PM receivers?

Engineering
1 answer:
Vedmedyk [2.9K]3 years ago
6 0

Answer:

heeeheeee

Explanation:

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Determine the COP of a refrigerator that removes heat from the food compartment at a rate of 5160 kJ/h for each kW of power it c
Mars2501 [29]

Answer:

COP_R=1.433\\Q_H=2.433kW

Explanation:

Hello,

In this case, the coefficient of performance of this refrigerator is defined in terms of the removed heat and the work input as:

COP_R=\frac{Q_{L}}{W_{in}} =\frac{5160\frac{kJ}{h}*\frac{1h}{3600s} }{1kJ/s} =1.433

Moreover, the rate of heat rejection to the outside air tuns out:

W_{in}=Q_H-Q_L\\Q_H=W_{in}+Q_L=1kW+5160\frac{kJ}{h}*\frac{1h}{3600s} =2.433kW

Best regards.

3 0
3 years ago
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Even when you have the right-of-way, you're responsible for _____ before you drive forward.
Mazyrski [523]

Answer: look left to right twice b/c somebody may try to run the light

Explanation:

3 0
3 years ago
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A state of stress that occurs at a point on the free surface of the of a solid body is = 50 MPa σ x , =10 MPa σ y , and = −15 MP
posledela

Answer:

A) 5 MPa , 55 MPa

B) maximum stress = 55 MPa,  maximum shear stress = 25 MPa

Explanation:

using the given Data

free surface of a solid body

α_{x} = 50 MPa,    α_{y} = 10 MPa , t_{xy} = -15 MPa

attached below is the detailed solution to the question

7 0
4 years ago
Why some types of aggregate are susceptible to damage from repeated freezing and thawing? Explain.
koban [17]

Answer:

Some types of aggregate are susceptible to damage from repeated freezing and thawing due to their porosity. An aggregate being porous allows water molecules to enter in between the rocks.

When freezing occurs, water is known to expand. The expansion of this in the rocks creates a type of pressure which results in the fracture of the rocks. Subsequent freezing and thawing will allow for more fracture between the rock particles which will lead to its disintegration.

8 0
4 years ago
In ________ programming, the programming is centered on objects that are created from abstract data types that encapsulate data
Contact [7]

Answer:

<em>Object-oriented</em>

Explanation:

<em>Object Oriented programming</em> <em>(OOP)</em> is a specific way of programming, where the code is organized in units called classes, from which objects are created that are related to each other to achieve the objectives of the applications. Object-oriented programming took over as the dominant programming style in the mid-1980s, largely due to the influence of C ++. Its dominance was consolidated thanks to the rise of graphical user interfaces, for which object-oriented programming is particularly well suited. Its most important characteristics are the following:

  • Encapsulation
  • Polymorphism
  • Abstraction
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3 years ago
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