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3 years ago

What is the function of filters in communication system ?

1 answer:

mihalych1998 [28]3 years ago

8 0

In signal processing, a filter is a device or process that removes some unwanted components or features from a signal. Filtering is a class of signal processing, the defining feature of filters being the complete or partial suppression of some aspect of the signal. Most often, this means removing some frequencies or frequency bands. However, filters do not exclusively act in the frequency domain; especially in the field of image processing many other targets for filtering exist.

Explanation:

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At steady state, air at 200 kPa, 330 K, and mass flow rate of 0.1 kg/s enters an insulated duct having differing inlet and exit

olya-2409 [2.1K]

Answer:

Photos are attached. Step wise solution is given.

1. Velocity of air at inlet is calculated.

2.Temperature of air at exit in Kelvin is also calculated.

3.Exit Cross-Sectional area

Best Regards.

5 0

4 years ago

Illinois furniture , Inc produces all types of coffee furniture the executive secretary is a chair that has been designed using

o-na [289]

This question is incomplete, the complete question is;

Illinois furniture , Inc produces all types of office furniture. The "Executive Secretary" is a chair that has been designed using ergonomics to provide comfort during long work hours the chair sells for $130. There are 480 minutes available during the day and the average daily demand has been 50 chairs. There are eight tasks.

TASK PERFORMANCE TIME( MIN ) TASK MUST FOLLOW TASK LISTED

A 4 ---------

B 7 ----------

C 6 A,B

D 5 C

E 6 D

F 7 E

G 8 E

H 8 F,G

1) What is the cycle time for operation?

2) What is the theoretical minimum number of workstation?

Answer:

1) the cycle time for operation is 9.6 min

2) the theoretical minimum number of workstation is 5

Explanation:

Given the data in the question;

production time per day = 480 minutes

average daily demand = 50

Given the data in the question;

1) cycle time for operation

this is simply referred to as the total time for the process from start to finish.

cycle time = production time per day / units demand per day

we substitute

cycle time = 480 min / 50

cycle time = 9.6 min

Therefore, the cycle time for operation is 9.6 min

2) theoretical minimum number of workstation.

theoretical minimum number of workstation = total task time / cycle time

Total task time = ( 4 + 7 + 6 + 5 + 6 + 7 + 8 + 6 ) = 49 min

∴ theoretical minimum number of workstation = 49 min / 9.6 min

theoretical minimum number of workstation = 5.104 ≈ 5

Therefore, the theoretical minimum number of workstation is 5

7 0

3 years ago

A ________ is a condition or capability needed by a user to solve a problem or achieve an objective that satisfies a standard or

Aliun [14]

A successful brain to help

7 0

3 years ago

A rectangular block of material with shear modulus G= 620 MPa is fixed to rigid plates at its top and bottom surfaces. Thelower

PIT_PIT [208]

Answer:

γ $_{xy}$ =0.01, P=248 kN

Explanation:

Given Data:

displacement = 2mm ;

height = 200mm ;

l = 400mm ;

w = 100 ;

G = 620 MPa = 620 N//mm²; 1MPa = 1N//mm²

a. Average Shear Strain:

The average shear strain can be determined by dividing the total displacement of plate by height

γ $_{xy}$ = displacement / total height

= 2/200 = 0.01

b. Force P on upper plate:

Now, as we know that force per unit area equals to stress

τ = P/A

Also, τ = Gγ $_{xy}$

By comapring both equations, we get

P/A = Gγ $_{xy}$ ------------ eq(1)

First we need to calculate total area,

A = l*w = 400 * 100= 4*10^4mm²

By putting the values in equation 1, we get

P/40000 = 620 * 0.01

P = 248000 N or 2.48 *10^5 N or 248 kN

6 0

3 years ago

How many grams is one molecule of calcium oxide?

MakcuM [25]

Answer:

Molar mass -56.0774 g/mol

There is a way to calculate this

atomic number for calcium is 20

atomic number for oxygen is 8

The molar mass for calcium is 40

The molar mass for oxygen is 16

CALCIUM OXIDE

40. +. 16

=56g/mol

1 molecule = 1×56=56g/mol

2 molecules=2×56 =112g/mol

5 0

2 years ago

What is the function of filters in communication system ?​

What is the function of filters in communication system ?