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fiasKO [112]
3 years ago
8

Now, suppose that you have a balanced stereo signal in which the left and right channels have the same voltage amplitude, 500 mV

pp. This time, however, you want to be able to mix these two channels into a single inverted output while independently varying the gain of the two channels. Design and build an op amp circuit with potentiometers so that you can independently vary the gain of the left and right channels. Choose resistors so that the overall output of your circuit ranges between 0.1Vpp (when both channels are set to minimum gain) and 20Vpp (when both channels are set to maximum gain).

Engineering
1 answer:
eimsori [14]3 years ago
6 0

Answer:

R₁ = 32kΩ

Explanation:

See attached image

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3 years ago
What is the primary responsibility of ABET?
nalin [4]

Answer:

C

Explanation:

The ABET (Accreditation Board for Engineering and Technology) is a non-governmental organization that accredits programs in applied science, computing, engineering, and engineering technology, both in the United States and elsewhere.

Give Brainliest pls

5 0
3 years ago
Thermal energy storage systems commonly involve a packed bed of solid spheres, through which a hot gas flows if the system is be
hammer [34]

Answer:

A) i) 984.32 sec

ii) 272.497° C

B) It has an advantage

C) attached below

Explanation:

Given data :

P = 2700 Kg/m^3

c = 950 J/kg*k

k = 240 W/m*K

Temp at which gas enters the storage unit  = 300° C

Ti ( initial temp of sphere ) = 25°C

convection heat transfer coefficient ( h ) = 75 W/m^2*k

<u>A) Determine how long it takes a sphere near the inlet of the system to accumulate 90% of the maximum possible energy and the corresponding temperature at the center of sphere</u>

First step determine the Biot Number

characteristic length( Lc ) = ro / 3 = 0.0375 / 3 = 0.0125

Biot number ( Bi ) = hLc / k = (75)*(0.0125) / 40 = 3.906*10^-3

Given that the value of the Biot number is less than 0.01 we will apply the lumped capacitance method

attached below is a detailed solution of the given problem

<u>B) The physical properties are copper</u>

Pcu = 8900kg/m^3)

Cp.cu = 380 J/kg.k

It has an advantage over Aluminum

C<u>) Determine how long it takes a sphere near the inlet of the system to accumulate 90% of the maximum possible energy and the corresponding temperature at the center of sphere</u>

Given that:

P = 2200 Kg/m^3

c = 840 J/kg*k

k = 1.4 W/m*K

3 0
3 years ago
Which of the following tasks are performed by the marketing department:
Sloan [31]
Answer:B



Explanation
8 0
3 years ago
The connection is made using a bolt and nut and two washers. If the allowable bearing stress of the washers on the boards is (sb
Yuki888 [10]

Answer:

P = 0.490 kip

Explanation:

given data

allowable bearing stress = 2 ksi

allowable tensile stress = 18 ksi

diameter = 0.31 in

outer diameter = 0.75 in

inner diameter (hole) = 0.50 in

solution

we find here cross section area of shank that is express as

Area = \frac{\pi }{4} \times d^2      ..................1

area = \frac{\pi }{4} \times 0.31^2

area  = 0.0754 in²  

and

now we get here allowable load in bolt will be

\sigma = \frac{P}{A}     ...................2

P = \sigma \times A  

P = 18 × 10³ × 0.0754

P = 1357.2 = 1.357 kip

and

now find here area of washer is

Area = \frac{\pi }{4} \times (d^2-d1^2)     .......................3

put here value

Area = \frac{\pi }{4} \times (0.75^2-0.5^2)  

area = 0.2454 in²

so now we get here allowable load of washer will be

\sigma = \frac{P}{Area}      .....................4

P = 2 × 10³ × 0.245

P = 490 = 0.490 kip

6 0
3 years ago
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