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ELEN [110]
2 years ago
10

Suppose you have a circuit you are working with, but you recognize that there is a really strong LaTeX: 60\text{Hz}60 Hz hum due

to the AC power being provided to your system. You wish to reduce the effect of this humming but not any other frequency content in the signal. Which type of filter should you use to remove it

Engineering
1 answer:
Levart [38]2 years ago
4 0

Answer:

A bandstop filter should be used to remove the 60 Hz humming component of the signal.

A bandstop filter basically allows all the frequencies above and below a specific frequency that is 60 Hz in this case.

Therefore, only the 60 Hz component of the signal will be attenuated and the rest of the frequency components in the signal will not be affected.

Explanation:

There is a really strong 60 Hz hum (noise) due to the AC power being provided to your system.

We wish to reduce the effect of this humming but not any other frequency content in the signal.

So we need a filter that can reject a particular frequency but allow any other frequencies present in the signal.

A bandstop filter would get the job done.

A bandstop filter basically allows all the frequencies above and below the specific frequency that is 60 Hz in this case.

Therefore, only the 60 Hz component of the signal will be attenuated and the rest of the frequency components in the signal will not be affected.

The notch frequency in this case is 60 Hz which is the frequency at which maximum attenuation occurs.

The typical frequency response of a bandstop filter is attached below.

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Water at 70 kPa and 1008C is compressed isentropically in a closed system to 4 MPa. Determine the final temperature of the water
Nikitich [7]

Answer:

The answer is "909.3928  KJ".

Explanation:

70 \ kPa  \ \ and \ \ 100^{\circ}C \\\\s_i= 7.56162\ \frac{kJ}{kgK}\\\\u_i= 2509.39 \ \frac{kJ}{kg}\\\\

The method is isentropic since the cylinders are shielded.

Calculating the work:

w= u_2-u_i \\\\

   = 3418.7728-2509.38 \\\\=909.3928 \ KJ

3 0
2 years ago
Problem 5) Water is pumped through a 60 m long, 0.3 m diameter pipe from a lower reservoir to a higher reservoir whose surface i
kap26 [50]

Answer:

\epsilon = 0.028*0.3 = 0.0084

Explanation:

\frac{P_1}{\rho} + \frac{v_1^2}{2g} +z_1 +h_p - h_l =\frac{P_2}{\rho} + \frac{v_2^2}{2g} +z_2

where P_1 = P_2 = 0

V1 AND V2  =0

Z1 =0

h_P = \frac{w_p}{\rho Q}

=\frac{40}{9.8*10^3*0.2} = 20.4 m

20.4 - (f [\frac{l}{d}] +kl) \frac{v_1^2}{2g} = 10

we know thaTV  =\frac{Q}{A}

V = \frac{0.2}{\pi \frac{0.3^2}{4}} =2.82 m/sec

20.4 - (f \frac{60}{0.3} +14.5) \frac{2.82^2}{2*9.81} = 10

f  = 0.0560

Re =\frac{\rho v D}{\mu}

Re =\frac{10^2*2.82*0.3}{1.12*10^{-3}} =7.53*10^5

fro Re = 7.53*10^5 and f = 0.0560

\frac{\epsilon}{D] = 0.028

\epsilon = 0.028*0.3 = 0.0084

4 0
2 years ago
three balls each have a mass m if a has a speed v just before a direct collision with B determine the speed of C after collision
ratelena [41]

Answer:

Vc2= V(l+e) ^2/4

Vg2= V(l-e^2)/4

Explanation:

Conservation momentum, when ball A strikes Ball B

Where,

M= Mass

V= Velocity

Ma(VA)1+ Mg(Vg)2= Ma(Va)2+ Ma(Vg)2

MV + 0= MVg2

Coefficient of restitution =

e= (Vg)2- (Va)2/(Va)1- (Vg)1

e= (Vg)2- (Va)2/ V-0

Solving equation 1 and 2 yield

(Va)2= V(l-e) /2

(Vg)2= V(l+e)/2

Conservative momentum when ball b strikes c

Mg(Vg)2+Mc(Vc)1 = Mg(Vg)3+Mc(Vc)2

=> M[V(l+e) /2] + 0 = M(Vg)3 + M(Vc) 2

Coefficient of Restitution,

e= (Vc)2 - (Vg)2/(Vg)2- (Vc)1

=> e= (Vc)2 - (Vg)2/V(l+e) /2

Solving equation 3 and 4,

Vc2= V(l+e) ^2/4

Vg2= V(l-e^2)/4

8 0
2 years ago
Read 2 more answers
5. Which of these materials in a shop contain metals and toxins and can pollute the environment? A) Antifreeze B) Solvents C) Ba
Elza [17]
As a multiple choice the only correct answer is D
3 0
2 years ago
Read 2 more answers
Universal Containers has a junction object called "Job Production Facility". With 2 master-detail relationships to the Job and P
alexdok [17]

Answer:

C. The user will not be able to see the junction object records or the field values.

Explanation:

For the profile of the user to give access permission such as create and read to the job without granting access permission to the production facility object, the value of the field or records of the junction object will not be seen by the user. This is one of the necessary criteria or principle for the universal container with a junction object.

3 0
2 years ago
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