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4 years ago

Consider an LTI (linear time-invariant) system whose impulse response h[n] and input signal x[n] are given as:

Engineering

1 answer:

Sergeu [11.5K]4 years ago

6 0

Answer:

A plot of x[n] and h[n] gives the plot of the graph.

Explanation:

The impulse responses are depicted by suitable diagrams.

The output of the system will be the sum total of the response to the signal h[0], h [1] and h [2].

Thus, the three signals will be:

h[0]x[n] = 3x[n]

h[1]x[n] = 3x[n-1]

h[2]x[n-2] = x[n-2]

Therefore, the output of the system will be like this:

y[n] = [ 0, 0, 3, 6, 7, 7, 4, 1, 0, 0]

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A rectangular bar of length L has a slot in the central half of its length. The bar has width b, thickness t, and elastic modulu

Naya [18.7K]

Answer:

The correct answer to the following question will be "1.23 mm".

Explanation:

The given values are:

Average normal stress,

$\sigma=200 \ MPa$

Elastic module,

$E = 77 \ GPa$

Length,

$L = 570 \ mm$

To find the deformation, firstly we have to find the equation:

⇒ $\delta=\Sigma\frac{N_{i}L_{i}}{E \ A_{i}}$

⇒ $=\frac{P(\frac{L}{H})}{E(bt)} +\frac{P(\frac{L}{2})}{E (bt)(\frac{2}{3})}+\frac{P(\frac{L}{H})}{Ebt}$

On taking " $\frac{PL}{Ebt}$ " as common, we get

⇒ $=\frac{\frac{PL}{Ebt}}{[\frac{1}{4}+\frac{3}{4}+\frac{1}{4}]}$

⇒ $=\frac{5PL}{HEbt}$

Now,

The stress at the middle will be:

⇒ $\sigma=\frac{P}{A}$

⇒ $=\frac{P}{(\frac{2}{3})bt}$

⇒ $=\frac{3P}{2bt}$

⇒ $\frac{P}{bt} =\frac{2 \sigma}{3}$

Hence,

⇒ $\delta=\frac{5 \sigma \ L}{6E}$

On putting the estimated values, we get

⇒ $=\frac{5\times 200\times 570}{6\times 77\times 10^3}$

⇒ $=\frac{570000}{462000}$

⇒ $=1.23 \ mm$

8 0

3 years ago

State two reasons why industrial files must be always be used fitted upon the individual

NikAS [45]

Explanation:

dnndndndndndndndndnndmfnfnf

4 0

3 years ago

20. It is important to keep a copy of your written plan and safety records off-site.

Verdich [7]

Answer:

Explanation:

Incase you need to re-read or you need to refresh your memory.

Also, Incase something happens, you will have the rules and guidelines.

4 0

3 years ago

Some soil has a discharge rate of 0.1 L/s, an area of 11 m2, and a hydraulic head that is given empirically by the function H =

Artist 52 [7]

Answer:

3.03 * 10 ⁻⁴ m/s

Explanation:

see attached picture for explanation.

3 0

3 years ago

Theo Anh / Chị, để đáp ứng yêu cầu phát triển nền kinh tế thị trường định hướng Xã hội Chủ nghĩa ở Việt Nam trong bối cảnh thời

yawa3891 [41]

Nền kinh tế thị trường định hướng xã hội chủ nghĩa là nền kinh tế hàng hoá nhiều thành phần do thị trường điều tiết, bao gồm sở hữu tư nhân, tập thể và nhà nước về tư liệu sản xuất. Tuy nhiên, khu vực nhà nước và các doanh nghiệp thuộc sở hữu tập thể tạo thành xương sống của nền kinh tế.

tôi nghĩ

5 0

3 years ago