3.Which of the following drawings are matched with the project specifications to form the bulk of the contract document?

Consider the time domain waveforms below on the left. Match waveforms (a) - (e) to their respective frequency spectrum represent

lozanna [386]

Answer:

(a) ------(3). (b)------(1) (c)-----(5) (d)------(2) ------ (e) -----4

Note: Kindly find an attached copy of the diagram associated with the solution to the question below.

Sources: the diagram to this question was researched from Quizlet

Explanation:

Solution

(1) Part (a)a waveform has a high frequency components compared to another waveform. the corresponding frequency components should be high.

So for the wave form a the corresponding frequency spectrum is (3)

(2) For part (b), waveform has three harmonics, the corresponding frequency spectrum is (1)

(3) The time domain waveform plot (c) is a sine wave but there exists a dc component.

Thus x[0] ≠0

For (c) the corresponding frequency spectrum is (5)

(4) For part (d) the corresponding frequency spectrum is (2)

(5) A sine wave is made of a single frequency only and its spectrum is a single point

For (e) the corresponding frequency spectrum is (4)

3 0

3 years ago

Determine the work done by an engine shaft rotating at 2500 rpm delivering an output torque of 4.5 N.m over a period of 30 secon

balu736 [363]

Answer:

work done= 2.12 kJ

Explanation:

Given

N=2500 rpm

T=4.5 N.m

Period ,t= 30 s

$torque =\frac{power}{2\pi N}$

$power=2\pi N\times T$

P= $2\times \pi \times2500 \times 4.5$

P=70,685W

P=70.685 KW

power= $\frac{work done}{time}$

work done = power * time

= 70.685*30=2120.55J

= 2.12 kJ

7 0

3 years ago

Convert 10.25 degrees into radians; and π, π/2 and π/3 radians into degrees.

enot [183]

Answer:

0.1788 ,180°,90°,60°

Explanation:

CONVERSION FROM DEGREE TO RADIANS: For converting degree to radian we have to multiply with $\frac{\pi}{180}$

using this concept 10.25°=10.25× $\frac{\pi}{180}$ =0.1788

CONVERSION FROM RADIAN TO DEGREE: For converting radian to degree we have to multiply with $\frac{180}{\pi}$

using this concept π=π× $\frac{180}{\pi}$

=180°

$\frac{\pi}{2}$ = $\frac{\pi}{2}[/tex×[tex]\frac{180}{\pi}$

=90°

$\frac{\pi}{3}$ = $\frac{\pi}{3}$ × $\frac{180}{\pi}$

=60°

3 0

2 years ago

Read 2 more answers

700.0 liters of a gas are prepared at 760.0 mmHg and 100.0 °C. The gas is placed into a tank under high pressure. When the tank

ololo11 [35]

Answer:

The volume of the gas is 11.2 L.

Explanation:

Initially, we have:

V₁ = 700.0 L

P₁ = 760.0 mmHg = 1 atm

T₁ = 100.0 °C

When the gas is in the thank we have:

V₂ =?

P₂ = 20.0 atm

T₂ = 32.0 °C

Now, we can find the volume of the gas in the thank by using the Ideal Gas Law:

$PV = nRT$

$V_{2} = \frac{nRT_{2}}{P_{2}}$ (1)

Where R is the gas constant

With the initials conditions we can find the number of moles:

$n = \frac{P_{1}V_{1}}{RT_{1}}$ (2)

By entering equation (2) into (1) we have:

$V_{2} = \frac{P_{1}V_{1}}{RT_{1}}*\frac{RT_{2}}{P_{2}} = \frac{1 atm*700.0 L*32.0 ^{\circ}}{100.0 ^{\circ}*20.0 atm} = 11.2 L$

Therefore, When the gas is placed into a tank the volume of the gas is 11.2 L.

I hope it helps you!

5 0

2 years ago

If a PPE doesn’t fit properly do you keep wearing them

masha68 [24]

What is that lol? Ensuring

7 0

2 years ago

Read 2 more answers