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3 years ago

10

50 POINTS!!!!!!!!!!!!!!!!!!!!!! PLEASE HURRY

2 answers:

Keith_Richards [23]3 years ago

4 0

It’s 25 points my guy

KiRa [710]3 years ago

4 0

Answer:Levees are the mainstay of the MR&T project flood-control plan. The system protects the vast expanse of the developed alluvial valley from periodic overflows of the Mississippi River.Life in Davenport, Iowa, revolves around the Mississippi River. ... The Mississippi is usually a source of pride, but this spring locals watched it ... It surged past 15 feet—flood stage, when water spills into areas not usually ... a river primed to over ow dramatically—a problem that climate change is .Floods on the mighty Mississippi River are larger and more frequent today than at any time in the past 500 years — in part, a new study suggests, because structures erected to control the river have increased the flood risk. ... The team examined three lakes that were cut off from the river around 1500, 1722 and 1776.Apr 4, 2018

Explanation:

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A column carries 5400 pounds of load and is supported on a spread footing. The footing rests on coarse sand. Design the smallest

Citrus2011 [14]

Answer:

Following are the responses to the given question:

Explanation:

7 0

3 years ago

Re armature of a 4 pole DC generator is required to generate an emf of 520v on open circuit when revolving at a speed of 660rpm.

bija089 [108]

Since the armature is wave wound, the magnetic flux per pole is 0.0274 Weber.

<u>Given the following data:</u>

Emf = 520 Volts

Speed = 660 r.p.m

Number of armature conductors = 144 slots

Number of poles = 4 poles

Number of parallel paths = 2

To find the magnetic flux per pole:

Mathematically, the emf generated by a DC generator is given by the formula;

$E = \frac{\theta ZN}{60}$ × $\frac{P}{A}$

<u>Where:</u>

E is the electromotive force in the DC generator.

Z is the total number of armature conductors.

N is the speed or armature rotation in r.p.m.

P is the number of poles.

A is the number of parallel paths in armature.

Ф is the magnetic flux.

First of all, we would determine the total number of armature conductors:

$Z = 144$ × $2$ × $3$

Z = 864

Substituting the given parameters into the formula, we have;

$520 = \frac{\theta (864)(660)}{60}$ × $\frac{4}{2}$

$520 = \theta (864)(11)$ × $2$

$520 = 19008 \theta \\\\\Theta = \frac{520}{19008}$

<em>Magnetic flux </em><em>=</em><em> 0.0274 Weber.</em>

Therefore, the magnetic flux per pole is 0.0274 Weber.

Read more: brainly.com/question/15449812?referrer=searchResults

5 0

3 years ago

Which of the following placards allows a driver to park in a handicapped parking space.

malfutka [58]

All of the above ......

4 0

3 years ago

Read 2 more answers

Technician A says that a fully charged battery is less likely to freeze than a discharged battery. Technician B says that the st

zheka24 [161]

Answer : Technician B is correct

8 0

3 years ago

In the lab, a container of saturated soil had a mass of 113.27 g before it was placed in the oven and100.06 g after the soil had

kipiarov [429]

Answer:

Moisture/ water content w = 26%

Void ratio , e = 0.73

Explanation:

Initial mass of saturated soil w1 = mass of soil - weight of container

= 113.27 g - 49.31 g = 63.96 g

Final mass of soil after oven w2 = mass of soil - weight of container

= 100.06 g - 49.31 g = 50.75

Moisture /water content, w = $\frac{w1-w2}{w2}$ = $\frac{63.96-50.75}{50.75}$ = 0.26 = 26%

Void ratio = water content X specific gravity of solid

= 0.26 X 2.80 =0.728

5 0

3 years ago