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2 years ago

If there is a railroad crossing ahead and a red flashing signal warns you of an approaching train, you must?

Engineering

1 answer:

DaniilM [7]2 years ago

6 0

Answer: Stop

Explanation: When you approach a railroad crossing with flashing signal lights, stop at the limit line or far away from the gates. And do not proceed until the red lights stop flashing.

I hope this helps!

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The polycarbonate shell functions as all of the following except:

krok68 [10]

Answer:

what are the answers expect what?

Explanation:

Polycarbonate is commonly used in eye protection, as well as in other projectile-resistant viewing and lighting applications that would normally indicate the use of glass, but require much higher impact-resistance. Polycarbonate lenses also protect the eye from UV light.

6 0

3 years ago

Calculate KI for a rectangular bar containing an edge crack loaded in three-point bending where P=35.0 kN, W=50.8 mm, B=25 mm, a

Katyanochek1 [597]

Answer:

$K_{I}=5.21 MPa\sqrt{m}$

Explanation:

given data

Load P = 35 kN

Width of bar W = 50.8 mm

Breadth of bar B = 25 mm

Ratio of crack length to width α = a/W = 0.2

solution

we get here KI for a rectangular bar that is express as

$K_{I} = \frac{6P}{BW}Y\sqrt{\pi a}$ ................................1

here Y is the geometrical function

Y = $\frac{1.12+\alpha (3.43\alpha -1.89)}{1-0.55\alpha}$

Y = $\frac{1.12+0.2(3.43\times 0.2-1.89)}{1-0.55\times 0.2}$

Y = $\frac{0.8792}{0.89}$

Y = 0.9878

so put here value in equation 1

$K_{I} = \frac{6\times 35\times 10^{3}}{0.025\times 0.0508}\times 0.9878\times \sqrt{3.1415\times (0.2\times 0.0508)}$

$K_{I} = 165354.33\times 10^{3}\times 0.9878\times 0.0319$

$K_{I}$ = 5210.45 × 10³ $Pa\sqrt{m}$

$K_{I}$ = 5.21 MPa $\sqrt{m}$

5 0

3 years ago

What are some of the trade-offs of a move to an enterprise-level analytics solution for individual end users who might have grow

aleksandrvk [35]

Answer:

THE thing is 435

Explanation:

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3 years ago

Technician A says that some of the plates used in a multiple-disc clutch are lined with paper friction material.

tankabanditka [31]

Answer:

Technician A

Explanation:

In the case of multiple-disc clutches, composite paper materials are very common. Since these multiple-disc clutches typically use an oil bath or flow-through cooling method for keeping the disc pack lubricated and cooled, very little wear is seen when using composite paper materials.

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3 years ago

Air at a temperature of 333 °C flows with a velocity of 10 m/s over a flat plate 0.5m long. Estimate the cooling rate per unit w

Rama09 [41]

The answer & explanation for this question is given in the attachment below.

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4 years ago