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3 years ago

4.

Engineering

2 answers:

sergiy2304 [10]3 years ago

7 0

D because there’s telephone poles everywhere

erica [24]3 years ago

3 0

I would say C because GPS can’t spot construction sites

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Two gears that are directly touching are called?

MAVERICK [17]

Answer:transmission

Explanation:

i’m not entirely familiar with this but i’m sure it’s transmission!

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3 years ago

Savarur

Yuliya22 [10]

No ground to connect to show me attach to any terminal or lead size reverse designated polarity

Answer B.False

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4 years ago

The maximum gage pressure is known to be 10 MPa in a spherical steel pressure vessel having a 200 mm outer diameter and a(n) 2 m

VikaD [51]

Answer:

factor of safety = 0.8

Explanation:

given data

maximum gauge pressure in steel p = 10 MPa

outer diameter do = 200 mm

wall thickness t = 2 mm

ultimate stress of the steel σU = 400 MPa

solution

We check the type of shell that is

$\frac{t}{do} =\frac{6}{200}$

so we can see that that is

so that it mean vessel is a thin shell now we can we get maximum pressure by the maximum tensile stress is

σ = $\frac{p\times do}{2t}$ .......................1

put here value and we get

σ = $\frac{10\times 200}{2\times 2}$

σ = 500 MPa

so factor of safety will be express as

factor of safety = $\frac{\sigma U}{\sigma}$ ..........2

factor of safety = $\frac{400}{500}$

factor of safety = 0.8

6 0

4 years ago

tech A says that a Hall-effect sensor can be used in an electronic ignition system. Tech B says that an optical-type sensor can

Alex

Answer:

Both Tech A and Tech B are correct.

Explanation:

The Hall effect sen sensor are used to control displacements and rotations of various body components of the vehicles, engine vibrations , and the ignition system

The optical-type sensor converts rays of light into electronic signals. It measures the quantity physically of which the translates to a form that is understandable or readable by an instrument. An optical sensor is larger part of a system that integrates light sources, a device for measuring and the optical sensor, which therefore is usually connected to an electrical trigger.

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3 years ago

Which of the following leaf modifications is beneficial in a low-light environment, e.g., the understory of a rainforest? (More

Mnenie [13.5K]

Answer: A, B and D.

Explanation:

A) If a leaf is iridescent and reflects light or colors from other objects, it helps to stand out from the rest in a low-light environment.

B) The anthocyanin pigments give the leaf a different coloration, so it has a different impact in a darker o flat colored space.

D) Having a large surface area will help to stand out from plants with small leaves.

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3 years ago