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3 years ago

The purpose of hazard lights is to _____.

Engineering

2 answers:

Lana71 [14]3 years ago

8 0

Answer: show other drivers that your vehicle is disabled

Explanation: The purpose of hazard lights is to show others that your vehicle is disabled. Only use your hazard lights once you are safely pulled over and stopped.

asambeis [7]3 years ago

6 0

Answer:

Your hazard lights warn other drivers of an emergency situation you may be encountering. All four turn signal lights come on when you activate your hazard lights.

Explanation:

on the internet.

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Given that the skin depth of graphite at 100 (MHz) is 0.16 (mm), determine (a) the conductivity of graphite, and (b) the distanc

Andrei [34K]

Answer:

the answer is below

Explanation:

a) The conductivity of graphite (σ) is calculated using the formula:

$\delta=\frac{1}{\sqrt{\pi f \mu \sigma} }\\\\\sigma =\frac{1}{\pi f \mu \delta^2}$

where f = frequency = 100 MHz, δ = skin depth = 0.16 mm = 0.00016 m, μ = 0.0000012

Substituting:

$\sigma =\frac{1}{\pi *10^6* 0.0000012*0.00016^2}=0.99*10^4\ S/m$

b) f = 1 GHz = 10⁹ Hz.

$\alpha=\sqrt{\pi f \mu \sigma} = \sqrt{0.0000012*10^9*\pi*0.99*10^5}=1.98*10^4\ Np/m\\\\20log_{10} e^{-\alpha z}=-30\ dB\\\\(-\alpha z)log_{10} e=-1.5 \\\\z=\frac{-1.5}{log_{10} e*-\alpha} =1.75*10^{-4}\ m=0.175\ mm$

4 0

3 years ago

A team of engineers is tasked with designing a hydraulic engine for a motorboat that is as efficient as possible. Identify three

Rina8888 [55]

Answer:

Driving surface area as subject to differential pressures
How to achieve continuous rotation
Mechanical connections

Explanation:

The general stages of thinking when designing a system are;

First understanding the problem that requires you to design a solution
Defining the problem that needs to be solved. In this case is to design an efficient hydraulic engine for a motorboat
Research to find any available solutions for similar problems
Idea of the solution
A prototype to try solve the challenge
Selecting and adjusting the prototype as you implement the solution.

For a hydraulic engine design, the following designing parts are vital;

Driving surface area as subject to differential pressures
How to achieve continuous rotation
Mechanical connection

Pressures are important due to motor displacements. Fuel burns in the cylinder to cause power through fuel gases burning and expansion which is the four-stroke cycle. Continuous rotation will come in the design considerations through reciprocating motions of pistons into rotary motions. Mechanical connections are vital especially in crank shaft turns, gear box that turns horizontal motions to spinning motions and finally the propeller that drives the boat on the water.

7 0

3 years ago

Tires can be recycled instead of thrown out.<br> True<br> False

Arisa [49]

Answer:

True :)

Explanation:

You can recycle it! Tire recycling is the most practical and environment-friendly way of disposing of old and worn-out tires. Due to their inherent durability, large volume and environment and health risks, tires are one of the most problematic sources of solid wastes.

Hope it helped have a nice day! :)

8 0

3 years ago

A laboratory in the Y building keep a vacuum pressure of 0.1 kPa abs. What is the net force acting on the door considering the a

seropon [69]

Answer:

net force acting on the floor is 100 kN

Explanation:

Given data:

$P_{vaccum} = 0.1 kPa$