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KonstantinChe [14]
3 years ago
14

Question 1

Computers and Technology
2 answers:
DaniilM [7]3 years ago
5 0

Answer:

Explanation:

<u>Question 1:</u>

You don’t necessarily have to go out and purchase a brand new fuel-efficient car to save on gas. There is plenty you can do to increase your gas mileage.

<em>Replace Air Filter and Spark Plugs </em>

Replacing the air filter and spark plugs during a routine auto checkup not only helps your car last longer, but it can help your engine burn gas more efficiently

<em>Properly Inflate Tires </em>

Inflate the tires when they look low, but even if they are slightly low, undetectable to the eye, they could significantly reduce your mileage. Basically, under-inflated tires result in your engine using more gas to move the car.

<em>Use Cruise Control</em>

Using cruise control helps to maintain a safe, legal, and gas-efficient speed.Using cruise control helps reduce the need to accelerate and brake, which makes travel more gas-efficient.

<u>Question 2:</u>

Because younger drivers are more likely to get in a accident.

<u>Question 3:</u>

Laws regarding hazard light use are vague in many states, according to The American Automobile Association, in Virginia, “hazard light use is not permitted while driving except for emergency vehicles, stopped or slowed vehicles to indicate a traffic hazard, when traveling as part of a funeral procession.

<u>Question 4:</u>

Pull over at a safe location: If a police officer indicates for you to pull over, put on your turn signal to drive to the nearest, safe location and pull over. As such, turn off your ignition, turn on your interior car lights (if it's dark outside), and completely roll down your driver's side window.

Rina8888 [55]3 years ago
5 0

Answer:

Question 1: three Eco-driving techniques are

  1. gentle braking: applying your brakes gently saves your fuel consumption by up to 40 PERCENT and also helps to extend vehicle life, to practice this always look ahead and slowly reduce your speed instead of applying your brakes so hard when you are so close to a stop
  2. use of speed limits: speed limits saves life as well try as much as possible to stick to highway speed limits. driving at a much lower speed can increase the mileage of your vehicle by a reasonable percentage and also the life of the vehicle
  3. easily taking a corner: taking corners so hard and sharply affects fuel and reduce mileage as well

Question 2: younger drivers are more prone to accidents because they lack the wealth of experience of the older drivers and they seem to be more reckless as well

question 3:

legal use : hazard lights are supposed to be used when the vehicle is stopped, broken down or was in an accident therefore warning other drivers to stay away from it

illegal use: turning on your hazard light while driving in the rain is an illegal use of hazard light.

question 4: after pulling over you should

  • roll down the window on the driver side of the of the vehicle
  • speak politely to the police officer

Explanation:

Eco-driving techniques are efficient ways of driving your vehicle in other to be safe and also extend the life of your vehicle and increase its mileage

Eco-driving is either automatically and manually.

Insurance of drivers is necessary in order to reduce cost/effect of accidents on drivers and vehicle

hazard lights : are used as a warning sign to oncoming vehicles that a particular vehicle is obstructing traffic due to its bad state.

traffic stops : are temporary stops made by police on vehicles been suspected to have broken a law either traffic or otherwise

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Computer Networks - Queues
lyudmila [28]

Answer:

the average arrival rate \lambda in units of packets/second is 15.24 kbps

the average number of packets w waiting to be serviced in the buffer is 762 bits

Explanation:

Given that:

A single channel with a capacity of 64 kbps.

Average packet waiting time T_w in the buffer = 0.05 second

Average number of packets in residence = 1 packet

Average packet length r = 1000 bits

What are the average arrival rate \lambda in units of packets/second and the average number of packets w waiting to be serviced in the buffer?

The Conservation of Time and Messages ;

E(R) = E(W) + ρ

r = w + ρ

Using Little law ;

r = λ × T_r

w =  λ × T_w

r /  λ = w / λ  +  ρ / λ

T_r =T_w + 1 / μ

T_r = T_w +T_s

where ;

ρ = utilisation fraction of time facility

r = mean number of item in the system waiting to be served

w = mean number of packet waiting to be served

λ = mean number of arrival per second

T_r =mean time an item spent in the system

T_w = mean waiting time

μ = traffic intensity

T_s = mean service time for each arrival

the average arrival rate \lambda in units of packets/second; we have the following.

First let's determine the serving time T_s

the serving time T_s  = \dfrac{1000}{64*1000}

= 0.015625

now; the mean time an item spent in the system T_r = T_w +T_s

where;

T_w = 0.05    (i.e the average packet waiting time)

T_s = 0.015625

T_r =  0.05 + 0.015625

T_r =  0.065625

However; the  mean number of arrival per second λ is;

r = λ × T_r

λ = r /  T_r

λ = 1000 / 0.065625

λ = 15238.09524 bps

λ ≅ 15.24 kbps

Thus;  the average arrival rate \lambda in units of packets/second is 15.24 kbps

b) Determine the average number of packets w waiting to be serviced in the buffer.

mean number of packets  w waiting to be served is calculated using the formula

w =  λ × T_w

where;

T_w = 0.05

w = 15238.09524 × 0.05

w = 761.904762

w ≅ 762 bits

Thus; the average number of packets w waiting to be serviced in the buffer is 762 bits

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