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noname [10]
3 years ago
13

The two primary roles that can increase pedestrian safety are:

SAT
2 answers:
ioda3 years ago
5 0
True, because with bright clothes the cars will be able to see pedestrians if it was dark & the sexond one is obvious
Gemiola [76]3 years ago
4 0
True because if cars can see you, you are less likely to be run over. The second one is obvious because you can see who approaches you.
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Perfect competition and monopoly stand at _____________ of the spectrum of competition.
goldfiish [28.3K]

Perfect competition and monopoly stand at the opposite end of the spectrum of competition.

<h3 /><h3>What is perfect competition market?</h3>

Perfect competition is a type of market goods and services sold are similar among individual within the market.

The have no market control with many people to buy and sell and they are located at the opposite end because market are not perfect in competition.

Therefore,  Perfect competition and monopoly stand at the opposite end of the spectrum of competition.

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Perfect competition and monopoly stand at _____________ of the spectrum of competition.

A. opposite ends

B. the high end

C. the low end

D. the mid-way poin

7 0
2 years ago
Is the back of your gum suppose to hurt? I may have to get my wisdom teeth removed if so..
sweet-ann [11.9K]

Answer:

You should go see a dentist if that pain persists.

Explanation:

7 0
3 years ago
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Match the descriptions to the correct diseases to test your understanding of infections that affect the lower respiratory system
bija089 [108]

The descriptions have been matched to the correct diseases that test our understanding of infections that affect the lower respiratory system as follows:

  • Diphtheria- Caused by Corynebacterium diphtheria which eventually results in pseudomembrane formation on the tonsils or pharynx
  • Otitis Media- Most common cause is Streptococcus pneumonia and results in a sensation of fullness or pain in the ear
  • Bacterial pharyngitis- Streptococcus pyogenes infection that results in a sore throat with reddened mucosa, swollen tonsils, and pus nodules
  • Common cold- Caused by hundreds of viruses and results in sneezing, scratchy throat, and runny nose
  • Sinusitis- Caused by a number of bacteria and results in nasal congestion, pressure above the nose or in the forehead, and headache
<h3 /><h3>What are lower respiratory tract diseases?</h3>

Lower respiratory tract diseases are diseases that affect the lower end of the respiratory tract. Some diseases that fall into this category are asthma, pneumonia, bronchitis, etc.

All of these affect the lungs and can also result in difficulty breathing, The various explanations of these diseases have been provided in detail above.

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8 0
3 years ago
After the torque has been applied for 0.3 s, what are the magnitude and direction of the angular momentum about the center of th
vredina [299]

The magnitude and direction of the angular momentum about the center of the disk is 0.996 kgm²/s.

<h3>Angular acceleration of the disk</h3>

The angular acceleration of the disk is determined by applying the principle of conservation of angular momentum as shown below;

Fr = Iα

α = Fr/I

Where;

  • I is the moment of inertia of the solid disk

I = ¹/₂MR²

I = ¹/₂ x (0.5) x (0.08)²

I = 1.6 x 10⁻³ kgm²

\alpha = \frac{14 \times 0.22}{1.6\times 10^{-3}}\\\\\alpha = 1,925 \ rad/s^2

<h3>Final angular velocity of the disk</h3>

ωf = ωi + αt

ωf = 45 + (1925 x 0.3)

ωf = 622.5 rad/s

<h3>Angular momentum</h3>

L = Iω

L = (1.6 x 10⁻³) x (622.5)

L = 0.996 kgm²/s

Thus, the magnitude and direction of the angular momentum about the center of the disk is 0.996 kgm²/s.

The complete question is below:

A uniform solid disk with radius 8 cm has mass 0.5 kg (moment of inertia I = (1/2)MR²). A constant force 14 N is applied as shown. At the instant shown, the amount of string that has wound off the disk is d = 22 cm, and the angular velocity of the disk is 45 radians/s into the page.

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4 0
2 years ago
Manifestations associated with hepatic encephalopathy from chronic liver disease are the result of:
saveliy_v [14]

Manifestations associated with hepatic encephalopathy from chronic liver disease are the result of impaired ammonia metabolism.

<h3>What is hepatic encephalopathy?</h3>

Hepatic encephalopathy is a condition where the brain and nervous system may affect the liver and cause serious disease.

Hepatic encephalopathy may be associated with an altered ammonia metabolism, where the urea is not metabolized properly.

In conclusion, manifestations associated with hepatic encephalopathy from chronic liver disease are the result of impaired ammonia metabolism.

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8 0
2 years ago
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