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Black_prince [1.1K]
3 years ago
14

The top five contributing risk factors to fatal crashes in Texas are: speeding, driving under the influence, failure to control

speed, failure to drive in a single lane, and ___________.
Physics
2 answers:
avanturin [10]3 years ago
5 0

Answer:

running and not stopping at traffic lights and stop signs

Explanation:

Stopping the vehicle at traffic lights and stop signs are most important to avid any accidents or collisions. Traffic lights and signs  are meant to control the traffic and avoid any collision. It allows and helps to pass the vehicles to drive away safely. But not following the traffic signs and not stopping at the traffic lights can lead to fatal accidents and serious injuries. This is very dangerous and must be avoided.

notsponge [240]3 years ago
3 0

Answer:

I'd assume it'd be distracted driving.

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The buildup of plaque on the walls of an artery may decrease its diameter from 1.1cm to 0.75 cm. If the speed of blood flow is 1
34kurt

Answer:

v₂ = 32.4 cm/s

Explanation:

From the continuity equation it is clear that:

Volume Flow Rate Before Plaque = Volume Flow Rate In Plaque

Q₁ = Q₂

A₁v₁ = A₂v₂

where,

A₁ = Area of artery before plaque build up = πd²/4 = π(1.1 cm)²/4 = 0.95 cm²

A₂ = Area of artery with plaque build up = πd²/4 = π(0.75 cm)²/4 = 0.44 cm²

v₁ = velocity of blood flow in artery before plaque region = 15 cm/s

v₂ = velocity of blood in artery in plaque region = ?

Therefore,

(0.95 cm²)(15 cm/s) = (0.44 cm²)(v₂)

v₂ = (14.25 cm³/s)/(0.44 cm²)

<u>v₂ = 32.4 cm/s</u>

3 0
3 years ago
In Science, a hypothesis must be _______________.
matrenka [14]

Answer:

a hypothesis is testable then why would it be a hypothesis

5 0
2 years ago
A suspicious-looking man runs as fast as he can along a moving sidewalk from one end to the other, taking 2.90 s. Then security
Sindrei [870]

Answer:

68:39

Explanation:

We have to find the ratio of the man's running speed to the sidewalk's speed.

Let running speed of man=x

Sidewalk's speed=y

When man running  in the same direction as side walk is  moving.

Then, total speed=x+y

Time=2.9 s

When a man running in opposite direction as the side walk is moving.

Then, total speed =x-y

Time =10.7 s

Distance traveled in both cases remain same.

Suppose , d is the distance from one end to another end.

Distance=speed\times time

(x+y)\times 2.9=(x-y)\times 10.7

2.9x+2.9y=10.7x-10.7y

10.7y+2.9y=10.7x-2.9x

13.6y=7.8 x

\frac{x}{y}=\frac{13.6}{7.8}

\frac{x}{y}=\frac{68}{39}

x:y=68:39

Hence, the ratio of the man's running speed to the sidewalk's speed =68:39

4 0
3 years ago
What is de Broglie's hypothesis ? Make sure to be specific (qualitative and quantitative)
victus00 [196]

Answer and Explanation:

DE BROGLIE 'S HYPOTHESIS :

  • According to De broglie the matter have dual nature it can behave as particle as well as wave
  • According to this hypothesis all matter have wave like property and having wavelength.
  • The de broglie wavelength is given by \lambda =\frac{h}{P} here h is plank's constant and P is momentum
  • This hypothesis determines the probability of finding the object at a give point

3 0
3 years ago
El Niño occurs every seven years without fail.<br><br> True<br> False
erik [133]
False
I beleive...............
3 0
3 years ago
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