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Shalnov [3]
3 years ago
15

To prevent hydroplaning, _____. A. slow down B. speed up C. deflate your tires D. use cruise control

Engineering
1 answer:
Oksana_A [137]3 years ago
7 0

<u>Answer:</u>

<em><u>a. slow down</u></em>

<u>Explanation:</u>

To properly answer this question, you must understand what hydroplaning is. Hydroplaning is essentially when a car begins to slide on a wet road and the driver cannot control the vehicle. This happens because of an overflow in water on the road which causes the tires to begin to skim on the surface of the water. Having a proper amount of tire tread, typically 5/23 inches deep or above, will reduce chances of a car hydroplaning on a wet surface.

<em>* note:</em>

<em>if you would like a better understanding of what hydroplaning looks like, there are videos on the internet you could watch that show real life footage of what it looks like when cars hydroplane. I recommend searching up 'car hydroplaning.'</em>

<em />

Now that we fully understand the question, let's examine each option individually and determine what is the best thing to do to prevent hydroplaning.

<em><u>option a</u></em>

<em><u>slow down</u></em>

<em><u /></em>

When a persons car begins to hydroplane, it may be going so fast that it becomes difficult to control. Therefore, slowing down to reduce the speed of the car would be your best bet to try and regain control.

<u><em>option b</em></u>

<u><em>speed up</em></u>

<u><em /></u>

Stepping on the accelerator will increase the speed of the car which will cause it continue to skim on the surface of the water. This may cause the driver to lose even more control of the vehicle.

<u><em>option c</em></u>

<u><em>deflate your tires</em></u>

<u><em /></u>

Deflating your tires would not be a very reliable option, as it can make you lose control even more. It is also not a guarantee that you would even be able to deflate your tires.

<u><em>option d</em></u>

<u><em>use cruise control</em></u>

<u><em /></u>

If you put your car on cruise control it can punctually cause you to lose more control and cause your car to increase more speed.

Now that we have gone through each option individually, we can determine that option a 'slow down' is the best thing to do to prevent hydroplaning.

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For a turbulent flow of a fluid in 0.6 m diameter pipe, the velocity 0.15 m from the wall is 2.7 m/s. Estimate the wall shear st
MAVERICK [17]

Answer:

If the turbulent velocity profile in a pipe of diameter 0.6 m may be approximated by u/U=(y/R)^(1/7), where u is in m/s and y is in m and 0.15 m from the pipe.

Explanation:

hope it helps

3 0
3 years ago
I'll mark brainliest plz help
Citrus2011 [14]

Answer:

Explanation:

There are three points in time we need to consider.  At point 0, the mango begins to fall from the tree.  At point 1, the mango reaches the top of the window.  At point 2, the mango reaches the bottom of the window.

We are given the following information:

y₁ = 3 m

y₂ = 3 m − 2.4 m = 0.6 m

t₂ − t₁ = 0.4 s

a = -9.8 m/s²

t₀ = 0 s

v₀ = 0 m/s

We need to find y₀.

Use a constant acceleration equation:

y = y₀ + v₀ t + ½ at²

Evaluated at point 1:

3 = y₀ + (0) t₁ + ½ (-9.8) t₁²

3 = y₀ − 4.9 t₁²

Evaluated at point 2:

0.6 = y₀ + (0) t₂ + ½ (-9.8) t₂²

0.6 = y₀ − 4.9 t₂²

Solve for y₀ in the first equation and substitute into the second:

y₀ = 3 + 4.9 t₁²

0.6 = (3 + 4.9 t₁²) − 4.9 t₂²

0 = 2.4 + 4.9 (t₁² − t₂²)

We know t₂ = t₁ + 0.4:

0 = 2.4 + 4.9 (t₁² − (t₁ + 0.4)²)

0 = 2.4 + 4.9 (t₁² − (t₁² + 0.8 t₁ + 0.16))

0 = 2.4 + 4.9 (t₁² − t₁² − 0.8 t₁ − 0.16)

0 = 2.4 + 4.9 (-0.8 t₁ − 0.16)

0 = 2.4 − 3.92 t₁ − 0.784

0 = 1.616 − 3.92 t₁

t₁ = 0.412

Now we can plug this into the original equation and find y₀:

3 = y₀ − 4.9 t₁²

3 = y₀ − 4.9 (0.412)²

3 = y₀ − 0.83

y₀ = 3.83

Rounded to two significant figures, the height of the tree is 3.8 meters.

7 0
3 years ago
50POINTS
maxonik [38]

Answer:

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Explanation:i helped

7 0
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How can you fix a Nintendo switch if it is a blue screen
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Answer:

This website is for answering and or asking questions, but just buy a new one or put rice in it if it went into something wet. Hope this helps!

Explanation:

be safe, good luck!

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Tech A says that the stoichiometric ratio is 14.7 gallons of air to 1 gallon of fuel. Tech B says it is 14.7 lb of air to 1 lb o
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The person that is correct as regards statement made about stoichiometric ratio is; <em><u>Tech B</u></em>

In air-fuel mixture, when there is a mix air and fuel in the ideal amounts to make an engine to run efficiently,the ideal ratio of air to fuel is known Stoichiometric ratio.

This stoichiometric ratio is the comparison between the weight of the air relative to the weight of the fuel that it has been mixed with.

Now, weight is in lb and as such, tech B is correct because his ratio is 14.7lb to 1 lb.

Read more at; brainly.com/question/16971089

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