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Natural Forces Affecting the Driver In one or more complete sentences, explain how natural laws apply to the following scenarios: How does inertia affect a person who is not wearing a seatbelt during a collision? How does kinetic energy affect the stopping distance of a vehicle traveling at 30 mph compared to the same vehicle traveling at 60 mph? How does kinetic energy affect the stopping distance of a small vehicle compared to a large vehicle? Keeping in mind the kinetic energy of a moving vehicle, how can a driver best prepare to enter sharp curves in the roadway? Using information about natural laws, explain why some car crashes produce minor injuries and others produce catastrophic injuries. Signs, Signals, and Pavement Markings Imagine you are taking a road trip! Select a destination and navigate the trip. Answer the following questions in one or more complete sentences: Where will you go on your trip? You approach a railroad crossing with a cross buck sign that has no lights or gates. What should you do? You arrive at an intersection with traffic lights that are not working because of a power outage. What do you do? There is a flashing yellow light at the intersection you are approaching. What does the flashing yellow light indicate, and what should you do to safely navigate this intersection? On the road you are traveling, the pavement markings change from broken white lines to solid white lines between the lanes of traffic. What does the line change mean? After an hour on the expressway, your passengers need to use the restroom and they want to get some food. As you approach the next exit, what color sign will you look for, and what type of information would you expect to see on that sign? When you take the exit ramp off the expressway and merge onto the next road, you see yellow lines dividing the roadway. What do the yellow lines tell you about the traffic flow?

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Natural Forces Affecting the Driver:

1. While the car stops, the person continues moving the way that the car were moving and then hits the obstacle in the car or the person can be thrown out of the vehicle. If the person wears belt, he will stop moving with the vehicle and won’t hit the obstacle.

2. We count approximate kinetic energy using the formula K = v^2. So the vehicle which is moving at 30 mph will have four times less kinetic energy than vehicle which is moving at 60 mph. If they have the same road conditions, the breaking distance will be four times as great for the car moving twice as fast.

3. Kinetic energy depends on object’s mass and velocity and it has direct relationship with the stopping distance. The lesser mass of the vehicle = the lesser kinetic energy and lesser stopping distance. => If both vehicles have the same velocity, then small vehicle has lesser kinetic energy than large vehicle.

4. We know that kinetic energy has this relationship with velocity K = v^2. So the best way to prepare to enter sharp curves in the roadway is to lower the speed. The most appropriate speed is 20-30 mph, but it depends on road conditions and car’s breaks condition.

5. Car crashes can happen with everyone so the best way is to be prepared. First the driver should wear a seatbelt while he’s driving. He should check his tires and breaks condition regularly. And also it’s important to slow down the vehicle while entering sharp curves. Without following these rules, the driver can get catastrophic injuries in a car crash.

Signs, Signals, and Pavement Markings: 

1. It doesn’t matter where you go. All you need is to learn highway code. It’s very different to know the meanings of every road sign. Also, it’s necessary to check your car’s conditions and you should take some spare parts for your car in case of accidents. So wherever you go, it’s important to be prepared.

2. You should stop before crossing and take few minutes to make sure there is no train approaching. If there is no train approaching, you can pass a railroad crossing. If you see approaching train, you should wait until it will pass a railroad crossing.

3. You should stop before the lights and wait to check the traffic movement and signs. Make sure that everything is safe and pass the intersection. Don’t move fast to avoid accidents.

4. Flashing yellow light means that it’s not necessary to stop but you should to pay attention on the traffic movement. So it would be better to yield before the lights and make sure if it’s safe to move. After that you can cross the intersection.

5. The line change means that the lane changes and you can’t cross solid lines. Pay more attention on road marking because it shows how you should behave on the road or highway.

6. As you approach the next exit and  your passengers need to use the restroom and get some food, you should look for green signs which indicate food and rest stops. You should to slow down if you don’t want to skip the sign.

7. When you take the exit ramp off the expressway and merge onto the next road, you see yellow lines dividing the roadway which indicates that there is oncoming traffic and this is a two-way highway. 

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Upper a 18a 18?-footfoot ladder is leaning against a building. if the bottom of the ladder is sliding along the pavement directly away from the building at 22 ?feet/second, how fast is the top of the ladder moving down when the foot of the ladder is 44 feet from the? wall?

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Find the distance between them
distance between (x1,y1) and (x2,y2) is
D=sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

so distance between (-2,4) and (18,-6) is
D=sqrt{(18-(-2))^2+(-6-4)^2}
D=sqrt{(18+2)^2+(-10)^2}
D=sqrt{(20)^2+100}
D=sqrt{400+100}
D=sqrt{500}
D=10√5

so in ratio 3:7
3+7=10
3/10 of 10√5 is 3√5

I’m thinkin you want R then Q then S such that RQ:QS=3:7
so
distance from R to Q is 3√5
Q is (x,y)
R is (-2,4)
D=3√5

3sqrt{5}=sqrt{(-2-x)^2+(4-y)^2}
3sqrt{5}=sqrt{x^2+4x+4+y^2-8y+16}
square both sides
45=x^2+4x+4+y^2-8y+16
45=x^2+y^2+4x-8y+20

now, ithas to be on the line that R and S are on
do some simple math
slope is rise/run=-10/20=-1/2
y=-1/2x+b
4=-1/2(-2)+b
4=1+b
3=b
y=-1/2x+b

sub that for y in our other equation (45=x^2+y^2+4x-8y+20)

45=x^2+(frac{-1}{2}x+3)^2+4x-8(frac{-1}{2}x+3)+20
I’m too lazy to show you expanstion and whatnot so I’ll give you the solution
we get (after some manipulation)
0=x²+4x-32
what  2numbers multiply to get -32 and add to get 4?
-4 and 8
0=(x-4)(x+8)
set to zero

0=x-4
4=x

0=x+8
-8=x
but wait, -8 is not between -2 and 18 so it can’t be

so x=4

remember, y=-1/2x+3
sub that to get y=-1/2(4)+3=-2+3=1

the point is (4,1)
apologies for mishap

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Posted speed limits are based on which of the following (Select all that apply) A- condition of vehicle B- dry pavement C-good visibility D- idea conditions E- common sense F- speed of other vehicles

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The answer is: D. Knowledge is present in an individual from birth.  

According john Locke, the only way people acquire new knowledge is by conducting various observations to the things that happened around us.

The process of learning occurs throughout our life. As we possess more experience, the more knowledge that we will have on our disposal.

Because of this, John Locke would not believe in an idea that state knowledge is already acquired since birth without having to make any efforts.

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Which sentence features a present participial phrase functioning as an adjective? Blushing furiously, the newcomer couldn’t believe he’d been so gullible. Fatigued after a long day, the woman recuperated with a quiet evening. Our teacher likes to spring impromptu tests on us so we keep studying. The heat radiating from the pavement caused the air to ripple and waver.

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The correct answer is B. For example, forests help the environment by soaking up carbon dioxide, conserving soil, and preventing flooding.

Explanation:

In writing, a transition refers to a word or set of words used to connect different section of sentences, sentences, and even paragraph. There are many types of transitions including transitions of orders such as first, second; transitions of addition such as also; transitions of contrast such as however, etc. each used in different cases and with different purposes. In the case of the text presented the sentence that would have a correct transition if added is “For example, forests help the environment by soaking up carbon dioxide, conserving soil, and preventing flooding”, because this sentence exemplifies the sentence ” Forests are more than just a pretty addition to the landscape” and therefore the use of this transition is appropriate and would make the text clearer.

Also, other options are incorrect, the use of “similarly” in the first sentence is incorrect because there is not a previous sentence or content that be compared, similarly the use of “however” in sentence “forests help people by providing a place to live and by providing jobs” is incorrect because this is a contrast transition and in this case there is not a contrast in the sentence and in the case of the final sentence using “to summarize” is also incorrect because this sentence is not summarizing the content of the paragraph.

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N “The Red-Headed League,” why does Sherlock Holmes beat upon the pavement outside of Jabez Wilson’s office? A. He wants to find out whether Wilson can hear him inside the office. B. He wants to find out where John Clay is hiding in Saxe-Coburg Square. C. He wants to find out if the ground under the pavement has been dug out. D. He wants to find out how strong his walking stick is in case he needs to protect himself.

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Answer:

The correct answers are the following:

1 – A) Appearances may be deceiving.

2 – D) describing Japan’s betrayal.

Explanation:

1 – According to the reader, there were no apparent signs of instability beyond waht could be seen: discoloration of ages, fungi and spider webs, but the foundations and masonry appeared to be solid. However, as we see at the end of the story, the house collapses in a way that parallels the Usher dynasty.

2 – The speaker begins by describing Japan’s betrayal by marking that day as ” a date which will live in infamy.” He goes on to describe this treason by asserting that the attack took place while the US was still in conversation with the Emperor in order to keep peace in the Pacific, and that these conversations were solicited by Japan.

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