Why is it important for drivers to allow more distance between their cars when they travel at faster speed?

Why is it important for drivers to allow more distance between their cars when they travel at faster speed?
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Light travels faster in a material with a lower refractive index. Therefore, light rays that travel a longer distance in a lower refractive index travel at a greater average velocity. What effect does this have on multimode graded-index fiber modal dispersion and bandwidth?

Description : Light travels faster in a material with a lower refractive index. Therefore, light rays that travel a longer distance in a lower refractive index travel at a greater average velocity. What effect does this have on multimode graded-index fiber modal dispersion and bandwidth?

Last Answer : Decreases the time difference between light rays, which reduces modal dispersion and increases fiber bandwidth.

Jackson travels a distance of 100km in 5 hrs. How much faster in kilometer per hr, on an average, must he travel to make a journey in 5/3 hr less time? a) 5 km/hr b) 10km/hr c) 6 km/hr d) 8 km/hr

Description : Jackson travels a distance of 100km in 5 hrs. How much faster in kilometer per hr, on an average, must he travel to make a journey in 5/3 hr less time? a) 5 km/hr b) 10km/hr c) 6 km/hr d) 8 km/hr

Last Answer : B Time required = (5 hrs – 5/3 hrs) =(5 hrs – 100 mints) = (5 hrs – 1hr 40 mints) = 3 hrs 20 mints = 3 1/3 hrs Required speed = (100*3/10) km/hr =30 km/hr Original speed = (100/5)km/hr = 20 km/hr Difference speed = required speed – original speed =(30-20) =10km/hr

Can wind travel faster than the speed of sound? -Geography

Description : Can wind travel faster than the speed of sound? -Geography

Last Answer : Yes, wind can travel faster than the speed of sound. Wind is just the bulk movement of a mass of air through space and is in principle no different from a train speeding along or a comet zipping through space.The speed of sound just describes how fast a mechanical wave travels through a material.

What happens when you travel faster than the speed of light? -Technology

Description : What happens when you travel faster than the speed of light? -Technology

Last Answer : Nothing can move faster than the speed of light. When Einstein set forth his theory of relativity, this was his inviolable postulate: that there was an ultimate cosmic speed limit, and that only ... could ever attain it. All massive particles could only approach it, but would never reach it

The index of refraction measures the speed of light in an optical fiber. Will light travel faster in an optically dense material or in one that is less dense?

Description : The index of refraction measures the speed of light in an optical fiber. Will light travel faster in an optically dense material or in one that is less dense?

Last Answer : Light will travel faster in an optical material that is less dense.

A bus can travel 25% faster than a van. Both start from a certain shop at the same time and reach poin P, 37.5 kms away from the shop at the same time time. On the way, however, the bus lost about 6.25 mins while shopping at the some such places. The speed of the van is. a) 72 b) 73 c) 74 d) 75

Description : A bus can travel 25% faster than a van. Both start from a certain shop at the same time and reach poin P, 37.5 kms away from the shop at the same time time. On the way, however, the bus lost about 6.25 mins while shopping at the some such places. The speed of the van is. a) 72 b) 73 c) 74 d) 75 

Last Answer : A Let speed of the car be x kmph The speed of the train = 125x/100 =5x/4 km/hr Therefore 37.5 / x – 37.5 /(5x/4) = 6.25 /60 37.5 / x – (37.5*4)/5x = 6.25 / 60 37.5 / x – 150 / 5x = 6.25 / 60 37.5 / x – 30/x = 6.25 / 60 7.5 / x = 6.25 / 60 6.25x = 7.5*60 X=72 km/hr

A bus can travel 25% faster than a jeep. Both start from point P at the same time and reach point Q, 225 kms away from P, at the same time. On the way, however, the bus lost about 37.5 minutes while stopping at the certain place. What is the speed of the jeep? a) 64 km/hr b) 72 km/hr c) 68 km/hr d) 56 km/hr

Description : A bus can travel 25% faster than a jeep. Both start from point P at the same time and reach point Q, 225 kms away from P, at the same time. On the way, however, the bus lost about 37.5 minutes while stopping at the ... is the speed of the jeep? a) 64 km/hr b) 72 km/hr c) 68 km/hr d) 56 km/hr

Last Answer : B Let speed of the jeep =x kmph Then, speed of the bus =(100+25)x/100 =125x/100 =5x/4 kmph Time taken by the jeep to travel from P to Q =225/x hours Time taken by the bus to travel from p to Q =225/(5x/4) + ... 225/x=900/5x+37.5/60 225/x=180/x+37.5/60 45/x =37.5/60 37.5x=45*60 X=72 km/hr

When you come upon a vehicle doing 20+mph under the posted limit, and the highway has no posted minimum, is it the slow drivers responsibility to let faster drivers by, or is it the faster drivers responsibility to make their own way around when safe?

Description : When you come upon a vehicle doing 20+mph under the posted limit, and the highway has no posted minimum, is it the slow drivers responsibility to let faster drivers by, or is it the faster drivers responsibility to make their own way around when safe?

Last Answer : answer:Theoretically or really? Theoretically, they should realize that they are going well below the speed limit and let you pass. So theoretically, it is his responsibility. Fat chance. These drivers are ... . So in reality, you as the faster driver, need to take that responsibility on yourself.

A girl covered a definite distance at same speed. Had she moved 6 km/hr faster, she would have taken 30 mins less. If she had moved 4 km/hr slower, she would have taken 30 mins more. The distance (in km) is. a) 50 b) 40 c) 70 d) 60

Description : A girl covered a definite distance at same speed. Had she moved 6 km/hr faster, she would have taken 30 mins less. If she had moved 4 km/hr slower, she would have taken 30 mins more. The distance (in km) is. a) 50 b) 40 c) 70 d) 60

Last Answer : D Let distance = x km Rate = y km/hr x/y - x / (y+6) = 30/60 (x(y+6)-xy) / y(y+6) = ½ (xy +6x - xy) / y(y+6) = ½ 12x = y(y+6) ------------>1 And x/ (y-4) - x/y = 30/60 (Xy - x(y-4 ... = (y+6) / (y-4) 3y - 12 = 2y +12 Y = 24km Put y value in 1 we get 12x = 24 (24+6) 12x = 24 *30 X=60km

Anushiya covered a definite distance at some speed. If she had moved 5 kmph faster, she would have taken 55minutes less. If he had moved 4 kmph slower, she would have taken 55 minutes more. What is the distance in km? a) 110 Km b) 220 km c) 330 km d) 440 km

Description : Anushiya covered a definite distance at some speed. If she had moved 5 kmph faster, she would have taken 55minutes less. If he had moved 4 kmph slower, she would have taken 55 minutes more. What is the distance in km? a) 110 Km b) 220 km c) 330 km d) 440 km

Last Answer : C speed=2V1V2/(V1-V2) = 2*5*4/(5-4) =40 km/hr Distance= vt1 (1+v/v1) =40* 55/60(1+40/5) =40*11/12(1+8) =40*11/12*9 =330 km Therefore the distance is 330km

Would anyone else be more impressed with the drivers of hybrids if their cars looked no different from the non hybrid version?

Description : Would anyone else be more impressed with the drivers of hybrids if their cars looked no different from the non hybrid version?

Last Answer : all cars should look like hybrids. or like this

Californians (and others) do traffic laws allow delivery drivers, repair persons, and others of their ilk to disobey traffic laws the rest of us have to follow?

Description : Californians (and others) do traffic laws allow delivery drivers, repair persons, and others of their ilk to disobey traffic laws the rest of us have to follow?

Last Answer : If you ever get to watch the show Parking Wars on A&E, you’ll see that isn’t the case, at least in Philadelphia.

To cover the greatest distance when gliding, the gliding speed must be: a. Near to the stalling speed b. As high as possible within VNE limits c. About 30% faster than Vmd d. The one that gives the highest L/D ratio

Description : To cover the greatest distance when gliding, the gliding speed must be: a. Near to the stalling speed b. As high as possible within VNE limits c. About 30% faster than Vmd d. The one that gives the highest L/D ratio

Last Answer : d. The one that gives the highest L/D ratio

Light coloured clothes are preferred in summer because (a) light colours are good radiators of heat (b) light colours are poor absorbers of heat (c) they soak sweat faster (d) they allow body heat to escape faster

Description : Light coloured clothes are preferred in summer because (a) light colours are good radiators of heat (b) light colours are poor absorbers of heat (c) they soak sweat faster (d) they allow body heat to escape faster

Last Answer : Ans:(b)

Are there any virtual printer drivers for Mac that allow you to print something to a high quality JPEG (150-300dpi) in the same way you can print a PDF?

Description : Are there any virtual printer drivers for Mac that allow you to print something to a high quality JPEG (150-300dpi) in the same way you can print a PDF?

Last Answer : There’s no way you could open the PDF with, say, InDesign or Illustrator, right? Even if you just downloaded a trial version?

Do car dealers allow learners permit drivers to test drive a car?

Description : Do car dealers allow learners permit drivers to test drive a car?

Last Answer : Doubtfull, but worth a shot.

2 bus start from A & B respectively and travel towards each other at a speed of 150 km/hr and 120 km/hr respectively. By the time they meet, the first bus has travelled by 300km more than the second. The distance between A & B is a) 2700 b) 2800 c) 2750 d) 2457

Description : 2 bus start from A & B respectively and travel towards each other at a speed of 150 km/hr and 120 km/hr respectively. By the time they meet, the first bus has travelled by 300km more than the second. The distance between A & B is a) 2700 b) 2800 c) 2750 d) 2457

Last Answer : A At the time of meeting, Let the distance travelled by the second bus be xkm Then distance covered by the 1st bus is (x+300)km x/120= (x+300) /150 150x = 120(x+300) 150x = 120x +36000 30x = ... X=36000/30 X=1200 So the distance covered between A & B =(x+x+300) =(1200+1200+300) =2700km.

Do you feel paranoid walking in front of cars whose drivers are preparing to back out of a parking spot?

Description : Do you feel paranoid walking in front of cars whose drivers are preparing to back out of a parking spot?

Last Answer : answer:You bet I do. Except that I don’t consider it paranoid. It’s just plain sensible caution. I’m not in that big a rush going through life that I can’t pause an extra minute or two for safety.

Drivers: When you arrive at a 4-way stop intersection at the same instant as other cars, do you follow the rules of right-of-way, or do you play first-come-first-go?

Description : Drivers: When you arrive at a 4-way stop intersection at the same instant as other cars, do you follow the rules of right-of-way, or do you play first-come-first-go?

Last Answer : If you go by the first-come-first-go rule that would assume that you didn’t all arrive at the exact same moment, yes? Kidding, I know what you mean. I usually give the other person the right-of-way unless it was evident that I got there first.

Compared to analog signals, digital signals A. allow faster transmission B. are moreaccurate C. both (a)and (b) D. All of theabove E. None of the above

Description : Compared to analog signals, digital signals A. allow faster transmission B. are moreaccurate C. both (a)and (b) D. All of theabove E. None of the above

Last Answer : both (a)and (b)

A train, travelling at a uniform speed for 360 km, would have taken 48 minutes less to travel the same distance if its speed were 5 km/hr more. Find the original speed of the train. -Maths 10th

Description : A train, travelling at a uniform speed for 360 km, would have taken 48 minutes less to travel the same distance if its speed were 5 km/hr more. Find the original speed of the train. -Maths 10th

Last Answer : Let the speed of train be x km/hr Distance to be travelled = 360km We know that, Time take by the train intially = If the speed was increased by 5km/hr Time taken by train = Difference in the time taken is 48 minutes, x2+5x -2250 = 0 (x+50)(x-45) Speed = 45 km/hr as speed cannot be negative

How do you tell if a car's engine warms up faster by idling it, or just driving it?

Description : How do you tell if a car's engine warms up faster by idling it, or just driving it?

Last Answer : answer:A cars engine naturally degrades of time and use. Using oil as a way of lubricating the massive friction produced by the constant motion of the pistons. Naturally an older engine will have more of a ... always let it run for at least a few minutes before operation, but that could just be me.

Why does red paint on cars fade faster than other colours?

Description : Why does red paint on cars fade faster than other colours?

Last Answer : Clear coat finishes, from the factory, have just about eliminated the red paint color from fading on new vehicles. the color fading has something to do with the pigment color in red paint.

The distance a simple signal can travel in one period is called ………… A. Wavelength B. propagation speed C. Frequency D. both a and b

Description : The distance a simple signal can travel in one period is called ………… A. Wavelength B. propagation speed C. Frequency D. both a and b

Last Answer : A. Wavelength

Rubesh generally takes 80 minutes to reach home from office. Due to rain, he travelled at 2/3rd of his usual speed for the 1st half of the distance. At what speed should rubesh travel the remaining distance to reach home on time? a) 1.5 times the original speed b) 2 times the original speed c) 2.5 times the original speed d) 3 times the original speed e) Cannot reach on time

Description : Rubesh generally takes 80 minutes to reach home from office. Due to rain, he travelled at 2/3rd of his usual speed for the 1st half of the distance. At what speed should rubesh travel the remaining distance ... c) 2.5 times the original speed d) 3 times the original speed e) Cannot reach on time

Last Answer : Under the normal speed, 40 minutes for half the distance Due to rain, time taken will be 40 / (2/3) = 40 × (3/2) = 60 minutes So, in 20 minutes he has to cover the distance he usually covers in 40 minutes. So, he has to travel at twice the original speed. Answer: b)

A this usual rowing rate, Mohit can travel 12 miles downstream in a certain river in 6 hours less than it takes him to travel the same distance upstream. But if he could double his usual rowing rate for his 24 miles round trip, the downstream 12 miles would then take only one hour less than the upstream 12 miles. What is the speed of the current in miles per hour? A.2.5m/hr B.4 m/hr C.8/3 m/hr D. 5/3m/hr

Description : A this usual rowing rate, Mohit can travel 12 miles downstream in a certain river in 6 hours less than it takes him to travel the same distance upstream. But if he could double his usual rowing rate for his 24 miles round trip, ... current in miles per hour? A.2.5m/hr B.4 m/hr C.8/3 m/hr D. 5/3m/hr

Last Answer : Answer-C Basic Formula: Speed of the stream = ½ (a-b) km/hr Explanation: Let the speed in still water be x m/hr Speed of stream be y m/hr Then, speed upstream = x-y m/hr and Speed downstream = x+y m/hr 12/x-y - ... 1] 3y^2 = 8 y so, y = 8/3 speed of the current = 8/3 m/hr = 2 (2/3) m/hr

Loud sound can travel a larger distance due to a)higher amplitude b)higher energy c)higher frequency d)high speed

Description : Loud sound can travel a larger distance due to a)higher amplitude b)higher energy c)higher frequency d)high speed

Last Answer : a)higher amplitude

Thanu can travel 24 miles downstream in a certain river in 12hrs less than it takes him to travel the same distance upstream. But if he could double his usual rowing rate for his 48 mile round trip, the downstream 24 miles would then take only 2hr less than the upstream 24miles. What is the speed of the current in miles per hour? A) 2 / 3 miles/hr B) 8 / 3 miles/hr C) 7 / 5 miles/hr D) 3 / 5 miles/hr

Description : Thanu can travel 24 miles downstream in a certain river in 12hrs less than it takes him to travel the same distance upstream. But if he could double his usual rowing rate for his 48 mile round trip, the downstream 24 miles would ... 3 miles/hr B) 8 / 3 miles/hr C) 7 / 5 miles/hr D) 3 / 5 miles/hr 

Last Answer : ANSWER : B 

A boat takes 27 hrs to travel a distance upstream and takes 9hrs to travel the same distance downstream. If the speed of the boat in still water is 12km/hr, then what is the velocity of the stream? A) 8km/hr B) 6km/hr C) 4km/hr D) None of these

Description : A boat takes 27 hrs to travel a distance upstream and takes 9hrs to travel the same distance downstream. If the speed of the boat in still water is 12km/hr, then what is the velocity of the stream? A) 8km/hr B) 6km/hr C) 4km/hr D) None of these

Last Answer : ANSWER : B  Explanation: Let the velocity of the stream be ‘ y’ km/hr Then the speed of the downstream = (12 + y)km/hr The speed of the upstream = (12 – y)km/hr 9 (12 + y) = 27 (12 – y) 108 + 9y = 324 – 27y 27y + 9y = 324 - 108 36y = 216 y = 6 km/hr

Air Travel is Faster and More Comfortable?

Description : Air Travel is Faster and More Comfortable?

Last Answer : When sorting between your transportation options for your nextvacation, you have undoubtedly considered how you will get to yourfinal destination. There are many different choices. You might packyour family into your ... from one side of the world to another in amatter of hours. Prior to air trav

Consider the following statements: Wheeled tractors are replacing crawler tractors because 1. Wheeled tractors travel faster. 2. Crawler tractors are more expensive. 3. Track parts of a crawler wear out quickly. 4. Crawler tractors have stick control. Of these statements (A) 1, 3 and 4 are correct (B) 2, 3 and 4 are correct (C) 1, 2 and 3 are correct (D) 1, 2 and 4 are correct

Description : Consider the following statements: Wheeled tractors are replacing crawler tractors because 1. Wheeled tractors travel faster. 2. Crawler tractors are more expensive. 3. Track parts of a crawler wear out quickly. 4. ... 4 are correct (C) 1, 2 and 3 are correct (D) 1, 2 and 4 are correct

Last Answer : (C) 1, 2 and 3 are correct

Is there an app that will allow me to play music from my iPhone (via Bluetooth) through my car’s speakers?

Description : Is there an app that will allow me to play music from my iPhone (via Bluetooth) through my car’s speakers?

Last Answer : I don’t believe an app would suffice. I think it’s a hardware limitation. I could be wrong.

Corporate executives who work in top notch companies and travel to their offices in early morning in their air conditioned cars with tinted glasses spending their entire day in their cabins are prone to suffer from the deficiency of: (a) calcitonin (b) cynacobalamin (c) tocopherol (d) cholecalciferol.

Description : Corporate executives who work in top notch companies and travel to their offices in early morning in their air conditioned cars with tinted glasses spending their entire day in their cabins are prone ... from the deficiency of: (a) calcitonin (b) cynacobalamin (c) tocopherol (d) cholecalciferol.

Last Answer : Ans:(b)

Do gases with high molar masses travel through small openings faster than gases with low molar masses?

Description : Do gases with high molar masses travel through small openings faster than gases with low molar masses?

Last Answer : answer:I wouldn’t think so, unless you include a propellant. Sorta like with the aerosol can. I don’t expect mass to matter much unless you’re driving the gas gravitically. All things being equal, I’d guess that you’re looking at the same rate of flow in both cases. But then, I’m no physicist.

A massive object can travel faster than light

Last Answer : The smallest particle of matter is a type of particle inside an atom called a "neutrino". Under special circumstances, these particles can travel faster than light.

What medium does sound travel faster in?

Description : What medium does sound travel faster in?

Last Answer : Sound travels fastest through solids, slower through liquids andslowest through gases.

What medium does sound travel faster in?

Description : What medium does sound travel faster in?

Last Answer : Sound travels fastest through solids, slower through liquids andslowest through gases.

Which of the following statements is false? a. Earthquakes occur in plate boundaries b. The time and location of most major earthquakes can be predicted several days in advance c. Earthquakes can be caused by normal, reverse and strike-slip faulting d. P waves travel faster than both S waves and Surface waves

Description : Which of the following statements is false? a. Earthquakes occur in plate boundaries b. The time and location of most major earthquakes can be predicted several days in advance c. Earthquakes can be ... reverse and strike-slip faulting d. P waves travel faster than both S waves and Surface waves

Last Answer : b. The time and location of most major earthquakes can be predicted several days in advance

Two train travel in opposite directions at 36 kmph and 45 kmph and a man sitting in slower train passes the faster train in 8 seconds. Then length of the faster train is: A.120 m B.140 m C.160 m D.180 m E.None of these

Description : Two train travel in opposite directions at 36 kmph and 45 kmph and a man sitting in slower train passes the faster train in 8 seconds. Then length of the faster train is: A.120 m B.140 m C.160 m D.180 m E.None of these

Last Answer : Answer – D (180 m) Explanation – When OPP. direction-PLUS Relative speed = (36 + 45) km/hr = [81 x 5/18] m/sec = [45/2] m/sec. Length of train = [45/2 x 8] m = 180 m.

The conductive qualities of water will allow electrical current to travel through it. But, is there a point where there is too much water for the electricity to administer a fatal or severe shock?

Description : The conductive qualities of water will allow electrical current to travel through it. But, is there a point where there is too much water for the electricity to administer a fatal or severe shock?

Last Answer : Electricity always follows the path of least resistance, so, no, the current is not “diluted.” A fatal shock can only occur if the current flows through the heart.

What are some jobs that allow for travel opportunities?

Description : What are some jobs that allow for travel opportunities?

Last Answer : Journalism

What occupation/career will allow me to travel and make a difference in the lives of others?

Description : What occupation/career will allow me to travel and make a difference in the lives of others?

Last Answer : seriously…

From what age would you allow a child to travel alone?

Description : How old can a child be when he or she can travel and take care of himself or herself?

Last Answer : When your thinking gets serious. It could be 13-16-18. It depends on upbringing, but I think a 13-14 year old can be allowed to travel alone.

A car's odometer shows 72927 miles, a palindromic number. What are the minimum miles you would need to travel to form another? (a palindrome can be read both forwards and backwards, like 'Kayak') -Riddles

Description : A car's odometer shows 72927 miles, a palindromic number. What are the minimum miles you would need to travel to form another? (a palindrome can be read both forwards and backwards, like 'Kayak') -Riddles

Last Answer : 110 miles. (73037)

A car's odometer shows 72927 miles, a palindromic number. What are the minimum miles you would need to travel to form another? -Riddles

Description : A car's odometer shows 72927 miles, a palindromic number. What are the minimum miles you would need to travel to form another? -Riddles

Last Answer : 110 miles. (73037)

two joggers run 8km north and then 5km west what is the shortest distance to the nearest 10th of a kilometer they must travel to return to their starting point?

Description : two joggers run 8km north and then 5km west what is the shortest distance to the nearest 10th of a kilometer they must travel to return to their starting point?

Last Answer : 9.43

What is your opinion regarding the speed limit drivers should do in the left lane of a highway?

Description : What is your opinion regarding the speed limit drivers should do in the left lane of a highway?

Last Answer : If you have three lanes, the right lane should be for people who want to drive UNDER the speed limit, or for people who are about to exit, or for those entering. The middle lane should be for ... speed you think you can get away with, but no tailgating and no blocking others, holding up traffic.

Why do some drivers fail to speed up before approaching an oncoming hill or gradient?

Description : Why do some drivers fail to speed up before approaching an oncoming hill or gradient?

Last Answer : Many drivers are to busy texting to consider Newton’s basic principles. And let’s face it: how many of us (excluding the little Einsteins out there) actually remember high school physics?

Are police officers and ambulance drivers allowed to speed / go through lights?

Description : Are police officers and ambulance drivers allowed to speed / go through lights?

Last Answer : I think they are exempt in the case of an emergency but they have to follow certain regulations to do so (ie: have lights and sirens going, slow and ensure they can do so safely). I certainly ... believe they can be charged for law breaking by doing so if they follow their own rules and guidelines.