Sunday

July 24, 2016
Number of results: 1,418

**English**

1. He was driving at 70 km an hour. 2. He was driving at 50 miles an hour. 3. He was driving at low speed. 4. He was driving at full speed. (Are they all grammatical? Do you have some other expressions about "at _____"?
*April 16, 2016 by rfvv*

**Englsih**

Posted by rfvv on Tuesday, May 17, 2016 at 2:12am. 1. Can you give me a ride if you are driving? 2. Can you give me a ride if you drive? 3. He will be driving, so ask him to give you a ride. 4. He will drive, so ask him to give you a ride. -------------- Are they all the same ...
*May 17, 2016 by rfvv*

**English**

1. Can you give me a ride if you are driving? 2. Can you give me a ride if you drive? 3. He will be driving, so ask him to give you a ride. 4. He will drive, so ask him to give you a ride. -------------- Are they all the same in meaning? Which expressions do we have to use? ...
*May 17, 2016 by rfvv*

**math help**

Tony is driving to Denver. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes), as shown in the figure below. Tony has 67 miles to his destination after 35 minutes of driving, and he has 55.6 miles to his ...
*March 20, 2010 by Anonymous*

**MATH**

A letter carrier can deliver mail to 112 homes per hour by walking and 168 homes per hour by driving. Question1: By what percent is productivity increased by driving? Question2: If a new ZIP Code system improves driving productivity by 12.5%, what is the new number of homes ...
*February 8, 2014 by kik*

**PLEASE HELP!!!**

two cars are driving toward each other from opposite directions if one is driving 55mph the other is driving 60 mph and the cars are 500miles apart how long before they pass each other? round to the nearest tenth of an hour.
*November 12, 2009 by natalie *

**physics**

I'm driving along at a constant speed in my 3 metre long car when I notice that I am accidentally driving through a red light. If the rear of my car passes under the light 0.3 seconds after the front of my car, how fast am I driving in m/s?
*February 3, 2014 by suresh*

**physics**

I'm driving along at a constant speed in my 3 meter long car when I notice that I am accidentally driving through a red light. If the rear of my car passes under the light 0.3 seconds after the front of my car, how fast am I driving in m/s?
*February 26, 2014 by hamza*

**physics**

I'm driving along at a constant speed in my 3 meter long car when I notice that I am accidentally driving through a red light. If the rear of my car passes under the light 0.3 seconds after the front of my car, how fast am I driving in m/s?
*February 28, 2014 by yogesh*

**10th grade algebra **

two cars are driving toward each other from opposite directions if one is driving 55mph the other is driving 60 mph and the cars are 500miles apart how long before they pass each other? round to the nearest tenth of an hour.
*November 12, 2009 by natalie *

**10th grade algebra**

two cars are driving toward each other from opposite directions if one is driving 55mph the other is driving 60mph and the cars are 500 miles apart how long will it be before they pass each other? round to the nearest tenth of an hour.
*November 12, 2009 by natalie*

**Math**

Two trucks leave the truck stop at the same time, one heading north and one heading south. The truck driving south is driving 15 miles per hour slower than the truck driving north. How fast is the slower truck traveling is they are 1,250 miles apart after 10 hours worth of ...
*June 15, 2016 by TJS91*

**math**

Two cars are driving toward each other from opposite directions. If one is driving 55 mph, the other is driving 60 mph and the cars are 500 miles apart, how long will it be before they pass each other? Round to the nearest tenth of an hour
*September 3, 2010 by Anonymous*

**algebra**

Two cars are driving toward each other from opposite directions. If one is driving 55 mph, the other is driving 60 mph and the cars are 500 miles apart, how long will it be before they pass each other? Round to the nearest tenth of an hour
*January 2, 2011 by Joshua*

**Math**

Jina is driving to Boston. Suppose that the remaining distance to drive (in miles) is a linear function of her driving time (in minutes). When graphed, the function gives a line with a slope of −0.95 Jina has 44 miles remaining after 34 minutes of driving. How many miles...
*April 26, 2016 by Christine N.*

**math**

Laura is driving to Seattle. Suppose that the remaining distance to drive (in miles) is a linear function of her driving time (in minutes). When graphed, the function gives a line with a slope of -0.75. Laura has 51 miles remaining after 33 minutes of driving. How many miles ...
*January 10, 2011 by kia*

**algebra**

Jim was driving to an interview 72 mi away. On the first leg of the trop he drove an average of 30 mph through a long construction zone, but was able to drive 60 mph after passing through this area. If driving time for the trip was 1 1/2 hr, how long was he driving in the ...
*August 22, 2011 by susie*

**algebra**

on a scatter plot how can you determine if driving speed and driving time show a positive, negative or no relationship?
*January 15, 2013 by sandy*

**math**

Mr. Suki plans to drive 900 miles to his farmhouse, driving an average of 50 miles per hour. How many miles per hour faster must he average, while driving to reduce his total driving time by 3 hours?
*October 4, 2008 by i love polka*

**Algebra**

Mrs. Lewis plans to drive 900 miles to her vacation destination, driving an average 50 miles per hour. How many miles per hour faster must she average, while driving, to reduce her total driving time by 3 hours? I'm not sure how to set up the equation. Thanks.
*November 3, 2007 by Rose*

**DRIVING. HELP PLS.**

can someone please explain the actions that should be taken in each step of IPDE process while driving on a highway?
*June 3, 2016 by Anonymous*

**Law**

Why do some believe cell phone while driving should be banned? how is it any different than talking to the people on the passenger's side or driving with you?
*July 18, 2012 by Jazme*

**physics**

Reckless Rick driving along the road at 90 km/hr bumps into Hapless Harry directly in fornt of him who is driving at 88 km/hr. What is the speed of the collision?
*September 3, 2012 by Anonymous*

**algebra**

The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May her driving cost was $310 for 140 mi and in June her cost was $450 for 700 mi. Assume that there is a linear relationship between the monthly cost C of driving a car and the ...
*March 29, 2014 by tim*

**Math**

Kaya drove 200 miles in 5 hours of actual driving time. By driving an average of 10 miles per hour faster, Kaya could have saved how many hours of actual driving time? A. 1 / 6 B. 2 / 3 C. 7 / 10 D. 1 E. 4
*April 30, 2015 by Anonymous*

**math**

Kyle got in his car and started driving toward his grandmother's house. After driving for 1 hour and 47 minutes, Kyle took a break for 31 minutes to have a snack. Then Kyle drove 43 minutes and finally arrived at his grandmother's house at 4:12 P.M. What time did Kyle start ...
*May 1, 2014 by lulu*

**Psychology**

Mrs. Goldman was a little startled when she realized that while driving home, she didn't really remember driving the last mile. For Mrs. Goldman, driving has probably become a(n): a) controlled process. b) metacognitive process. c) time to engage in selective attention. d) ...
*March 13, 2012 by REB*

**algebra**

the time it takes you to get to campus varies inveresly as your driving rate. Driving at a rate of 40 miles per hour, it takes 1.5 hours. How ong would the trip take you driving at a rate of 60 miles per hour?
*November 1, 2012 by Maria*

**English**

I have to write a speech on a pet peeve. I chose aggressive driving. Here is my introduction for the outline. Think? Aggressive Driving Introduction •How many of you have turned on the news or opened a newspaper to find that another human being was seriously injured or killed ...
*August 2, 2011 by lizzie*

**math**

If a mail man could deliver to 112 homes on foot and to 168 homes by driving what percent productivity increase by driving
*May 14, 2013 by pollu*

**math**

Driving at a constant rate, noah covered 130 miles in 3.5 hours. Express his driving rate in feet per minute.
*February 10, 2011 by kaykay*

**math**

Econocar offers two plans for one-week rentals of a compact car. A rate of $295 per week includes the first 1000 km. Extra distance costs 15 cents per kilometre. A weekly rate of $389 allows unlimited driving. Rounded to the nearest kilometre, beyond what driving distance is ...
*May 3, 2014 by Nj*

**English**

1. If you are driving your car now, come here immediately and give me a ride home. ( Is this one correct? In this sentence, the driver is in the middle of driving his car. Is that right?) 2. If you are driving your car after work, give me a ride home. ( In this sentence, the ...
*May 17, 2016 by rfvv*

**Driving**

I'm 15 years old and I'm wondering if I can get one of those books to begin studying for the driving test already in the state of New York? Also, where can I get one? Thanks.
*September 1, 2008 by Anonymous*

**Math**

The Pew Research Center recently polled n= 1048 U.S drivers andfound that 69% enjoyed driving their automobiles. (a) Construct a 95% confidence interval for the proportion of U.S.drivers who enjoy driving their automobiles. (b) In 1991, Gallup Poll reported this percent to be ...
*May 1, 2012 by Cassandra*

**Physics**

Two golf carts are driving towards each other. The first has a mass of 390 kg and is driving east at 20 m/s. The second has a mass of 500 kg and is driving west at 8 m/s. When the two collide their bumpers lock and are stuck together, what is the final speed of the connected ...
*April 7, 2016 by Kevin*

**statistics**

It is a known fact that accidents happen more often driving the car rather than flying. Jim drives 180 days and flies 120 times per year. If for every 110 days driving you get into one accident and for every 10000 flying you get into 3 accidents, what is the probability of ...
*September 29, 2014 by Emelda*

**English**

Okay got that one.. What about The cab driver was driving extremely fast down the street. The very phrase is was driving. Was is a linking verb and driving an action. Is it a linking verb or an action verb? Directions say to underline the verb phrase and indicate action or ...
*November 14, 2011 by Kelley*

**math**

Bob finds that the cost of driving his truck is 92 cents per mile. Give a symbolic and graphical representation for a function f(x) that computes the cost in dollars of driving x miles. Assume 0<x<60
*March 25, 2012 by Kate*

**math**

gregor is planning a driving trip where he knows that half his trip will be along major highways and part on country roads. The speed limit is 100km/h on highways and 60km/h on other roads. the total time he wants to spend driving is 12h. I set up the equation: 10h+6r=12, but ...
*June 1, 2008 by Calie*

**Physics**

Suppose you're driving to the city at a constant speed of 75 mi/h for 50 miles. Then construction slows you to a pokey rate of 45 mi/h for the remainder of the trip. You arrive after driving 2 hours and 15 minutes. How far do you live from the city?. A. 180 mi B. 120 mi C. 200...
*June 1, 2016 by pimp*

**Physics**

Suppose you're driving to the city at a constant speed of 75 mi/h for 50 miles. Then construction slows you to a pokey rate of 45 mi/h for the remainder of the trip. You arrive after driving 2 hours and 15 minutes. How far do you live from the city? A.180 mi B.120 mi C.200 mi ...
*June 1, 2016 by pimp*

**algebraic expression**

Warren is driving to phoenix with three other people . It will take them h hours . If they divide the driving time up evenly, how many hours will Warren drive? thank you.
*July 12, 2014 by S. Fuentes*

**Physics**

While driving her new fuel efficient mini-car, Zelda changes her velocity from 22 km/h [forward] to 85 km/h [forward] while driving 2.0 × 102 m. What is her average acceleration ?
*April 19, 2014 by Corey Brown*

**English**

Outline of my speech on Aggressive Driving. Is this correct? Topic- Aggressive Driving Introduction •Road Rage oInjuries and deaths oIncreasing road rage oGrowing epidemic •Aggressive Driving oDefinition oTypes Verbal Road Rage Quiet Road Rage Epic Road...
*August 6, 2011 by lizzie*

**physics**

A weight of 50.0 N is suspended from a spring that has a force constant of 190 N/m. The system is undamped and is subjected to a harmonic driving force of frequency 10.0 Hz, resulting in a forced-motion amplitude of 4.00 cm. Determine the maximum value of the driving force. N
*January 30, 2011 by sir*

**physicsssss**

You are driving home from school steadily at 95 km/h for 130 km. It then begins to rain and you slow to 60 km/h. You arrive home after driving 3 hours and 40 minutes. 1-How far is your hometown from school? 2-What was your average speed?
*October 9, 2011 by marline*

**college physics **

you are driving home from school at 90 km/h. it then began to rain and you slow to 50km/h. your arrive home after driving 3 hours and 20 minutes, how far is your hometown from school? what is the average speed?
*October 30, 2015 by zain*

**English**

1. Can you give me a ride if you are driving? 2. Can you give me a ride if you drive? 3. He will be driving, so ask him to give you a ride. 4. He will drive, so ask him to give you a ride. -------------- Are they all the same in meaning? Which expressions do we have to use? ...
*May 9, 2016 by rfvv*

**Science **

A student goes to college,driving his car at 20 km per hour. He returns though same route ,driving at 40 km per hour . Find average speed during entire journey
*May 7, 2016 by Riya*

**Math**

When will they meet? Given that... student A : started driving at 9hr at 3mi/hr student B: started driving at 9hr25min at 2mi/hr
*December 8, 2013 by Anonymous*

**Math**

When will they meet? Given that... student A : started driving at 9hr at 3mi/hr student B: started driving at 9hr25min at 2mi/hr
*December 8, 2013 by Anonymous*

**EnglishP**

I am writing a speech on aggressive driving. Here is my thesis statement: Proving that aggressive driving is a growing epidemic across our country is easy, but convincing drivers that there are better ways to handle “Road Rage” is a different story.
*July 28, 2011 by lizzie*

**physics**

A weight of 30.0 N is suspended from a spring that has a force constant of 180 N/m. The system is undamped and is subjected to a harmonic driving force of frequency 11.0 Hz, resulting in a forced-motion amplitude of 5.00 cm. Determine the maximum value of the driving force. ...
*January 28, 2011 by Ro*

**physics**

what is the formula to find..If the driving frequency is reduced slightly (but the driving amplitude remains the same), at what frequency will the amplitude of the mass's oscillation be half of the maximum amplitude?
*March 26, 2012 by Anonymous*

**Statistics**

According to a national poll conducted in 2010, seventy percent of teens reported having sent or received a text message while driving. Assume that I randomly survey 14 teens and asked them whether or not they have sent or received a text message while driving. a) What is the ...
*October 27, 2014 by Bridget*

**Math**

A letter carrier can deliver mail to 112 homes per hour by walking and 168 homes per hour by driving. By what percent is productivity increased by driving?
*May 18, 2013 by Denise*

**law**

person arrested on private drive on suspition of drink driving what are law rules on drink driving. person not on public road. is there a case that could argue he is not guilty
*September 8, 2011 by elizabeth*

**Stat**

6% of american drivers read the newspaper while driving if 300 drivers are selected at random find the probability that between 15 and 25 say they read while driving
*April 30, 2012 by Anonymous*

**Research topic, English**

My research topic is Banning Use of Cell Phones While Driving (include calls and texts) Could you give me some ideas of research questions? I have to have three. I already have three but I am not sure if they are research questions. will banning cellphones while driving going ...
*November 16, 2011 by HM*

**math**

You are driving home from college steadily at 95km/hour for 130km. It begins to rain and you slow to 65km/hour. You arrive home after driving 3 hours and 20 minutes. How far is your hometown from college?
*September 29, 2011 by Sam*

**science**

the tension ratio between the tight and slack side is 4,2:1. the force in the slack side of the belt is 500N. the diameter of the driving pulley is 350mm. the rotational frequency of the driving pulley is 550r/min
*June 28, 2016 by Liezel*

**phyics**

Richard is driving home to visit his parents. 125 of the trip are on the interstate highway where the speed limit is 65 . Normally Richard drives at the speed limit, but today he is running late and decides to take his chances by driving at 72 . how do i get to my answer
*September 11, 2012 by tamika*

**Physics**

Richard is driving home to visit his parents. 125 of the trip are on the interstate highway where the speed limit is 65 . Normally Richard drives at the speed limit, but today he is running late and decides to take his chances by driving at 70. How many min does she save?
*September 16, 2010 by Danny*

**Statistics**

2.) Car insurance companies assume that the longer a person has been driving, the less likely they will be in an accident, and therefore charge new drivers higher insurance premiums than experienced drivers. To determine whether driving experience is related to the amount of ...
*April 16, 2010 by Jayesh Patel*

**Algebra**

At noon, your family starts out .from Louisville to go to Memphis driving at 40 mi/h. Your uncle leaves Memphis to come to Louisville two hours later. He is taking the same route and driving at 60 mi/h. The two cities are 380 miles apart. At what time do the cars meet?
*September 27, 2011 by David*

**Math**

When driving to the beach, you drive 240 miles on 9 gallons of gas. When you arrive at the beach you fill up your gas tank. While there you drive 130 miles and use 5.8 gallons of gas. Round answers to 2 decimal places. What was your gas mileage driving to the beach? What was ...
*November 16, 2013 by Alan*

**stastics**

A survey of drivers in the United States found that 15% never use a cell phone while driving. Suppose that drivers arrive at random at an auto inspection station. a. If the inspector checks 10 drivers, what is the probability that at least one driver never uses a cell phone ...
*May 3, 2011 by level crawford*

**statistic**

A survey of drivers in the United States found that 15% never use a cell phone while driving. Suppose that drivers arrive at random at an auto inspection station. a. If the inspector checks 10 drivers, what is the probability that at least one driver never uses a cell phone ...
*January 5, 2013 by sasha*

**Physics**

As your vacation job, you are driving a concrete mixer (mass 3300 kg). While driving down a hill (angle α = 29° with the horizontal), suddenly, a cow steps out on the road. You hit on the brakes, and with each locked wheel leaving 24 meters of skid marks, you come to a ...
*February 27, 2015 by Breaking on a hill*

**Math**

A letter carrier can deliver mail to 112 homes per hour by walking and 168 homes per hour by driving. By what percent is productivity increased by driving? Answer: 56% Is my answer correct?
*May 13, 2013 by Ann*

**algebra 1**

Your family decides to visit your grandparents that live in ohio. You drive at an average rate of 55 mph when driving in Indiana and 65 mph when driving in Ohio. The entire trip of 295 miles takes 5 hours. How long does it take to reach the Indiana-Ohio border?
*February 24, 2013 by lilly*

**physics **

you live 6 miles away from a movie theatre on a particular day it takes you 18 minutes to get to the movie theatre from your house, only half as much time to get home what was your average speed in mph for driving from the theatre, driving home , and the full round trip?
*July 11, 2016 by glenn*

**math**

you are driving to a vacation spot that is 1500 miles away. Including rest stops, it takes you 42 hours to get to the vacation spot. You estimate that you drove at an average speed of 50 miles per hour. How many hours were you not driving?
*October 17, 2012 by steph*

**math**

you are driving to a vacation spot that is 1500 miles away. Including rest stops, it takes you 42 hours to get to the vacation spot. You estimate that you drove at an average speed of 50 miles per hour. How many hours were you not driving?
*October 17, 2012 by steph*

**algebra 1**

Rod left his house driving south. Marsha left three hours later, driving 42 km/h faster in an effort to catch up to him. After two hours, Marsha finally caught up. Find Rod's rate.
*September 11, 2014 by kaylie*

**Physics**

Jack is driving with a pail of water along a straight pathway at a steady 25 m/s when he passes Jill who is parked in her minivan waiting for him. When Jack is beside Jill, she begins accelerating at the rate of 4.0 × 10−3 m/s2 in the same direction that Jack is driving...
*April 22, 2014 by Corey Brown*

**Physics**

Jack is driving with a pail of water along a straight pathway at a steady 25 m/s when he passes Jill who is parked in her minivan waiting for him. When Jack is beside Jill, she begins accelerating at the rate of 4.0 × 10−3 m/s2 in the same direction that Jack is driving...
*April 23, 2014 by thomas *

**physics**

Jack is driving with a pail of water along a straight pathway at a steady 25 m/s when he passes Jill who is parked in her minivan waiting for him. When Jack is beside Jill, she begins accelerating at the rate of 4.0 × 10−3 m/s2 in the same direction that Jack is driving...
*June 3, 2014 by grey*

**Social Studies**

Which human activity would best support global efforts to improve the environment and to reduce global warming? a. driving a pickup truck across the countryside b. riding a bicycle to a nearby playground*** c. purchasing a SUV from a nearby dealership d. driving a vehicle that...
*January 14, 2016 by Kaai97*

**physics**

Richard is driving home to visit his parents125 mi of the trip are on the interstate highway where the speed limit is 65 mph Normally Richard drives at the speed limit, but today he is running late and decides to take his chances by driving at 80 mph.how many minutes will he ...
*September 19, 2010 by melissa*

**Math**

Suppose you are driving to visit a friend who lives far away. You are driving at an average rate of 55 miles per hour. You must drive a total of 295 miles. If you have already driven 20 miles, how long will it take you to reach your destination? A) 2 hours B) 5 hours* C) 3 ...
*November 12, 2015 by Anonymous *

**Physics**

a speeding car is driving at 120 km/h when it passes a police cruiser that is driving at 100 km/h. One second later, the police cruiser accelerates uniformly at 15 km/h until it reaches a speed of 135 km/h. how long does it take the police cruiser to catch the car
*March 10, 2016 by John*

**statistics**

A 95 confidence interval for the proportion of men that have ever dozed off while driving is 007 to 0.14. For women, a 95% confidence intervAL for the proportion that have dozed off while driving is 0.19 to 0.25. Assume both intervals were computed using larg random samples ...
*July 9, 2012 by Sheri*

**math**

i need help on ratios, gears and teeth.ex. teeth on driving gear A-35 teeth on driving gear B-? gear ratio-2 1/2 to 1 what is gear B, and how will i figure this out?
*December 11, 2008 by Sorrells*

**English**

1. Don't use a cell phone while you are driving. 2. Don't use a cell phone while you drive. 3. Don't use a cell phone while driving. 4. Don't use a cell phone driving. ----------------------------- Which ones are grammatical? Does #3 mean #1 or #2?
*November 17, 2014 by rfvv*

**physics**

Which of the following statements about a system in resonance is true A.The energy of the system is always increasing. B.The greater the damping the larger the amplitude of the oscillations C.The driving force is always in the direction of the velocity. D.The frequency of the ...
*April 16, 2014 by Paige*

**English Check **

Write a paragraph explaining why you think it is a suitable topic for a research paper, based on your research questions. What are the risks of using cell phones when driving? How will the police control people from violating this law? will banning cellphones while driving ...
*November 16, 2011 by HM*

**Algebra 1**

The function f=1,350-45x gives the distance left to travel after driving x hours. What is f(7), the distance left after driving 7 hours?
*May 16, 2011 by Tranese*

**Grammer and capitalization**

Select the sentence with the correct capitalization. A) While driving his Mercedes down Main Street, he was rear-ended by a Toyota. B) While driving his Mercedes down Main street, he was rear-ended by a Toyota. C) while driving his mercedes down Main Street, he was rear-ended ...
*November 7, 2012 by Marie*

**Math-Stat Help **

In a random sample of 78 teenagers, 32 admit to texting while driving. Construct a 98% confidence interval for the percentage of teenager that text while driving. Start by showing that conditions for constructing a confidence interval are met. 1) Check conditions 2) confidence...
*April 11, 2013 by MELISSA *

**algebra**

Paula leaves home driving 40 miles/hr. One hour later Dan leaves home driving in the same direction at the rate of 50 miles/hr. How long will it take dan to catch up with Paula?
*January 6, 2010 by lou*

**Writing **

okay i have this writing assignment on how drunk driving can be stopped .. i have like three sentences to complete it and these three sentences are to explain how/what harsher penalties can help in stopping drunk driving.. I'm stuck because the following are already the ...
*February 27, 2011 by Anon*

**Math - Linear Equations**

A car gets 21 mi/gal in city driving and 28 mi/gal highway driving. If 18 gal of gas are used in traveling 448 mi, how many miles were driven in the city, how many driven on the highway (assuming that only the given rates of usage were actually used)?
*November 19, 2007 by Chuck*

**statistics**

The pew research center recently polled n=1048 u.s. drivers and found that 69% enjoyed driving their cars. In 1991 a poll reported this percent to be 79%. Using the data from this poll ,test the claim that the percent of drivers who enjoy driving their cars has declined since ...
*April 11, 2011 by nikki*

**statistics**

The pew research center recently polled n=1048 u.s. drivers and found that 69% enjoyed driving their cars. In 1991 a poll reported this percent to be 79%. Using the data from this poll ,test the claim that the percent of drivers who enjoy driving their cars has declined since ...
*April 11, 2011 by nikki*

**statistics**

The pew research center recently polled n=1048 u.s. drivers and found that 69% enjoyed driving their cars. In 1991 a poll reported this percent to be 79%. Using the data from this poll ,test the claim that the percent of drivers who enjoy driving their cars has declined since ...
*April 11, 2011 by nikki*

**health >.<**

how would you descibe/define teen driving laws Please tell us how you describe/define them and we'll be glad to critique your answer. but i don't know how to ok, here's what i got: Teenage driving laws are rules that have been made to reduce accidents and increase safety on ...
*April 15, 2007 by anon.s*

**physics**

A driver measures her "cold" tire gauge pressure to be 1.95 105 Pa. The measurement is made before driving, when the tires are at the temperature of the surroundings, 21.7° C. After driving several miles, she checks the gauge pressure again and finds that it has increased to 2...
*April 15, 2011 by ECU*

**Physics (College)**

Driving on asphalt roads entails very little rolling resistance, so most of the energy of the engine goes to overcoming air resistance. But driving slowly in dry sand is another story. If a 1200 kg car is driven in sand at 5.2 m/s, the coefficient of rolling friction is 0.06. ...
*November 26, 2011 by Set11*