Wednesday

April 16, 2014

April 16, 2014

Number of results: 50,561

**Physics**

i have the answers to these i just need explanations; steps on how to do them 1. Heather and Mathew walk with an average velocity of 0.98 m/s eastward. If it takes them 34 min to walk to the store, what is their displacement? 2.If Joe rides his bicycle in a straight line for ...
*Wednesday, January 28, 2009 at 6:07pm by y912f*

**physics**

If Joe rides south on his bicycle in a straight line for 26 min with an average speed of 11.6 km/h, how far has he ridden? Answer in units of km
*Wednesday, September 28, 2011 at 8:40pm by joselyne*

**Physics**

If Joe rides south on his bicycle in a straight line for 29 min with an average speed of 14.8 km/h, how far has he ridden? Answer in units of km
*Tuesday, October 1, 2013 at 8:08pm by alison*

**physics**

if joe rides south on his bicycle in a straight line for 15 miniutes with an average speed of 12.5 km/h, how far has he ridden
*Wednesday, September 20, 2006 at 12:30am by Anonymous*

**PHYSICS**

IF JOE RIDES SOUTH ON HIS BIKE IN A STRAIGHT LINE FORE 15 MIN WITH AN AVERAGE SPEED OF 12.5KM/H, HOW FAR HAS HE RIDDEN?
*Wednesday, September 5, 2007 at 9:38pm by Susie*

**physics**

Heather and Matthew walk eastward with a speed of 0.98 m/s. If it takes them 34 min to walk to the store, how far have they walked? If Joe rides south on his bicycle in a straight line for 15 min with an average speed of 12.5 km/h, how far has he ridden? It takes you 9.5 min ...
*Wednesday, September 20, 2006 at 12:30am by anonymous*

**Physics**

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.60 m/s. During the second part, she rides for 36 minutes at an average speed of 5.40 m/...
*Monday, October 4, 2010 at 1:53am by Bala*

**Physics**

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.60 m/s. During the second part, she rides for 36 minutes at an average speed of 5.40 m/...
*Monday, October 4, 2010 at 9:02am by Bala*

**Physics**

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.60 m/s. During the second part, she rides for 36 minutes at an average speed of 5.40 m/...
*Monday, October 4, 2010 at 11:20am by Bala*

**Ash**

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.80 m/s. During the second part, she rides for 36 minutes at an average speed of 5.20 m/...
*Tuesday, October 5, 2010 at 7:19pm by Anonymous*

**Phyiscs**

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.80 m/s. During the second part, she rides for 36 minutes at an average speed of 5.20 m...
*Tuesday, October 5, 2010 at 7:20pm by Ash*

**Physics **

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.50m/s. During the second part, she rides for 36 minutes at an average speed of 4.30m/s...
*Saturday, September 29, 2012 at 12:49pm by Angie*

**physics**

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.80 m/s. During the second part, she rides for 36 minutes at an average speed of 5.40 m/...
*Friday, October 8, 2010 at 7:34pm by Hillary*

**physics**

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.80 m/s. During the second part, she rides for 36 minutes at an average speed of 5.40 m/...
*Friday, October 8, 2010 at 7:36pm by Hillary*

**Physics**

From t = 0 to t = 5.00 min, a man stands still, and from t = 5.00 min to t = 10.0 min, he walks briskly in a straight line at a constant speed of 2.3 m/s. (a) What is his average velocity vavg in the interval 2.000 min to 7.90 min? I found this to be 1.15 m/s (b) What is his ...
*Monday, September 5, 2011 at 3:57pm by Natalie*

**Physics**

Nora rides a bicycle for 5 min on a curvy road at a constant speeed of 10 m/s . Describe noras ride in terms of position, velocity, and acceleration, compare the distance she rides and her displacement.
*Monday, March 25, 2013 at 9:56am by Ariel*

**physics**

A jogger runs in a straight line with an average velocity of v1=6.6 m/s for t1=6.0 min, and then with an average velocity of v2=5 m/s for t2=3.0 min. What is her average velocity during this time? Answer in units of m/s.
*Wednesday, August 24, 2011 at 9:16am by Elisabeth*

**physical**

From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval 1.00 min to 4.30 min? ...
*Thursday, September 20, 2012 at 7:39am by Aa*

**physical**

From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval 1.00 min to 4.30 min? ...
*Thursday, September 20, 2012 at 8:28am by Aa*

**Physics**

A jogger runs in a straight line with an average velocity of 7.6 m/s for 6.3 min, and then with an average velocity of 3.6 m/s for 3.4 min. What is her total displacement?
*Tuesday, December 6, 2011 at 11:08pm by Amy*

**physics**

A jogger runs in a straight line with an average velocity of v1=10.2 m/s for t1=6.0 min, and then with an average velocity of v2=7.7 m/s for t2=3.0 min. What is her total displacement? Answer in units of m.
*Wednesday, August 24, 2011 at 9:37am by Elisabeth*

**Physics**

Could someone please review my answers and tell me if I am on the right track? Thank you! A student drove to the university from her home and noted that the odometer reading of her car increased by 12.0 km. The trip took 18.0 min. (a) What was her average speed? (b) If the ...
*Friday, August 31, 2012 at 7:31pm by Miaow*

**Physics**

A jogger runs eastward in a straight line with an average speed of 2.25 m/s for 4.98 min and then continues with an average speed of 1.58 m/s for 2.18 min. (Hint: time is in minutes and velocity is in meters/second) (a) What is her total displacement (in m)? _____________m (b...
*Thursday, September 13, 2012 at 12:04am by arcos15*

**Physics**

A boy is cycling at a constant speed along a straight road to his school. The postions of the boy after fixed time intervals are observed. a. What type of position-time graph can be expected for the motion of the bicycle? b. How can the average velocity of the bicycle be ...
*Tuesday, April 15, 2008 at 2:04pm by Jon*

**Ash**

http://www.jiskha.com/search/index.cgi?query=+A+bicyclist+makes+a+trip+that+consists+of+three+parts%2C+each+in+the+same+direction+%28due+north%29+along+a+straight+road.+During+the+first+part%2C+she+rides+for+22+minutes+at+an+average+speed+of+6.80+m%2Fs.+During+the+second+part%...
*Tuesday, October 5, 2010 at 7:19pm by bobpursley*

**Phyiscs**

http://www.jiskha.com/search/index.cgi?query=+A+bicyclist+makes+a+trip+that+consists+of+three+parts%2C+each+in+the+same+direction+%28due+north%29+along+a+straight+road.+During+the+first+part%2C+she+rides+for+22+minutes+at+an+average+speed+of+6.80+m%2Fs.+During+the+second+part%...
*Tuesday, October 5, 2010 at 7:20pm by bobpursley*

**physics**

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 25.7 minutes at an average speed of 8.82 m/s. During the second part, she rides for 29.6 minutes at an average speed of 4....
*Wednesday, February 12, 2014 at 9:54am by Anonymous*

**Physics**

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 21.0 minutes at an average speed of 9.48 m/s. During the second part, she rides for 43.5 minutes at an average speed of 3....
*Tuesday, September 17, 2013 at 10:18pm by anna*

**math**

If Cathy walks for 2 h and rides her bicycle for 1 h, she can travel 36 km. If she walks for 2 h and rides her bicycle for 2 h, she can travel 56 km. How fast can she walk? How fast can she ride her bike? Let w represent walking and b represent biking.
*Monday, March 31, 2014 at 2:25am by Emily*

**chem**

a cyclist rides a bicycle at an average speed 24 miles per hour. If she wants to bike 195km, how long (in hours) must she ride.
*Saturday, September 24, 2011 at 8:20pm by Anonymous*

**Physics**

i have been asking physics questions on this and some people give me the formula, i'm getting the correct answers..please can the same people help me on this that helped me before.. A child rides a bicycle in a circular path with a radius of 2.0 m. The tangential speed of the ...
*Monday, February 16, 2009 at 7:50pm by y912f*

**physics**

From t = 0 to t = 3 min 25 seconds, a man stands still, and from t = 3 min 25 seconds to t = 7 mins 35 s, he walks briskly in a straight line at a constant speed of 1.65 m/s. What is the magnitude of his average velocity vavg over this entire time interval?
*Sunday, March 23, 2014 at 4:04am by Gino*

**physics**

Assuming he travels in a straight line, the distance traveled in two hours is forty kilometres. The average _speed_ is 20km/hr. Of course, he probably did not travel in a straight line. In any case, the average velocity vector is [0,0,0]km/hr.
*Wednesday, September 4, 2013 at 5:27pm by Graham*

**Physics**

A rocket is launched from rest. After 8.0 min, it is 160 Km above the Earth’s surface and is moving at a speed of 7.6 Km/s. Assuming the rocket moves up in a straight line, what are its (a) average velocity and (b) average acceleration?
*Tuesday, September 13, 2011 at 7:25am by John*

**math**

Jim ran for 4 minutes at 400m/min. his distance when Joe started was thus 1600m Joe and Jim then both ran for 10 minutes, and Joe ended up running the same distance as Jim, who had run an extra 4000m. If Joe's speed is x m/min, then 1600 + 4000 = 10x 560 = x So, Jim ran 1600...
*Tuesday, November 29, 2011 at 11:38am by Steve*

**math**

Steve --> 4 drinks/min or .25 min/drink Sue-----> 2 drinks/min or .50 min/drink Jack ---> 4/3 drinks/min, .75 min/drink All together they can mix 4+2 + 4/3 = 22/3 drinks per min or 3/22 min/drink 3/22 min/drink * 20 drinks = 2.73 minutes
*Tuesday, January 6, 2009 at 10:11am by Damon*

**physics**

A golfer rides in a golf cart at an average speed of 3.10 m/s for 29.0 s. She then gets out of the cart and starts walking at an average speed of 1.40 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.20 m/s?
*Friday, October 1, 2010 at 5:22pm by joe*

**physics**

a 150N boy rides a 60N bicycle a total of 200m. The frictional force against forward motion bicycle is 35N. How much work does boy do?
*Friday, November 30, 2012 at 6:34pm by michael*

**math**

For the average speed over a time period t2 to t2, draw a straight line between the two point of the curve for those times, The slope of that line is the average velocity. For the speed at time t, draw a tangent straight line to the curve at that point. The slope of that line ...
*Tuesday, February 9, 2010 at 9:35pm by drwls*

**physics**

I need help with solving these word problems. Marion rides her racing bicycle @ speed of 8 m/s. Bicycle wheels have a radius of 34 cm. What is the angular speed of wheels? How many times does each wheel go around during a 10-min race? A car tire has radius of 33cm. Tire turns ...
*Monday, December 1, 2008 at 8:21pm by physics*

**Physics**

I need help with solving these word problems. Marion rides her racing bicycle @ speed of 8 m/s. Bicycle wheels have a radius of 34 cm. What is the angular speed of wheels? How many times does each wheel go around during a 10-min race? A car tire has radius of 33cm. Tire turns...
*Monday, December 1, 2008 at 8:59pm by physics*

**science**

a bicycle travel 12km in 40 min, what is its average speed
*Thursday, January 24, 2013 at 2:21pm by denise*

**math**

The average time is equal to the sum of the components divided by the number of components. (45 min + 50 min + 36 min + 70 min + 49 min)/5 days= average (250 min)/5 days = 50 min per day
*Thursday, April 11, 2013 at 4:52pm by Alexis*

**math**

Aki’s Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by , where is in hundreds of dollars. How many bicycles should the shop build in order to minimize the average cost per bicycle?
*Monday, August 16, 2010 at 8:31pm by Will*

**physics**

A bicycle traveled 150 meters west from point A to point B. Then it took the same route and came back to point A. It took a total of 2 minutes for the bicycle to return to point A. What is the average speed and average velocity of the bicycle?
*Thursday, January 24, 2013 at 4:59pm by frank*

**Algebra 2**

Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by c(x) =0.1x^2 -0.5x+ 9.295. Where C(x) is in hundreds of dollars, how many bicycles should the shop build to minimize the average cost per bicycle? Thank you ...
*Friday, April 1, 2011 at 12:04am by Esther*

**algabra**

Aki’s Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by C(x) = 0.1x^2-1.2x+9.457, where C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle?
*Monday, September 19, 2011 at 8:48pm by Lois*

**Physics**

A 70 kg bicyclist rides his 7.8 kg bicycle with a speed of 14 m/s. How much work must be done by the brakes to bring the bike and rider to a stop? How far does the bicycle travel if it takes 3.5 s to come to rest?
*Tuesday, March 9, 2010 at 6:18pm by Gracey*

**algebra 2**

I apologize for that. I didn't realize I didn't write the whole problem. Thank you for pointing that out to me. Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by c(x) =0.1x^2 -0.5x+ 9.295. Where C(x) is in ...
*Thursday, March 31, 2011 at 1:54am by Esthermunoz*

**Algebra 2**

I apologize for that. I didn't realize I didn't write the whole problem. Thank you for pointing that out to me. Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by c(x) =0.1x^2 -0.5x+ 9.295. Where C(x) is in ...
*Thursday, March 31, 2011 at 7:08pm by Esther*

**math homework**

Mr. Burton rides out into the country on his bicycle at 9 mph . Four hours later he starts back riding his bicycle at 6 mph. How long will it take him to get back?
*Thursday, October 25, 2012 at 5:22pm by Bob*

**Beginners Algebra**

I am going to guess it looks like a straight line. y = m x + b to find the slope m m = (Y2-Y1)/(X2-X1) for any to points if it really is a line. take the last two points m = (-26 + 14) / (7-4) = -12/3 = -4 put in a point to get b y = -4x + b 22 = -4(-5) + b b = 2 so if it is a...
*Friday, November 26, 2010 at 7:18pm by Damon*

**math**

matt rides his bike between 19 and 22 blocks each day. what would be a reasonable estimate of how much he rides in a week.
*Wednesday, October 26, 2011 at 2:26pm by michael*

**precalculus**

Gloria is planning to ride her bicycle near the transmitter of a radio station. She will be riding from a point 10 miles due east of the transmitter on a straight road to a point 40 miles west and 10 miles north of the transmitter. She has a radio on her bicycle which can pick...
*Monday, June 10, 2013 at 5:32pm by Anonymous*

**algebra**

Average cost of a bicycle is modeled by the function c(x)=.1x^2-1.7x+10 where c(x) is measured in dollars. how many bicycles should be built in order to minimize the average cost per bicycle?
*Wednesday, November 16, 2011 at 7:10pm by mitch*

**math**

jim began a 131 mile bicycle trip to build up stamina for a triathlete competetion.unfortunately his bicycle chain broke, so he finished the trip walking. the whole trip took 4 hours. if jim walks at a rate of 3 miles per hour and rides at 37 miles per hour, find the amount of...
*Friday, September 21, 2012 at 1:02am by bashi*

**Math**

you have to draw a picture for this. If I did it right, I would think you would want the water line to run in a straight line from MW. To find the point on the water main, step 1--I wrote the equation of the line from M to W, using the given points. Equation MW - y = 4x - 6 ...
*Friday, January 14, 2011 at 9:22pm by helper*

**Algebra**

Aki's Bicycle designs has determined that when x hundred bicyles are built, the average cost per bicycle is given by C(x)=0.6^2-0.5x+4.021, where C(x) is in hundreds of dollars. How many biccles should the shop build to minimize the average cost per bicycle? The shop should ...
*Friday, February 6, 2009 at 9:54pm by pj*

**Physics**

A bus travels 340 km south along a straight path with an average velocity of 88 km/h to the south. The bus stops for 22 min, then it travels 230 km south with an average velocity of 75 km/h to the south. How long does the total trip last? Answer in units of h
*Thursday, October 4, 2012 at 9:31pm by Diondre*

**math**

Anna and Julia each take a bicycle trip. Anna rides 20 miles in 1 1/3 hours. Julia rides 246 miles in 16 hours. Which has slower unit rate? By how much?
*Friday, October 29, 2010 at 2:15am by Lilly*

**Algebra**

Aki’s Bicycle has determined that when x hundred bicycles are built, the average cost per bicycle is given by C(x)=-0.2x^2-0.1x+9.743, where C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle? They should build? ...
*Saturday, July 23, 2011 at 8:26pm by Greg*

**math**

please explain the steps: Jim Williamson began a 96-mile bicycle trip to build up stamina for a triathlete competition.Unfortunately, his bicycle chain broke, so he finished the trip walking. The whole trip took 6 hours.If Jim walks at a rate of 4 miles per hour and rides at ...
*Saturday, April 14, 2012 at 4:40pm by micah*

**Physics - Standing Waves**

a) A plot of lnv vs. lnT should be a straight line. Why? b) What is the slope of the straight line? c) What is the intercept of the straight line?
*Thursday, November 4, 2010 at 12:22pm by Jerome*

**physics**

While her kid brother is on a wooden horse at the edge of a merry-go-round, Sheila rides her bicycle parallel to its edge. The wooden horses have a tangential speed of 6 m/s. Sheila rides at 4 m/s. The radius of the merry-go-round is 8 m. At what time intervals does Sheila ...
*Monday, September 29, 2008 at 10:43pm by Charlie*

**Math**

Shaun rides 8 kilo meters west from his house to school. After school he rides 6 kilo meters north to Mario's house. What is the distance from Mario's house to Shaun's house measured in a straight line?
*Monday, April 22, 2013 at 9:07pm by Anna*

**geometry**

The size of a bicycle is determined by the diameter of the wheel. You want a 22-in bicycle for your birthday. What is the area of one of the wheels?
*Thursday, June 21, 2012 at 8:40pm by briana*

**physics**

The average speed of a bicycle, an athlete and a car are 18 km/hr, 7 m/s and 2 km/min respectively. Which among these is the fastest and the slowest one?
*Saturday, May 25, 2013 at 12:01am by param*

**Beginner Alegra**

From a point on a straight road, Nico and Maria are riding bicycles in the same direction. Nico rides at 12mph and Maria rides at 14mph. In how many hours will they be 11 mi apart?
*Sunday, June 17, 2012 at 8:58pm by Jen*

**algebra**

Chad rides 2 hours total on a bicycle trip into the country and back. He rode out at the rate of 18 mph and returned at the rate of 22 mph. How far into the country did Chad ride
*Wednesday, January 29, 2014 at 8:30am by vilawn*

**algebra**

rate1= 1/18 rate2=1/22 combined reate= rate1+rate2=40/18*22 combined rate= 1/9.9 min so,9.9 min LEt me show you another neat way. In in 22*18 min, one machine can do 18, the other 22. so rate= (18+22)/22*18 dissertations= rate*time time= 1dissertation/rate= 22*18/40=9.9min
*Sunday, October 17, 2010 at 9:49pm by bobpursley*

**physics**

In 1954, Roger Bannister became the first human to run a mile in less than 4 minutes. Suppose that a runner on a straight track covers a distance of 1.00 mi in exactly 4.00 min. 1. What is his average speed in mi/h? 2. What is his average speed in ft/s? 3. What is his average ...
*Thursday, January 20, 2011 at 12:31am by andrea*

**algebra**

Aki's Bicycle Design has determined that when x hundred bicycles are built, the average cost per bicycle =0.9x^2-1.7x+10.861, when C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle? C(x)=0.9x^2-1.7x+10.861 = C(x)=0...
*Wednesday, March 5, 2008 at 9:45pm by Becky*

**physics**

A commuting student leaves home and drives to school at an average speed of 42.0 km/h. After 22.0 min he realizes that he has forgotten his homework and returns home to get it at the same average speed. It takes 8.0 min to find the report, after which the trip to school 42.0 ...
*Wednesday, August 31, 2011 at 11:43pm by USC*

**Math**

naturally. A straight line has no min/max.
*Wednesday, November 14, 2012 at 3:06am by Steve*

**Physics**

A 64 kg bicyclist rides his 7.7 kg bicycle with a speed of 13.5 m/s. How much work must be done by the brakes to bring the bike and rider to a stop? How far does the bicycle travel if it takes 4.5 s to come to rest? What is the magnitude of the braking force? I know the work ...
*Saturday, March 13, 2010 at 9:43pm by Physicster*

**Physics**

A body, which is moving along a straight line, has an average acceleration of 6 m/s/s. How much speed does it gain, on the average, during 1 second? A) 6 m/s B) 1/6 m/s C) 6 m D) 6 m/s/s I think C (6 m) is correct
*Wednesday, September 21, 2011 at 11:44am by Crystal*

**physics**

in 1954 roger bannister became the first human to run a mile in less than 4 minutes. suppose that a runner on a straight track covers a distance of 1.00 mi in exactly 4.00 min. What is the average speed in mi/h What is his average speed in ft/s what is his average speed in m/s...
*Monday, September 16, 2013 at 10:51pm by deb*

**algebra 2**

Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by c(x) =0.1x^2 -0.5x+ 9.295 Thank you for your help
*Thursday, March 31, 2011 at 1:54am by Esther*

**Finance**

Joe Jan wants to receive $22,000 each year for the next 22 years. Assume a 6% interest rate compounded annually. How much must Joe invest today?
*Sunday, May 5, 2013 at 12:04am by D Johnson*

**Algebra 1**

A bicycle store costs $2400 per month to operate. The store pays an average of $60 per bike. Then average selling price of each bicycle is $120. How many bicycles must the store sell each month to break even?
*Wednesday, January 9, 2013 at 9:44pm by Chris*

**word problem**

No, that isn't what you must do. You add the RATES of filling drinks to get the rate that they do it together. Then divide 20 drinks by that rate. 4 + 2 + (4/3) drinks/min = 22/3 drinks min, combined Time required = 20 drinks/(22/3 drinks/min) = 60/22 = 2.73 minutes
*Thursday, March 5, 2009 at 12:27pm by drwls*

**calculus**

hi we have been given a graph and we need to fing its equation. the graph is logistic. we are asked to take any six points on it and then apply appropriate log to get a straight line. i dont know how to get that straight line? i just know for exponential logy vs x gives a ...
*Thursday, June 11, 2009 at 8:19am by thoung*

**Straight Lines**

The axes being inclined at an angle of 30°, find the equation to the straight line which passes through the point(-2,3) and is perpendicular to the straight line y + 3x = 6
*Saturday, January 21, 2012 at 11:53pm by Kewal*

**physics**

A motorist drives south at 26.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.40 min trip, find the following values.find displacement, average speed, and average velocity
*Wednesday, October 5, 2011 at 6:40pm by jon*

**math**

Jim and Joe were running together. Jim's average speed was 400 meters per minute.Jim started running four minutes before Joe. ten minutes after Joe started, he caught up with Jim. What was Joe's average speed?
*Tuesday, November 29, 2011 at 11:38am by iris*

**physics**

Compute your average velocity in the following two cases: (a) You walk 73.6 m at a speed of 1.79 m/s and then run 73.6 m at a speed of 4.31 m/s along a straight track. (b) You walk for 1.00 min at a speed of 1.79 m/s and then run for 1.30 min at 4.31 m/s along a straight track.
*Sunday, September 9, 2012 at 12:14pm by Corey*

**algebra**

You want (x,-3) to be on the same straight line as the other two points. Figure out the equation for that straight line. The slope is [7 - (-5)/[6 - (-2)] = 3/2 The line equation is y = (3/2)x + b The value of b is given by 7 = (3/2)6 + b = 9 + b Therefore b = -2 and the line ...
*Thursday, January 28, 2010 at 8:33pm by drwls*

**Mathematics**

1 h = 60 min 9 h 07 mim = 8 h + 1 h + 7 min = 8 h + 60 min + 7 min = 8 h 67 min 9 h 7 min - 8 h 55 min = 8 h 67 min - 8 h 55 min = 12 min Distance : 1083 km - 957 km = 126 km The average speed : 1 h = 60 min 12 min = 1 / 5 h 126 / ( 1 / 5 ) = 5 * 126 = 630 km / h
*Tuesday, July 31, 2012 at 10:34am by Bosnian*

**algebra**

X min. = Joe's time. 2x/3 = Frank's time. 1/x + 3/2x = 1/40 Multiply both sides by 2x: 2 + 3 = x/20 x/20 = 5 X = 100 min. = Joe's time. 2x/3=200/3 = 66.67 min. = Frank's time.
*Tuesday, April 23, 2013 at 10:58pm by Henry *

**physics**

A train at a constant 68.0 km/h moves east for 41 min, then in a direction 65.0° east of due north for 22.0 min, and then west for 60.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
*Sunday, October 7, 2012 at 6:26pm by tatiana*

**physics**

A train at a constant 68.0 km/h moves east for 41 min, then in a direction 65.0° east of due north for 22.0 min, and then west for 60.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
*Sunday, October 7, 2012 at 6:26pm by tatiana*

**math**

Joe has x number of stamps. 6x = 22 x = 22/6 x = 3 2/3 Ooops! You must have a typo in your problem. Joe probably doesn't have a fraction of a stamp.
*Saturday, November 9, 2013 at 8:12pm by Ms. Sue*

**Math-Algebra**

That is just the equation of a straight line like the earlier one. Try x = 0 2 y = 4 y = 2 so (0,2) is on your line Now try y = 0 x = 4 so (4,0) is on your line. graph those two points, put a straight line through them.
*Thursday, February 12, 2009 at 7:00pm by Damon*

**physics**

a car crosses the street ABC. the segment AB = average speed of 60km / h for 2 hours, the length BC = average speed of 90km / h for 1 h. the average speed of car travel in AC is? the route is a straight line
*Sunday, October 10, 2010 at 12:06am by liz*

**physic- i need to know today!**

wait so a is a line that goes upp b. is a straight line across? c. a straight line going down d. a parabola?
*Sunday, December 11, 2011 at 6:35pm by Rebecca*

**math**

This is an SAT prep question. Senai customized her bicycle by exchanging the front wheel for a wheel that had one half the diameter of the back wheel. Now Senai rides the bicycle, how many revolution does the front wheel make for each revolution on the back wheel? A)8 B)4 C)2...
*Friday, October 31, 2008 at 7:50pm by Anonymous*

**physics**

A driver runs to the south at 20 m / s for 3 min, then turns west and runs to 25 m / s for 2 min, and finally turns to the northwest at 30 ni / s for I min. Find in this movement, 6 min, (a) the displacement vector the driver, (b) the speed climb and the average driver (C) the...
*Sunday, August 22, 2010 at 11:23pm by EXCEL*

**physics**

sorry !! A driver runs to the south at 20 m / s for 3 min, then turns west and runs to 25 m / s for 2 min, and finally turns to the northwest at 30 ni / s for I min. Find in this movement, 6 min, (a) the displacement vector the driver, (b) the speed climb and the average ...
*Sunday, August 22, 2010 at 11:23pm by EXCEL*

**Phisic**

A driver runs to the south at 20 m / s for 3 min, then turns west and runs to 25 m / s for 2 min, and finally turns to the northwest at 30 ni / s for I min. Find in this movement, 6 min, (a) the displacement vector the driver, (b) the speed climb and the average driver (C) the...
*Monday, August 23, 2010 at 12:21pm by EXCEL*

**Chemistry**

Won't the line be a straight line as long as you haven't reached the limiting reagent part. I think you want the point. You may want to pick two or three points and use the average.
*Wednesday, March 11, 2009 at 11:17pm by DrBob222*

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