Monday

January 26, 2015

January 26, 2015

Number of results: 48,183

**Algebra**

trains a and b are traveling in the same direction on parallel tracks. train a is traveling at 60 miles per hour and train b is traveling at 64 miles per hour. train a passes a station at 1:25 pm. if train b passes the same station at 1:55 pm, at what time will train b catch ...
*March 1, 2010 by Leila*

**algebra**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 Miles per hour and train B is traveling at 88 miles per hour. Train A passes a station at 1:20 am A.M. If train B passes the same station at 1:35 A.M., at what time will train B ...
*March 10, 2010 by Ed*

**algebra**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 70 miles per hour. Train A passes the station at 10:15 p.m. If train B passes the same station at 10:27 p.m, at what time will train B ...
*March 28, 2010 by Anonymous*

**algebra**

trains A and B are traveling in the same direction on paraleel tracks. Train A is traveling at 80 miles per hour and train B is traveling at 88 miles per hour. Train a passes a station at 5:10 P.M. If train B passes the same station at 5:40 P.M., at what time will train B ...
*October 23, 2011 by Natasha*

**Physics**

A car rounds a curve that is banked inward. The radius of curvature of the road is R = 109, the banking angle is θ = 25°, and the coefficient of static friction is μs = 0.24. Find the minimum speed that the car can have without slipping.
*October 2, 2012 by Find the maximum speed that the car can have witho*

**science**

A bowling ball weighing 71.3 is attached to the ceiling by a rope of length 3.77 . The ball is pulled to one side and released; it then swings back and forth as a pendulum. As the rope swings through the vertical, the speed of the bowling ball is 5.00 .
*August 13, 2012 by jewst*

**math**

One train left the station and traveled toward its destination at a speed of 65 miles per hour. Later, another train left the station traveling in the opposite direction of the first train, it was going at a speed of 75 miles per hour. After the first train had traveled for 14...
*May 23, 2013 by jake*

**Math **

the speed of train A is 16 mph slower than the speed of train B. Train A travels 210 miles in the same time it takes train B to travel 290 miles. Find the speed of each train. Train A = 58 mph Train B = 74 mph Can you tell me if this is right
*October 17, 2009 by Help *

**Physics**

Hi everyone, finished all my utexas physics homework, save this last question... I don't quite why I'm not getting the right answer. Any help offered will be appreciated, it could lead me to the right answer :) P.S.---- I've already imputed the following four answers which ...
*October 24, 2010 by Kyle*

**Physics**

Hi everyone, finished all my utexas physics homework, save this last question... I don't quite why I'm not getting the right answer. Any help offered will be appreciated, it could lead me to the right answer :) P.S.---- I've already imputed the following four answers which ...
*October 24, 2010 by Kyle*

**physics**

A bowling ball weighing 71.2 is attached to the ceiling by a 3.90 rope. The ball is pulled to one side and released; it then swings back and forth like a pendulum. As the rope swings through its lowest point, the speed of the bowling ball is measured at 4.20 .
*June 15, 2010 by brad*

**physics**

A train pulls away from a station with a constant acceleration of 0.44 m/s2. A passenger arrives at a point next to the track 6.2 s after the end of the train has passed the very same point. What is the slowest constant speed at which she can run and still catch the train?
*September 19, 2010 by Chip*

**physics**

Suppose the coefficient of static friction between the road and the tires on a Formula One car is 0.7 during a Grand Prix auto race. What speed will put the car on the verge of sliding as it rounds a level curve of 39.0 m radius?
*November 17, 2012 by fadsfads*

**physics**

a 10,000hg car rounds a curve of radius 1200ft at 50mph what is its centripetal acceleration?
*July 7, 2012 by John*

**Science**

1.A model train traveling at a constant speed around a circular trak has a constant velocity. True False**** 2.Which of the following would be affected if a soaring eagle changes direction but remained at a constant speed? A. Acceleration only B. Velocity only**** C. ...
*January 14, 2015 by Callie*

**Physics**

A passenger on a train traveling 90km/h on a straight, level track notes that it takes another train (180 m long and moving with constant velocity) 4.0s to pass by. What is the velocity of that passing train relative to the ground? **please include explanation** thnx!!
*July 1, 2008 by David*

**physics**

One end of a massless coil spring is suspended from a rigid ceiling. It is found that when a 4 kg mass is suspended from it the spring stretches 90 mm when the mass comes to rest. (a) What is the spring constant for the spring B)If the mass is then pulled down an additional ...
*October 31, 2011 by Andrea*

**physics**

Posted by sandhu on Wednesday, November 24, 2010 at 4:29am. The firetruck goes around a 180°, 162 m radius circular curve. It enters the curve with a speed of 12.6 m/s and leaves the curve with a speed of 38.8 m/s. Assuming the speed changes at a constant rate, what is the ...
*November 24, 2010 by sandhu*

**Science**

#1. Kilometers per hour describes the speed of an object. ture false **** #2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? a) an airplane flying across the sky b) a car traveling next to you at the same speed ...
*February 27, 2014 by Mindy *

**Physics**

Find the speed at which Superman (mass=88.0 kg) must fly into a train (mass = 17998 kg) traveling at 60.0 km/hr to stop it. Running into the train at that speed would severely damage both train and passengers. Calculate the minimum time Superman must take to stop the train, if...
*March 29, 2011 by Lily*

**Physics**

Find the speed at which Superman (mass=88.0 kg) must fly into a train (mass = 17998 kg) traveling at 60.0 km/hr to stop it. Running into the train at that speed would severely damage both train and passengers. Calculate the minimum time Superman must take to stop the train, if...
*March 27, 2011 by Daniel*

**physics**

One end of a massless coil spring is suspended from a rigid ceiling. It is found that when a 3.3 kg mass is suspended from it the spring stretches 105 mm when the mass comes to rest. (a) What is the spring constant for the spring? (b) If the mass is then pulled down an ...
*November 1, 2011 by Austin*

**algebra 2**

I don't know how to do this the speed of train A is 18mph slower than the speed of train B train A travels 190 miles in the same time it takes train B to travel 280 miles find the speed of each train please help so i can pass my quiz.
*March 29, 2012 by karon*

**math,correction**

Problem #1 Number problem. If one-half of one integer is subtracted from three-fifths of the next consecutive integer, the difference is 3. What are the two integers? My answer is: the two integers are 24 & 25 Problem#2 Science and medicine. A passenger train can travel 325 mi...
*March 7, 2007 by jas20*

**Science help! URGENT. Check answers**

1. True or False? A model train traveling at a constant speed around a circular track has a constant velocity. (False) 2.Which of the following would be affected if a soaring eagle changed direction but remained at a constant speed? acceleration only velocity only acceleration...
*October 15, 2013 by Elena*

**science**

If you were riding on a train, which of the following would look as if it is not moving? the conductor walking by you a building you are passing a flying bird<---- a person sitting next to you Which of the following reference points would allow you to observe the speed of a...
*April 13, 2014 by Anonymous*

**Algebra**

A train left mooseport traveling west at 50 mph. One hour later, another train left mooseport traveling east at 70 mph. How many hours had the first train been traveling when they were 350 miles apart.
*October 16, 2014 by Anonymous*

**Science**

when you ride in a train that passes a train moving in the opposite direction, the other train appears to rush past you at a greater speed than if you were watching from a parked car at a crossing. how does the speed of your train affect your impression of the passing train's ...
*November 2, 2011 by Andrew*

**algebra**

The speed of train A is 6 mph slower than the speed of train B. Train A travels 230 miles in the same time it takes train B to travel 260 miles. Find the speed of each train?
*March 10, 2010 by kathy*

**math**

The speed of a train A is 8mph slower than the speed of train B. Train A travels 230 miles in same time it takes train B to travel 270 miles. Find the speed of each train.
*April 21, 2010 by Karen*

**math**

the speed of a train a is 6 mph slower than the speed of train b. train a travels 220 miles in the same time it takes train b to travel 250 miles. find the speed of each train
*August 19, 2010 by summer*

**algebra**

when will train b catch up with train b if train a is traveling 60 mph and passes station at 1:25pm While train b is traveling 80 mph and passes staion at 1:40pm?
*March 30, 2011 by kia*

**MAT/116**

I have been looking for a formula to do an equation with " Train A and Train B, I need to find out when Train B will catch Train A. Trian A is traveling at 40 miles per hour, train B is traveling at 48 miles per hour. Train A passes a station at 8:10p.m.. If Trian B passes the...
*August 12, 2010 by Marilynn*

**Physics**

A dragster maintains a speedometer reading of 100 km/h and passes through a curve with a constant radius. Which statement is true? 1. The dragster rounded the curve at a changing velocity of 100 km/h. 2. The dragster moved along a straight line at a constant velocity of 100 km...
*April 28, 2011 by Leslie*

**Algebra I**

1. A Passenger train's speed is 60mi/h and a freight train's speed is 40mi/h. The passenger train travels the same distance in 1.5 h less time than the freight train. How long does each train take to make the trip? 2. Lois rode her bike to visit a friend. She traveled at 10 mi...
*October 9, 2007 by Wilford*

**math algebra**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hour and train B is travleing at 100 miles per hour. Train A pases a station at 3:20. If train B passes the same station at 3:35 pm, at what time will train B cathc up ...
*January 26, 2010 by chica*

**Physics**

A movie stunt man (mass 82.3 kg) stands on a window ledge 5.69 m above the floor. Grabbing a rope attached to a chandelier, he swings down to grapple with the movie’s villain (mass 72.3 kg), who is standing directly under the chandelier. (Assume that the stunt man’s center of ...
*March 13, 2008 by Charlie*

**physical**

The radius of the track is 50 meter.He starts at point A and maintain a constant speed.He finishes three completed round in 9 minutes.What was his displacement after three rounds.
*January 18, 2011 by Ayanda*

**algebra**

please tell me if these are right. Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb. mixture that is 11% protein? 80 pounds soybean and 160 pounds of cornmeal Trains A and B are traveling in the sme ...
*August 5, 2011 by babs*

**Physics for engineers**

A bowling ball weighing 71.3 is attached to the ceiling by a rope of length 3.73 . The ball is pulled to one side and released; it then swings back and forth as a pendulum. As the rope swings through the vertical, the speed of the bowling ball is 4.60 . What is the ...
*March 13, 2013 by Matabase*

**Physics - Force**

A high-speed maglev train is traveling with a changing velocity. what can be said about the forces acting on the train? Thanks!
*September 24, 2014 by Tim*

**physics**

A 2100 kg car rounds a curve of 67 m banked at an angle of 13. If the car is traveling at 105 km/h, will a friction force be required? If so, in what direction?
*October 29, 2010 by Emma*

**trig**

two trains leave Kansas City at the same time. Train A is traveling due north at 55 mph, train B is traveling west at the rate of 65 mph. Find the distance between the two trains two hours later and the bearing of train B from train A.
*October 16, 2012 by Anonymous*

**Physics**

As a train accelerates from a station, it reaches a speed of 4.7m/s in 5.0s. If a train acceleration remains constant what is its speed after an additional 6.0s has elapsed?
*January 21, 2011 by Lesh*

**Physics**

A train moving with constant velocity travels 190 north in 14s and an undetermined distance to the west. The speed of the train is 36m/s. Find the direction of the train's motion relative to north. How far west has the train traveled?
*February 7, 2013 by Chelsea*

**physics**

Find the speed at which Superman (mass=89.0 kg) must fly into a train (mass = 19564 kg) traveling at 65.0 km/hr to stop it. The system (train + Superman) must end up with zero momentum. With no external forces, Superman's initial momentum must be equal and oppositely directed ...
*February 20, 2008 by katie*

**physics-2**

A tracks extends a distance of 478 km without a curve. Supposed a train with an initial speed of 72 km/h travels along the entire length of straight track with a uniform acceleration. the train reaches the end of the track in 5 h, 39 min. What is the trains final speed?
*September 16, 2009 by NoNo100*

**Engineering Physics**

A car and a train move together along straight, parallel paths with the same constant cruising speed v(initial). At t=0 the car driver notices a red light ahead and slows down with constant acceleration -a(initial). Just as the car comes to a full stop, the light immediately ...
*September 16, 2009 by Andrew Rozmarynowycz*

**Science**

2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? A. An airplane flying acroos the sky. B. A car traveling next to you at the same speed you are traveling. C. A car traveling next to you at a faster speed than ...
*January 13, 2015 by Callie*

**physics**

A large, solid metal sphere is suspended from a the ceiling by a cable, and is free to rotate about the wire. If the mass of the sphere is 176 kg, its radius is 0.7 m, and it is initially rotating at 28 rpm (revolutions per minute), what work is required to increase its ...
*November 15, 2011 by john*

**physics**

Cora is a passenger in a car traveling east along a country highway that is parallel to a railroad track and clear of any traffic. Her friend Liz is driving. They come up behind the last car of a train on the track. Initially, the train is moving a little slower than they are...
*January 30, 2012 by Kathy*

**algebra**

the speed of a passenger train is 20mph faster than the speed of a freight train. the passenger train travels 300 miles in the same time it takes the freight train to travel 200miles find the speed of each train.
*December 13, 2011 by karon*

**Physics**

As shown in the picture to the right, a ball is suspended from the ceiling by a string of negligible mass. When the ball is set into motion such that it moves in a horizontal circle at a constant speed of 1.6m/s, the tension in the string is 7.7N. What is the length of the ...
*May 9, 2014 by T.J.*

**College Algebra 2**

The speed of train A is 16 mph slower than train B. Train A travels 190 mph in the same time it takes train B to travel 270 miles. Find the speed of each train.
*September 25, 2011 by Francine*

**physics**

need help on this three part one its about inelastic collisions momentum and energy related with work Find the speed at which Superman (mass=76.0 kg) must fly into a train (mass = 17620 kg) traveling at 60.0 km/hr to stop it. Running into the train at that speed would severely...
*February 26, 2008 by kdhgwiu*

**math**

the speed of train A is 14 mph slower than train B. Train A travels 190 miles in the same time it takes train B to travel 260 miles. What is the speed of each train?
*March 31, 2013 by pam*

**Physics URGENT!!!**

A commuter train passes a passenger platform at a constant speed of 31 m/s. The train horn is sounded at its characteristic frequency of 330 Hz.Assume the speed of sound is 343 m/s. (a) What is the frequency detected by a person on the platform as the train approaches? (b) ...
*December 2, 2012 by Anonymous*

**pre algebra**

train A leaves a station at 1:15 PM,traveling 60 mph.Train B leaves the same station, in the same direction as train A,15 minutes later.If train B travels 90mphm when (clock time)will train B catch up to train A and how far down the track does this occur?
*November 8, 2010 by mary*

**Physics**

A bowling ball weighing 71.2 N is attached to the ceiling by a 3.80 m rope. The ball is pulled to one side and released; it then swings back and forth like a pedulum. as the rope swings through its lowest point, the speed of the bowling ball is measured at 4.20 m/s. At that ...
*June 15, 2009 by Sarah*

**Physics**

A light-rail commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 336 m/s. a)An observer waiting at the crossing receives a frequency of 205 Hz. What is the speed of the train?
*September 3, 2013 by Ben*

**Physics**

A light-rail commuter train blows its 200 Hz horn as it approaches a crossing. The speed of sound is 336 m/s. a)An observer waiting at the crossing receives a frequency of 205 Hz. What is the speed of the train?
*September 3, 2013 by Ben*

**Science ~CHECK ANSWERS PLEASE~**

#1. Kilometers per hour describes the speed of an object. ture false **** #2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? a) an airplane flying across the sky b) a car traveling next to you at the same speed ...
*February 27, 2014 by Mindy *

**algebra**

train A and B are traveling in the same direction on parallel tracks. train A is going 80 miles per hour train B is going 84 miles per hour. train A past a station at 2:15 am train B passes at 2:45 am what time will train B catch train A
*October 21, 2010 by brian*

**Physics**

A train is moving along a straight horizontal track. A pendulum suspended from the roof of one of the carriages of train is inclined at four degree to the vertical. Calculate tge acceleration of train
*August 24, 2011 by Einstine*

**Physics**

The cake company truck is on it's way deliver a cake for a party when it rounds a curve of radius 20 m at a speed of 12 m/s. What coefficient of friction is needed between the cake pan and the truck in order to keep the pan from slipping? please show work!
*February 9, 2011 by coefficient of fric?*

**MATH Algebra**

The speed of a passenger train is 6 mph faster than the speed of a freight train. The passenger train travels 280 miles in the same time it takes the freight train to travel 250 miles. Find the speed of each train. What is the speed of passenger train? ____mph What is the ...
*August 7, 2009 by Anonymous*

**physics**

A train moving with constant velocity travels 190 m north in 12 and an undetermined distance to the west. The speed of the train is 36 m/s. Find the direction of the train's motion relative to north.
*September 16, 2011 by anonymous*

**math**

IF the speed of train A is 10 mph slower than train B. Train A travels 220 miles in the same time it takes train B to travel 270. What is the speed of both trains.
*April 27, 2013 by nannypam*

**physics**

A juggler traveling in a train on level track throws a ball straight up, relative to the train, with a speed of 5.75 m/s. The train has a velocity of 19 m/s due east. (a) As observed by the juggler, what is the ball's total time of flight? s What is the displacement of the ...
*May 30, 2013 by James*

**PHYSICS**

A TRAIN LEAVES THE STATION AT THE 0.0 M MARKER TRAVELING WITH A CONSTANT VELOCITY OF 36.0 M/S. A) WHAT IS THE VELOCITY OF THE TRAIN IN KM/HR.
*August 13, 2012 by Anonymous*

**Physics**

A crystal chandelier hangs in a fancy ballroom. Draw a free body diagram for the chandelier, including all vertical forcs affecting it. Please help :)
*February 4, 2012 by Tracy*

**algebra**

a passenger train traveling at 50 mph leaves the station 6 hours after a freight train and ovetakes it in 4 hours . How fast is the freight train traveling ?
*June 29, 2012 by naaman*

**physics**

.250 kg toy airplane is suspended from the ceiling in a conical pendulum. It flies with a radius of 10 cm, and has a period of 20 seconds. Find the centripetal force acting on the plane?
*May 14, 2011 by Elizabeth*

**algebra 1b**

the speed of a passenger train is 18mph faster than the speed of a freight train. The passenger train travels 310 miles in the same time it takes the freight train to travel 220 miles. Find the speed of each train passenger train mph and freight train mph
*March 21, 2012 by kay*

**physics**

a 2.0 kg bad is held by a string to the ceiling . A 10 g bullet traveling at 200 m/s strikes the stationary bag. the height after the collision is 10.0 cm. assuming there is no friction, determine the speed, in meters per second, of the bag after the collisaon.
*January 12, 2013 by terry*

**physics**

A bowling ball weighing 71.8 N is attached to the ceiling by a rope of length 3.83 m. The ball is pulled to one side and released; it then swings back and forth as a pendulum. As the rope swings through the vertical, the speed of the bowling ball is 4.50 m/s. What is the ...
*September 23, 2010 by ami*

**Dynamics**

During a high-speed chase, a 2400-lb sports car traveling at a speed of 100 mi/h just loses contact with the road as it reaches the crest A of a hill. a) Determine the radius of curvature r of the vertical profile of the road at A. b) Using the value of r found in a part a), ...
*March 24, 2011 by Sarah*

**physics**

A train whistle is heard at 280Hz as the train approaches town. The train cuts its speed in half as it nears the station, and the sound of the whistle is then 270 Hz. What is the speed of the train before slowing down? What is the speed of the train after slowing down?
*January 21, 2015 by henry*

**Physics, help with a similar problem I just posted**

I posted a the same problem with different numbers a minute ago. The answer to the problem below (same as the other with different numbers) is 28 degrees. Maybe this will help to solve it? Thanks! A block is hung by a string from the inside roof of a van. When the van goes ...
*October 19, 2011 by Dan*

**physics help pleased**

Two trains on separate tracks move toward one another. Train 1 has a speed of 125 km/h and train 2 a speed of 100.0 km/h. Train 2 blows its horn, emitting a frequency of 500 Hz. What is the frequency heard by the engineer on train 1? (Assume the speed of sound is 345 m/s.)
*January 28, 2011 by julie*

**Math**

5) A freight train leaves a station traveling at 32 km/h. Two hours later, a passenger train leaves the same station traveling in the same direction at 52 km/h. How long does it takes the passenger train to catch up to the freight train? Its a basic question but i never ...
*September 11, 2008 by Pat Stout*

**Physics**

A loudspeaker of mass 20.0kg is suspended a distance of h = 1.60m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 4.00m .
*September 30, 2013 by Anonymous*

**Physics **

A 1400 kg car rounds a curve of 57 m banked at an angle of 14 degree If the car is traveling at 98 km/h, how much friction force will be required? I cannot figure out how to solve this problem. Someone please help me?
*June 17, 2012 by Mike Joseph*

**physics**

racing on a flat track, a car going 32 m/s rounds a curve 56m in radius. what is the car's centripetal acceleration?
*December 1, 2010 by john*

**Math**

The The speed of a passenger train is 12 mph faster then the speed of a freight train. The passenger train travels 270 miles in the same time it takes the freight train to travel 210 miles. Find the speed of each train.
*February 14, 2008 by Debbie*

**Algebra**

The speed of a passenger train is 20 mph faster than the speed of a freight train. The passenger train travels 250 miles in the same time it takes the freight train to travel 150 miles. find the speed of each train.
*June 3, 2011 by Francessca*

**algebra**

The speed of a passenger train is 16 mph faster than the speed of a freight train. The passenger train travles 300 miles in the same time it takes the freight train to travel 220 miles. find the speed of each train
*June 22, 2012 by todd*

**algebra**

Train A leaves a station traveling at 80km/h. Two hours later, train B leaves the same direction at 90km/h. How long does it take train B to catch up to train A?
*November 3, 2013 by Kirsten*

**math**

the speed of train A is 14 miles slower than train B. train A travels 210 miles in the same time it takes train B to travel 280 miles. Whats the speed of each train?
*April 11, 2013 by pam*

**science **

A 1520 kg car rounds a 164m radius curved at a constant speed of 22.0 m/s. What is the centripetal acceleration of the car? What is the centripetal force acting on the car?
*November 24, 2013 by Tel *

**Algebra-help**

12. A train traveled at a constant speed for 6 hours. The train traveled 225 miles in those 6 hours. What was the speed, in miles per hour, of the train? answer: 37.5 Is that correct? Thank You
*February 1, 2013 by Brendon*

**Math**

Round the larger factor to the graetest place. 55*4 round 50 *4 993*6 rounds to 1,000*6 735*3 rounds to 700*3 1,914*3 rounds to 2,000*3 4,722*6 rounds to 5,000 495*3 rounds to 500*3 Please ,, My answers : true or false
*December 1, 2014 by Nn*

**Physics**

A massless pan hangs from a spring that is suspended from the ceiling. When empty, the pan is 50 cm below the ceiling. If a 105 g clay ball is placed gently on the pan, the pan hangs 60 cm below the ceiling. Suppose the clay ball is dropped from the ceiling onto an empty pan. ...
*October 23, 2014 by Anonymous*

**Physics**

A 1000 kg car rounds a curve of radius 70 m banked at an angle of 12°. What is the magnitude of the friction force required for the car to travel at 82 km/h?
*September 30, 2013 by Charlie*

**algebra**

a passenger train's speed is 60mi/h, and a freight train's speed is 40mi/h .The passenger train travels the same distance in 1.5 h less time than the freight train. how long does each train take to make the trip?
*October 21, 2010 by Anonymous*

**Physics**

A freight train traveling with a velocity of -4.0 m/s begins backing into a train yard. If the train's average acceleration is -0.27 m/s/s, what is the train's velocity after 17 seconds? Can someone tell me which formula to use for this?
*September 13, 2007 by Lindsay*

**Physics**

The velocity of a train reduced uniformly from 15 m/s to 7 m/s while traveling a distance of 90 m. a)compute the acceleration b) How much farther will the train travel before coming to rest, provided the acceleration remains constant?
*September 17, 2012 by Anonymous*

**Math**

Can you please check my work since my professor wont. Thanks 50% of 45 solution=90 Predict the height of a woman who's humerus is 40 cm long using H(x)=2.75x+71.48 solution= 181.48cm Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at...
*March 23, 2011 by Mio*

**physics**

A cyclist enters a curve of 30 m radius at a speed of 12 m s-1. He applies the brakes and decreases his speed at a constant rate of 0.5 m s-2. Calculate the cyclist’s centripetal (radial) [3 marks] and tangential [15 marks] accelerations when he is travelling at a speed of 10 ...
*February 28, 2012 by alex*

**Algebra I**

"A car is traveling at r speed. A plane is traveling at 5r speed. When will they both reach 200 miles?"
*May 23, 2011 by Beth*

Pages: <<Prev | 1 | 2 | **3** | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>