Monday

January 23, 2017
Number of results: 95,917

**physics**

A car is traveling at a constant speed along road ABCDE. (Curve BC where Bis beginning of curve and C is the end of the curve is in the shape of a "backward C." C is then the beginning of another curve and D is the end of the same curve in the shape of a normal C, like you are...

*February 12, 2012 by Nabil*

**Math**

Train A and Train B are traveling towards each other but are 2,100 miles apart. Train A is traveling at 50 mph and Train B is traveling at 35 mph. When will they collide?

*January 28, 2009 by Lor*

**Algebra**

I saw this posted but saw no help with it Trains A & B are traveling in the same direction. Train A is traveling at 100 mph and Train B is traveling at 110mph Train A passes a station at 1:15 pm. If Train B passes the same station at 1:45 at what time will Train B catch up ...

*April 30, 2009 by Brandy*

**algebra**

Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mph and B is traveling at 120 mph. Train A passes a station at 9:10 pm. If train B passes the same station at 9:25pm what time will train B catch up with train A?

*November 26, 2009 by Rose*

**algebra**

Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mph and B is traveling at 120 mph. Train A passes a station at 9:10 pm. If train B passes the same station at 9:25pm what time will train B catch up with train A?

*November 28, 2009 by Rose*

**math**

Trains A and B are traveling in the same direction on parallel tracks. Train a is traveling at 100 mph and train B is traveling 120 mph. Train a passes a station at 7:20 P.M. If train B passes the same station at 7:35 P., at what time will train B catch up to train A?

*October 27, 2010 by word problems*

**Physics**

In the Daytona 500 car race in Daytona, FL, a curve in the oval track has a radius of 316 m (near the top of the curve) and is banked at 31.0 O . a) What speed would be necessary to make this turn if there was no friction on the road? b) If the coefficient of static friction ...

*July 26, 2012 by Zac*

**math-word problem-please help**

Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 miles per hour and train B is traveling at 120 miles per hour. Train A passes a station at 5:20am. If train B passes the same station at 5:35 am, at what time will train B catch ...

*March 28, 2010 by KiKi*

**algebra**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mph and train B is traveling at 110 mph. Train A passes a station at 3:10 pm. If train B passes the same station at 3:40pm, at what time will train B catch train A? 4:30 pm I am ...

*January 7, 2009 by Samantha*

**Math**

Two trains are both traveling at a constant speed toward each other on neighboring tracks. The trains are 252 miles apart when they start traveling. They pass each other 4 1/2 hours later. One of the trains is traveling 25 3/4 miles per hour. What is the speed of the other train?

*March 17, 2016 by Anonymous*

**physics**

2. A freight train traveling with a velocity of 18.0 m/s to the south begins braking as it approaches the train yard. The train’s acceleration while braking is -0.33m/s2. What is the train’s speed after 23 seconds?

*December 13, 2011 by Anonymous*

**math-word problem**

Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 miles per hour and train B is traveling at 120 miles per hour. Train A passes a station at 5:20am. If train B passes the same station at 5:35 am, at what time will train B catch ...

*March 28, 2010 by KiKi*

**algebra**

the speed of train A is 8 mph slower than the speed of train B. Train A travels 220 miles in the same time it takes train B to travel 260 miles. Find the speed of both trains. Speed of train A = Speed of train B =

*November 12, 2012 by pam*

**Algebra**

Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 mile per hour and train B is traveling at 88 miles per hour. Train A passes a station at 9:20 P.M. If train B passes the same station at 9:50 P.M., at what time will train B catch ...

*March 22, 2009 by A.W.*

**Physics of Vehichle**

A 1400 kg car rounds a curve of 57 m banked at an angle of 14 degrees If the car is traveling at 98 km/h, will a friction force be required? If so, in what direction? May someone please walk me through this problem step by step? Thank you

*June 16, 2012 by Mike Joseph*

**physics**

Two pucks collide on an air hockey table. Puck A has a mass of 17.0 g and is initially traveling in the +x direction at 7.00 m/s. Puck B has a mass of 51.0 g and is initially at rest. After the pucks collide, puck A moves away at an angle of 52.0 deg above the +x axis, while ...

*March 24, 2014 by Tsion*

**Physics**

A car of mass = 1200 traveling at 60.0 enters a banked turn covered with ice. The road is banked at an angle , and there is no friction between the road and the car's tires.What is the radius of the turn if = 20.0 (assuming the car continues in uniform circular motion around ...

*April 6, 2011 by Brooke*

**PHYSICS**

A circular curve of highway with radius 200m is designed for traffic moving at 100km/h, and is banked so that cars can make the curve even without friction at that speed. What is the correct angle of banking for this curve? Show steps, please.

*April 19, 2010 by Joey*

**physics**

A train is moving parallel and adjacent to a highway with a constant speed of 25 m/s. Initially a car is 49 meters behind the train travelling in the same directionas the train at 37 m/s and accelerating at 4 m/s^2. What is the speed of the car just as it passes the train.

*September 18, 2012 by john*

**physics**

Radius of Curvature A bicyclist traveling at 8 m/s rides around an unbanked curve. The coefficient of friction (is this static or kinetic friction?) between the tires and the road is 0.36. What is the radius of the shortest turn that the bicyclist can safely make? Please, ...

*November 9, 2013 by Amanda*

**physics**

A train is traveling along a straight, horizontal track at a constant speed of 20 mph (i.e.,a non-relativistic speed). An observer on the train places paint cans at the front and back of one of the cars. She then detonates the cans. Due to a malfunction, the can at the front ...

*April 6, 2014 by anonymous*

**physics**

An automobile of mass 1.46 E3 kg rounds a curve of radius 25.0 m with a velocity of 15.0 m/s. The centripetal force exerted on the automobile while rounding the curve is?

*December 17, 2012 by Anonymous*

**physics**

Driving down Highway 401 in Ontario, it had rained and stopped raining by the time I came to the freezing rain on the highway. I knew there was a problem when the cars in front of me started to fly off the highway at the curve in the road. Assume the curve in the road is ...

*March 22, 2016 by Tom*

**algebra**

I need help with a word problem. 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 a station at 6:10 A.M. If train B passes the station at 6:22 A.M., ...

*March 18, 2008 by Casey*

**algebra**

Trains A & B are traveling in the same direction on a parallel tracks. Train A is traveling at 60 mph and train B is traveling at 80 mph. Train A passes a station at 5:15 PM. If train B passes the same station at 5:30 PM, at what time will train B catch up to train A? When ...

*January 28, 2010 by John*

**math**

Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 mph and Train B is traveling 64 mph. Train A passes a station at 7:15 AM. If Train B passes the same station at 7:45 AM, at what time will Train B catch up to Train A?

*August 28, 2009 by j*

**ALGEBRA**

I need help with two problems to finish my assignment. #1 The length of a rectangle is fixed at 29cm. What widths will make the perimeter greater than 86 cm? If I could get the equation for this I would be able to figure it. I saw this one posted and no response yet. #2 Trains...

*May 3, 2009 by mona*

**physics**

A large chandelier weighing 1500lbs. is suspended from the roof of a theater lobby. The steel pipe from which it hangs is 20ft long. Determine the size of the pipe necessary to carry chandelier safely. Use A36 steel. What is the resulting elongation of the pipe? I calculated ...

*April 17, 2010 by stacey graham*

**physics**

A large chandelier weighing 1500lbs. is suspended from the roof of a theater lobby. The steel pipe from which it hangs is 20ft long. Determine the size of the pipe necessary to carry chandelier safely. Use A36 steel. What is the resulting elongation of the pipe? I calculated ...

*April 17, 2010 by stacey graham*

**Physics**

Problem 6.08 A highway curve with radius 1000 ft is to be banked so that a car traveling 52.0 mph will not skid sideways even in the absence of friction. Part A At what angle should the curve be banked? θ = ∘

*June 22, 2016 by Spencer Egolf*

**Algebra**

Train A is traveling at 100 mph and train B is traveling at 104 mph. Train A passes a station at 12:15 p.m. If train B passes the same station at 12:45 p.m., at what time will train B catch up to train A? HELP please I am drawing a complete balank at figuring the how to solve ...

*May 6, 2011 by Math*

**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**

A train is traveling south at 23.5 m/s when the brakes are applied. It slows down with a constant rate to a speed of 5.01 m/s in a time of 8.73 s. How far does the train travel during the 8.73 s? I have already found -Acceleration during braking: -2.12m/s

*September 16, 2015 by Ethan*

**phys**

A toy airplane of mass 0.159 kg is tied to the ceiling with a string. The airplane moves in a horizontal circle of radius 2.97 m, with a constant speed of 1.51 m/s. What is the angle the string makeswith the vertical?

*December 7, 2009 by stacy*

**Algebra**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling 40 miles per hour. Train B is traveling 48 miles an hour. Train A passes a station at 10:25 pm. If train B passes the same station at 10:55 pm, at what time will train B catch up with ...

*July 27, 2008 by Jerry*

**Physics**

A train on a mountain railway is carrying 200 people of average mass 70kg up a slope at an angle of 30° to the horizontal and at a speed of 6.0 m s–1. The train itself has a mass of 80 000 kg. The percentage of the power from the engine which is used to raise the passengers...

*June 8, 2014 by Me*

**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*

**Physics**

Racing on a flat track, a car going 32 m/s rounds a curve 56 m in radius. What is the force of friction needed for the car to round the curve without slipping?

*November 4, 2012 by Christy*

**physics**

A 3670 lb car going around an unbanked curve at a constant speed of 25 mph begins to slide (ìs=0.55 and ìk=0.45). What is the radius of the curve?

*November 23, 2010 by sandhu*

**algebra**

Train A and B are traveling in the same direction on a parallel track. Train A is traveling at 100 miles per hour and train B is traveling at 120 miles per hour. Train A passes a station at 2:20 pm. If train B passes the same station at 2:35pm, at what time will train B catch ...

*May 6, 2009 by snuggles*

**physics**

A curve of radius 60m is banked so that a car traveling with uniform speed 70km/hr can round the curve without relying on friction to keep it from slipping to its left or right. The acceleration of gravity is 9.8m/s^2. What the the Angle of the curve? im using a=v^2/r, but ...

*September 17, 2006 by puff puff*

**science**

a train is moving along a horizontal track. A pendulum suspended from the roof makes an angle 4 degree with the vertical. obtain the acceleration of train?

*July 5, 2015 by aman*

**physics**

A 1 500-kg car rounds an unbanked curve with a radius of 52 m at a speed of 12 m/s. What minimum coefficient of friction must exist between the road and tires to prevent the car from slipping? (g = 9.8 m/s2)

*February 9, 2012 by jay*

**Math 116**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40mph and Train B at 50mph. Train A passes a station at 9:20 am. If train B passes the same station at 9:32 am, at what time will train B catch up to train A?

*November 21, 2009 by TracyAnn*

**please help! Examples in book are different!**

train A and b are traveling in the same direction on parallel tracks. Train A is traveling at 40 mph, and B is at 60 mph. Train A passes the station at 12:25 am, and train b passes the station at 12:40 am, what time will train b catch up to train A?

*March 28, 2010 by bob*

**Physics**

a track is mounted on a large wheel that is free to turn with negligible friction about a vertical axis. a toy train of mass m is placed on the track and, with the system initially at rest, the electrical power is turned on. the train reaches a steady speed v with respect to ...

*February 13, 2008 by Sarah*

**physics**

An automobile traveling 95 overtakes a 1.10--long train traveling in the same direction on a track parallel to the road. Q1: If the train's speed is 75 , how long does it take the car to pass it Q2:How far will the car have traveled in this time? Q3:What is the time if the car...

*April 8, 2012 by kelly*

**physics**

An automobile traveling 95 overtakes a 1.10--long train traveling in the same direction on a track parallel to the road. Q1: If the train's speed is 75 , how long does it take the car to pass it Q2:How far will the car have traveled in this time? Q3:What is the time if the car...

*April 8, 2012 by kelly*

**physics**

An automobile traveling 95 overtakes a 1.10--long train traveling in the same direction on a track parallel to the road. Q1: If the train's speed is 75 , how long does it take the car to pass it Q2:How far will the car have traveled in this time? Q3:What is the time if the car...

*April 8, 2012 by kelly*

**physics**

You are on a train traveling east at speed of 17.0 m/s with respect to the ground. 1) If you walk east toward the front of the train, with a speed of 1.1 m/s with respect to the train, what is your velocity with respect to the ground? 2) If you walk west toward the back of the...

*September 10, 2012 by ali*

**Algebra**

I am so lost can someone please help me 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 100 miles per hour. Train A passes a station at 11:15am. If train B passes the same station at ...

*July 9, 2008 by Janice*

**algebra**

trains a&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 a station at 3:15a.m. if train b passes a station at 3:45a.m., what time will train b catch up to train a...

*August 30, 2009 by anonymous*

**phsyics**

A 8.0×10−2-{\rm kg} toy airplane is tied to the ceiling with a string. When the airplane's motor is started, it moves with a constant speed of 1.30 m/s in a horizontal circle of radius 0.41 m, Find the angle the string makes with the vertical.

*December 16, 2010 by Lisa*

**algebra**

Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hr and train B is traveling at 88 miles per hour. Train A passes a station at 8:10 AM. If train B passes the same station at 8:40 AM, what time will train B catch up to ...

*February 3, 2011 by cookie*

**math**

a. the maximum velocity at which a vehicle can go around a level curve is given by the formula v=√µrg, where µ is the coefficient of friction, r is the radius of the curve, and g is the acceleration due to gravity. explain how radical expression can be used to find the...

*September 19, 2016 by John Dosley*

**Algebra**

I'm lost. Please help me solve. 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 80 miles per hour. Train A passes a station at 3:25pm. If train B passes the same station at 3:40p.m., ...

*April 28, 2008 by Shawna*

**college**

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*

**college**

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*

**calculus**

Highway engineers often use quadratic functions to model safe stopping distances for cars like 1/2x quantity squared + 11/5x is used to model the safe stopping distance for car traveling at x miles per hour on dry, level pavement. If a driver can see only 200 feet ahead on a ...

*September 9, 2014 by ANON :)*

**physics 1401!!!**

A 2000-kg car rounds an unbanked curve with a radius of 45 m at a speed of 15 m/s. What minimum coefficient of friction must exist between the road and tires to prevent the car from slipping? (g = 9.8 m/s2)

*July 6, 2015 by help me plzz (:*

**Physics**

When a high-speed passenger train traveling at 124 km/h rounds a bend, the engineer is shocked to see that a locomotive has improperly entered onto the track from a siding and is a distance D=666 m ahead. The locomotive is moving at 21 km/. The engineer of the high-speed train...

*June 14, 2011 by Chelsea*

**physics**

Consider a level flight turn of a propeller-driven airplane in which the airplane makes a complete circular turn in 1.6 min. If the plane's speed is 200 m/s, what is the radius of the circle?

*December 2, 2010 by kaitlyn*

**9th grade**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mile per hour and train B is traveling at 125 mile per hour. Train A passes a station at 3:15pm. If train B passes the same station at 3:27 pm at what time will train B catch up ...

*March 10, 2010 by Kimmie*

**Algebra**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 miles per hour and train B is traveling at 120 miles per hour. Train A passes a station at 5:10pm. If train B passes the same station at 5:25pm, at what time will train B catch ...

*February 12, 2011 by Kimi*

**PHYSICS**

A 10 g bullet is fired horizontally into a 1 kg block of wood hanging from a 1 m long string attached to the ceiling, getting stuck in the block. Due to the impact, the block then swings on the string to a maximum angle of 60 degrees with respect to the vertical. How fast was ...

*March 21, 2013 by Anonymous*

**College Science**

A chandelier is suspended by two identical, vertical chains side by side. The chandelier's mass is m = 5.3 kg. A. If the tension in one chain is represented by T, write an expression for this tension in terms of m and g, the gravitational acceleration on the Earth's surface. ...

*October 9, 2014 by Sam*

**word problem**

train A and b are traveling in the same direction on parallel tracks. Train A is traveling at 40 mph, and B is at 60 mph. Train A passes the station at 12:25 am, and train b passes the station at 12:40 am, what time will train b catch up to train A?

*March 28, 2010 by bob*

**g.k.**

A. A car is traveling at a speed of 55 mi/hr along a banked highway having a radius of curvature of 500 ft. At what angle should the road be banked in order that a zero friction force is needed for the car to go around this curve?

*April 18, 2012 by anirudh dhiman*

**Algerbra**

Can anyone help me on these two problems also. I am getting so confused and tired. The length of a rectangle is fixed at 27cm. What lengths will make the perimeter greater than 100cm? also this problem Trians A and B are traveling in the same direction on parellel tracks. ...

*January 25, 2009 by Kim*

**physics**

consider a massless cord attached at both ends to hooks in a ceiling. A 20 kg mass is then suspended from the first cord by a second cors. The angles made by the cord with the ceiling are 40 degrees (left angle) and 25 degrees (right angle). Find the tension in each cord. I ...

*November 20, 2006 by randy*

**Physics**

A ball (m = 250g) on the end of string swings in 1.2 m radius that tolerates 20 N. At what speed does the string breaks if a) the rings swings horizontally ? b) the rings swing vertically? I think I got a) right: T=mv2/r ---> v=(sqr)Tr/m v=(sqr) 20x1.2/0.25= 9.8 m/s Given ...

*May 18, 2014 by Physics: Circular Motion?*

**Physics**

A bicyclist traveling at 7 m/s rides around an unbanked curve. The coefficient of friction between the tires and the road is 0.38. What is the radius of the shortest turn that the bicyclist can safely make?

*March 5, 2012 by Sarah*

**college**

Trains A and B are traveling in the same direction on perallel tracks. Train A is traveling at 100 miles per hour and train B is traveling at 120 miles per hour. Train A passes a station at 2:10 A.M. if train B passes the same station at 2:22 A.M, at what time will train B ...

*September 2, 2010 by Anonymous*

**algebra**

trains a and b are traveling in the same direction on parallel tracks. train a is traveling at 100 miles per hour and train b is traveling at 110 miles per hour. train a passes a station at 10:10 p.m. if train b passes the same station at 10:40 pm., at what time will train b ...

*February 19, 2011 by Anonymous*

**algebra**

trains a and b are traveling in the same direction on parallel tracks. train a is traveling at 100 miles per hour and train b is traveling at 110 miles per hour. train a passes a station at 10:10 p.m. if train b passes the same station at 10:40 pm., at what time will train b ...

*February 19, 2011 by Anonymous*

**Math**

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 80 miles per hour. Train A passes a station at 8:20 p.m. If train B passes the same station at 8:32 p.m., at what time will train B ...

*August 2, 2008 by Anonymous*

**math - trig**

The airport meteorologists keep an eye on the weather to ensure the safety of the flights. One thing they watch is the cloud ceiling. The cloud ceiling is the lowest altitude at which solid cloud is visible. If the cloud ceiling is too low the planes are not allowed to take ...

*December 12, 2013 by Shelley Nicole*

**Physics Help Please!!!!**

1) A high-speed maglev train is traveling with a changing velocity. what can be said about the forces acting on the train? 2) An automated vehicle in a warehouse is traveling at a constant velocity. what can be said about the forces acting on the vehicle?

*October 1, 2014 by Tim*

**science**

A 5.3-g bullet is fired horizontally into a 3.6-kg block of wood suspended by a rope from the ceiling. The block swings in an arc, rising 5.4 mm above its lowest position. The velocity of the bullet was:

*August 16, 2015 by haddad*

**algebra1**

the speed of train A is 8mph slower than the speed of train B. Train A travels 220 in the same time it takes train B to travel 260 miles. Find the speed for each train.

*October 18, 2009 by mark*

**Physics**

Suppose the coefficient of static friction between the road and the tires on a car is 0.60 and the car has no negative lift. What speed will put the car on the verge of sliding as it rounds a level curve of 29.3 m radius?

*February 18, 2010 by Andrew*

**science (check answers)**

4.how does the kinectic energy of a 10,000-kg train traveling at a speed of 10 m/s compare with that of a 2,600-kg compact car traveling twice as fast? A.the train has less kinectic energy than the car. B.the train has more kinectic energy than the car.(I PICK THIS) C.the ...

*January 29, 2014 by annabelle*

**MATH**

Amtrail trains provide efficient, nonstop transportation between Los Angeles and San Diego. Train A leaves Los Angeles headed toward San Diego at the same time that Train B leaves San Diego headed for Los Angeles, traveling on parallel tracks. Train A travels at a constant ...

*January 12, 2011 by Catherine*

**Physics**

a 100 N chandelier hangs from the ceiling on 8 chains. What is the tension force on each chain?

*January 12, 2016 by khushi*

**Physics**

A car can be driven around a 120 m radius curve at constant speed without sliding if the maximum centripetal acceleration is 0.130g. (a) What is the maximum speed that the car can travel around the curve without sliding? (b) If the car was on a circular race track with this ...

*September 21, 2012 by josephz*

**physics**

A woman is riding a Jet Ski at a speed of 27.9 m/s and notices a seawall straight ahead. The farthest she can lean the craft in order to make a turn is 21.0°. This situation is like that of a car on a curve that is banked at an angle of 21.0°. If she tries to make the turn ...

*February 16, 2012 by Blake*

**physics**

A woman is riding a Jet Ski at a speed of 20 m/s and notices a seawall straight ahead. The farthest she can lean the craft in order to make a turn is 20°. This situation is like that of a car on a curve that is banked at an angle of 20°. If she tries to make the turn without...

*February 23, 2014 by Anonymous*

**physics**

A woman is riding a Jet Ski at a speed of 20 m/s and notices a seawall straight ahead. The farthest she can lean the craft in order to make a turn is 20°. This situation is like that of a car on a curve that is banked at an angle of 20°. If she tries to make the turn without...

*February 25, 2014 by Anonymous*

**Math 116**

Trains A and B are traveling in the same direction on paralled tracks. Train A is traveling at 80 miles per hour and train B is traveling a 88 miles per hour. Train A passes a station at 9:20 P.M. If train B passes the same station at 9:35 P.M., at what time will train B catch...

*August 19, 2008 by Sam*

**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 80 miles per hour. Train A passes a station at 5:15 A.M. IF train B passes the same station at 5:27A.M., at what time will train B catch...

*December 20, 2009 by Rich*

**MATH**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40 miles per hour and train B is traveling at 60 miles per hour. Train A passes a station at 8:20pm. If train B passes at the same station at 8:35 p.m at what time will train B catch...

*August 21, 2010 by Anonymous*

**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 80 miles per hour. train a passes a station at 9:10 am. if train b passes the same station at 9:25am, at what time will train b catch up...

*October 12, 2010 by William Tolson*

**physics**

Two banked curves have the same radius. Curve A is banked at an angle of 11°, and curve B is banked at an angle of 17°. A car can travel around curve A without relying on friction at a speed of 18.5 m/s. At what speed can this car travel around curve B without relying on ...

*February 16, 2012 by Blake*

**Physics**

Two banked curves have the same radius. Curve A is banked at an angle of 11°, and curve B is banked at an angle of 16°. A car can travel around curve A without relying on friction at a speed of 18.5 m/s. At what speed can this car travel around curve B without relying on ...

*November 7, 2012 by Don*

**Physics**

Two banked curves have the same radius. Curve A is banked at an angle of 11°, and curve B is banked at an angle of 16°. A car can travel around curve A without relying on friction at a speed of 18.5 m/s. At what speed can this car travel around curve B without relying on ...

*November 7, 2012 by Don*

**Science**

An unbanked curve has a radius of 80.0 m. What is the naximum speed at which a car can make the turn if the coefficient of static friction is 0.8?

*July 11, 2015 by Charlotte*

**Calculus**

1) Find correct to six decimal places root of the equation cos(x)= x for xE[0, pi/2] using Newton's Method. 2) A triangle has two constant lengths of 10 cm and 15 cm. The angle between two constant sides increases at a rate of 9 deg/min. Find the rate of increase of the third ...

*May 4, 2013 by G*

**science(1answer)**

4.how does the kinectic energy of a 10,000-kg train traveling at a speed of 10 m/s compare with that of a 2,600-kg compact car traveling twice as fast? A.the train has less kinectic energy than the car. B.the train has more kinectic energy than the car.(I PICK THIS) C.the ...

*January 29, 2014 by annabelle*

**science**

construct a heating curve for a substance that is heated to 150 deg centigrade. The substance is originally solid at 35 deg c, melts at 75 deg c and boils at 126 dec c

*February 17, 2016 by vidya*

**physics**

A student proposes to measure the gravitational constant G by suspending two spherical objects from the ceiling of a tall cathedral and measuring the deflection of the cables from the vertical. Draw a free-body diagram of one of the objects. (Do this on paper. Your instructor ...

*April 8, 2010 by phys*