Wednesday

July 23, 2014

July 23, 2014

Number of results: 23,607

**Physics**

Two objects collide and bounce off one another. After the collision, object m1 = 1.67 kg moves off at 14.5 m/s at a heading of 327 degrees. Object m2 = 1.66 kg moves off at 8.9 m/s at a heading of 211 degrees. Initially, m2 was traveling at 11.8 m/s at a heading of 318 degrees...
*January 16, 2011 by Joan*

**Physics**

A 1030 kg car is pulling a 360 kg trailer. Together, the car and trailer have an acceleration of 2.07 m/s2 directly forward. How do you find net force on the car and trailer?
*October 23, 2010 by James*

**Langusage Arts**

My 4th grades needs HELP with (Show the possession of the subject.)the car of the principals The principal's car principal's shows that the car belongs to the principal.
*January 30, 2007 by J.R.G.*

**Fast Physics Help**

I have an image but I can't post it because it is a website. block 1 of mass m1 slides along an x-axis on a frictionless floor with speed of v1i=4.00 m/s. Then it undergoes a one dimentional elastic collision with stationary block 2 of mass m2=.500m1. Next, block 2 undergoes a...
*December 8, 2006 by Krystal*

**business law**

im kind of confused about the concept on agency Tania had apparent authority to buy a car for Sharon, provided the price was less than $10,000. Tania has now entered into an agreement to buy a car, on Sharon's behalf, from Douglas for $15,000. the answer on the quiz was Sharon...
*December 10, 2008 by kk*

**business law**

im kind of confused about the concept on agency Tania had apparent authority to buy a car for Sharon, provided the price was less than $10,000. Tania has now entered into an agreement to buy a car, on Sharon's behalf, from Douglas for $15,000. the answer on the quiz was Sharon...
*December 10, 2008 by kk*

**physics**

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to 2.6 times her weight as she goes through the dip. If r = 20.0 m, how fast is the roller coaster ...
*November 23, 2010 by Colin*

**science**

A block of mass 0.5 kg is pushed a distance x against a spring with k=450 N/m. When released the block slides along a frictionless horizontal surface to a point B, the bottom of a vertical circular track of radius R=1 meter. The track is not smooth. When the block reaches ...
*June 18, 2011 by claire*

**physics**

A 5.0 ball is initially sitting at rest on top of a 41 m high hill. The ball is pushed with a force of 25 N for 3.0 s toward the edge of a hill. Upon reaching the edge, the ball is allowed to roll down the hill where it reaches the flat ground. To the nearest mile per hour, ...
*May 30, 2013 by maddy*

**physics**

A car of mass m = 1635 kg is pushed off a cliff of height h = 23 m. If the car lands a distance of 9 m from the base of the cliff, what was the kinetic energy of the car the instant after it left the cliff?
*September 28, 2012 by Dani*

**Physics**

The velocity of a 629-kg auto is changed from 10.0 m/s to 44.0 m/s in 70.0 s by an external, constant force. (a) What is the resulting change in momentum of the car? (b) What is the magnitude of the force?
*December 2, 2008 by Anonymous*

**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*

**physics**

I tried doing this problem but couldnt get the right answer. I dont get how the answer is 2.19cm. Is the distance referring to the vertical or horizontal distance Four people, each with a mass of 73.5 kg, are in a car with a mass of 1190 kg. An earthquake strikes. The driver ...
*October 4, 2010 by flame*

**physics help!**

The tires of a car make 63 revolutions as the car reduces its speed uniformly from 94.0 km/h to 58.0 km/h. The tires have a diameter of 0.88 m. What was the angular acceleration of each tire? And If the car continues to decelerate at this rate, how much more time is required ...
*March 25, 2010 by Anonymous*

**physics**

The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 4.5 m/s, what is the largest value that the radius r can have if the car is to remain in contact with the circular track at all times?
*October 8, 2010 by Jordan*

**physics**

The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 4.6 m/s, what is the largest value that the radius r can have if the car is to remain in contact with the circular track at all times
*March 9, 2011 by Amanda*

**Physics**

The brakes of a certain 2400 lb car can exert a maximum force of 750 lbs. What is the minimum time needed to slow the car down from 60 ft? How far does the car travel in this time? Please indicate the formula used.
*February 2, 2012 by Hale*

**Uni Physics**

The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of v = 4.7 m s-1, what is the largest value that the radius r can have if the car is to remain in contact with the track at all times?
*October 2, 2012 by David Gia*

**physics**

A block of ice at 0°C whose mass initially is m = 12.5 kg slides along a horizontal surface, starting at a speed vo = 4.10 m/s and finally coming to rest after traveling a distance d = 10.07 m. Compute the mass of ice melted as a result of the friction between the block and ...
*December 8, 2009 by AK*

**college physics**

You shoot a 57 gram dart vertically upwards from a catapult with a spring constant of 379 N/m. The catapult is initially stretched from the equilibrium point by 30 cm. What is the height above the starting point reached by the dart? Ignore air resistance and give your answer ...
*June 7, 2014 by wes*

**algebra **

Trains A and B are traveling in the same direction on parrallel tracks. Train A is traveling at 60 mph, and train B is traveling at 80 mph. Train A passes a station at 11:15 a.m. if train B passes the same station at 11:30 a.m. at what time will train B catch up to train A? ...
*November 11, 2009 by Mandy*

**physics**

A 109 kg fullback runs at the line of scrimmage. (a) Find the constant force that must be exerted on him to bring him to rest in a distance of 1.1 m in a time interval of 0.22 s. (b) How fast was he running initially? someone answered this earlier but i do not understand how ...
*February 3, 2011 by Anonymous*

**Physics forces**

i know this might seem kind of long. but if you could please help me, i'd greatly appreciate it. a. suppose you have a tug of war with a friend who is the same size and weight as you are. You both pull as hard as you can, but neither of you seems to be winning. You move a ...
*October 25, 2008 by Tony*

**Physic**

Just an instant before reaching the very bottom of a semicircular section of a roller coaster ride, the automatic emergency brake inadvertently goes on. Assume the car has a total mass of 850 kg, the radius of that section of the track is 53.0 m, and the car entered the bottom...
*May 8, 2011 by Jason*

**physics**

A toy car runs off the edge of a table that is 1.150 m high. The car lands 0.380 m from the base of the table. It takes 0.48 s for it to fall.How fast was the car going on the table? ______m/s
*October 5, 2013 by Anonymous*

**Problem solving **

A rental car agency charges $15 per day plus $.11 per mile to rent a certain car. Another agency charges $18 per day plus 8 cents per mile to rent the same car. If they rent the car for one day how many miles will they have to be driven for the cost of a car from the first ...
*February 17, 2014 by Taylor*

**Problem solving **

A rental car agency charges $15 per day plus $.11 per mile to rent a certain car. Another agency charges $18 per day plus 8 cents per mile to rent the same car. If they rent the car for one day how many miles will they have to be driven for the cost of a car from the first ...
*February 17, 2014 by Taylor*

**Physics**

A block of mass 17.9 kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 2.01 m/s2. What is the tension in the cable? What is the magnitude of the net force acting on the mass? What is the speed of the...
*February 13, 2013 by Jessica*

**English**

1. My father goes to work by car. 2. My father goes to work by his car. 3. My father goes to work in his car. (Which one is grammatical?) English - Jen, Tuesday, May 18, 2010 at 11:11pm I would say "my father drives his car to work". 1 is probably the most acceptable of those...
*May 19, 2010 by rfvv*

**Physics**

A spring with constant speed of 3.5x10^4 N/m is initially @ its equilibrium length. (a)How much work must u do to stretch the spring 0.050 m? (b) How much work must you do to crompress it 0.050m?
*April 10, 2008 by Clarita*

**Physics**

On vacation, your 1300 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 2.02 m/s2. (a) What is the net force exerted by the car on the trailer? (b) What force does the trailer exert on the car? (c) What is the net force acting on the car? I've ...
*October 11, 2010 by tls*

**Physics**

A car and a bus are moving down a hill, the bus is 3X heavier than the car and the speed of the car is 3X faster than the bus. Compare their momentum and K.E.
*December 17, 2012 by Katie*

**PHYsics......**

A race car is on a straight track. The race car accelerates from rest, covering 100 m in 5 seconds. What is the acceleration of the race car in m/s^2?
*March 25, 2013 by i need help from anyone!*

**physics**

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to six times her weight as she goes through the dip. If r = 20.0 m, how fast is the roller coaster ...
*October 23, 2010 by Bella*

**Physics**

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to six times her weight as she goes through the dip. If r = 20.0 m, how fast is the roller coaster ...
*October 24, 2010 by madeline*

**college physics **

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to twice her weight as she goes through the dip. If r = 19.0 m, how fast is the roller coaster ...
*February 12, 2012 by Anonymous*

**Physics**

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to six times her weight as she goes through the dip. If r = 22.0 m, how fast is the roller coaster ...
*October 11, 2013 by Donna*

**physics**

The (nonconservative) force propelling a 1.50 103-kg car up a mountain road does 5.10 106 J of work on the car. The car starts from rest at sea level and has a speed of 31.5 m/s at an altitude of 1.90 102 m above sea level. Obtain the work done on the car by the combined ...
*March 14, 2012 by Natasha*

**Physics**

You are conducting an experiment inside a train car that may move horizontally along rail tracks. A load is hung from the ceiling on a string. The load is not swinging, and the string is observed to make a constant angle of 45 degrees with the horizontal. No other forces are ...
*October 23, 2009 by Anonymous*

**Physics**

You are conducting an experiment inside a train car that may move horizontally along rail tracks. A load is hung from the ceiling on a string. The load is not swinging, and the string is observed to make a constant angle of 45 degrees with the horizontal. No other forces are ...
*October 23, 2009 by Anonymous*

**Chemistry**

What are the equations for the following? Positron emission from silicon-26 and Sodium-22 undergoes electron capture I really don't get it Thank you
*May 20, 2010 by Aubrey*

**Chemistry**

calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n=7 to n=1. Is it just 6? or how do I do this?
*September 27, 2010 by Katie*

**chemistry**

Calculate the theoretical yield of CO2 when 4.16g of acetylene,C2H2,undergoes complete combustion?
*December 7, 2010 by CHAZ*

**physics**

A skater is gliding along the ice at 2.2 , when she undergoes an acceleration of magnitude 1.2 for 3.0 . At the end of that time she is moving at 5.8
*April 5, 2011 by Anton*

**physics**

Ball 1, with a mass of 100g and traveling at 12 m/s , collides head on with ball 2, which has a mass of 340g and is initially at rest. What are the final velocities of each ball if the collision is perfectly elastic? What are the final velocities of each ball if the collision ...
*October 18, 2009 by Dan*

**Physics**

A roller-coaster car has a mass of 1170 kg when fully loaded with passengers. As the car passes over the top of a circular hill of radius 16 m, its speed is not changing. (a) What are the magnitude and direction of the force of the track on the car at the top of the hill if ...
*October 28, 2009 by joann*

**physics**

a object is traveling horizontaly when it reaches a 50meter drop how fast must the object be traveling to land 90 meters away from the edge of the drop
*September 9, 2010 by sc*

**Physics**

A child traveling 5m/s on a sled passes her younger brother.if her average acceleration on the sledding hill is 2m/s,how fast is she traveling when she passes her older brother 4s later.
*September 5, 2011 by rally*

**Physics**

A child is traveling 7 m/s on a sled when she passes her younger brother. Here avg acceleration is 2m/s2. How fast is she traveling shen she passes her older brother 6s later?
*September 12, 2012 by Anonymous*

**physics**

a ford is traveling with a speed of 15 m/s and is 200 meters ahead of a Chevy traveling in the same directin at 20 m/s. How far will the Chevy travel before catching up to the Ford?
*September 25, 2012 by Beth*

**physics**

A 2000 kg is released from a height 20m, and hits a 700kg car at the bottom of the swing. The car is sent horizontally 30, before coming to a stop, and the ball is going 12m/s immediately after they hit. What force of friction is acting between the car and the ground?
*February 18, 2014 by Tristan*

**Physics Problems**

I have a few questions that I dont understand and are having troulbe with, could you please help me out? Thanxs! What is the acceleration of a car that maintains a constant velocity of 100 km/hr for 10 seconds? (For this one dont I have to get the same units, this is how I ...
*September 4, 2007 by Soly*

**Physics**

A hydraulic lift is used to jack a 780 kg car 15 cm off the floor. The diameter of the output piston is 15 cm, and the input force is 160 N. a)What is the area of the input piston (in m^2)? b)What is the work done in lifting the car 15 cm? c)If the input piston moves 13 cm in ...
*November 10, 2012 by Melissa *

**Physics**

A 1000 kg car pushes a 2000 kg truck that has a dead battery. When the drive steps on the accelerator, the drive wheels of the car push against the ground with a force of 4500 N. a) What is the magnitude of the force of the car on the truck? b) what is the magnitude of the ...
*June 12, 2010 by Sarah*

**physics**

Please Help. I am not sure how to set up or do this problem. Thanks A car is traveling along a road, and its engine is turning over with an angular velocity of +199 rad/s. The driver steps on the accelerator, and in a time of 14.2 s the angular velocity increases to +263 rad/s...
*October 28, 2010 by bethany*

**College Physics**

The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 4.5 m/s, what is the largest value that the radius r can have if the car is to remain in contact with the circular track at all times?
*October 6, 2010 by Dawn*

**Math**

A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a positive constant) is the decay constant. (a) ...
*April 5, 2014 by Vanessa*

**Math**

A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a positive constant) is the decay constant. (a) ...
*April 6, 2014 by Vanessa*

**Physics- impuse and force**

A car is moving to the right with a speed of 20 m/s. A large SUV is moving to the left at a speed of 20 m/s. The SUV has a mass three times that of the small car. They have an totally inelastic head-on collision in an intersection. There are two passengers in each vehicle, one...
*July 5, 2011 by Casey*

**PHYSICS**

A car is traveling along a road, and its engine is turning over with an angular velocity of +199 rad/s. The driver steps on the accelerator, and in a time of 14.2 s the angular velocity increases to +263 rad/s. (a) What would have been the angular displacement of the engine if...
*October 29, 2010 by JOHN*

**Physics**

A car goes through a curve with a constant velocity of 60mph and experiances a centripital acceleration of 77.4 ft/secsquared. Find the radius of the curve.
*December 20, 2010 by Elise*

**physics**

What should be the spring constant of a spring designed to bring a 1300 car to rest from a speed of 95 so that the occupants undergo a maximum acceleration of 6.0 ?
*March 14, 2011 by cool*

**Physics**

A car accelerates from 0 to 60 miles per hour in 6.5 seconds. Determine the distance traveled in this time and the acceleration. Assume constant acceleration.
*September 22, 2011 by Jen*

**Science**

A car starts from rest and moves with constant acceleration during the 5th second of its motion,it covers a distance of 36 meters. what is the acceleration
*August 31, 2012 by Mariam*

**Physics**

How much work is done by the centripetal force (in this case, the friction between the tires and the road) on a 1200 kg car moving on a circular track of radius 50 meters at a constant speed of 31.4 m/s?
*December 6, 2012 by Alainna*

**Algebra 2**

Evan spent the summer earning money so he could buy the classics car of his dreams. He purchased the car for $2,295 from Fast Deal Freddie, the local used car salesman. Freddie told Evan that the car would increase by half its value after five years. Evan knows that this model...
*January 25, 2012 by Anonymous*

**math**

a new car depreciated by 20% in its first year. each succeeding year it depreciated by 10% assume the car is still in good working condition after 10 years. if the car costs $25,000 calculate the value of the car after 10 years. express your answer to the nearest $10. please ...
*December 23, 2010 by rio*

**Psychics**

A freight car is moving freely along a railroad track at 7.0 m/s and collides with a tanker car that is at rest. After the collision, the two cars stick together and continue to move down the track. What is the magnitude of the final velocity of the cars if the freight car has...
*March 17, 2011 by Kendra *

**Physics**

a frictionless roller coaster car of mass m = 719 kg tops the first hill with speed v0 = 15.2 m/s at height h = 48.9 m. How much work does the gravitational force do on the car from that point to (a) point A, (b) point B, and (c) point C? If the gravitational potential energy ...
*March 7, 2012 by Brando*

**Chemistry**

25.0 mL of ethanol (density = 0.789 g/mL) initially at 7.0 degrees celsius is mixed with 35.0 mL of water (density = 1.0 g/mL) initially at 25.3 degrees celsius in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
*February 9, 2012 by Elle*

**Physics **

A person is initially 8 m from a point sound source which emits energy uniformly in all direction at a constant rate. If the intensity of the source is to be halved but the sound is to be as loud as before, what distance should the person be from the source? Ans: 4 square root...
*June 5, 2014 by Ariana*

**Physics**

In a television tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.0 105 N/C during the first 5.0 cm of the tube's length; then they move at essentially constant velocity another 45 cm before hitting the screen. (a) Find the speed of ...
*January 20, 2011 by Anonymous*

**physics**

A cylinder of mass M=58 kg, radius R=1.3 m and moment of inertia I=(1/2)MR2 is initially rotating around its central axis with an angular velocity ωi= 1.8 rad/s. A tangential force F of constant magnitude applied to the edge of the cylinder during 5.9 s brings it to rest...
*March 25, 2012 by katie*

**Math **

A rental car agency charges $15 per day plus $.11 per mile to rent a certain car. Another agency charges $18 per day plus 8 cents per mile to rent the same car. If they rent the car for one day how many miles will they have to be driven for the cost of a car from the first ...
*February 17, 2014 by Taylor*

**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**

A car starts from rest and accelerates unifomly at 3m/s^2. A second car starts from rest 6 seconds later at the same point and accelerates uniformly at 5m/s^2. How long does it take the second car to over take the first car?
*October 20, 2011 by Joe*

**English**

1. He is at the back of the car. 2. He is at back of the car. (When a person is inside of a car, which expression can we use?)
*May 28, 2008 by John*

**statistics**

im so confused! please help! 3. A car manufacturer is interested in conducting a study to estimate the mean stopping distance for a new type of brakes when used in a car that is traveling at 60 miles per hour. These new brakes will be installed on cars of the same model and ...
*March 4, 2011 by george*

**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*

**Algebra **

I don't understand can someone help me on how to figure this out please !! Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hour an train B is traveling at 100 miles per hour. Train A passes a station at 2:25 pm. If ...
*May 26, 2010 by Jim B*

**Physics**

A 2.0 x 103 kg car is pulled 345 m up a hill that make s an angle of 15° with the horizontal. What is the potential energy of the car at the top of the hill? If the car rolls down the hill, what will its speed be if we neglect friction? plz help? confused
*January 17, 2008 by James*

**Physics**

A 2.0 x 103 kg car is pulled 345 m up a hill that make s an angle of 15° with the horizontal. What is the potential energy of the car at the top of the hill? If the car rolls down the hill, what will its speed be if we neglect friction? plz help? confused
*January 17, 2008 by James*

**Physics**

A 2.0 x 103 kg car is pulled 345 m up a hill that make s an angle of 15° with the horizontal. What is the potential energy of the car at the top of the hill? If the car rolls down the hill, what will its speed be if we neglect friction? plz help? confused
*January 17, 2008 by James*

**physics**

A car moving with an initial speed v collides with a second stationary car that is 50.7 percent as massive. After the collision the first car moves in the same direction as before with a speed that is 33.2 percent of the original speed. Calculate the final speed of the second ...
*March 26, 2014 by Erin*

**physics**

Two workhorses tow a barge along a straight canal. Each horse exerts a constant force of magnitude F, and the tow ropes make an angle θ with the direction of motion of the horses and the barge. (Figure 1) Each horse is traveling at a constant speed v. How much work W is ...
*October 24, 2013 by HELP*

**Help**

I have tried to solve this problem several time sto get the answer and I am lost. Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hr abd train B is traveling at 90 miles per hr. Train A passes a station at 3:25am,if ...
*January 20, 2011 by Tracy*

**physics - rotational motion**

A small car of mass, m, is release at height, h, on a steel track. the car rolls down the track and through the loop of radius, R. at the end of the rack, the car rolls off the track, which is positioned at height, H, above the floor. neglect friction and the small amount of ...
*April 22, 2011 by Lauren*

**drwls please read**

i know this might seem kind of long. but if you could please help me, i'd greatly appreciate it. a. suppose you have a tug of war with a friend who is the same size and weight as you are. You both pull as hard as you can, but neither of you seems to be winning. You move a ...
*October 25, 2008 by Tony*

**accounting**

Prepare adjusting journal entries for the year ended (or date of) December 31, 2005, for each of these separate situations. Assume that prepaid expenses are initially recorded in asset accounts. Also assume that fees collected in advance of work are initially recorded as ...
*April 6, 2010 by kim*

**Physics**

A 3kg mass moving initially to the right along the x axis with a speed of 8m/s makes a perfectly inelastic collision with a 5kg mass initially at rest at the origin.what fraction of the initial kinetic energy of the system is lost in the collision.what formula must i use.
*February 2, 2011 by Joel*

**Physics**

A 3kg mass moving initially to the right along the x axis with a speed of 8m/s makes a perfectly inelastic collision with a 5kg mass initially at rest at the origin.what fraction of the initial kinetic energy of the system is lost in the collision.what formula must i use.
*February 2, 2011 by Joel*

**Physics Physics Physics...**

A billiard ball traveling at 3.8 m/s has an elastic head-on collision with a billiard ball of equal mass that is initially at rest. The first ball is at rest after the collision. What is the speed of the second ball after the collision?
*December 15, 2011 by LaResha*

**physics**

An elevator is initially moving upward at a speed of 12.84 m/s. The elevator experiences a constant downward acceleration of magnitude 3.80 m/s2 for 3.18 s. (a) Find the magnitude and direction of the elevator's final velocity. magnitude: direction:
*September 13, 2011 by Nour *

**math **

Their car gets 30 miles per gallon in gas mileage. They are traveling for seven hours at a rate of 55 miles per hour. Assuming no stops, how much gas will they need to complete their seven hour trip?
*May 20, 2014 by Anonymous*

**math**

A jet plane traveling at 500 mph overtakes a propeller plane traveling at 200 mph that had a 2-hour head start. How far from the starting point are the plains?
*December 4, 2012 by justin*

**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*

**physics**

The tension at which a fishing line snaps is commonly called the line's "strength." What minimum strength is needed for a line that is to stop a salmon of weight 85 N in 9.0 cm if the fish is initially drifting at 2.5 m/s? Assume a constant deceleration and that the fishing ...
*October 15, 2010 by Anonymous*

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