Sunday

April 20, 2014

April 20, 2014

Number of results: 5,811

**math**

two cars leave the same point at noon. one car travels north and the other car travels east. suppose the northbound car is traveling 40mph, and after two hours, the two car are 100 miles apart.how fast is the other car going?
*Monday, October 24, 2011 at 9:14am by jane *

**math**

two cars leave the same point at noon. one car travels north and the other car travels east. suppose the northbound car is traveling 40mph, and after two hours, the two car are 100 miles apart.how fast is the other car going?
*Monday, October 24, 2011 at 9:14am by jane *

**Math **

"A ship leaves port on a bearing of 34.0 degrees and travels 10.4 mi. The ship then turns due east and travels 4.6 mi. How far is the ship from port, and what is its bearing from port?" I would like to know how the actual steps in finding the answer please!
*Thursday, December 1, 2011 at 10:32pm by Mei*

**chemistry**

what are the coefficients a, b (van der waals equation) for nitrogen/ N2?
*Thursday, November 1, 2007 at 8:14pm by Avonlea*

**spanish 2**

paula y maria van a _____ las piernas.(afeitarse)
*Monday, December 14, 2009 at 6:38pm by nene*

**Organic Chemistry**

I think I answered it. Osm = i*M where i is the van't Hoff factor.
*Tuesday, March 6, 2012 at 8:56pm by DrBob222*

**history**

did ludwig van beethoven die on March 26,1827
*Thursday, January 3, 2013 at 3:09pm by Kandy Bear*

**chemestry**

Explain the physical significance of van der waals,parameters ?
*Sunday, February 17, 2013 at 9:50am by shshi ranjan*

**Science (8th grade)**

for part 1, consider that your average jet plane flies at about 600 mph No way your snail goes 4896 mph. I'd think that a snail probably travels about 0.136 cm/s That's what I'd call a snail's pace. Since that's hard to measure, try seeing how far it travels in 10 seconds.
*Saturday, February 9, 2013 at 4:36pm by Steve*

**physics**

A baseball pitcher throws a baseball horizontally at a linear speed of 41.3 m/s. Before being caught, the baseball travels a horizontal distance of 15.4 m and rotates through an angle of 52.7 rad. The baseball has a radius of 3.74 cm and is rotating about an axis as it travels...
*Wednesday, April 9, 2014 at 12:28am by Anonymous*

**Physics - Waves**

A speaker which produces a frequency of 400 Hz is moving away from an observer and towards a wall at 5 m/s when it is 23 degrees Celsius. What is the frequency of the sound that travels back to the observer? What is the frequency of the sound that travels forward and bounces ...
*Sunday, February 1, 2009 at 7:03pm by Patrick*

**calculus**

Two cars start from the same point at the same time. One travels north at 25 mph, and the other travels east at 60 mph. How fast is the distance between them increasing at the end of 1 hr? Find D after 1 Hr, solve D^2=25^2+ 60^2
*Tuesday, October 23, 2012 at 10:22am by Allison*

**math**

Chris travels for a certain length of time at 40 miles per hour and Donny travels for the same length of time at 60 miles per hour. what is the average speed?
*Wednesday, September 28, 2011 at 12:09pm by Julie*

**Math**

Need equation form for this number problem. Theater tickets are $8 for general admission and $5 for students. During one evening 240 tickets were sold, and the receipts were $1680. How many of each type of ticket was sold? use the equations and solve g -----> number of ...
*Monday, August 6, 2007 at 12:00pm by Lynn*

**Algebra**

Tricia and janine are roommates and leave Houston on Interstate 10 at the same time to visit their families for a long weekend. Tricia travels west and Janine travels east. If Tricia's average speed is 12 mph faster than Janine's, find the speed of each if they are 320miles ...
*Thursday, July 28, 2011 at 4:57am by jj*

**chem again**

i attempted to do b and c can you tell me if i did it right? 125...... T1 85.0 ....127 Kelvin 127+ 273= 358 125= 85 T1=358 125*358/85= 526.5 for C i did V1... -33 C Kelvin -33+273=240 54.0ml....160 C Kelvin 160+273=433 V1=54 240=433 54*240/433=29.9 T1
*Sunday, April 27, 2008 at 6:13pm by jerson*

**Precal**

The balloon travels 14mi/hr*t/3600 where t is in seconds. I suppose it would be better to change the velocity to ft/sec Memorize this conversion factor 60mph=88fps the balloon travels then 14/60*88 t feet. the triangle then yields a slant height of distance= sqrt (120^2+(14*88...
*Thursday, December 2, 2010 at 9:21pm by bobpursley*

**math **

a boat starts at point a p travels 15 miles due north to point r then turns due east and travels 8 more miles to the dock at point t find the distance the boat would have traveled if it had gone directly from point p to point t
*Wednesday, February 20, 2013 at 6:44pm by cathy*

**PHYSICS**

A race car travels northward on a straight, level track at a constant speed travels 0.760 km in 20.0 s. The return trip over the same track is made in 25.0 s. (a) What is the average velocity of the car in m/s for the first leg of the run? m/s (b) What is the average velocity ...
*Sunday, October 16, 2011 at 7:53pm by Moe*

**physics**

A race car travels northward on a straight, level track at a constant speed travels 0.745 km in 22.0 s. The return trip over the same track is made in 27.0 s. (a) What is the average velocity of the car in m/s for the first leg of the run? m/s (b) What is the average velocity ...
*Sunday, March 3, 2013 at 12:18am by fatimah*

**Math**

When Clint began his pursuit, Sue was already 60 miles ahead. If Sue travels at 40 mph and Clint travels at 60 mph, how many hours will it take Clint to catch up with Sue? It is a distance problem I do know that. I am not sure what type. Either + or =. I am very unsure and ...
*Monday, February 22, 2010 at 1:59pm by Crystal*

**statistics**

Is my answer correct. Q. How many megabytes of memory would be required to store an uncompressed 2-minute video file which is played at 24 frames per second, with a frame size of 320 × 240 pixels using a 24-bit per pixel colour model? A. 320*240*24 = 1843200 bytes since, 24*...
*Tuesday, July 19, 2011 at 1:35pm by Sub*

**math**

At 1:00 p.m., a car leaves a city and travels north at a rate of 55 mi/h. An hour later, a second car leaves the city and travels south at a rate of 60 mi/hr. At what time will the two cars be 285 miles apart We will be happy to critique your work or thinking.
*Monday, May 7, 2007 at 12:34am by veronica*

**Trig**

cos (2Ø) = -1/2 we know cos 60° = + 1/2 and we know that 2Ø, our angle, must be in quadrants II or III by the CAST rule so 2Ø = 180-60 = 120° or 2Ø = 180+60 = 240° Ø = 60° or Ø = 120° but the period of cos 2Ø is 180° so adding 180° to our answers will produce more answers...
*Tuesday, May 10, 2011 at 10:32pm by Reiny*

**Chem II**

Help me understand how to figure the i in the van't Hoff factor. MgSO4. Would the i = 5? If not, what and how?
*Friday, June 6, 2008 at 1:40pm by Ken*

**history**

yeah because didn't jackson cause the panic not van buren. Wouldn't that make the answer B
*Sunday, November 9, 2008 at 10:12pm by bill*

**grammar**

her family's or families van was confortable. which is the correct possessive form of the noun?
*Tuesday, February 3, 2009 at 4:40pm by maria*

**Art**

What important event happened in the netherlands which affected vincent van gogh?
*Monday, April 13, 2009 at 7:06pm by Hayley*

**english**

why is the book "flipped" by wendelin van draanen considered a romance novel?
*Sunday, November 7, 2010 at 11:35am by Rebecca*

**General Chemistry**

Can a Van Der Waal force change the shape of a molecule?
*Saturday, January 21, 2012 at 1:14pm by Anonymous*

**English**

What are some connections* to Rip Van Winkle? *Connection to... -Self -World
*Thursday, April 11, 2013 at 6:48pm by Kim*

**geometry (help steve)**

Well, a unit circle externally tangent to the central unit circle subtends a central angle of 60°. Draw a diagram to see that the tangents from the center to the external circles form angles of 30° each. So, if there are 4 external circles, they cover 240°. Since there are 360...
*Monday, June 24, 2013 at 10:49am by Steve*

**algebra**

during the first trip a canoeist travels 79 miles at a certain speed. the canoist travels 24 miles on the second part of the trip at a speed of 5 mph slower. the total time for the trip is 5 hrs. what was the speed on each part of the trip
*Saturday, October 24, 2009 at 1:45am by anonymous *

**Math**

Two cars start from the same place and travel in the same direction. If one car travels at 60 miles per hour and the other travels at 45 miles per hour, in how many hours will they be 60 miles apart?
*Wednesday, February 10, 2010 at 11:04am by Karla*

**Physics**

Two cars travel at the same constant speed. The first car travels for 10 minutes, the second for 27 minutes. If the second car travels 18 miles farther tht the first, how far does each car travel?
*Sunday, September 19, 2010 at 6:52pm by Rose*

**College Algebra**

two trains leave a train station at the same time. One travels east at 10 miles per hour, the other travels west at 9 miles per hour. In how many hours will the two trains be 45.6 miles apart?
*Tuesday, August 31, 2010 at 7:22pm by AJ*

**Spanish**

Would help if you gave the tense but here you go. Ir- Present Tense Yo- Voy Tu- Vas El Ella Ud.-Va Nosotros- Vamos Vosotros- Vais Ellas Ellos Uds.- Van Ir- Preterite Yo- Fui Tu- Fuiste El Ella Ud.-Fue Nosotros- Fuimos Vosotros- Fuisteis Ellas Ellos Uds.- Fueron Example They go...
*Monday, March 7, 2011 at 8:30pm by Keaton*

**Math**

A train leaves a station and travels north at a speed of 45mph. Four hours later, a second train leaves on a parallel track and travels north at 105 mph. How far from the station will they meet? The trains will meet ________ miles away from the station
*Wednesday, March 5, 2014 at 9:56pm by Pam*

**trigonometry**

1. A boat sails for 4 hours at 35 mph in a direction 135degrees 51'. how far shouth has it sailed (to the nearest mile)? Is it 96 miles?? 2. A ship travels 55 km on a bearing of 11degrees, and then travels on a bearing of 101degrees for 133 km. find the distance of the end of ...
*Wednesday, January 7, 2009 at 3:50pm by please check*

**physics**

Ships A and B leave port together. For the next two hours, ship A travels at 30.0 in a direction 75.0 west of north while the ship B travels 25.0 east of north at 40.0 . What is the distance between the two ships two hours after they depart? What is the s
*Thursday, October 6, 2011 at 5:49pm by Anonymous*

**Math**

20 seconds is 1/180 hour Assuming we can ignore the distance he travels in 20 seconds, since his speed is so much slower than the trains, we see that the train travels 15mi/hr * 1/180 hr = 15/180 mi = 1/12 mi = 440 ft
*Wednesday, November 20, 2013 at 8:01pm by Steve*

**physics**

3. A man leaves his home by car and travels 5 km on a road running due East. The driver then turns left and travels 2 km due north to a junction where he joins a road that goes North West and drives a further 2 km. Find his displacement from home by then.
*Sunday, February 2, 2014 at 2:28am by karen*

**chemistry**

disregard the last post i meade. i submitted it and i realized i forget to add the87.56 into the work! Ba 137.33 2Cl 70.9 2O 32 = 240.23 2Cl 70.9/240.23 Xs 100= 29.51% 0.2951 X 87.56mg= 25.84mgCl 25.84 Xs 1mol/35.45= 0.729 X 6.022= 4.39 X 10 to the 23 power. is that correct?
*Saturday, November 28, 2009 at 12:32pm by megan*

**Pre Calculus 2**

A ship regularly travels between two ports that are 350 miles apart. When traveling directly from A to B, the ship sails on a bearing of . However, to avoid a storm, one day the ship leaves A on a bearing of and travels for 6 hours at 17mph. When the bad weather has passed, it...
*Sunday, August 4, 2013 at 3:45pm by Sara*

**physics**

X = -80m/s * 3600s/h * (1/1600)mi/m = -180mi/h. Y = ver. = -320mi/h. tanA = Y/X = -320 / -180 = 1.778, Ar = 60.64 deg. Ar = Reference angle. A=Ar + 180 = 60.64 + 180 = 240.64 deg. R = X / cosA = -180 / cos240.64 = 367mi/h @ 240.64 deg.
*Tuesday, August 30, 2011 at 9:12pm by Henry*

**Physics**

A automobile travels at a speed of northward along a street, and a 7000-N sports car travels at a speed of eastward along an intersecting street. (a) If neither driver brakes and the cars collide at the intersection and lock bumpers, what will the velocity of the cars be ...
*Thursday, December 19, 2013 at 7:25pm by Bryan*

**Algebra**

If a boat leaves dock and travels 3 miles north, then travels 2.5 miles west, how many miles from the dock is the boat?
*Thursday, October 27, 2011 at 3:17am by Luisa*

**biographies**

In what ways were Vincent van Gogh's life remarkable? See the above site
*Saturday, March 24, 2007 at 3:45pm by Rose*

**chemistry**

For a 0.001 molar solution of NH4HCO3, the van’t Hoff factor would be about a. 1. b. 2. c. 3. d. 4. e. 5.
*Wednesday, April 14, 2010 at 6:36am by write2khin*

**6th grade geometry**

Prism V = h * w * l V = 7 * 4 * 3 = ? Cylinder V = π r^2 h Van V = (8 * 5 * 13) -37 = ? You can do the calculations.
*Saturday, November 27, 2010 at 10:59am by PsyDAG*

**math**

how many different ways can 7 out of 18 people be picked to fit into a van
*Sunday, March 24, 2013 at 3:29pm by john*

**math**

how many different ways can 7 out of 18 people be picked to fit into a van
*Sunday, March 24, 2013 at 3:34pm by john*

**Physics, van de graff generators...**

damn u was doing homework at 11:27 am lol
*Thursday, June 22, 2006 at 11:27am by fgfh*

**physics**

A ship mapping the depth of the ocean emits a sound of 37 kHz. The sound travels to the ocean floor and returns 0.65 s later. (a) How deep is the water at that location? m (b) What is the wavelength of the wave in water? cm (c) What is the wavelength of the reflected wave as ...
*Monday, April 16, 2012 at 1:55pm by Anonymous*

**Physics**

A ship mapping the depth of the ocean emits a sound of 37 kHz. The sound travels to the ocean floor and returns 0.65 s later. (a) How deep is the water at that location? m (b) What is the wavelength of the wave in water? cm (c) What is the wavelength of the reflected wave as ...
*Tuesday, April 17, 2012 at 4:15pm by Anonymous*

**physics**

A ship mapping the depth of the ocean emits a sound of 37 kHz. The sound travels to the ocean floor and returns 0.65 s later. (a) How deep is the water at that location? m (b) What is the wavelength of the wave in water? cm (c) What is the wavelength of the reflected wave as ...
*Tuesday, April 17, 2012 at 8:30pm by Anonymous*

**Math **

The speed of a bicyclist is 10mph faster than the speed of a walker. If the bicyclist travels 26 miles in the same amount of time that the walker travels 6 miles. Find the speed of the bicyclist.
*Sunday, November 29, 2009 at 11:25am by Anonymous*

**Physics**

Two children on racing bikes start from the same refrence point. child A travels 5.0 meters per second right and child B travels 4.5 meters per second right. howmuch farther from the oint of origin is child a than child b after 5 seconds
*Sunday, February 7, 2010 at 7:21pm by jake*

**physics**

) A cord has two sections with linear densities of and Fig. 15–34. An incident wave, given by where x is in meters and in seconds, travels along the lighter cord. (a) What is the wavelength on the lighter section of the cord? (b) What is the tension in the cord? (c) What is ...
*Wednesday, November 6, 2013 at 10:33am by emy*

**Math**

One model train travels around a loop every 5 minutes. The other travels on anothe loop every 4 minutes. If they begin at the same point at the same time, how much time will pass before they meet at that point again?
*Tuesday, September 25, 2007 at 5:29pm by Danessa*

**math**

If he travels at 120 Km per hour in 30'(ie 1/2 hour) he did 120/2=60Km. If he travels at max speed allowed he takes 30+20=50'or 50/60=5/6 hours to reach his destination. so speed is: 60/(5/6)= 360/5=72Km/h
*Friday, November 30, 2012 at 12:54am by kay*

**math**

So..175/25 = 7 and 250/25=25 So, anthony travels 7 km a day and sam travels 25 km. each day.
*Wednesday, September 9, 2009 at 5:24pm by Van*

**physics**

Try this. car|--0.100 km--|-------d---------| t r u c k xxxxxx|-------d---------| The truck travels a distance, d km, while the car travels d + 0.100 km. distance = rate x time. The time must be equal so time = distance/rate time for truck = d/75 time for car = (d+0.100)/90 ...
*Saturday, June 20, 2009 at 1:02pm by DrBob222*

**Calculus!**

Make a sketch: x^2 + y^2 = 256 when t=0 , y=12, x = √112 when t = 1, y = 8 , x = √192 when t = 2 , y = 4 , x = √240 when t = 3, y = 0, x = √256 = 16 given dy/dt = -4 ft/s 2x dx/dt + 2y dy/dt = 0 dx/dt = -y (dy/dt) / x = 0/16 = 0 check: let t=1 y = 8, y...
*Friday, November 23, 2012 at 3:33pm by Reiny*

**Physics**

Two cars pass a school when a stopwatch reads zero. They both travel in the same direction. Car A travels at a constant speed of 98 km/h and Car B travels at 64 km/h. How many meters apart are the two cars when the stopwatch reads 2.0 hours?
*Saturday, February 8, 2014 at 4:23pm by Erin*

**physics**

From Boston to San Francisco, the speed of the plane relative to the ground is (240 - 41) = 199 m/s From San Francisco back to Boston, the speed is (240 + 41) = 281 m/s c) The average speed is just (199 + 281)/2
*Thursday, October 4, 2012 at 10:20pm by Jennifer*

**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*

**Physics please help**

A ship mapping the depth of the ocean emits a sound of 37 kHz. The sound travels to the ocean floor and returns 0.65 s later. (a) How deep is the water at that location? m (b) What is the wavelength of the wave in water? cm (c) What is the wavelength of the reflected wave as ...
*Tuesday, April 17, 2012 at 5:57pm by Anonymous*

**physics**

Assume that the two discs are on the same shaft, and that the shaft rotates less than one full rotation as the bullet passes from one disc to the other. The shaft rotates 0.240 rad at 95.0 rad/s during the interval of passing from one to the other. The time required to cover ...
*Thursday, January 3, 2008 at 3:55pm by drwls*

**algebra**

A light-year is the distance that light travels in one year. Find the number of miles in a light-year if light travels 1.86 × 105 miles/second. (Round to one decimal place, and assume that there are 365 days in a year.)
*Friday, March 12, 2010 at 3:10pm by larry*

**physics**

which of the following is there no net work? A car accelerates down a hill. A car travels at constant speed on a flat road. A car decelerates on a flat road. A car decelerates as it travels up a hill. I say its the first one
*Saturday, August 6, 2011 at 7:31pm by Kate*

**physics**

One airplane travels due north at 300 km/h while another travels due south at 300 km/h. Select the false statement. The airplanes have the same speed The airplanes have the same velocity
*Thursday, March 14, 2013 at 3:21pm by tate*

**physics**

a plane travels 2.5 km at an angle of 35degrees to the ground then changes direction and travels 5.2 km at an angle of 22degrees to the ground. What is the magnitude and direction of the plane's displacement?
*Saturday, October 4, 2008 at 10:42am by i love polka*

**physics**

a plane travels 2.5 km at an angle of 35degrees to the ground then changes direction and travels 5.2 km at an angle of 22degrees to the ground. What is the magnitude and direction of the plane's displacement?
*Saturday, October 4, 2008 at 11:41am by i love polka*

**Algebra 1**

a train leaves a city heading west and travels at 50 miles per hour. three hours later, a second train laeves from the same place and travels in the same directionat 65 per hour. how long will it take for the second train to overtake first train?
*Thursday, January 27, 2011 at 8:58pm by Jasmine *

**Math, HELP!**

50 weeks in a year ??? mmmhhhh? anyway I will go with that. n = 30x50 = 1500 i = .06/50 = .0012 deposit = x x( 1.0012^1500 - 1)/.0012 = 250000 you do the button-pushing (I got $59.49 ) check by estimating: payment appr. 240 a month monthly rate = .06/12 = .005 amount after 30 ...
*Monday, May 7, 2012 at 8:25pm by Reiny*

**math**

240/300 = 48/60 48*5=240 60*5=300
*Sunday, February 17, 2008 at 6:43pm by Geekoid*

**Math 2 questions**

volume of 2 similar solids is proportional to the cube of their corresponding sides, so x/240 = 23^3/92^3 = (23/92)^3 = (1/4)^3 = 1/64 64x = 240 x = 3.75 the new volume is 3.75 ft^3 If I told you that the surface area of 2 similar solids is proportional to the square of their ...
*Sunday, March 16, 2014 at 6:20pm by Reiny*

**Physics, van de graff generators...**

When a small metal ball with a charge is placed in an electrical field supplie dby a van de graff generator, it experiences a force from the generator, and thus it applies a reaction force. But does the ball also apply a force met with a reaction force of the generator? Also, ...
*Thursday, June 22, 2006 at 11:27am by TJ*

**Physics**

Two boats, A and B, travel with a velocity of 4.90 m/s across a river of width 72.0 m. The river flows with a velocity of 2.50 m/s. Boat A travels the shortest distance and boat B travels in the shortest time. If both start at the same time, how much time will they take to ...
*Monday, September 21, 2009 at 7:39pm by Willie*

**algebra 2**

during the first part of a trip, a canoeist travels 47 miles at a certain speed. the canoeist travels 16miles on the second part of the trip at a speed 5mph slower. the total time for the trip is 4 hours. what was the speed on each part of the trip.
*Monday, April 11, 2011 at 10:52pm by tricia*

**algebra 2**

During the first part of a trip a canoeist travels 26 miles at a certain speed. The canoeist travels 8 miles on the second part of the trip at a speed 5 mph slower. Total time is 3 hours. What was the seed on each part of the trip
*Sunday, April 21, 2013 at 11:10pm by bob*

**Algebra 2**

During the first part of a trip a canoeist travels 93 miles at a certain speed. The conoiest travels 5 miles on the second trip at 5mph slower. The total time for the trip is 2 hrs. What was the speed on each part of the trip? I entered 1.999 as answer given, but it was wrong...
*Friday, April 1, 2011 at 1:54am by Esther*

**Math-Trigonometry**

12) Two jeeps in the desert leave their starting points at noon. The first travels a course of 345º and averages 23 mph. The second travels a course of 45º and averages 20 mph. How far apart are the two jeeps at 10 PM? What is the bearing from the first jeep to the second at ...
*Tuesday, May 28, 2013 at 2:49pm by Gianna *

**5th grade science**

Which layer of the earth's atmosphere contains the Van Allen radiation belt?
*Wednesday, November 12, 2008 at 5:38pm by Amy*

**chemistry**

according to van deer walls equation, why does H2S have higher parameter a than CO2
*Sunday, March 14, 2010 at 8:02pm by bme1*

**chemistry**

What is the expected van't Hoff factor for NaC2H3O2 in an aqueous solution, assuming 100% dissociation.
*Monday, December 6, 2010 at 8:21pm by kyle*

**grammar**

The sentence is correct, if "by" means "near" or "close to" the van. Of course, you need appropriate capitalization and punctuation.
*Tuesday, May 24, 2011 at 12:38pm by Ms. Sue*

**Chemmistry gas laws**

So what's your problem? Just plug into the van der Waals equation.
*Thursday, October 13, 2011 at 3:07pm by DrBob222*

**reading **

a sentence in the story says that a quarrelsome wife may be a blessing what does that mean in rip van winkle
*Thursday, February 9, 2012 at 7:40pm by taylor*

**Math**

If a van is traveling at 25mph and needs to stop immediately, how much time and distance will be needed?
*Thursday, May 17, 2012 at 12:35pm by Cher*

**Math**

There are 45 choir members going to the recital. Each van can carry 8 people. How many vans are needed?
*Wednesday, October 17, 2012 at 5:41pm by Shion*

**Chemistry**

Isn't this just a matter of substituting the numbers into the van der waals equation? What's the problem?
*Tuesday, November 20, 2012 at 6:57pm by DrBob222*

**language arts**

Mr. Van Daan's son, Peter, spent a lot of time with Anne.
*Wednesday, March 6, 2013 at 9:24am by Anonymous*

**Math**

front hemisphere volume is 2/3 pi * 3^3 middle cylinder volume is pi * 3^2 * 12 tail cylinder is pi * 3^2 * 4 Add 'em up. I get 508.93 Maybe I misunderstood the problem. Anyway, having the volume of the model, the real sub is scaled up by a factor of 20*12 = 240 So, the volume...
*Monday, February 25, 2013 at 5:19pm by Steve*

**Physics**

Wp = m*g = 60kg * 9.8N/kg = 588 N. = Wt. of the person. Fp = 588*sin25 = 248.5 N. = Force parallel to plane. Fv = 588*cos25 = 533 N. = Force perpendicular to plane Fk = 0.450 * 533 = 240 N. = Force of kinetic friction. Fn = m*a a = Fn/m = (Fp-Fk)/m a = (248.5-240)/60 = 0.142 m...
*Tuesday, June 25, 2013 at 10:52pm by Henry *

**algebra**

A ball is thrown upward from a height of 240 feet. the height h of the object(in feet) t seconds after the ball is released is given by h=-16t^2+32t+240 a. how long does it take the ball to reach its maximum height? b. what is the maximum height attained by the ball? c. how ...
*Thursday, December 5, 2013 at 1:25pm by mike*

**Advanced Functions**

One rotation is 2π radians, so you can set up a ratio (4π/3) / (2π) = x/24 x = 24(4π/3) / (2π) = 16 It would take 16 hrs or look at it this way: 4π/3 radians = 240° so it does 240/360 or 2/3 of a rotation 2/3 of 24 hours = 16 hours
*Monday, November 14, 2011 at 10:17am by Reiny*

**Algebra**

Speed of passenger train is 6mph faster than the freight train. The passenger train travels 260 miles at the same time the freight train travels 230 mph. WHAT would be the speed of both the passenger and freight trains?????
*Tuesday, December 13, 2011 at 4:50pm by Chelsea*

**physics**

A neon atom (m = 20.0 u) makes a perfectly elastic collision with another atom at rest. After the impact, the neon atom travels away at a 55.2° angle from its original direction and the unknown atom travels away at a 51.8° angle. What is the mass of the unknown atom? [Hint: ...
*Thursday, October 20, 2011 at 11:30pm by kago*

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