# If the relative atomic mass of CH2O is calculated it's empirical formula (C=12,H=1,O=16)

46,086 questions, page 267-
## Chemistry

HELP£¡ can someone find identify one chemical reaction that C4H4O4 is involved in. Or the synthesis of the compound? C4H4O4 is a formula that applies to both maleic and fumaric acid. A synthesis reaction of reaction of maleic acid is: Maleic acid

*asked by Qing on December 18, 2006* -
## Math-check my work please??

Write an equation, in point-slope form, for the line that is perpendicular to y – 10 = 3/2 (x – 4) and that passes through the point (4, 2). My Answer: Formula for point-slope form; y – y = m(x – x) Insert y and x value; y – 2 = m(x – 4) If the

*asked by Scarlet (Scar for short) on March 21, 2016* -
## HELP i dont get it

The producer of X is contemplating a price change and has asked for your advice. After some empirical investigation, you conclude that the price elasticity of demand for X is 0.75. Your advice to the producer is to Increase price to raise total revenue.

*asked by john on November 1, 2010* -
## MATH

A women is taking a lesson in a circular swimming pool. she starts at one edge of the pool and swims for 12 meters in a straight line till hits the edge of the pool. she turns and swims another 5 meters and again hits the edge of the pool. she realizes

*asked by Adham on January 18, 2016* -
## Chemistry - Answer Check

The two common chlorides of Phosphorus, PCl3 and PCl5, both important in the production of other phosphorous compounds, coexist in equilibrium as shown in the balanced chemical reaction below: PCl3 (g) + Cl2 (g) PCl5 (g) At 250 C, an equilibrium mixture in

*asked by Anonymous on May 17, 2016* -
## algebra

The distance you can see to the horizon is given by the formula d= the square root of 1.5 times h, where d is the distance in miles and h is the height in feet above the horizon line. Mt. Whitney is the highest point in the contiguous 48 states. Its

*asked by ammy on September 30, 2007* -
## math/Finance

I want to know the formula to use 1. A 120-day simple discount promissory note for $12,000 with a simple discount rate of 9% was signed on July 14. It was discounted on August 30 at 9.5%. Find the proceeds at the time of the sale. 2. 8. A $15,000 T-bill is

*asked by Janine on September 6, 2012* -
## Statistics

The following table shows a frequency distribution of patients with colon cancer treated at Community Hospital. Compute the proportion of patients in each category. Community Hospital Ages of Patients with Colon Cancer Annual Statistics, 20XX Age No. of

*asked by Anonymous 11/16/13 on November 16, 2013* -
## computer

You will need to design an application that will prompt a user for his or her hourly pay rate, hours worked, and whether he or she is single, married, divorced, or widowed. It will then calculate the user's gross and net pay. If the user works more than 40

*asked by f pass on January 23, 2012* -
## physics

Steel expands 11 parts in a million for each 1 degree C change. Consider a 40,000 km steel pipe that forms a ring to fit snugly all around the circumference of the Earth. Suppose people along its length breathe on it so as to raise its temperature 0.80

*asked by christy on April 1, 2012* -
## physics

Steel expands 11 parts in a million for each 1 degree C change. Consider a 40,000 km steel pipe that forms a ring to fit snugly all around the circumference of the Earth. Suppose people along its length breathe on it so as to raise its temperature 0.80

*asked by C on March 31, 2012* -
## physics

Steel expands 11 parts in a million for each 1 degree C change. Consider a 40,000 km steel pipe that forms a ring to fit snugly all around the circumference of the Earth. Suppose people along its length breathe on it so as to raise its temperature 0.80

*asked by christy on April 3, 2012* -
## Physics

Moving at 20 m/s , a remote controlled car of mass 1000kg hits a pile of sand and comes to rest in 10 s. Find the average force that acted to stop the car. The same car now hits a wall and comes to rest in 1s. Find the average force that acted to stop the

*asked by Abby on August 24, 2006* -
## Math (Interest)

If I was given an amount of money for 1 month, and I wanted to compound its interest monthly, which formula would I need to use? My interest rate is 2.5%. I want to compound monthly (so n=12). But I want to find the amount after compounding interest

*asked by Kaye on February 11, 2015* -
## Algebra

69: 16x^2+8x-3. I inserted this into the quadratic formula and got -8+/- the square root of (8^2-4(16)(-3)/(2 times 16). This reduced to -8+/- the square root of (64+120)/32, which further reduced to -8+/-the square root of 184/32. I reduced the top part

*asked by Britt on October 4, 2009* -
## Chemistry

Hank Hill loves everything about gas propane, C3H8. One day his son Bobby asks him the following set of questions about propane. Hank hems and haws for a few moments and finally tells his son he'll get back to him with answers but he has to mow the lawn

*asked by Anonymous on May 9, 2011* -
## Physics

A trapeze artist, starting from rest, swings downward on the bar, lets go at the bottom of the swing, and falls freely to the net. An assistant, standing on the same platform as the trapeze artist, jumps from rest straight downward. Friction and air

*asked by Papito on May 8, 2007* -
## Math

(1) The curved surface area A of a cone of height and base radius is pie R squareroot H square+T square. (a) Make H the subject of the formula. (b) Find the height of a cone of area 550cm Square and base radius 7cm, taking pie to be 22/7. (2) if nSquare _

*asked by Angela on October 31, 2017* -
## Science

A student measures the mass of a paper clip. The student’s data table is shown below. The accepted value for the paper clip’s mass is 1.14 g. Trial 1 - 2.45 g Trial 2 - 2.40 g Trial 3 - 2.42 g Which of the following describes the student’s

*asked by Scarlet on August 31, 2016* -
## Science

A student measures the mass of a paper clip. The student’s data table is shown below. The accepted value for the paper clip’s mass is 1.14 g. Trial 1, 2.45 g Trial 2, 2.40 g Trial 3, 2.42 g Which of the following describes the student’s measurements?

*asked by WonderWomen on August 29, 2016* -
## Astronomy

How the asymmetry between matter and anti-matter in our Universe might be generated. Why might neutrinos be a key player in achieving this? (a) We already know neutrinos can morph from one neutrino type to another. It is possible, although not certain,

*asked by qwerty on October 1, 2013* -
## Math 1200

a complex has 205 apartment units. When the rent is $635 per month all 205 units are occupied.Assume that for each $75 increase in rent 15 units becomes vacent. Assume that the number of occupied units is a linear function of the rent. Each occupied unit

*asked by Andrew on April 5, 2012* -
## Physics

A police car is traveling at a velocity of 20.0 m/s due north, when a car zooms by at a constant velocity of 44.0 m/s due north. After a reaction time 0.700 s the policeman begins to pursue the speeder with an acceleration of 6.00 m/s^2. Including the

*asked by Candice on September 29, 2014* -
## Chemistry

Write balanced equations for the formation of [Ni(NH3)6][BF4]2 starting from an anhydrous sample of nickel(II) choride hexahydrate. (3 equations necessary) I am slightly confused by this. I think the starting sample has the formula [Ni(H20)6]Cl2 Would this

*asked by Alice on March 11, 2009* -
## Physics

Block A of mass 4.0 kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650 N m. The other end of the spring is attached to a wall. The block is pushed toward the wall until the spring has been

*asked by Joe on September 19, 2010* -
## Finance Math

Jane made a down payment of 1500 dollars toward the purchase of a car. To pay the balance of the purchase price, she has secured a loan from her bank at the nominal rate of 5.8 percent per year compounded monthly. Under the terms of her finance agreement,

*asked by Camille on March 9, 2013* -
## Chemistry

For my chemistry lab, I reacted Mg powder with HCl to create H2 gas. I measured the volume of H2 gas created by salt water displacement by reading off an inverted test tube. I measured 14.0 mL and calculated the percent yield (used PV=nRT to find

*asked by Winnie on September 22, 2017* -
## Physics, science

A billiard ball moving with a speed of +4 m/s runs head on into the back of another ball moving with a speed of +2 m/s. After the collision the first ball was measured to be moving with a speed of +2 m/s. Find the speed of the second ball. formula =

*asked by Bassel on December 18, 2011* -
## Algebra

How many square feet of grass are there on a trapezoidal field with a height of 75 feet and bases of 125 feet and 81 feet. I know the formula is A = h( b + b) / 2 A = 75 ( 125 + 81) / 2 A = 75 ( 206 ) /2 OK, my question is do you divide the 206 by 2 and

*asked by Cole on August 13, 2014* -
## Social studies

1. Why do businesses seek an equilibrium price? A. It ensures that competitors cannot offer lower prices B. It attracts the largest possible number of consumers to the business •• C. It provides the highest possible prices that consumers will pay for

*asked by Mackenzie on May 1, 2017* -
## Social Studies

1. Why do businesses seek a equilibrium price? A)It ensures that competitors cannot offer lower prices B)It attracts the largest possible number of consumers to the business C)It provides the highest possible prices that consumers will pay for each product

*asked by Reeses on April 19, 2017* -
## writing...grammar

Hello, Which sentence contains a dangling modifier? 1. When the storm began to abate, we went home. 2. By the light of the moon, I tripped over a rock. 3. The dog that is man's best friend is cat's worst enemy. I don't see any dangling modifiers in here.

*asked by Mandi on July 15, 2007* -
## general physics/rotational motion

Two crates of mass m1 = 16 kg and m2 = 23 kg are connected by a cable that is strung over a pulley of mass mpulley = 22 kg as shown below. There is no friction between crate 1 and the table. m1 is sitting on the table mpulley is at the edge of the table to

*asked by kulvinder on November 2, 2009* -
## Physics

An X-ray photon scatters from a free electron with negligible initial kinetic energy at an angle of 121.2 degrees relative to the incident direction. (Take the Compton wavelength of the electron to be 2.43 pm, and all other constants/conversions to

*asked by Alphonse on December 3, 2012* -
## Physics (Center of Gravity)

In a lab in my physics class, we were supposed to find the CG of my physics teacher. My partner and I had him lie flat on a wooden (assumed uniform) board that was resting on top of two PVC pipes at either end. Since the PVC pipes acted as the base of

*asked by Brittany on May 10, 2010* -
## Chemistry (Check)

classify each of these statements as always true, sometimes true, or never true. __ST___11)The unit of a conversion factor must cancel. __AT___12)the conversion factor for changing grams and milligrams is 1g/1000mg ___ST__13)multiple conversions factors

*asked by Bryan on January 23, 2007* -
## Chemistry. can jus anyone giv me ther opinion.

Eva has two containers labeled A and B. The diameter of container A is 8 inches and the diameter of container B is 12 inches. If Eva pours the water from container A into container B, which will occur?

*asked by Jason on September 17, 2010* -
## math

Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,650 with factory and dealer rebates of $5,100 Find the monthly payment if financed for 60 months at 0% APR. Find the monthly payment if

*asked by monia on June 5, 2014* -
## mathematics

so i have this table of values demonstrating the size of a cube to the number of small cubes with one face painted. The table starts with an x value (or number of small cubes) at 3x3x3, and goes up to 8x8x8. I need to fill in the y-column (or number of

*asked by danielle on February 4, 2009* -
## math

Two sides of a triangle have lengths 8 m and 24 m. The angle between them is increasing at a rate of 0.05 rad/s. Find the rate at which the area of the triangle is changing when the angle between the sides of fixed length is 135°. Round your answer to two

*asked by christina on October 20, 2013* -
## Finance

Need help finding a formula for: Question: Suppose a bank offers you the following deal: You pay to the bank an annuity amount of $A per year over the next 10 years and the bank will in turn pay you $40,000 per year starting at the end of year 11 and

*asked by John on September 29, 2008* -
## Math (Dividend Growth Rate)

I'm trying to figure out the annual dividend growth of a company in 30 years using the current annual dividend rate, and the 5 year growth rate. The formula is A= P(1+r)^t The current dividend Is $1.92 and the Five year dividend is $2.3 So I took 1.92(1 +

*asked by mysterychicken on April 30, 2016* -
## social studies { somebody please help me please

What countries were members of the central powers in WW1? A. Austria-Hungary, Germany, Turkey*** B. France, , Germany, Russia C. France, Great-Britain, Russia D. Great-Britain, United States, Turkey 2. What caused the U.S to enter WW1 after 3years of

*asked by UNKNOWN on April 5, 2016* -
## Physics

In order to handle a hot pizza of mass 1.0 kg, a cook slides a light (i.e., of negligible mass) but stiff spatula of length 2.0 m from the right hand to the center of the pizza, which he then carries horizontally with both hands. His right hand is at one

*asked by Mary on March 30, 2009* -
## Taxtation

Another client, Ms. Dunham, has asked you to help her understand how her tax is computed. You need to provide Ms. Dunham with the following: An example of how to calculate the tax liability using the tax rate table and the tax rate formula for a taxpayer

*asked by Micheal on October 15, 2014* -
## english ( need proofread)

1. I learned that soil take crucial role in growing plants. If the soil is healthy, any plant will grew well on that soil. The plant will have a better quality, better flavor, and better nutritional values. 2. People buy food that is cheap and convenient.

*asked by ESLstudent on March 12, 2012* -
## Algebra

What kind of formula do i use to find out the cheapest rate to use for the car rental? Mr. Smith wants to rent a Suv to go from home to a conference in Seattle, he expects to do 350 miles in total during this journey There are 3 rental companies: Hertzy

*asked by Denise on October 26, 2012* -
## College Chemistry

The equilibrium constant for the conversion of cis-stilbene to trans-stilbene is Kc = 24.0 at 200 C. If cis-stilbene is placed in an empty container at an initial concentration of 0.850 mol/L. What is the final concentration of trans-stilbene in the

*asked by Elleni on October 27, 2010* -
## Statistics/Confidence Intervals

Over the last 15 Major League Baseball seasons, the mean # of strikeouts by the American League leader is 258.5. Assuming that the # of strikeouts by the league leader is normally distributed and the st. dev. for all seasons in all leagues is 34.9, find

*asked by melanie on June 21, 2008* -
## physics

A 280 kg piano slides 4.3 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40. Calculate: (a) the force exerted by the man, (b) the work done

*asked by pauleen on October 7, 2009* -
## Finance (common stock)

I need a formula for: A share of common stock of xyz ltd is expected to pay no dividends until next 2 years but at the end of year 2 it will pay $2 as dividends. Dividends are expected to grow at 4% per annum into indefinite future. Assume that the

*asked by Help Please on November 9, 2008* -
## Is My Pseudocode Correct? - Programming

I am supposed to make a pseudocode for a fat gram calculator. These are the instructions: Design a program that asks for the number of fat grams and calories in a food item. Validate the input as follows: - Make sure the number of fat grams and calories

*asked by Bryson on October 15, 2014* -
## College Physics

In Chapter 3 we learned that the force of air drag on an object moving rapidly through the air is proportional to v2, where v is the speed of the ball relative to the air. The same relation applies to the force of the wind on the blades of a wind turbine

*asked by Anon on October 18, 2011* -
## chem

Forty-two grams of benzoic acid is treated with concentrated nitric acid in some sulfuric acid. Forty-two grams of the major expected organic product is isolated. What is the percentage yield for this experiment? Give an equation with structural formulas

*asked by Damon on August 6, 2007* -
## Chemistry

1. Ethanoic acid (acetic acid) is very soluble in water. However, naturally ocurring long-chain carboxylic acids such as palmitic acid (CH3(CH2)14COOH) are insoluble in water. Explain why. My guess: Long-chain carboxylic acids have stronger relative

*asked by anonymous on May 19, 2009* -
## STATS

Samples of both surface soil and subsoil were taken from eight randomly selected farms in a county. The soil samples were analyzed to determine both surface pH and subsoil pH, which yielded the following results: Farm 1 2 3 4 Surface pH: 6.55 5.98 5.59

*asked by Rina on February 22, 2011* -
## Chemistry

Need help on a lab results write-up. The lab is the synthesis and analysis of a transition metal complex. General reaction was stated as: Fe(III) + x(acac) -> Fe(acac)x - we were to determine x by completing experiment. x = 1, 2, 3, 4... acac = 2, 4

*asked by Leah on February 14, 2013* -
## geometry

First of all let me apologize if this is the wrong section; this is a review question from a Calculus III class, but it doesn't involve any actual calculus so I posted it here. If I have a sphere with center (2,-10,4) and radius 10 what is: the

*asked by sphere on August 23, 2011* -
## BUSINESS CONSULTING

C10; Introduction to Computers Assignment 8; Business Consulting Remember Bill? He was the gentleman that you helped to start up his business in week 4. Well his business is doing well, but he has come to you with some questions and concerns. You discuss

*asked by VI GIRL on August 25, 2015* -
## Trigonometry

A variant on the carousel at a theme park is the swing ride. Swings are suspeneded from a rotating platform and move outward to form an angle x with the vertical as the ride rotates. The angle is related to the radial distance,r, in metres, from the centre

*asked by Vikki on November 13, 2014* -
## Trig

A population of animals oscillates annually from a low of 1300 on January 1st to a high of 2200 on July 1st, and back to a low of 1300 on the following January. Assume that the population is well-approximated by a sine or a cosine function. a. Find a

*asked by Alex on December 3, 2012* -
## Statistics

2. A researcher wants to find out how students feel about a proposal to ban smoking on campus. She selected THREE groups of “students who currently smoke”, “students who formerly smoke”, and “students who never smoke”. Also, she selects a

*asked by Chris on October 14, 2013* -
## chemistry

If 15.0 grams of C3H6, 10.0 grams of oxygen, and 5.00 grams of NH3 are reacted, what mass of acrylonitrile can be produced assuming 100% yield, what mass of the excess reactants remain? 15g C3H6 (1 mol / 42.08 g) = .35 mol C3H6 .36 mol C3H6 ( 2 mol C3H3N /

*asked by loulou on February 5, 2015* -
## Math

At the start, a biologist counts M microbes in a sample. Every day after that, the number of microbes in the sample, is multiplied by some number N. Write the expression for the number of microbes in the sample 1) after day one 2) after day two Use

*asked by Meagieting on October 1, 2012* -
## Calculus Or Something

Find the true location of the sun in relation to your reference of the horizon if the sun is observed to make an angle of theta with the horizon. This is not an easy question. Use Snell’s law to take into account the aberration and bending of light rays

*asked by Mike on April 30, 2007* -
## Math

Is there a formula to calculate the dimensions of the arcs on a flat piece of paper needed to form a parabolic dish? Say I was making a parabolic dish out of cardboard segments, would there be a way to calculate the size of the segments needed to form a

*asked by Anonymous on March 2, 2019* -
## algebra 1

The formula for the height of a falling object is shown below, where h is the height of the object in meters, t is the time in seconds, and k is the height, in meters, from which the object began its fall. h = –4.9t² + k If a rock is dropped from a

*asked by lily on February 14, 2013* -
## U.S. History

Text 3: Excerpt from “All in the Day’s Work: An Autobiography” by Ida M. Tarbell I had been disturbed for some time by what seemed to me the calculated belittling of the past achievements of women by many active in the campaign for suffrage. They

*asked by Reina B. on April 24, 2014* -
## Physics

1. A ball is projected horizontally from the edge of a table that is 4.0 meters high, and strikes the floor at a point 3.0 meters from a point on the floor directly below the edge of the table. The initial velocity of the ball as it is projected from the

*asked by Sandhya on March 30, 2008* -
## chemistry

Everything is neutral. Touch a table, a chair, a desk, a tree, and you don't get a shock. Compounds are neutral. So Al2O3 must be neutral. Al has a valence of +3. Oxygen has a valence of -2. Now, let's add the charges. 2 Al @ +3 each is +6. 3 O @ -2 each

*asked by DrBob222 on February 5, 2007* -
## statistics

Analyze data to determine whether or not you think there is a relationship between height and ability to lift weights (at least as measured by the bench press). 1- Compute a linear regression line to fit this data, also2- compute the correlation

*asked by Nicole.H on October 2, 2014* -
## ap chemistry

What is the ratio of the molarities of PO3^4- and HPO4^2− ions in a buffer solution having a pH of 13.16? What mass of K3PO4 must be added to 1 L of 0.1 M K2HPO4(aq) to prepare a buffer solution with a pH of 13.16? Answer in units of g What mass of

*asked by gabriella on February 4, 2014* -
## Chemistry

You are given 2.677 g of a mixture of KClO3 and KCl. When heated, the KClO3 decomposes to KCl and O2, 2 KClO3 (s) → 2 KCl (s) + 3 O2 (g), and 605 mL of O2 is collected over water at 28 °C. The total pressure of the gases in the collection flask is 763

*asked by Sam on December 1, 2012* -
## Programming

please Help... Write a pseudo code that prompt the driver to enter the miles at the before taking the car and miles when returning the car.the program must him to enter the fuel consumed that day.the must be able to determine the fuel consumption for that

*asked by Josefina on October 16, 2014* -
## Math

When wrapping a birthday gift in the shape of a rectangular prism for his mother, Kenji adds an additional 2.5 square feet of gift wrap to allow for overlap.How many square feet of gift wrap will Kenji use to wrap a gift 3.5 feet long, 18 inches wide, and

*asked by Thomas on March 12, 2017* -
## physics

( 1.) A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is not true?< (A) The passenger is in motion relative to the passer-by (B) The passer-by is stationery

*asked by lawrence on October 12, 2011* -
## Pre-Calcs

Amount after time t A (t) = yobt Where: yo = starting amount b = growth constant (percent remaining) t = number of time units In the 1978 the population of blue whale in the southern hemisphere was thought to number 5000. Since whaling has been outlawed,

*asked by Kate on December 1, 2010* -
## Chemistry (DrBob222)

Hi, here's my (almost) 2-paged lab report introduction (hopefully you remember it from yesterday). I went to class today, and actually a lot of my other classmates' introductions were over 2 pages! Now I'm feeling kind of insecure about mine, and I'm not

*asked by a Canadian on February 19, 2013* -
## physics

Monochromatic light from a helium-neon laser (wavelength=632.8 nm) shines at a right angle onto the surface of a diffraction grating that contains 130 960 lines/m. Find the angle at which one would observe the first-order maximum. formula: (a+b)Sin theta =

*asked by physics on March 14, 2009* -
## Math

Not sure how to phrase this question but - I want to know who won a contest that lasted over a 5 day period. Craig completed 50 surveys in 40 hours and Ohad completed 29 surveys in 34 hours and Brad completed 15 surveys in 20 hours. I would like the

*asked by Faye on February 15, 2007* -
## Physics

3. A low friction cart (similar to what you use in the lab) collides with a second low friction cart. Cart A has a mass of 0.500 kg and cart B has a mass of 0.750 kg. Glider A was moving at 40.0 cm/s before the collision. Glider B was at rest. (a) The

*asked by Daniel on November 23, 2015* -
## physics

When an immersion glass thermometer is used to measure the temperature of a liquid, the temperature reading will be affected by an error due to heat transfer between the liquid and the thermometer. Suppose you want to measure the temperature of 7 mL of

*asked by tienking on December 10, 2011* -
## Math

The formula s = the square root of 18d can be used to fnd the speed s of a car in miles per hour when the car needs d feet to come to a complete stop after slamming on the brakes. If it took a car 12 feet to come to a complete stop after slamming on the

*asked by Jordan on September 27, 2012* -
## Algebra

Use the quadratic formula to solve the equation. Give exact answers: 2x^2 -1 = 6x. The choices are: a) -3 + square root(7)/2, -3 - square root(7)/2 b) 3 + square root(11)/2, 3 - square root(11)/2 c) 3 + square root(7)/2, 3 - square root(7)/2 d) -3 + square

*asked by Hope on June 3, 2009* -
## pre-algebra

Can you help me figure this? The area of a rectangle is 14 square meters. Find the length and width of the rectangle if it's length is 5 meters greater than its width. Use an equation and the formula for the area of a rectangle=(width)(length). Thank you.

*asked by shyloh on December 15, 2011* -
## 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

*asked by Mandy on November 11, 2009* -
## Math

Find the surface area of rectangular pyramids 1. Length= 1.15ft Width=0.82 ft Height of the slanted face =3.17ft Surface Area=7.1879ft^2 Formula for Rectangular Pyramid Surface Area : B+1/2pl B=area of base p=perimeter of base l=height of slanted face

*asked by Jerald on February 5, 2014* -
## math

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

*asked by Mandy on November 11, 2009* -
## Math

The formula W = 35.74 + 0.6215T - 35.75V^4/25 + 0.4275TV^4/25 relates the wind chill temperature W to the air temperature T in degrees Fahrenheit and the wind speed V in miles per hour. Use a calculator to find the wind chill to the nearest degree when the

*asked by Anonymous on January 12, 2015* -
## chemisty

Posted by STACY on Monday, December 13, 2010 at 7:56pm. Consider an aqueous solution prepared from 250.0 mL of water and 1.27 g of potassium bromide. Express the amount of potassium bromide in this solution in terms of (a) mass percent (b) mole fraction

*asked by STACY on December 14, 2010* -
## algebra

The perimeter of the state of Wyoming is 1280mi. The width is 90mi less than the lenght. Find the width and the length. I don't know what formula to use or how to write it. Perimeter = length + length + width + width = 1280 miles OR P = 2L + 2W = 1280

*asked by summer on September 19, 2006* -
## Calculus

Estimate delta(x) using the Linear Approximation and use a calculator to compute both the error and the percentage error. f(x)=cosx a=(pi/4) delta(x)=.06 delta(x)= ______ i got this part and it's -.04242 The error in Linear Approximation is: and The error

*asked by Anonymous on October 13, 2007* -
## Chemistry

Hank Hill loves everything about gas propane, C3H8. One day his son Bobby asks him the following set of questions about propane. Hank hems and haws for a few moments and finally tells his son he'll get back to him with answers but he has to mow the lawn

*asked by Anonymous on May 9, 2011* -
## Work energy

Question Details Three masses m1= 5.0 kg ; m2= 10.0 kg ; m1= 15.0 kg are attached by a strings over frictionless pulleys. The horizontal surface exerts a force of friction of 30N on m2. If the system is released from rest, use energy concepts to find the

*asked by Harry on November 19, 2006* -
## Physics

A block M1 of mass 20.0 kg sits on top of a larger block M2 of mass 30.0 kg which sits on a flat surface. The kinetic friction coefficient between the upper and lower block is 0.415. The kinetic friction coefficient between the lower block and the flat

*asked by Marty on October 2, 2015* -
## Physics

A solid disk of mass m1 = 9.4 kg and radius R = 0.25 m is rotating with a constant angular velocity of ω = 36 rad/s. A thin rectangular rod with mass m2 = 3.1 kg and length L = 2R = 0.5 m begins at rest above the disk and is dropped on the disk where it

*asked by MUHAMMAD JUNAID on April 21, 2019* -
## computers

TMA1PHY111 ( 1.) A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is not true?< (A) The passenger is in motion relative to the passer-by (B) The passer-by is

*asked by lawrence on October 12, 2011* -
## algebra homework

Kim starts to walk 3 mi to school at 7:30 A.M. with a temperature of 0°F. Her brother Bryan starts at 7:50 A.M. on his bicycle, traveling 10 mph faster than Kim. If they get to school at the same time, then how fast is each one traveling? I have tried to

*asked by paulina on September 10, 2010* -
## phsycis

consider the vector F1: (27N,20°)The angles are measured from the positive x axis with the counter-clockwise angular direction taken as positive. Consider the vector:F2=-F1 What is in degrees as measured from the positive x in the counter-clockwise

*asked by Christie on August 31, 2014* -
## Helpppp Math!!!

The market value (in thousands of dollars)of a certain home is a linear function of t, the time in years since 1990. In 1992 the market value was 68 thousand dollars, while in 1997 the market value was 79 thousand dollars -Find the slope of V as a linear

*asked by Kim on April 29, 2014*

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