Thursday

April 24, 2014

April 24, 2014

Total # Posts: 1,087

**Quantitative Methods**

1. Management of Sundown Rent-a-Car (see Problem 8-8) has decided that perhaps the cost during the six-month period is not the appropriate Cost to minimize because the agency may still be obligated to additional months on some leases after that time. For example, if Sundown ha...

**Chemistry**

The chemical reaction for the generation of gas in an automobile safety air bag is 2NaN3(s)→ 2Na(s)+3N2(g) What volume of gas is produced if there are 130.0 grams of NaN3 used in the reaction? (The density of nitrogen gas is 0.916 g/L.) Please show your work.

**Chemistry**

The chemical reaction of 100 g of salicylic acid, C7H6O3, with excess acetic anhydride produces 50.0 g of aspirin, C9H8O4, according to the equation. What is the percentage yield for the reaction shown below? Please show your work. C7H6O3+C4H6O3→C9H8O4+C2H4O2

**algebra**

Jeremy had 36 community concert tickets to sell. He sold 2 and 3 and a third of the tickets did jeremy sell

**Calculus**

The vertical position of an object is modeled by the function h(t)=-16t^2 +5t+7, where h is measured in feet and t is measured in seconds. Find the object's initial velocity (that is, the velocity at t=0). Is it 5 feet per second?

**English Literature**

comparing the way he feels to being sharper than a serpent's tooth?

**English Literature**

"sharper than a serpent's…" repeats the 's' sound?

**English Literature**

Or maybe imagery?

**English Literature**

I have a feeling it's either metaphor or alliteration, but I'm not sure.

**English Literature**

To laughter and contempt; that she may feel How sharper than a serpent's tooth it is To have a thankless child! Away, away! The dominant figure of speech in this passage is: A) alliteration B) assonance C) simile D) metaphor E) imagery

**social studies(updated answers)---Mrs.Sue**

6.C 6.How did European rule in South America change the people of the continent? A. European missionaries introduced religion. B. European colonists brought diseases that killed millions of natives. C. European conquistadors incited conflict on the continent. D. European lando...

**social studies(updated answers)---Mrs.Sue**

1.A 2.C 3.A 6.D 9.B 1. why do most people live in the western part of colombia? A. to enjoy the cooler climate of the mountains B. to be closer to the border with venezuela C. to live along the pacific coast D. to benefit from the country's lush rain forests 2. what are th...

**social studies**

1.D 2.B 3.B 4.A 5.C 6.A 7.D 8.B 9.B 10.C 1. why do most people live in the western part of colombia? A. to enjoy the cooler climate of the mountains B. to be closer to the border with venezuela C. to live along the pacific coast D. to benefit from the country's lush rain f...

**Language Art help**

How does the great radio scare help you gain an understanding of past events? A.it tells why people are afraid of things they dont understand B.it tells of a radio broadcast that sounded so real people believed it was true C.it tells of an event that led to changes in what peo...

**health(MS.SUE)**

1.D 2.A 3.D 4.B 5.C 6.C 7.B 8.A 9.D 10.D 11.B 12.A 1. Joey lifts a heavy backpack off the ground.as he lifts the backpack,he keeps his legs straight and uses his biceps and back muscles to lift.in your analysis of joeys's form,you conclude he needs to use his A. arm muscle...

**health**

1.D 2.A 3.D 4.B 5.C 6.C 7.B 8.A 9.D 10.D 11.B 12.A 1. Joey lifts a heavy backpack off the ground.as he lifts the backpack,he keeps his legs straight and uses his biceps and back muscles to lift.in your analysis of joeys's form,you conclude he needs to use his A. arm muscle...

**SocialS..**

Hello everyone i only have one question today that im curious about. Thanks Which industry provides the most benefits for the environment? A.Cattle ranching B.ecotourism C.tourism D.large-scale farming

**Environmental Science**

On Earth in the extreme northern and southern latitudes, how does the relationship between GPP and NPP change during an entire year’s time?

**History **

In January 1917, President Wilson outlined a "new world order" in which: a. freedom of the seas should be reevaluated as a vital American policy. b. the League of Nations should be replaced by the United Nations. c. self-determination would be the foundation of worl...

**math**

Normally the variable will go on the right side of the number. Despite this fact, 6z and z6 are the same. For example if z= 2 ; then 6z=6(2)=12 or z6 =2(6)=12

**Statistics**

.0051

**Advanced Math**

In a game you flip a coin twice, and record the number of heads that occur. You get 10 points for 2 heads, zero points for 1 head, and 5 points for no heads. What is the expected value for the number of points you’ll win per turn?

**physics**

A 78.0 kg person is being pulled away from a burning building as shown in Figure 4.27. Calculate the tension in the first rope, T1, if the person is momentarily motionless.

**physics**

Two teams of nine members each engage in a tug of war. The first team's members have average masses of 64 kg and exert average forces of 1350 N horizontally. The second team's members have average masses of 69 kg and exert average forces of 1371 N horizontally. (a) Wha...

**Why was my ? deleted**

I guess it is a bit annoying to me when I see people post like an entire exam and ask for answers. I'm also doing this course, and I get the need for help, but I am here studying, trying really hard to read and find the answers myself, while some people have the nerve to a...

**math**

Ellen works for a high-speed rail company that wants to develop a new rail line. Ellen’s project is to find a train that is the second fastest in the world. The Shinkansen Bullet Train in Japan is reported to go as fast as 320 kilometers per hour. The TGV train in France ...

**Environmental Science**

A nuclear burning power plant produces a total power of 1.1kW. It serves a community that requires 2.85 x 107 kJ of power over the entire year. How many days per year does the power plant need to operate to provide all this power? 300 days 250 days 365 days 200 days 150 days

**Science**

Which of the following ets of terms could be used in a deseription of the peripheral nervous system?

**science**

I need the definition of an observation that use color, shape, texture, smell, taste

**Social studies**

Which of the following be explains why a species of lizards is able to live in the desert but not in a tundra regions?

**Science**

For lunch, Jane Doe consumed the following: a turkey sandwich on whole wheat bread with mayonnaise, lettuce, and tomato; potato chips; and apple juice. 1.Trace the path of digestion through Jane from beginning to end. Include the nutrients the food contained and are broken dow...

**algebra**

Sophie bought a total of 27 guppies and angel fish. She bought twice as many guppies as angel fish. How many of each kind of fish did Sophie purchase?

**Applied Physics**

When a 3600 lb automobile runs out of gas, it is pushed by its unhappy driver and a friend a quarter of a mile (0.250 mi). To keep the car rolling, they must exert a constant force of 175 lb. (a.) How much work do they do? (b.) If it takes them 15 minutes, how much power do th...

**algebra 1**

The length of the base of a isosceles triangle is one forth the length of one of its legs. If the premimeter of the triangle is 16 inches, what is the length of the base.

**ALGEBRA 1**

You practice playing your guitar every day. You spend 15 minutes practicing chords and the rest of the time practicing a new song. So the total number of minutes y you practice for the week is given by y=7(15+x), where x is the number of minutes you spend on practicing a new ...

**Algebra 1**

Tall Buildings You made a model of the Space Needle in Seattle, Washington, for a report on architecture in the United States. You used a scale of 1 in.:50 ft. Your model is 12.1 inches tall. Estimate the actual height of the Space Needle. Is it 605

**Algebra 1**

A music downloading website reports that nearly 5 out of every 7 songs downloaded are classiﬁed as pop music. According to this information, predict how many of the next 500 songs downloaded will be pop songs. Round your answer to the nearest whole number. Is the answer...

**math 5th grade**

What is 59,424.77 rounded to the nearest square mile

**Sociology**

D) children raised in isolation

**Chemistry**

In a reaction between pure acetic acid and sodium bicarbonate, 14.7 grams of sodium bicarbonate was added to 21.0 mL of acetic acid. Which reactant is the limiting reactant in this reaction? Name of limiting reactant (acetic acid or sodium bicarbonate): How many moles of the l...

**French**

The question is: Remplace par un pronom: Est-ce qu'ils prendront beaucoup de temps? No part of the sentence is highlighted or bolded, and I honestly have no idea where to even start. Any help would be greatly appreciated. Thank you!

**science**

The pilot of an airplane traveling 180km/h wants to drop supplies to flood victims isolated on a patch of land 160m below. The supplies should be dropped how many seconds before the plane is directly overhead?

**math**

gbjgv

**math**

gbjgv

**math**

what is the answer to 7 8/15-2 2/6

**com**

A word's denotation is its ________

**Chemistry**

Which of the following statements is incorrect concerning the thermochemical equation below? 2SO3(g) 2SO2(g) + O2(g); H° = 198 kJ a. The enthalpy of the reactants exceeds that of the products. b. The reaction is endothermic. c. For the reaction 2SO2(g) + O...

**Chemistry**

H2 and F2 react according to the following equation, forming HF. H2(g) + F2(g) 2HF(g); H° = –271 kJ If H2(g) and F2(g) were mixed in a thermally insulated vessel, the reaction that occurred would be a. endothermic, and the temperature of the reaction ...

**Chemistry**

Bulb A is 100mL and contains Helium at 1atm. Bulb B is 500ml and contains Argon at 2atm The bulbs are connected together by a valve. (assume constant tempreature). What is the mole fraction of Argon in the opened system?

**Chemistry**

Would the total pressure be 2.19985 atm? Could you possibly help me with this one?

**Chemistry**

Bulb A is 100mL and contains Helium at 1atm. Bulb B is 500ml and contains Argon at 2atm The bulbs are connected together by a valve. (assume constant temperature). What is the total pressure of the system after the valves are opened?

**physics**

What is the electric field intensity produced by a charge at 10 meters, where the electric potential is 1.44 volts?

**Physics**

A disk in your computer spins at 5400 rpm. If this disk turns through 12 revolutions before coming to stop, find the disks angular velocity acceleration. Also find the time it takes to stop.

**physics**

How will changing charge change the equipotential at a distance of 2 meters? I honestly just don't even know where to start with this. If someone could at least point me in the right direction, that would be great!

**trig**

quadrant 1

**Science**

How do i calculate this? 5 ml of 0.1% (w/v) AgNO3 2 L of 1% (w/v) NaCl

**math**

Vance wants to fence in a rectangular area for his dog. He wants the length of the rectangle to be at least 30 feet and the perimeter to be no more than 150 feet.

**Math**

Tony wants to plant at least 40 acres of corn and at least 50 acres of soybeans. He wants no more than 200 acres of corn and soybeans. Show and describe all the possible combination's of the number of acres of corn and of soybeans Tony could plant. List two possible combin...

**Math**

Tony wants to plant at least 40 acres of corn and at least 50 acres of soybeans. He wants no more than 200 acres of corn and soybeans. Show and describe all the possible combination's of the number of acres of corn and of soybeans Tony could plant. List two possible combin...

**Math**

Linda works at a pharmacy for $15 an hour. She also babysits for $10 an hour. Linda needs to earn at least $90 per week, but she does not want to work more than 20 hours per week. Show and describe the number of hours Linda could work at each job to meet her goals. List two po...

**stats**

The percent of fat calories that a person that in America consumes each day is normallydistributed with a mean of 36 and a standard deviation of 10. Suppose that 16 individuals are randomly chosen for an experiment. 1. Completely describe the distribution of sample means for t...

**Stats**

1. If you were to receive $3 for every time a 7 or 11 was rolled with two fair dice and lost $1 for all the ther values, what is the expected value (mean) for you as a gambler in this experiment? (please show work so I know how to do it). 2. Going with the question above, woul...

**Right angle trigonometry**

A sailor sights both the bottom and top of a lighthouse that is 20 and m high and which stands on the edge of a cliff. The two angles of elevation are 3 and 42. To the nearest meter, how far is the boat from the cliff?

**6th grade Math**

i can't figure out this problem 12 and 1/2 as a percentage... i need help

**Math**

Roulette is a well known game in which a mechanical device randomly selects one of 38 equally likely numbers. IF a player decides to play by choosing a number, he gains $35 if his number is selected by the device. If any other number is selceted he loses $1. Calculate the expe...

**Math**

if the last digit of a weight measurement is equally likely to be any of the digits 0 through to 9.what is the probability that the last digit is greater than or equal to 5 ?

**POLITICAL SCIENCE**

describe the European origins of American conservative and liberal ideologies. Then, explain how these two American ideologies have evolved from their European origins, and the key features of each American ideology today. Do “Tea Party” beliefs neatly fit in a conse...

**AP Chemistry**

What mass in grams of sodium hydroxide is produced if 20.0 g of sodium metal reacts with excess water according to the chemical equation? 2Na(s)+2H20(l)=2NaOH(aq)+Hs(g) How many moles of Ag can be produced if 350. g of Cu are reacted with excess AgNO3 according to the equatio...

**Math**

67

**Science**

How do you do a Leg table in science?

**5th grade math (word problems)**

1. This one is ok. 2. The coffe cups should be divided by 8. If you were to make a drink for the club you would certainly have a drink. The answer is 30/8= 3.75; then you would multiply 8 * 3= 24; then you would subtract 30-24 you you would have 6 cups left.

**5th grade math (word problems)**

1. This one is ok. 2. The coffe cups should be divided by 8. If you were to make a drink for the club you would certainly have a drink. The answer is 30/8= 3.75; then you would multiply 8 * 3= 24; then you would subtract 30-24 you you would have 6 cups left.

**Lang. Arts**

Ther is non. B. is an interrupter.

**Math**

Graph 4x2 + y2 = 9. What are its lines of symmetry?

**Psychology**

Nothing. Some kids will choose not to let Mom or dad read to them. Some may take the opportunity and run with it. Reading to them does give them a better chance, but not a garnented chance of being able to read faster. The point is if you just read it's a story, but if you...

**Physics**

A 200-pound boy lifts a 40-kilogram box off of the floor 1.3 meters in 0.7 seconds. His brother lifts a 48-kilogram box off the floor 0.9 meters in 0.6 seconds. Which boy is more powerful? Explain.

**science**

a river does 6500J of work on a water wheel every second.The wheels efficiency is 12 percent.A)How much work in joules can the axle of the wheel do in a second? B)What is the power output of the wheel?

**fractions**

Adam can make the common denominator 12 because 6 and 3 go into it evenly. Then do 1/6x2=2/12 then you do 1/3x4=4/12!!!

**physics**

oh no sorry nevermind it would be 2:1.. got it. Thanks man

**physics**

so is it a 1:2 ratio then? I have the options of 1:2 , 2:1, 1:3, and 3:1 on my homework. thanks for answering

**physics**

A proton and an electron enter perpendicular to the direction of the magnetic field. The speed of the proton is twice the speed of the electron. What is the ratio of the force experienced by the proton to the electron?

**physics**

Can someone please explain to me why or how this statement is true? I don't understand it.. Two events that are simultaneous in one inertial frame of reference will not necessarily be simultaneous in any other inertial frame of reference. Thank you

**physics**

ultra violet light

**Statistics**

If the probability of a newborn child being female is 0.5, find the probability that in 100 births, 55 or more will be female. Use the normal distribution to approximate the binomial distribution.

**west chester university **

A ball is thrown vertically upward, which is the positive direction. A little later it returns to its point of release. The ball is in the air for a total time of 8.26 s. What is its initial velocity? Neglect air resistance.

**math**

Carlos will use square floor tile that measure one foot on each side to cover a hallway that is eight feet long and four feet wide.how many floor tile will carlos need

**Science**

In lab the other day we did an acid/base extraction to separate mixtures. The top layer of the mixture is the organic layer, which consists of diethyl ether and fluorine. The bottom layer is considered to be the aqueous layer, which consists of water and benzoate anion. The di...

**physics**

Bert is standing on a ladder picking apples in his father's orchard. As he pulls each apple off the tree, he tosses it into a basket that sits on the ground 2.5 m below at a horizontal distance of 1.9 m from Bert. How fast must Bert throw the apples (horizontally) in order...

**geometry**

The price is$23

**algebra**

CA? me too :) b careful what u post and make sure u dont put ur name bc getting caught will lead to an automatic 0 on the quiz

**math**

Write a sequence of transformations that maps triangle ABC onto triangle A''B''C''. --------------------------------------… A in ABC is 1,9, B in ABC is 3,12, and C in ABC is 4,4. A'' in A''B''C'' is 3,-3, B''...

**Chemistry**

Adding 1.530x10^3 J of electrical energy to a constant-pressure calorimeter changes the water temperature from 20.50C to 21.85C. When 1.75g of a solid salt is dissolved in the water, the temperature falls from 21.85C to 21.44C. Find the value of qp for the solution process.

**Physics **

A hotair balloonist, rising vertically with a constant speed of 5.00 m/s, releases a sadndbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. a. compute the position and velocity of the sandbag at .25...

**Physics **

A hotair balloonist, rising vertically with a constant speed of 5.00 m/s, releases a sadndbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. a. compute the position and velocity of the sandbag at .25...

**Physics**

Okay. Thank you for your help

**Physics**

During 200 meter and 400 meter races, runners must stay in lanes as they go around a curved part of the track. If runners in two different lanes have exactly the same speed, will they also have exactly the same centripetal acceleration as they go around a curve? Explain.

**Chemistry**

How many types of stoichiometry are there? Can you list them? Thanks I appreciate it!

**Chemistry**

A sample of gas occupies 24.5 L at a pressure of 1.57 atm; what is the pressure if the volume is increased to 48.3 L?

**QUESTION**

can you please describe the chinese new year? and how its celebrated?

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