julia

This page lists questions and answers that were posted by visitors named julia.

Questions

The following questions were asked by visitors named julia.

3x+y=-4 x=3-3y y=2x x+2y=-4 You have written four equations in two unknowns. There is no x,y combination that satisfies all of them. What is your question?

180 ml of a mixture of water and alcohol with 90% alcohol concentration is mixed with 70 ml of pure water. what is the alcohol concentration of the new mixture? Do the following: 1) Find out how many ml of alcohol was in the first mixture. (What is 90% of...

Why do the control mechanisms have several intergation centers? Julia, did you mean integration or interrogation? The control systems are not simple, they are multilayered, multistepped, and operate by releasing hormones, enzymes, and bioactive substances...

what is the radius of a circle using center and radius

You drop a stone from the top of a cliff that is 20 meters tall. Compute how long it will take for the stone to reach the bottom using various different choices for your coordinate system.

a car is travelling along a cruve having radius of curvature of 80.0 m, banked at an angle of theta=30. The coeff of static friction of ice is 0.05. What is: a) the slowest speed the car can negotiate the banked curve with? b) what is the fastest speed? f...

i know how to do it, i keep getting the wrong answer!! a bob of mass 4.00 kg is suspended from a fixed point by a massless string of length 1.50 m. The bob moves in a horizontal circle with the string always making an angle theta=22 from the vertical. wha...

where can i get a big list and descirptions of scientists who were involved with scientific fraud? i tried google without much success...

Any advice on how to figure out solubillty of Agno3?

A 20 kg child on roller skates, initially at rest, rolls 4 m down an incline at an angle of 30 degrees with the horizontal. If there is no friction between incline and skates, what is the kenetic energy of the child at the bottom of the incline? (g= 9.81...

Can someone show me step by step how to work this problem out please. Let C be the triangle with vertices (0,0), (1,0), and (1,2). Find the following line integral by two methods, directly and using greens theorem. 2xy^2dx + yx^2dy Thanks!!!

if u jump onto the floor, are you more likely to be hurt if your legs are relaxed or if your legs are stiff and your knees are locked? explain....plz help =)

A 0.15 kg baseball moving at +26 m/s is slowed to a stop by a catcher who exerts a constant force of -390 N. How long does it take this force to stop the ball? How far does the ball travel before stopping? plz plz plz help!!

In a collision between two soccer balls, momentum is conserved. Is momentum conserved for each soccer ball? explian... plz =)

what is the formula for finding the decrease in kenetic energy

At the equivalence point for CH3COOH, the pH will be?

What are the long term effects of tornadoes?

2*cos^2(a/2)=(sin^2(a))/(1-cos(a)) can anyone help to prove this identity?

x + y + z when x = -6.059; y= 3.884, z = 15.710 2. -19 -(-2.65)

I need help how to figure out 2a-6c when a = -1/3 and c = 3/4

please help--I don't understand how to get started! A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm = 10^-9 m) . The nanofiber is attached to a substrate (an immovable wall). The plot is a...

Is this true or a trick question? In order to get a piano to start moving, you must push against it with a larger force than it pushes on you?

Momentum is conserved whenever total mechanical energy is conserved. I believe this is false. Am I correct?

One glider with a mass 0.2 kg and a speed of 3.5 m/s traveling east collides with another glider with mass 0.5 kg and a speed of 2.0 m/s moving west. They collide and stick together. Calculate the net mechanical energy and is it a loss or gain?

how do I solve : 1/2 + 2/x =3/4. thanks for helping!

to subtract two decimals, line them up using the ?

How many moles of SO2 are required to make 125 mol CS2 How many moles of carbon monoxide form at the same time that 0.255 mol CS2 forms? THANK YOU

Make a list of expressions that are followed by the '-ing' form

i need an essay in italian about the shopping mania.please help me

someone can help me with a discription with this KEY WORDS: advertising billboards, buskers, clowns, drama groups, fireworks, graffiti, 'live statues', musicians, open-air concerts, pavement artists, sculptures, statues.

disolving sucrose, NaCl< and calcium chloried affect the boiling point of frezing point of water. Assuming that you have 0.1m solution of all these 3 compounds: a)rank then in order of decreasing freezing point. b) rank in order of increasing boiling poin...

calculate the molality of a solution that has 1.02kg sucrose (C12H22O11), dissolved in 554g water.

how does the integral of cscx = ln|cscx - cotx|+C and ln |tan x/2|+C?

in the following total ionic equation, which ions are spectator ions? Cu2+ (aq) + 2NO3-(aq)+2Na+(aq)+S2-(aq)--->CuS(s)+2NO3-(aq)+2Na+(aq)

suppose you had an unknown solution that contained either dissolved NaOH, NaCl< or NaNO3. you add 4 drops of AgNO3 solution to 4drops of the unknown solution and observed that no solid formed. What can be concluded the unknown solution? why?

AgNO3+NaOH-->AgOH+NaNO3 give me molecular , total ionic and net ionic???"

supose 1.25 mol of N2 and 50.0g of O2 are moxied together. a)which one is the limiting reactant? b) what is the maximum mass in grams of NO2 that can be produced from the mixture? N2(g) + 2O2(g)=2NO2(g) ***please just show me how to set up the equations I...

for a combination reaction, it was calculated that 7.59g of A would exactly react with 4.88g of B. these amounts were reacted, and 9.04g of product was isolated. what was the percentage yield of reaction??

Thank you, you don't know how much you have help me with my chem class...thank you so much..your the best!!

Liquid water has a density of 1.00g/mL at 10.0C and .996g/mL at 30.0C. Calculate the change in volume that occurs when 500mL of water is heated from 10.0C to 30.0C.

at 50.0C the balloon ha a vlomue of 1.78L. Calculate the carbon dioxide density at this temperature.

well it saids: A 1.50L rubber balloon is filled with carbon dioxide gas at a temperature of 0.00C and a pressure of 1.00 atm. the density of the carbon dioxide gas under these conditions is 1.98g/L. a)at 50.0C the balloon ha a vlomue of 1.78L. Calculate t...

when an aqueous solution BaCl2 is mixied with an aqueois solution of Na2CO3, solid barium carbonate precipitates out of solution. write molecular equation, complete ionic equattionand net equation. is this the right formula?? BaCl2(aq)+Na2CO3(s)=BaCO3(s)?...

consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 ar...

2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the % yield of nitrogn gas?? ple...

air bags actived when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. this causes NaN3 to decompose explosively according to the following reaction: 2NaN3(s)=2Na(s)+3N2(g) what mas of NaN3 must be reacted...

nitrogen gas contained in a cylinder with a volume of 5.0x10^2 mL @ a temp of 30C and pressure of 710 torr. The gas is then compresse to a volume of 25mL and the temp. is reaised to 820C. what is the new pressure of the nitrogen gas?? Pf=p1*v1*t1/Tf*Vf P=...

A )Completare le farsi con il pronome personale opportune e con le desinenze del participio passato. 1-ALESSIA HA VINTO IL PRIMO PREMIO? ____GLI________ TELEFONO SUBITO E ____GLI _____DICO , SARA FELICISSIMA. 2- DEI COMPAGNI DI CLASSE HO RIVIST_O__SOLTANT...

Factor x2 - 100

what is the volume occupied by 16.0g ethane gas (C2H6) at 720 Torr and 18C? V=nRT/P conversion of mol: 16.0g C2H6 X 1mol C2H6/30.07g C2H6= .53mol C2H6 V= .53 mol(0.0821 L*atm/mol*K)(291)K / 720 Torr (1 atm/760Torr) V= 13.5 L

A 20.5 lb cast iron boat anchor displaces 1.33 qt of water when submerged. What is the density of the cast iron, in g/cm3? 1L=1.057 qt 1kg=2.205lb 1lb=453.6g 20.5lb X 453.6g/ 1lb = 9298.9g 1.33qt X 1L/1.057qt = 1.26L 1.26L X 1000cm3/1L = 1260cm3 9298.9g/1...

23. A 32.3 L sample of a gas at 305oC and 1.20 atm is to be cooled at constant pressure until its volume becomes 28.4L. What will be the new gas temperature? Tf = Vf*Ti/Vi Tf =28.4L x (305+273)K / 32.3L = (28.4)(578)K / 32.3 = 16415.2/32.3 Tf = 508K I got...

u/5=1.9 what is u

In bengal, india and Bangladashthere are about 2.6*10 to the power of 8. What is 2.6*10 to the power of 8 ?

what is 3*10^6=

what is 6*10^9=

Roxanne is making a strawberry milkshake in her blender. A tiny .0050-kg strawberry is rapidly spun aroundhe inside of the container with a speed of 14.0 m/s, held by a force of 10.0N. What is the radius of the blender at this location?

what is a related noun? mom and i are stuck.

Find the sum of the series 2 + 9/2! + 27/3! + 81/4! . . .

design an expirament to test if the price of the gasoline affects the mileage in my car. find the dependent variable.

Is volume the amount of space an object takes up?

a load p is supported by a steel pin that has been inserted in a short wooden member hanging from the ceiling. the ultimate strength of the wood used is 60 MPa in tension and 7.5 MPa in shear, while the ultimate strength of the steel is 145 MPa in shear....

a load P is supported

A particle starts from the origin at t = 0 with an initial velocity of 5.5 m/s along the positive x axis.If the acceleration is (-2.8i + 4.1jm/s^2, determine (a)the velocity and (b)position of the particle at the moment it reaches its maximum x coordinate...

Vin paid $60 for 4 new DVDs. His friend Samuel paid $78 for 6 new DVDs. Who got a better deal?

rewrite these sentences into reported speech. 1-where did you get these dress? 2-who did these dress belong to? 3-where do you buy your clothes? 4-how long have you been collecting these clothes? 5-what will you wear at the party? 6-why are you decorating...

i am having trouble with two digit dividends. here is an example 34 divided 264

prove (3x^2 + 4x-1)/(7x^5+5)>0 is field. can you just prove one of the addition axioms?

the nervous system is comprised of what 2 Tissue types?

solar flares containing hot gases can rise to 120000 miles above the surface of the sun. What is the distance in kilometers? how do i set this up??

when a cross tile is placed on a number plane the centre number is the average of al the numbers covered. Explain why

suppose 25 bacteria settle into a cut on.your arem and begin to double.every thirty minutes. creste s table where x is the number of minutes and y is the number of bacteria

Although label choices vary for different printers, your textbook recommends __________ for laser and ink jet printers. A. Avery standard, 5160, Address B. Avery standard, 6150, Label C. Avery standard, 6150, Address D. Avery standard, 5160, Label I've lo...

A frictionless30degrees incline should provide an acceleration of 4.90m/s2 down the incline. A student with a stopwatch finds that an object, starting from rest, slides down a 15m very smooth incline in exactly 3s. Is the incline frictionless?

how do you do the counting up method

Answers

The following answers were posted by visitors named julia.

thank you so much!! it was so frustrating to get the wrong answer after wrong answer..

ok so the final answer is 1/2 e^y^2????

i agree, it's spry.

i need help like for you to show the work so i can figure it out i know how to replace the letters with the fractions but i don't know how to figure it out past there.

How do I calculate the momentum?

sorry i don't get can u explain more clearly pls.

i don't want it from internet but self made

ok thanks anyway !!

Thank you Drbo22...but if it dosent make sence I'm sorry but that's what the tearche wrote in the paper he gave us...

Thank you, you don't know how much you have help me with my chem class...thank you so much..your the best!!

well it saids: A 1.50L rubber balloon is filled with carbon dioxide gas at a temperature of 0.00C and a pressure of 1.00 atm. the density of the carbon dioxide gas under these conditions is 1.98g/L. a)at 50.0C the balloon ha a vlomue of 1.78L. Calculate t...

but i get 502.o and the answer in the back of my book said 2mL....so..

omg...I was wondering where u...I'm studying for a test for weds and I'm so lost with most of this...thank u for your help...

thank u so much...

ok..I see what i did wrong...thank u..ur the best!!!

thank you for all your help Drbob222...just whish me luck for tomorrow in my test... :)

thank you so much....your good, I wish you be my teacher I be passing my class with no problem....

I guess I need to figure out the s.f. or stop rounding numbers.... :( thank you...

is that the answer?

firt grade, a diamante, noun, then two adjectives, then verbs ending in ed or ing, then related nouns, then more ing/ed verbs, adjectives, then noun.

i don't understand the last step. how did you get to -1 + e^3 -1 = -2 + e^3

can you explain how you got both answers?

bouyant force i think.

12a+45=90 -45=90 ---------- 12a=45 --- -- 12 12 a=45\12

rewrite it as an addition problem. -4.8 + 4.9 = what? And then add 5.7 to your answer of -4.8 + 4.9 and that would be your answer.

4 you don't count the end ones unless there is a decimal point

If the scuba diver is looking from the water n=1.33 and the other man is above water so n=1, use the equation n1sin(theta)=n2sin(theta). 1.33sin(20)=1sin(theta) 27.06 degrees is the answer, but since it says from the horizontal do 90-27.06

Find the other end point of the line segment with the given endpoint and midpoint. Endpoint; (-4,-4),(midpoint:(7,3)

1A. 12.99*5%=12.99*.05=0.65 this is the sale tax 12.99 + 0.65= 13.64 is the price after tax 1B. 12.99*20%=12.99*0.2=$2.6 is discount 12.99 - discount= 12.99 - 2.6=10.39 is the price after discount was applied 10.39*5%=10.4*0.05=0.52 is the tax 10.39+.52=$...

2A. 329.00*15%= 329.00*0.15=$49.35 this is the discount. 329 - discount = 329 -49.35=$279.65 discounted price 2B. 329*10%=329*0.1=32.9 is how much more the ipad will cost compared to the old price (increase in price). Now add it to the old price: 329 + 32...

I believe first you need to add them 38+26=64, and then 10+54=64

1/6(8+t)^6+constant

I am not sure with one, m or n, is an input and which one is output. But I believe the following rule can work: To get n: 15-3, 10-2, 5-1, 0-0 . As you can see each time the number (3,2,1,0) that you have to subscribe to get n is getting smaller by one. (...

Sorry for misspells! Getting late!

I posted the answer in your latest question

Divide distance 4 1/2 by 1 1/2 you will get 3 (miles per hour). Please check exact math using the calculator but I believe it is right

I think margin of error is 0.08, because if 0.5-0.08=0.42 (or 42%) and 0.5-0.08=.58 (or 58%) so 0.08 works perfectly

You should first convert 1.4t into kg. Then from that number subscribe empty trailer's mass and you will get the answer

You start with 4 matches, then you add only three more to get another (attached to the fist one) square. Then each time to get one more square you add 3 more matches. Now, let x be a number of squares you can make from a given number of matches. Then 4+3*...

Did you provide the all information? Because all you can do with the given information is to plug P=4 into the equation and find x, but x is quantity of CD demanded. Consumer surplus is the difference between the max price a consumer willing to pay and th...

You should first convert 1.4t into kg. Then from that number subscribe empty trailer's mass and you will get the answer

The formula is y-y1= m*(x-x1) 1. Find the midpoint= [(x1-x2)/2, (y1-y2)/2] you will get (-4,-2) 2. Find slope m1= [2-(-6)]/[-7-(-1)]= 8/-6=-4/3 3. find the slope of the perpendicular line m1*m2=-1 -4/3*m2= -1 m2= 3/4 4. Plug in given points (-7,2) and (-1...

I posted the answer under your previous question.

"the area of the region under the graph" is an integral of f(x) from a to b, in your case from 4 to 10. ∫ f(x) from 4 to 10=∫ (10x-5)dx from 4 to 10. you just have to compute the integral and that will give you: 1/2*10x^2-5x evaluate it from 4 to 10 I hop...

Do you have any information about length of the sides maybe? By the way you do have information about at least one angle and it's 90 degrees (because triangle is a right one)

a flagpole casts a shadow 10 ft. long if a man 6 ft. tall casts a shadow 4 ft. long at the same time of day, how tall is the flagpole.

45 is the second answer to the second question.i don't know the first question

what i don't understand

lol, so immature

i believe that its D, because meat is more fatt-ning

lol wow same here i justjoined the ashworth family...

how do you get the 1135? I must not be calculating something correct

supposedly the answer to the second part of the question is y = −6.5×10−14 m any insight?

Why did the British see the Second Continental Congress as an "unlawful assembly"?

When children learning. Alphabet which do they recognize first. A.oc B.kc C.br D.te Answer This Question

Can you give me the answer. I have answer it almost in 1 week

8 cups of sugar is needed.

Just took the test the person was right

the probability of spinning an even number is 40 percent what is the probability of not spinning an even number in a decimal

what is 1/2 +1/4+1/4=?

Why do u multiply 1/10 ????

shouldn't it be a=-pi sin(pi t)-7+2pi then?

the fracion of cats is ...

"com" is with. thank youu

it’s ethanoic acid

how do i get the answer to $63 devided by $7 = $9

B.He calls Robert a scaredy-cat. D.the Wolf B.Robert's character is proof that determination can help overcome challenges. B."How dumb can you get!" said Robert. "A colossal waste of time if you ask me. So get going! Scram! Shoo!" C."There's an infinite n...

I don't have a clue

i dont understand the answer can you explain please?