JP

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

Questions

The following questions were asked by visitors named JP.

Carbonyl fluoride, COF2, is an important intermediate for organic fluorine compounds. It can be prepared by the following reaction: CO2(g) + CF4(g) <==> 2COF2(g) At 1000*C, K for this reaction is .50. What are the partial pressures of all the gases at equ...

The equilibrium constant Kc equals 5.90 for the reaction CH3COOH + C2H5OH <==> CH3COOC2H5 + H2O Find the molar concentrations of acetic acid, ethanol, ethyl acetate, and water at equilibrium when .10 M acetic acid and .20 M ethanol are allowed to equilibr...

I need help with a question to do with ratios and electron dot diagrams. Can anyone help me? PLEASE

The rotor is an amusement park ride where people stand against the inside of a cylinder. Once the cylinder is spinning fast enough, the floor drops out. A-What force keeps the people from falling out the bottowm of the ride? I think that it's the Normal f...

Question Details: A crate of mass1 on a frictionless inclined plane is attached to another crate, mass2 by a massless rope. The rope passes over an ideal pulley so the mass m2 is suspeneded in air. The plane is inclined at an angle 36.9. Use conservation...

1) Solve for x and check Radical (x^2-10x)=3i 2) Simplify (5+ Radical 2)/(5-Radical 2) 3)describe the nature of the roots x^2-x-6=0 x^2+4x+29=0 4) Solve for x and check Radical (x^2 +4x +44) +3=2x I got 7 and -5/3 as answers, was not sure though

A 0.370mol sample of a metal oxide (M2O3) weighs 55.4g. How many moles of O? How many grams of M? And what is the unknown element M?

Please help in unscrambling the following math vocabulary: TSREECVI DYNRCEIL YESHENOTUP Thanks!

The demand and supply curves for an import-competing industry in a country are given by: D = 500 – 10P, S = 100 + 10P. Similarly, the respective demand and supply curves of foreign country for this industry are given by D* = 400 – 10P, S* = 200 + 10P. a....

A 74 kg adult sits at one end of a 8.5 m long board. His 35 kg child sits on the other end.Where should the pivot be placed so that the board is balanced, ignoring the board's mass?

Why did New France have a hard time attracting settlers? (B) What economic activities were profitable in New France?

Delta Software is considering a new project whose data are shown below. The equipment that would be used has a 3-year tax life, after which it will be worthless, and it will be depreciated by the straight line method over 3 years. Revenues and other opera...

Maximize P = 16x + 80y subject to these constraints: 2x + 20y ≤ 430 4x + 70y ≤ 1400 8x + 30y ≤ 980 10x + 10y ≤ 1000 4x + 30y ≤ 700 x ≥ 0, y ≥ 0 Maximum value for P = ?. This value of P occurs when x = ? and y = ? If u1, u2, u3, u4, and u5 represent the sl...

Consider the evaporation of methanol at 25.0 c: CH3OH(l)-- CH3OH(g) I figured out that Delta G is 4.3 kJ. Find the Delta G at 25 C under the following conditions: Pressure of CH3OH= 157mmHg, 103mmHg, 14mmHg thanks! please explain

An antelope has traveled 1.60 km at avg speed of 67.0 km/h. The antelope speed during the first half of the distance is 88km/h. Find the antelope's avg speed during the second half of the run.

Stan takes a trip, driving with a constant velocity of 81.5 km/h to the north except for a 22 min rest stop. If Stan's avg velocity is 66.80 km/h to the north, how long does the trip take?

A tortoise can run at a speed of 20 cm/s and a hare can run exactly 20 times as fast. In a race, they both start at the same time but the hare stops to rest for 2.00 mins. The tortoise wins by 20.0 cm. How long does the race take? What is the length of th...

Highway speed limit increased from 55 mi/h to 65 mi/h, how much time is saved on a 435 mile trip if you travel at the new speed limit?

Car travels up hill at a constant speed of 50 km/h and returns down the hill at a constant speed of 65 km/h. Calculate the avg speed for the round trip in km/h.

The numerator of a fraction is two less than its denominator. When both numerator and denominator are increased by 3, the fraction is increased by 3/20. Find the original fraction. Explain your solution

A 2kg hallow sphere of a radius 6cm starts from rest and rolls without slipping down a 10 degree incline. if the length of the incline is 50cm then the velocity of the center of mass of the hallow sphere at the bottom of the incline is?

An airplane is flying horizontally with a constant velocity of 160 m/s at an altitude of 5100 m when it releases a package. a. How long does it take for the package to reach the ground? (Ignore air resistance.) b. What is the distance between the airplane...

One ship is 20 miles due North of another ship, and is sailing South at the rate of 10 miles per hour. The second ship sails West at the rate of 20 miles per hour. For how long will the ships continue to approach each other?

identify and explain at least one real-world application of mathematical concepts covered in the text, your job or daily life, for one of the following areas: business, health and wellness, science, sports, and environmental sustainability. Do you think i...

A solution is prepared by adding 1g of sugar mannitol (MW 182.2g/g-mole) in 100g of water at 20◦C. (a) Assuming that mannitol and water form an ideal solution, what is the equilibrium vapor pressure of solution? The vapor pressure of pure water is 17.54mm...

On a 100000 dollars mortgage loan for 10 years at 4.5% interest rate what would be the monthly payment (including principal)

Scenario: Write a program that will determine the average mark of each student. The average is dependent on the subjects which the student has completed. The minimum amount of subjects is eight, and the maximum amount of subjects is 12. When the program s...

What factors contributed to the expansion of railroads in the United States during the 19th century?

The force of gravity on an object on the surface of Mars is less than the force of gravity on an identical object on the surface of Earth. Which of the following explains why this is true?

1.In which temperature of water did the food coloring diffuse faster? 2.Using your knowledge of the motion of molecules, explain the results. I'm doing a discussion and I need help, can someone help me please and thank-you :)

please help me to revise this paragraph I’m contacting you about your recent email request for technical support on your cable internet service. Part of the problem we have in tech support is trying to figure out exactly what each customer’s specific prob...

please help me to revise this paragraph I’m fed up with the mistakes that our current accounting firm makes. I run a small construction company, and I don’t have time to double-check every bookkeeping entry and call the accountants a dozen times when they...

The pattern 234562345623456.... is continued to form a number with one hundred digits. What is the sum of all one hundred digits?

Mr and Mrs Boyden take their 3 children to a leisure park. They buy tickets for the whole family. The cost of an adult ticket is £6 more than the cost of a child ticket. The total cost of the 5 tickets is £82. Work out the cost of an adult ticket.

Think of three things you can see in the sky (nouns). Add two adjectives to each one. Use a thesaurus to help you if you are stuck. Make the words from noun phrases into sentences that use a metaphor. You should have at least three sentences. 1. Birds 2....

A bike costs £186. The price is to be reduced by 33 1/3% in a sale. A) calculate how much you would save by buying the bike in the sale. b) how much would you pay for the bike in the sale?

1+2= 5 3+ 4 = 11 5+6 = 17 7+8=? i think 23?

A group of 10 students are on a field trip when their bus breaks down 40 miles away from the school. A teacher takes 5 of them back to school in her car, travelling at an average speed of 40 miles per hour. The other 5 students start walking towards schoo...

Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what's behind the doors, opens another door, say No. 3, which has a goat. He...

If the speed of the skateboarder at point A is v=1.2m/s, what is her speed at point B? Assume that friction is negligible. Point A = 2.7 m. Point B = 1 m.

Answers

The following answers were posted by visitors named JP.

d/dx(4x^2+3x+xy)=d/dx(2) 8x+3+y+xy'=0 At x=2, y=-10, we get 16+3-10+2y'=0 Solving for y' yields y'(2)=-9/2. You are not suppose to plug in 2 for y. y(2)=-10 means that the function has a value of -10 when x=2.

the limit as x approaches 0 of (sinx/x) is 1. Hence, you need to get the given expression, sin3x/7x in the form sinu/u. Observe that sin3x/7x = (sin3x/3x)*(3x/7x)... multiply the numerator and denominator by 3x so we have the expression sinu/u. Thus, the...

Since the line is tangent at a point to the circle, then the point lies on the circle. Also, since you know the center, the radius is simply the distance between the points (0,0) and (3,4). a) So, radius=d=sqrt((3-0)^2+(4-0)^2)=5 b) x^2+y^2=25 c) Observe...

Take the derivative of both sides of the equation implicitly: d/dx(xy^3+xy)=d/dx(14) y^3+3xy^2*y'+y+xy'=0 At x=7, y=1. Thus, 1^3+3(7)(1^2)*y'+1+7y'=0 which yields y'=-2/28=-1/14 The slope of the tangent line is m which also is y'. Thus, you now have m=-1/...

2E-3= (19E-6)(2)(DeltaT) + (23E-6)(1)(DeltaT) Simplified equation: .002= (3.8E-5) (DeltaT) + (2.3E-5) (DeltaT) More simpllified: .002= (6.1E-5) (DeltaT) DeltaT= 32.7869 Answer: 32.7869 + 29 = 61.7869

im pretty sure its B

that is if you don't balance it

46 mins x 60 = 2,760 secs 2760 x .91 = 2511.6 meters 2511.6m / 1000 = 2.5116 Km

What convention in the Alphabetic Index tells you to look elsewhere before assigning a code?

A number written in scientific notation has to be between 1 and 10. The 10 to whatever power tells you whether to move the decimal point right or left depending on whether it is positive or negative. So for number one, the answer has to be 4. The actual n...

FOR THE 1ST THE ANSWER IS 154.1

the 2nd the answer is 159.95

why did you put square root of 10 in the denmntor? the formula is Ax1+by1+c/+squareroot of A^2+B^2 SUBSTITUTING THE X AND Y IT WILL YOU A REAL NUMBER -

n a recent study, males used a new weight-loss supplement, and all but of them experienced weight loss after two weeks. In the same study, females used the same supplement, and all but of them experienced weight loss after two weeks. Fill in the blanks of...

In a recent study, 25 males used a new weight-loss supplement, and all but 6 of them experienced weight loss after two weeks. In the same study, 100 females used the same supplement, and all but 31 of them experienced weight loss after two weeks. Fill in...

less negative and formal. thanks

more concise please

this link was literally no help you narc

I don't know the answers yet putting them later Use math papa equation solver!

Thank you so much. I asked one of my friends to explain it to me the other day but I was so confused. Thank you.

I've got the answer now

I think number 1 is physical and 2 is chemical.

Actually both are physical changes because in 1, there is no chemical change and in 2, it is a metallic bond which I think is a physical change.

1 all above 2 facial expressions and body movement 3 I SICK shake head from side to side 4 raising your eyebrows