Margaret

HELP! I need to do a science project this year and have no clue what to do. The project has to follow the scientific method. Please give me some good ideas! I don't care what subject, as long as they're scientific. Thanks http://www.google.com/search?as_q...

19 years ago

correct this sentence comparatively please He responded to the interviewer as candidly as Tom. correct this sentence comparatively please He responded to the interviewer as candidly as Tom. <b>Comparative is "more candidly" -- now rewrite the sentence. =)...

19 years ago

In using comparisons, please correct this sentence. People who live in insulated homes pay less for their heating than homes that do not. Thanks. Let us know what YOU think, and someone will give you feedback. =)

19 years ago

I just want to see if these are correct. Orig.1.He was sad to leave. (superlative) S/B 1. He was saddened to leave. Orig. 2. She ran as fast as the others on the team (comparative) S/B 2. She ran faster than the others ran on the team Orig. 3. Throughout...

19 years ago

How can a graduated cylinder marked in milliliters be used to measure the volume of a small wooden block? Hurry up and answer this for me!!!!!! put 100ml water into the cylinder, then put the block into the water and measure how many ml are indicated on t...

19 years ago

7x-12=x+2+2x-3x Solve for x Combine the terms on the right hand side first. Then add 12 to both sides and solve for x.

19 years ago

What are median and mode and how do you find them? Median- The middle number in a set of data. You find it by simply couting to the center of the set of data. Mode- The number that occurrs the most times in a set of data.

19 years ago

Can someone please help me with the following questions? 1:Suppose you were given an ancient wooden box. If you analyze the box for carbon-14 activity and find that it is 50% of that of a new piece of wood of the same size, how old is the wood in the box?...

18 years ago

Information on verbal and nonverbal communication styles in hong kong where can we find volcanoes?? active or dormant?

18 years ago

How do you know if it makes sense to connect the dots on a plot graph

18 years ago

The instructions say: "Change the verbs from the present tense to the present progressive" and gives the following example but no answer "Yo miro la television." What do I do?

17 years ago

I must have hit the wrong key. As I was writing a Microsoft Word document, the whole screen changed and now everytime I hit the "Enter" bar, a black Paragraph symbol prints. Each letter has a dot between it as though I am seeing the visual representation...

16 years ago

a barrier island is 1 km wide and 10 km long. If erosion by a longshore current causes the island to lose 1.5 m of its with per year, how long will it take for the island to lose one-fourth of its width?

16 years ago

What do u call a # that has factors other than itself and 1 are _______ numbers.? Thank you

16 years ago

if a # is not a prime # what is it?

16 years ago

what are the 3 names for measuring triangles by side length? what are the 3 names for measuring triangles by the angle size? thank you website reference would be great :)

15 years ago

From Table 4-1 in the text, determine by how much the demand for Florida Indian River oranges would change as a result of a 10 percent increase in the price of Florida interior oranges, and vice versa. Table 4-1: Type of Orange Florida Indian River Florid...

15 years ago

A downhill skier travels down a course at an average speed of 60 km/hr for 2 minutes. How far in km did she ski? convert your answer to meters.

15 years ago

a polar bear runs across the ice at an average velocity of 5.5 m/s. How far will she run in 3.5 minutes?

15 years ago

a baseball is pitched at 60 mph or 88 ft/sec. to a batter standing 60.5 ft away. How long does it take the ball to get to the batter?

15 years ago

can someone tell me what is...the ability of a solid object to return to its original size & shape after it has been strecthed. thank you

15 years ago

car traveling on a road perpendicular to railroad track, car is 30 meters from the crossing, train is 50 meters from the car; how far is the train from the crossing?

15 years ago

Susan has red, blue, and yellow sweaters. Joanne has green, red, and white sweaters. Diane's sweaters are red, blue, and mauve. Each girl has only one sweater of each color and will pick a sweater to wear at random. Find the probability that each girl cho...

15 years ago

Select a purchase you personally have made recently and describe your buying process, including any other parties involved in the buying process and their roles in your purchase decision. To do this, please complete the following template and make sure to...

15 years ago

Select a purchase for a refrigerator which recently made and please describe your buying process, including any other parties involved in the buying process and their roles

15 years ago

4NH3+5O2 = 4NO + 6 H20 If a container were to have 10 molecules of O2 and 10 molecules of NH3, initially, how many total molecules (reactants plus products) would be present in the container after this reaction goes to completion?

15 years ago

A bill has been approved in the House and Senate, albeit in slightly different versions. The bill now goes to ??

14 years ago

3x to the 3rd power plus 5x to the fifth power

14 years ago

how is the following simplified 3x to the third power plus 5x to the fifth power

14 years ago

how is the following simplified 3x to the third power plus 5x to the fifth power

14 years ago

is x to the 4th power plus x to the 4th power equal to x to the 8th power?

14 years ago

still stuck on simplififying 3x^3+5x^5...please assist

14 years ago

Three point charges with values = 4.00 , = 1.00 , and = 7.00 are placed on three consecutive corners of a square whose side measures = 5.00 . Point A lies at the fourth corner of the square, diagonally across from . Point B lies at the center of the squar...

14 years ago

Two stationary point charges of 5.00 and 2.00 are separated by a distance of 60.0 . An electron is released from rest at a point midway between the charges and moves along the line connecting them. What is the electric potential energy of the electron whe...

14 years ago

A landscape architect is planing an artificial water fall. Water flowing at 1.11 m/s will leave the end of a horizontal channel at the top of a vertical wall h=4.00 m high. Will the space behind the waterfall be wide enough for a pedistrian walkway? To se...

14 years ago

An object of mass m is dropped at t=0 from the roof of a building of hdight h. A wind blowing parallel to the face of the building exerts a constant force F on the object. At what time t does the object strike the ground? Express t in terms of g and h.

14 years ago

Let U = {9, 10, 11, 12, 13, 14, 15, 16, 17, 18}, A = {10, 12, 14, 16}, B = {13, 17}, and C = {10, 13, 16, 17, 18}. List all the members of each of the sets. (Enter solutions from smallest to largest. If there are any unused answer boxes, enter NONE in the...

13 years ago

A red bead releasd from rest at height H slides down a wire without sticking to a green bead initally at rest. The mass of the green bead is half that of the stuck together beads both continue to slide down the wire and then slide back up. With the starti...

13 years ago

What is the definiton of marginal proficiency consumer?

13 years ago

I need to write a paragraph why i choose medical billing. It has to have different experiences that motivate you to choose that field

13 years ago

How much time is required for reflected sunlight to travel from the Moon to Earth if the distance between Earth and the Moon is 3.85 x 10 to the 5th exponent?

13 years ago

How many minutes are required for a radio signal to travel from Earth to a space station on Mars if Mare is 7.83 x 10 to the 7th power km?

13 years ago

In black and white photography, a photon energy of about 4.00 x 10 to the negative 19th power I is needed to bring about the changes in the silver compounds used in the film. Explain why a red light used in a darkroom does not affect the film during devel...

13 years ago

What causes depression? A. Genetic issues B. Biochemical issues C. There is no known cause D. Environmental issues Reset Selection

13 years ago

The right angle uniform slender bar AOB has mass m. Assuming a frely hinged pivot O, determine the magnitude of the normal force at A and the magnitude of the pin reaction at O.

13 years ago

2) Tube (b) is also filled with water, A1 is 0.05m2 and A2 is 0.08m2 Two pistons are placed in both ends of the tube and forces, F1 and F2 are exerted on the pistons so that they remain at the same height. If F1 = 20N what is F2? (I got the answer to this...

12 years ago

X^3+9x^2-108¡Ý0

12 years ago

Two students measured the outside temperature at noon from a thermometer hung in the playground. The two students recorded very different measurements. Give two possible reasons for why the students got such different measurements. I know one reason is on...

12 years ago

Determine the theoretical field of aspirin for a student who started the experiment with 2.489 g of salicylic acid. Show your work.

12 years ago

A sample of gaseous PCl5 was introduced into an evacuated flask so that the pressure of pure PCl5 would be 0.54 atm at 425 K. However, PCl5 decomposes to gaseous PCl3 and Cl2, and the actual pressure in the flask was found to be 0.85 atm. Calculate Kp for...

12 years ago

At 25°C, Kp = 2.910−3 for the following reaction. NH4OCONH2(s) 2 NH3(g) + CO2(g) In an experiment carried out at 25°C, a certain amount of NH4OCONH2 is placed in an evacuated rigid container and allowed to come to equilibrium. Calculate the total pressure...

12 years ago

At a particular temperature, 13.7 mol of SO3 is placed into a 3.9-L rigid container, and the SO3 dissociates by the reaction given below. 2 SO3(g) 2 SO2(g) + O2(g) At equilibrium, 3.8 mol of SO2 is present. Calculate K for this reaction.

12 years ago

Given the following equilibrium constants are given at 377°C, 1/2 N2(g) + 1/2 O2(g) NO(g) K1 = 110−17 1/2 N2(g) + O2(g) NO2(g) K2 = 110−11 N2(g) + 3/2 O2(g) N2O3(g) K3 = 210−33 N2(g) + 2 O2(g) N2O4(g) K4 = 410−17 determine the values for the equilibrium c...

12 years ago

If you want to make 75 mL of a 0.015 M solution of B(OH)3 in water, how many grams of B(OH)3 would you need?

12 years ago

How many grams of magnesium sulfate would you need to make 0.500 L of a 10.0% M/V solution in water? Please show work.

12 years ago

What is the % M/M concentration of 5.00 mL of methanol in 25 g solution of methanol in water? The density of methanol is 0.791 g/mL. The density of water is 1.000 g/mL. What is the % V/V concentration for the solution? Please show work.

12 years ago

Determine if the solubility would increase, decrease, or stay the same: 1) A saturated solution of sugar water is cooled from room temp to 0 degrees Celsius. 2) A solution of ocean water with dissolved oxygen is heated from 10 degrees Celsius to 15 degree...

12 years ago

Given the following functions, answer the questions: Temperature (°C) Kw 0 1.1410−15 25 1.0010−14 35 2.0910−14 40. 2.9210−14 50. 5.4710−14 Is the autoionization of water exothermic or endothermic? (b) What is the pH of pure water at 35°C? (c) From a plot...

12 years ago

Would you expect the pressure of a 12.5 mL syringe of natural gas to be the same as the pressure of 12.5 mL of air? In other words, is Boyle's Law dependent on the type of gas that is being measured?

12 years ago

Calculate the mass of HONH2 required to dissolve in enough water to make 255.5 mL of solution having a pH of 10.02 (Kb = 1.110−8).

12 years ago

Calculate the pH of a solution that is 0.124 M C2H5NH2 and 0.124 M C2H5NH3Cl. (Assume that the solution is at 25°C.)

12 years ago

Calculate the pH after 0.14 mole of NaOH is added to 1.07 L of a solution that is 0.54 M HF and 1.15 M NaF, and calculate the pH after 0.28 mole of HCl is added to 1.07 L of the same solution of HF and NaF. 0.14 mole of NaOH 0.28 mole of HCl

12 years ago

Calculate the pH after 0.016 mole of NaOH is added to 1.05 L of a solution consisting of 0.138 M HONH2 and 0.127 M HONH3Cl, and calculate the pH after 0.016 mole of HCl is added to 1.05 L of the same solution of HONH2 and HONH3Cl. (Assume that all solutio...

12 years ago

A buffered solution is made by adding 48.6 g C2H5NH3Cl to 1.00 L of a 0.77 M solution of C2H5NH2. Calculate the pH of the final solution. (Assume no volume change. Assume that all solutions are at 25°C.)

12 years ago

Consider a solution that contains both C6H5NH2 and C6H5NH3+. Calculate the ratio [C6H5NH2]/[C6H5NH3+] if the solution has the following pH values. (Assume that the solution is at 25°C.) (a) pH = 4.70 (b) pH = 5.26 (c) pH = 5.42 (d) pH = 4.96

12 years ago

How many moles of NaOH must be added to 1.0 L of 2.2 M HF to produce a solution buffered at each pH? (a) pH = pKa (b) pH = 4.24 (c) pH = 4.60

12 years ago

You make 1.00 L of a buffered solution (pH = 5.10) by mixing propanoic acid and potassium propanoate. You have 1.00 M solutions of each component of the buffered solution. What volume of each solution do you mix to make such a buffered solution? propanoic...

12 years ago

Calculate the pH after 0.013 mole of gaseous HCl is added to 272.0 mL of each of the following buffered solutions. (Assume that all solutions are at 25°C.) (a) 0.080 M C5H5N and 0.19 M C5H5NHCl (b) 0.72 M C5H5N and 1.52 M C5H5NHCl

12 years ago

What volumes of 0.47 M HF and 0.47 M NaF must be mixed to prepare 1.00 L of a solution buffered at pH = 3.50? HF NaF

12 years ago

Calculate the pH of a solution formed by mixing 124.8 mL of 0.481 M KF and 130.7 mL of 0.084 M HClO3.

12 years ago

Consider the titration of 41.5 mL of 0.213 M HCl with 0.123 M KOH. Calculate the pH of the resulting solution after the following volumes of KOH have been added. (Assume that all solutions are at 25°C.) (a) 0.0 mL (b) 10.0 mL (c) 40.0 mL (d) 80.0 mL (e) 1...

12 years ago

Consider the titration of 100.0 mL of 0.260 M propanoic acid (Ka = 1.310−5) with 0.130 M KOH. Calculate the pH of the resulting solution after each of the following volumes of KOH has been added. (Assume that all solutions are at 25°C.) (a) 0.0 mL (b) 50....

12 years ago

Calculate the return and standard deviation for the following stock, in an economy with five possible states. If a Boom (Probability=25%) economy occurs, then the expected return is 30%. If a Good (Probability=25%) economy occurs, then the expected return...

12 years ago

I need to change the syle of writing from a chapter in a book. From whatever syle it is written in to one of, gothic romance, pulp fiction or horror story. I don't know how to write in any of those styles, I don't know how to write!

12 years ago

A function of two variables is given by, f(x,y) = e^2x-3y Find the tangent approximation to f(0.989,1.166) near (0,0), giving your answer to 4 decimal places. Any kind soul to help on the problem. My professor raise this problem to me. i am so stuck.

12 years ago

10.7L of a gas at 1.75 atm are expanded to 20.0L at a mass constant temperature.what the new gas pressure?

12 years ago

A 2.5 kg block sits on an inclined plane with a 30 degree inclination. A light cord attached to the block passes up over a light frictionless pulley at the top of the plane and is tied to a second 2.5 kg mass freely hanging vertically. The coefficients of...

12 years ago

The Fourier series expansion for the periodic function,f(t) = |sin t|is defined in its fundamental interval. Taking π = 3.142, calculate the Fourier cosine series approximation of f(t), up to the 6th harmonics when t = 1.09. Give your answer to 3 decimal...

12 years ago

How many moles of Aluminium Bromide is fromed from 4.0 moles of Aluminium in equation: 2Al + 3 Br2 = 2 AlBr3?

11 years ago

you need to clean the gutters of your home. the gutters are 24 FT above the ground. for safety, the distance a ladder reaches up a wall should be four times the distance from the bottom of the ladder to the base of the side of the house. Therefore the lad...

11 years ago

I have water pH 7.0 insulation with various other things that do not affect pH, I am trying to add X amount of HCL to lower the solution to a pH of 1.5 I know pH=-log[HCl] but I'm not sure how to approach this problem, after this I am then trying to add N...

10 years ago

Can someone please tell me how to solve and graph this system of trinomial quadratic inequalities? {y is greater than or equal to x^2+6x+12} {y<-x^2-8x-12 }

10 years ago

the great white shark can grow length of 4.9 m. the mako shark can grow to a length of 40 dm.which shark can grow to the greater length? explain answer

9 years ago

Explain why the great white shark can grow to a length of 4.9 m.

9 years ago

A truck can be rented from Company A for $90 a day plus $0.70 per mile. Company B charges $60 a day plus $0.80 per mile to rent the same truck. How many miles must be driven in a day to make the rental cost for Company A a better deal than Company B?

9 years ago

Suzy earned $6.10 per hour in 2008 and $9.15 in 2011. How many times greater was the amount Suzy earned per hour in 2011 then in 2008? $9.15 - $6.10= $3.05

9 years ago

An amount of k20.000 is invested for 5 years in a credit union which pays an annual untreated rate of 4.5 percent. Find accumulated value after 4 years if intrest rate is a: annually b:semi annually c:quarterly e:monthly

9 years ago

Some have a hundred some have none Clues given -It is very colourful -You see it every morning

9 years ago

12

18 years ago

Trying to get the same info!! LOL

17 years ago

Hi - in the interests of keeping homework as accurate as possible: the group picture from the Girl Scouts of Maine Web site is not a picture of Juliette Low; it is Birdsall Otis (Mrs. Frederick)Edey - and yes, that's her real name! She was a poet and a Na...

17 years ago

Yes, I see it. I clicked on the Paragraph symbol. And all was right with the file again. THANK YOU! What a wonderful resource this site is!

16 years ago

I saw the Tiber RIVER flowing through Rome. flumen Question 2 I love the POEMS of Vergil! carmina Question 3 In his statue of Anchises, Aeneas, and Ascanius, Bernini did a beautiful job of depicting the stages of the BODY throughout life. corporis Questio...

16 years ago

if it's not a prime # what is it?

16 years ago

Table 4-1: Type of Orange: Florida Indian River Florida Interior Florida Indian River -3.07 +0.01 Florida Interior +1.16 -3.01

15 years ago

a) there are not sufficient funds. THe required sample size is 139 cars, and if each car will cost $100, then the total cost for estimating the mean stopping distance to within 2 feet of the true mean is $139,000, which is more than the budget will allow....

15 years ago

5x-y=36 5x+6y=-6 5x-y=36 -1(5x+6y=-6) Distribute 5x-y=36 -5x-6y=6 add these two equations right on top of each other. 0x-7y=42 -7y=42 y=-6 plug in the -6 for y, into either equation, and solve for x. 5x-(-6)=36 5x+6=36 5x=30 x=6 in ordered pairs, the answ...

15 years ago

it would take 30 grams of HCl to react completely with BaCO3, since it's a 1 to 2 ratio 30 grams of HCl = 1 mole/36 grams so it's .83 moles of HCl

15 years ago

no. the vertex is (1.499, 1.75)

15 years ago

Other predictors of procrastination include: task aversiveness, impulsiveness, distractibility, and how much a person is motivated to achieve. Not all delays can be considered procrastination; the key is that a person must believe it would be better to st...

14 years ago

that should read A intersection B and union C

13 years ago

I got 60.52 as well. I added up all of the present values.

13 years ago

Jessie time 7 minute Michael’s time is 2.5 times slower Divide 7 minutes by 2.5 to get answer Jesse = 7 Michael = 2.5 X 7 = 2.5 X 7/2.5 X = 17.5 to check answer divide 17.5 by the 2.5, your answer is 7.

13 years ago

Solve the problem using inductive reasoning. Find the 12th square number that corresponds to the following dot sequence. A. s12 = 144 B. s12 = 24 C. s12 = 169 D. s12 = 78 Reset Selection

13 years ago

In “Porphyria’s Lover” how does the speaker feel when Porphyria says she loves him? A. angry B. sad C. surprised and angry D. surprised and happy

12 years ago

The answer is c.

12 years ago

I did what you said but I keep getting the wrong answer no matter what I do.

12 years ago

it says my answer is still wrong. I got 0.017683 but it says the right answer is 0.071777081878092.

12 years ago

NO(g) + NO2(g) N2O3(g) N2O4(g) 2 NO2(g) Sorry about that

12 years ago

I'm sorry but I am still confused.

12 years ago

s>2+7s+10

12 years ago

any kind soul please help me. thanks.

12 years ago

I would like you to answer it for me

10 years ago

Much research is being conducted on repairing faulty sensory organs through devices such as personal guidance systems and eyeglasses, among others. Do you think that researchers should attempt to improve normal sensory capabilities beyond their “natural”...

10 years ago

Much research is being conducted on repairing faulty sensory organs through devices such as personal guidance systems and eyeglasses, among others. Do you think that researchers should attempt to improve normal sensory capabilities beyond their “natural”...

10 years ago

Thats weird. I have the same question on my test but instead my answers are A. $2,000 B. $2,100 C. $2,250 D. $2,300

9 years ago

Displacement. The Sodium and Aluminum switched.

8 years ago

anonymous is correct

8 years ago

Plese explain better by using normal arithmetic signs

5 years ago

h=9cm, v=n cm^3, c.s.a=n cm^2. Volume of cone is 1/3*22/7*r^2*h, therefore n=1/3*22/7*r^2*9=66r^2/7 therefore n=66r^2/7 now cross multiply 7n=66r^2 b.b.s by 66 we get r^2=7n/66 therefore r=√7n divided by √66. Also c.s.a=πrl therefore n=22/7*√7n divided by...

5 years ago

Yes

4 years ago