# diane

Most popular questions and responses by diane-
## science

Calculating A sample of barium nitrate is placed into a jar containing water. The mass of the barium nitrate sample is 27 g. Assume the water is at 20 ºC and that the resulting barium nitrate solution is saturated. What mass of water is present in the

*asked on December 21, 2011* -
## Physic (concepts-please check my thoughts)

A net torque applied to a rigid object always tends to produce? a)translational acceleration b) rotational equilibrium c) rotational acceleration d) rotational inertia e) none of these work (c) Torque produces torsion and tends to produce rotation. The net

*asked on December 10, 2006* -
## chemistry

what are the spectator in this equation Ba(aq)+2I(aq)+2Na(aq)+SO4(aq)=BaSO4(s)+2I(aq)+2Na(aq) Isn't it 2I(aq) and the Na(aq)?

*asked on March 17, 2012* -
## chemistry

When filling the buret with NaOH solution, you left an air bubble in the buret tip. The bubble was released durning your first KHP titration. Would the following technique error result in an erroneously high or reeoneously low calculated molarity of NaOH

*asked on February 22, 2010* -
## Last physics help question (my thoughts given)

A 160-N child sits on a light swing and is pulled back and held with a horizontal force of 100N. The tension force of each of the two supporting ropes is: a) 60N b) 94N c) 120N d) 190N e) 260N work: weight is down, the pull is back, so the tension must act

*asked on December 11, 2006* -
## math

Which of the following salaries will have a purchasing power of $24,035 if the inflation rate is five percent? A-$25,815 B-$27,523 C-$26,000 D-$25,300

*asked on January 18, 2012* -
## consumer math

You made $3000 on a part-time job last year. If you expect to make the same amount this year, and the inflation rate is three percent, what is your purchasing power?

*asked on January 18, 2012* -
## chemistry

explain how you would obtain solid lead carbonate from a mixture of lead carbonate and sodium carbonate powder

*asked on November 25, 2015* -
## English

Correct punctuation for Boston, Massachusetts Played an important role in American history and politics.

*asked on February 8, 2015* -
## Math

Roiger made deposits of $900 semiannually to the bank, which pays 6% interest compounded semiannually. After 7 yrs., he makes no more deposits. What would be the balance in the account 8 yrs. later from the last deposit?

*asked on August 5, 2011* -
## english

Which of the following sentences uses parallelism effectively? A. The large plant-eating dinosaurs were quite slow, rather stupid, and extremely hungry. B. The Red Sox fans screamed, yelled, and were applauding wildy. C. The report was good because it was

*asked on October 4, 2011* -
## physics

A car with a mass of 980 kg is initially traveling east toward an intersection with a speed of vc = 18.9 m/s and a 1500 kg pickup is traveling north toward the same intersection. The car and truck collide at the intersection and stick together. After the

*asked on November 30, 2012* -
## Math

Mariah has a flower bed that is 10 feet long and 5 feet wide. She wants to put a fence around the flower bed to keep the deer from eating her flowers. She also wants to leave enough space to walk between the fence and the flower bed. What is the perimeter

*asked on April 1, 2016* -
## MicroEconomics

You are a typical person in the US economy. You pay 4 percent of your income in a state income tax and 15.3 percent of your labor earnings in federal payroll taxes (employer and employees share combined) You also pay federal income taxes 15%. How much tax

*asked on November 14, 2006* -
## physics (please check work)

A force of 10N holds an ideals spring with 20-N/m spring constant in compression. The potential energy stored in the spring is: I obtained the answer of 10J. I got thatk= -F/x --> the potential energy of the spring = 1/2kx^2. 10J= 1/2(20N/m)(X)^2. Is that

*asked on November 5, 2006* -
## Math

1. P(yellow) a. 1/8 b. 1/6 c. 1/4 d. 1/2 2. P(red or blue) a. 0 b. 1/4 c. 1/2 d. 3/4 I don’t really understand this could someone help me? Thank you, have a wonderful day/night.:)

*asked on May 22, 2019* -
## statistic

Suppose the people living in a city have a mean score of 48 and a standard deviation score of 7 on a measure of concerns about the environment. Assume that these concerns are normally distributed using the 50%- 34% - 14% figures. Appoxatmaily what

*asked on September 18, 2014* -
## Microeconomics

This is a 5 part question; (a-e)The question reads: Suppose that a market is described by the following supply & demand equations: Qs=2P & Qd=300-P a) Solve for the equalibrium price & quantity. (I think I understand this process.) b)Suppose that a tax of

*asked on July 28, 2008* -
## math

Nancy had an income of $26,500 this year. If the inflation rate was 11 percent, what was her purchasing power?

*asked on January 18, 2012* -
## physics (work posted)

For a body to be in equilibrium under the combined action of several forces. a) all the forces must be applied at the same point b) all of the forces form pairs of equal and opposite forces c) the sum of the components of all the forces in any direction

*asked on December 10, 2006* -
## PHYS 1112

A defibrillator is used during a heart attack to restore the heart to its normal beating pattern. A defibrillator passes 18 A of current through the torso of a person in 2.0 ms. a) How much charge moves during this time? b) How many electrons pass through

*asked on February 11, 2010* -
## ELA

Underline the verb or verb phrase in each sentence and then identify whether it is an action verb or a linking verb. 1.) The hard-working plumber was early. 2.) Those secretaries appear very busy this afternoon. 3.) The cab driver was driving extremely

*asked on January 26, 2017* -
## Geometry

Unclear if the area of the base is diameter or radius. Thank you. The area of the base of a cylinder is 46 square inches and its height is 11 inches. A cone has the same area for its base and the same height. What is the cone's volume?

*asked on June 20, 2019* -
## physics-forces

Kara (55kg) is standing next to her brother Ben (80kg) on a large piece on frictionless ice. Kara decided to push her brother with a force of 200N expecting him to slide across the ice while she remains standing in the middle of the ice rink laughing. a)

*asked on January 20, 2014* -
## Math

1. What is the experimental probability of rolling a 3? A. 0.11**** B. 0.22 C. 0.30 D. 0.27 2. A quality control expert randomly samples 60 pairs of sunglasses and finds 5 defective pairs. Predict how many defective pairs will be in a shipment of 420

*asked on May 21, 2019* -
## 7th grade math

Sue Thank you I understand how to do those problems. I have one last question: Is this true or false: If the scale factor between two similar shapes is 1, the the two shapes are the same size. (Note If two similar figures have a scale factor of 1, they are

*asked on October 28, 2009* -
## Math

Paul's electric bill was three dollars more than one-half his gas bill. If electric bill was ninety-two dollars, what was gas bill

*asked on February 4, 2016* -
## ACCOUNTING

Gardner Manufacturing Company produces a product that sells for $120. A selling commission of 10% of the selling price is paid on each unit sold. Variable manufacturing costs are $60 per unit. Fixed manufacturing costs are $20 per unit based on the current

*asked on January 28, 2013* -
## chemistry

How many atoms are in 11 molecules of sulfur hexafluoride?

*asked on October 16, 2012* -
## ELA

Underline the verb or verb phrase in each sentence and then identify whether it is an action verb or a linking verb. 1.) The hard-working plumber was early. 2.) Those secretaries appear very busy this afternoon. 3.) The cab driver was driving extremely

*asked on January 24, 2017* -
## Math-Compound intersst

Trying to help my 8th grader, but I'm at a loss with this one. Can anyone assist? Thank you. Gwyneth placed $2,000 in an account that warned 10% interest, compounded annually. How many years did she save if she if she had $2,662 in her account?

*asked on February 17, 2019* -
## physics

I have a question involving the spring costant: A 2-kg block is attached to a horizontal ideal spring with a spring constant of 200N/m. When the spring has its equilibrium length the block is given a speed of 5 m/s. What is the maximum elongation of the

*asked on November 5, 2006* -
## physics (please check work)

A uniform rod AB is 1.2 m long and weighs 16N. It is suspended by strings AC and BD. A block P weighing 96N is attached at E, 0.30N from A. The tension force in the string BD has a magnitude. My work: Taking torque around AC string

*asked on December 10, 2006* -
## physics- multiple choice

1. A transport truck pulls on a trailer with a force of 600N [E]. The trailer pulls on the transport truck with a force a) of zero b) of less than 600 N is the truck is slowing down c) equal to 600 N only if the truck is moving at constant velocity d)

*asked on January 19, 2014* -
## math

Perry made $34,885 this year. If the inflation rate was 6.5 percent, how much was his salary actually worth? (purchasing power)

*asked on January 18, 2012* -
## Chemistry

If 43.2 mL of 2.46 M HClO4 solution completely reacts with a 75.0 mL sample of a sodium hydroxide solution, what is the molarity of the sodium hydroxide solution? (hint: write the complete balanced rxn)

*asked on October 10, 2014* -
## consumer math

Which of the following salaries will have a purchasing power of $24,035 if the inflation rate is five percent? A-$25,815 B-$27,523 C-$26,000 D-$25,300

*asked on January 18, 2012* -
## Chemistry

The estimated lattice energy for is CsF2+2347kj/mol. Use the data given to calculate an overall energy change (in kilojoules per mole) for the formation of from its elements. Ea for F = -328 E11 forCs = +375.7 E12 for Cs = +2422 Heat of sublimation for Cs

*asked on November 9, 2010* -
## Science

A new organism is found that is multicellular, does not have a backbone and has six legs. Classfy this organism in two ways.

*asked on March 9, 2010* -
## Science--Physics--check answers

1. A football player pushes a dummy forwards at a constant 0.85m/s for 11m using 7150 J of energy. The dummy has a mass of 120 kg. Find the force the football player exerts, find the frictional force the dummy exerts. - for my answer I got 1176N as the

*asked on February 3, 2014* -
## finance

You have a credit card with an APR of 24%. The minimum payment is 5% of the outstanding balance (but no less than $20). Suppose you have $2000 on the card and you decide to stop charging and pay it off using the minimum payment each month. Use a

*asked on May 4, 2018* -
## Physics questions ( I posted all my work)

A uniform rod AB is 1.2 m long and weighs 16N. It is suspended by strings AC and BD. A block P weighing 96N is attached at E, 0.30N from A. The tension force in the string BD has a magnitude. My work: Taking torque around AC string

*asked on December 10, 2006* -
## Math 4

There are 20 teachers and 705 students in Corey's school. What is the ratio of teachers to students? How would I solve this problem? PLZ help me! :(

*asked on April 17, 2016* -
## Physics-forces

1. NASA launched a 550kg satellite into space. Its engines have a thrust of 8000N. a) What is the downward froce of gravity acting on the rocket at blast off? (is it 5390N?) b) What is the acceleration of the rocket at blast-off? (Hint: Fine Fnet first) 2.

*asked on January 20, 2014* -
## Math

If you deposit $900 semiannually in a bank which pays 6% interest compounded semiannually and make no more deposits after 7 years, what is the balance in the account 8 yrs. later from the last deposit?

*asked on August 2, 2011* -
## 7th grade math

Suppose you copy a figure on a copier using the given size factor. Find the scale factor from the original figure to the copy in decimal form. a] 200% b] 150% c] 75%

*asked on October 28, 2009* -
## 8th grade math

firefighters have a 35 foot extension ladder. In order to reach 30 feet up a building, how far away from the building should the foot of the ladder be placed? Express your answer in simplest radial form a^2+b^2=c^2 30^2+x^2=35^2 900+x^2=1225 -900 -900

*asked on March 3, 2014* -
## Algebra 1

sqrt r - sqrt s/ sqrt r + sqrt s =r sqrt r- sqrt rs +sqrt s/ r can someone check this for me please.

*asked on July 5, 2008* -
## Social Studies

1)What is the difference between a federal form of government in a confederal form of government? a. A federal government is democratic, while a confederal government is dictatorial. b. A federal government has a constitution while a confederal government

*asked on May 22, 2019* -
## Chemistry

FB1 is a solution containing a mixture of potassium carbonate and sodium hydrogen carbonate . 25cm^3 of this mixture was to titrated against 0.250mol/dm^3 solution of HCL. In one titration using phenolphthalein as indicator, 10.00cm^3 of the acid was

*asked on February 21, 2016* -
## math

Oatmeal is packed in a cylindrical container The diameter of the container is 13cm and its height is 24 cm. Determine in terms of TT (pi), the volume of the cylinder, in cubic centimeters v=TTr^2h v=TT6.5^2(24) v=1014 TT(pi) Is this correct? Thanks for

*asked on May 26, 2014* -
## physics-forces

Kara (55kg) is standing next to her brother Ben (80kg) on a large piece on frictionless ice. Kara decided to push her brother with a force of 200N expecting him to slide across the ice while she remains standing in the middle of the ice rink laughing. a)

*asked on January 20, 2014* -
## physics 2

The inner and outer surface of a cell membrane carry a negative and a positive charge, respectively. Because of these charges, a potential difference of about 0.070 V exists across the membrane. The thickness of the cell membrane is 8.0 × 10−9m. What is

*asked on February 4, 2010* -
## Quadratic Equations

The length of a rectangular field is 2m greater than three times its width. The area of the field is 1496 metre square. What are the dimensions of the field ?

*asked on August 17, 2016* -
## Physics

On the lower left corner of a square is a fixed charge qLL = 1.5x10^-9 C and on the loser right corner is a fixed charge qLR = 4.0x10^-9 C. The square has a side length L = 0.25 meters. a) Find the electric potential energy of a third charge q = -6x10^-9 C

*asked on January 26, 2010* -
## Chemistry

C3H8 + 5O2 --> 3CO2 + 4H2O which chemical or element has the largest nu,ber of molecules in the above balanced equation? Oxygen? I think

*asked on September 24, 2008* -
## physics

A road is inclined at an angle of 9 degrees with the horizontal. After driving 10,000 feet along this road, find the driver's increase in altitude?

*asked on July 20, 2010* -
## English

I need to know the prepositions in the following question. The patient is a 42-year-old male with a history of left shoulder osteomyelitis wit resistant pseudomonas from an injury he sustained approximately 20 years ago.

*asked on April 13, 2014* -
## geometry

IF AB = 15 and AC =23,find the length of BC (BC has a line over it)

*asked on September 14, 2011* -
## Math

On May 12, Bob Campbell accepted a $5,000 note in granting a time extension of a bill of goods bought by Rick Ween. Terms of the note were 8% for 120 days. On July 8, Bob needed to raise cash and discounted the note at Rick's bank at a discount rate of 9%.

*asked on August 5, 2011* -
## Complete subjects and predicates

Underline the complete subject with one line and circle the simple subject. Underline the complete predicate with two lines and circl the simple predicate. 1. A young girl walks carefully along the rocky shore. 2. Carmen notices the tide going out. 3.

*asked on March 14, 2011* -
## Social Studies

What role does the press have in American Democracy? How would society and government be different if there was no guarantee of a free press?

*asked on May 23, 2019* -
## psychology

Social skills training programs are interventions in which children are taught specific, discrete behaviors that can facilitate effective social interactions, like making eye contact and asking appropriate questions. Assessments of these interventions

*asked on October 5, 2016* -
## math

a building casts a 25 foot shadow on a sunny day. If the angle of elevation from the tip of the shadow to the top of the building is 65 degrees, what is the height of the building to the nearest tenth of a foot? I did tan =x/25 x=25tan65 x=53.61267301

*asked on March 3, 2014* -
## Algebra

If $3000 left in an account for 4 years earned interest of $960, then how much interest would be earned in 7 years.

*asked on February 11, 2016* -
## College Algebra

A rancher wishes to enclose a rectangular partitioned corral with 1932 feet of fencing. What dimensions of the corral would enclose the largest possible area? Find the maxium area.

*asked on October 4, 2013* -
## math

solve the inequality -5(x-7)

*asked on May 26, 2014* -
## accounting

After the accounts are adjusted and closed at the end of the fiscal year, Accounts Receivable has a balance of $673,400, and Allowance for Doubtful Accounts has a balance of $11,900. Describe how the accounts receivable and the allowance for doubtful

*asked on April 27, 2014* -
## physical science

If a book sits on a shelf1.5 m above the floor.One frienf tells you that the book's mechanical energy is zero, and another says it is not . Who is correct?

*asked on November 3, 2011* -
## english

Include a discussion of sentence variety and the rhythm of the author's writing. underline the topic sentence. Question : why individuals can be denied credit for a number of reasons.

*asked on February 20, 2011* -
## Business Algebra

I need to know the formula for these questions and just how to do them. If you could help please. As a financial planner a client comes to you for investment advice. After meeting with him and understanding his needs, you offer him the following two

*asked on December 21, 2010* -
## Math

Calculate the area of a circle with a radius of 2 cm and a circle with a radius of 4 cm. Leave your answers in terms of pi. When the radius doubles, does the area of the circle double? A) 4π cm2; 8π cm2; NO B) 4π cm2; 16π cm2; NO C) 4π cm2; 16π cm2;

*asked on March 27, 2018* -
## Psychology

This the question; Jung believed that the persona, anima/animus, and shadow were some of the archetypes that had evolved so completely that they could be considered separate systems within the personality. Which list below best describes those archetypes

*asked on June 29, 2013* -
## Financial Accounting

Prepare the general journal entries for the following transactions: Jan 2, 2011 -- Purchased land with a building on it for $750,000. The land is worth $300,000. Paid $150,000 cash down and signed a mortgage payable for the balance. Dec. 31,

*asked on February 16, 2012* -
## Probability

I have two children. One of them is a boy born on a Tuesday. What is the probability they are both boys?

*asked on August 30, 2010* -
## Math

If a license plate has 3 letters and then 3 numbers, what are the chances (probability?) of getting at least 1 letter "Z" in one of the letter spots if the letters are picked randomly? and I think each letter can only be used once.

*asked on September 20, 2009* -
## Algebra

An arrow is shot vertically upward from a platform 48 ft high at a rate of 233 ft per sec. When will the arrow hit the ground? Use the formula: h = −16t2 + v0t + h0.

*asked on April 12, 2016* -
## physics

Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is μk = 0.27

*asked on November 30, 2012* -
## Acct 100 Question

Glanville Distribution markets CDs of the performing artist Harrilyn Clooney. At the beginning of March, Glanville had in beginning inventory 1,500 Clooney CDs with a unit cost of $7. During March Glanville made the following purchases of Clooney CDs.

*asked on August 12, 2012* -
## physics

have a question involving the spring costant: A 2-kg block is attached to a horizontal ideal spring with a spring constant of 200N/m. When the spring has its equilibrium length the block is given a speed of 5 m/s. What is the maximum elongation of the

*asked on November 5, 2006* -
## MATH

Solution A is 25% and solution B is 40% acid. How many gallons of each solution must be used in order to create a 50 gallon mixture that is 34% acid? Solution A___ Solution B___

*asked on October 12, 2011* -
## Business Algebra

Invest $23,000 in a savings account at 4.25% interest compounded quarterly. Invest into an ordinary annuity where $5,000 is deposited each year into an account that earns 6.6% interest compounded annually.

*asked on December 20, 2010* -
## 12th grade

it takes bill 4 hours to paint a house. it takes john 7 hours to paint the same house. how long does it take to paint the house if they painted it together.

*asked on April 9, 2009* -
## Math

Suppose you toss a coin and will win $1 if it comes up heads. If it comes up tails, you toss again. This time you will receive $2 if it comes up heads. If it comes up tails, toss again. This time you will receive $4 if it comes up heads. Continue in this

*asked on November 2, 2008* -
## Physics (please help)

A 160-N child sits on a light swing and is pulled back and held with a horizontal force of 100N. The tension force of each of the two supporting ropes is: A uniform plank is supported by two equal 120N forces at X and Y at both ends of the plank.The

*asked on December 10, 2006* -
## Role of responsible moderates

WHat role did responsible moderates, such as John Adams , Benjamin Franklin, and THomas Jefferson play in producing wide-based support for independence in the American colonies? "Diane" I have removed all the questions you posted. We will be happy to

*asked on September 2, 2006* -
## math

Translate to an algebraic expression 31 less than d

*asked on October 5, 2017* -
## math

Anny invests $3,000, at 6% interest, compounded monthly for 1 year. Use Table 11-1 to calculate the compound amount for her investment.

*asked on July 6, 2014* -
## advanced functions/precalculus

1. The function f(x) = (2x + 3)^7 is the composition of two functions, g(x) and h(x). Find at least two different pairs of functions g(x) and h(x) such that f(x) = g(h(x)). 2. Give an example of two functions that satisfy the following conditions: - one

*asked on January 15, 2014* -
## Psychology

I would like for someone to confirm that my choice of answers for these three questions are correct. If there is a incorrect answer out of the three questions that I chose please advise me to the right choice. Thank you! 1). Dr. Casey is evaluating a

*asked on July 7, 2013* -
## Compensation Management

Forrest just gave his assistant a 3% raise because his assistant just took on the responsibility of department budgeting. Which of the following policy choices did he make? The answer is eluding me...internal alignment, external competitiveness, management

*asked on September 29, 2012* -
## Westwood

Flexibility is said to be the hallmark of modern management accounting, whereas standardization and consistency describe financial accounting. Explain why the focus of these two accounting systems differ.

*asked on January 15, 2012* -
## Physics

A 12kg blcok sits on a table. A 10 kg block sits on top of the 12kg block. What is the force the table exerts on the 12kg block. Please explain any answer.

*asked on September 13, 2011* -
## statistics

A company that manufacturers bookcases finds that the average time it takes an employee to build a bookcase is 23 hours with a standard deviation of 8 hours. A random sample of 64 employees is taken. What is the likelihood that the sample mean will be 18

*asked on March 6, 2012* -
## finance

You would like to buy a Mazda Miata Convertible for a purchase price of $27,500. You will take out a loan for the entire amount. a. You have excellent credit so you can secure a loan at 5% APR for 3 years. What is your monthly payment? How much will you

*asked on May 4, 2018* -
## finance

4. Alternatively you decide the most you can afford in a monthly payment for a home is $750. You plan on taking out a 30 year loan for 4%. How much can you borrow? What is the total amount of home you can afford? (assume the $20000 down payment listed

*asked on May 4, 2018* -
## Algebra

The sum of a positive number and 5 is 806 times the reciprocal of the number. Find the number.

*asked on April 12, 2016* -
## Algebra

Use a system of equations to solve the following problem. The local theater has three types of seats for Broadway plays: main floor, balcony, and mezzanine. Main floor tickets are $59, balcony tickets are $50, and mezzanine tickets are $40. One particular

*asked on February 23, 2016* -
## Biology

How do you determine how the age of a specimen where there is only 1/2 of the original Carbon14 isotope left? What if 1/2 of the original isotope was left? I cannot show my work because I do not know how to figure this out.

*asked on January 10, 2016* -
## Organic Chemistry

Please correct me if I'm wrong... I'm attempting to find the theoretical yeild of performing a Hydroboration-Oxidation of 1-Octene, to form Octanol. ----- Reactants: 1-Octene: 210 microliters, 1.34 mmol, 112.22g molecular weight. Borane•THF (1M): 500

*asked on April 17, 2013*