Number of results: 11,500

**Physics**

Two speakers driven in a phase by the same amplifier at a frequency of 640 Hz, are 7 m apart. A listener originally at the position of one of the speakers starts walking away from that speaker in a direction that is perpendicular to the line connecting the two speakers. How ...

*May 31, 2016 by Anonymous*

**math**

The average selling price of homes in a certain city is $356,300. Assume the variable is normally distributed with a standard deviation of $64,600. If 396 homes are for sale, how many homes will sell for more than $325,000? (Round up to the next whole number.)

*November 28, 2011 by Jennifer*

**business**

The Springer Company sells its product for $20 per unit. Its fixed costs are $10,000 and the variable cost per unit is $10 What is the new break-even point if the price per unit increases from $20 to $30

*October 4, 2014 by v*

**Chemistry**

Assume the solubility of benzoic acid in ice-cold water is 1.70 g/L and the solubility of benzoic acid in hot water is 68.0 g/L. Calculate the minimum volume of water (in mL) needed to recrystallize 0.950 g of benzoic acid.

*August 12, 2012 by Jen*

**Chemistry**

Assume the solubility of benzoic acid in ice-cold water is 1.70 g/L and the solubility of benzoic acid in hot water is 68.0 g/L. Calculate the minimum volume of water (in mL) needed to recrystallize 0.350 g of benzoic acid.

*January 30, 2013 by Anonymous*

**Prin of finance**

Which of the following statements are true of a “two-for-one stock split?”: 1. It may signal higher future earnings 2. By creating more shares at a lower price, marketability may be improved 3. It increases the “Equity Section” of a company’s Balance Sheet a. 1 and 2...

*March 14, 2010 by Donald*

**Economics**

Why does a government place price ceilings, such as rent control, on some "essential" goods? I choose C am I right? A. to prevent the development of a black market B. toencourage an increase in supply of necessary items C. to limit the impact of equilibrium pricing D. to help ...

*April 30, 2012 by Anonymous*

**PE**

Kobe Bryant is a very famous basketball player who helped his team win many national champion ships. When people use him to advertise their line of athletic wear, what type of advertising are they using? Band wagon emotional appeal price appeal testimonial plz help.

*February 24, 2017 by Kat*

**math**

Consider the initial value problem, f(x,y) = y(18.06 - y), y(0) = 12. The exact solution of the problem increases from y(0) =12 to y = 18.06 as x increases without limit. Determine the minimum upper bound of h for the classical 4th-order Runge Kutta method to be absolutely ...

*September 26, 2012 by enigma*

**Physics**

A solid sphere and a thin walled spherical she'll, both with a radius R, are set up to roll down a ramp and through a vertical loop of radius r. From what minimum height, h, does each sphere need to be released in order to make it around the loop? If the loop has a radius of r...

*November 8, 2016 by Kassy*

**managerial accounting**

Im trying to get the selling price the question is marina has estimated the fixed cost per month are 240,000 and variable cosdt per dollar of sales is $0.60. what is the break even point per month use

*February 1, 2007 by Tarver*

**microeconomics**

Help!! There are two firms who collude and behave like one firm but with two plants. MC1=10, MC2=30. Market demand Q=200-P. Two plants maximize profits. What is total profit nad production, price in each plant?

*May 16, 2010 by Aneta*

**Visual Basic...Please help!**

Design and develop a simple system that computes the Depreciation cost of the item (D). Takes as input the purchase Price of an item (P), its expected number of years of Service (S), and Yearly depreciation for the item (Y). Use the formula D= P-(S/Y).

*February 9, 2014 by Jnr John*

**Microeconomics**

Consider a single price monopoly that faces a market demand curve for a good is given by the equation 𝑃=100−.1𝑄 and the total cost function is given as 𝑇𝐶=1000+20𝑄+.4𝑄2.

*September 12, 2016 by Ella*

**algebra**

the dollar price for a barrel of oil sold at a certain oil refinery tends to follow the demand equation below where x is the number of barrels of oils on the hand in ( millions ) a) how much should be charged for a barrel of oil if there are 6 million

*November 3, 2016 by dan*

**Math**

My answers 1.A 2.C 3.D 4.A 5.A 6.D 7.B 8.D 9.D 10.C 1. Write the following ratio in simplest form: 32 min:36 min (1 point) 8:98:3632:9128:144 2. Marie saved $51. On Wednesday, she spent $8 of her savings. What ratio represents the portion of her total savings that she still ...

*December 2, 2016 by Bill Cipher*

**extrema**

The function is given as y = 7x^3 - 8x^2 -16x +15 The max is at x = -4/7 & min is at x = 4/3 How do I know that it is local max&min or absolute max &min? (graphing calculator is not allowed) You know that it's a local minimum and maximum because the x^3 term approaches ...

*November 19, 2006 by Jen*

**maths-urgently needed**

Consider the number 6135246. Jai can change this number in the following way. He can select atleast one digit and at most six digits (which need not necessarily be consecutive) from this number, and shift them to the rightmost in their respective order. For example- If she has...

*January 18, 2013 by Anonymous*

**Credit Cards**

Say if u had a credit card balance of five hundred dollars and paid only the minimum monthly amount, the actual amount u paid 4 that five hundred would be way higher? WOuld this be true?

*January 18, 2011 by Anonymous*

**physics**

A solid sphere of mass m and radius r rolls with out slipping along the track.it starts from rest with the lowest point of tthe sphere at aheight h above the bottom of the loop of radius R,much larger than r.(a) what is the minimum value of h (interms of R)such that the sphere...

*January 12, 2013 by Anonymous*

**Finance**

Assume that you have a balance of $3000 on your American Express credit card and that you make no more charges. If your APR is 18% and each month you make only the minimum payment of 4% of your balance, then the formula for the balance after t monthly payments is given by 3000...

*June 28, 2015 by Finance*

**Math**

You have a balance of $15,000 for your tuition on your American Express credit card. If your APR is 21%, you make no further charges, and each month you make only the minimum payment of 3% of your balance, then the formula for the balance after t monthly payments is given by ...

*June 28, 2015 by Bob*

**PHYSICS- Please Help :(**

A ball is thrown downwards at a velocity of 14m/s from a bridge. One second earlier a rock is dropped from the same bridge. a)When will the ball meet up with the rock. b)When will the ball meet up with the rock? c)What is the initial minimum speed by the ball in order to catch...

*February 12, 2012 by Coco*

**physics**

In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will keep the system moving ...

*May 7, 2012 by ally*

**physics**

In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will keep the system moving ...

*May 8, 2012 by ally*

**math**

Let g be a function that is defined for all x, x ≠ 2, such that g(3) = 4 and the derivative of g is g′(x)=(x^2–16)/(x−2) with x ≠ 2. Find all values of x where the graph of g has a critical value. For each critical value, state whether the graph of g ...

*March 16, 2015 by Gary*

**math**

Write the following formula (for any triangle abc): - The minimum perimeter value of any triangle (abc) known heights corresponding to the sides a and b. x = side a height (known) y = side b height (known) p = perimeter (unknown) Note: You don't have the area value or any ...

*September 18, 2016 by Jesus*

**AP PHYISCS**

A paratrooper fell 380m from an airplane without being able to open his chute but happened to land in snow, suffering only minor injuries. Assume that his speed at impact was 58 m/s(terminal speed), that his mass (including gear) was 90 kg, and that the force on him from the ...

*January 12, 2008 by Kristen*

**Physics**

In a popular amusement park ride, a cylinder of radius 2.19 meters is set in rotation at an angular speed of 5.09 rad/s. The floor then drops away, leaving the riders suspended against the wall in a vertical position. What minimum coefficient of friction between a rider's ...

*April 28, 2008 by Kendra*

**Riyadh**

A banner needs to be enlarged from its original format. The dimensions of the original are 4 cm tall by 25cm wide. The enlarged banner needs to be at least 8 m wide but no more than 1.4 m tall. Calculate the minimum and maximum ratios of enlargement possible.

*November 30, 2016 by Akabr*

**Go Math grade 6**

The Webster family is planning a barbecue for one hundred people. The Webster family needs one plastic plate for each person at the barbecue. The Stop and Shop store and Market Place Store both sell plastic plates in packages of fifteen for five dollars and forty-eight cents ...

*October 7, 2015 by Lemi*

**Physics**

Every once in a while a bird will get hit by a baseball during a baseball game. The longest home runs in baseball land about 500 feet (which is 152.4 meters) from home plate. If these balls leave the bat at a 45 degree angle to maximize their distance, what is the minimum safe...

*March 12, 2013 by John*

**Physics**

Every once in a while a bird will get hit by a baseball during a baseball game. The longest home runs in baseball land about 500 feet (which is 152.4 meters) from home plate. If these balls leave the bat at a 45 degree angle to maximize their distance, what is the minimum safe...

*March 27, 2013 by Dan*

**math**

a gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the bushes cost $25.00per foot and the fence costs $10.00 per foot, find the dimensions that minimize the total cost and find the minimum cost

*March 30, 2010 by joelle*

**CALCULUS**

gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the bushes cost $25.00per foot and the fence costs $10.00 per foot, find the dimensions that minimize the total cost and find the minimum cost

*March 30, 2010 by JENNY*

**physics please help !**

In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will keep the system moving ...

*May 8, 2012 by ally*

**physics please help !**

In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will keep the system moving ...

*May 8, 2012 by ally*

**Calculus**

Mr. Phillips decides to have a completely fenced-in garden. It will be laid out so that one side is adjacent to his neighbor's property. The neighbor agrees to pay for half of that part of the fence which will border his property. The garden is to contain 432 square yards. ...

*November 15, 2010 by MEG*

**Physics**

Consider a 59-cm-long lawn mower blade rotating about its center at 2990 rpm. (a) Calculate the linear speed of the tip of the blade. (b) If safety regulations require that the blade be stoppable within 3.0 s, what minimum angular acceleration will accomplish this? Assume that...

*June 16, 2012 by Camilla*

**physics**

a motorcycle wants to jump a ditch 4m wide. he leaves one side on a ramp that slopes up at 30 above horizontal. he lands at the same elevation at which he took off. his front wheel leaves the ground 2m before the edge of the ditch and comes down 3 m past the far side of the ...

*November 4, 2014 by Michael*

**college/Agricultural policy**

Find the price and quantity that will satisfy the condition fpr static efficiency in the use of water resources given the following demand and supply equations for water: Demand: P=600-Q Supply: P=2+Q

*February 17, 2009 by jesse*

**Finance**

A commercial paper note with a $1 million par value and maturing in 60 days has an expected discount return (DR) at maturity of 6 percent. What was its purchase price? What is this note’s expected coupon-equivalent (investment return) yield (IR)?

*February 16, 2011 by Anonymous*

**Math**

The markup on a video camera should be 37 % based on selling price. If the seller paid, $ 390 for one, then how much should it be sold for to achieve the desired markup? (a)$ 404.34 (b) $ 1,054.05 (c) $ 404.43 (d) $ 619.05 (e) $ 534.30

*October 11, 2011 by Anonymous*

**math 3**

a sample of restraunts in a city showed that the average cost of a glass of iced tea is $1.25 with a standard deviation of 7 cents. if a new restraunt charges a price for iced tea that has a z value of 1.25, then what is the teas actual cost

*November 20, 2014 by raven*

**Business Math**

A manufacturer of ice skates offered a chain discount of 7/5/1. Bobby’s Sport Shop ordered 30 pairs of skates that had a list price of $925. What was the amount Bobby had to pay for the goods?

*December 2, 2014 by Jeffrey W*

**MATH HELP**

Determine the annual dividend and the annual yield to the nearest hundredth of a percent. Ella Franklin owns 325 shares of ITA stock. Purchase price was 37.85 per share dividends are 1.11 per share

*February 17, 2016 by Beth*

**Math**

Family wants to buy van in 2 years, they want to make a down payment of 25% of the estimated purchase price of $29,000. Find the amount they need to invest to make the down payment if funds earn 10% compounded semiannually.

*July 4, 2016 by Vivianne*

**Math**

With the 20% off coupon, Alexis received a discount of $15 on her shoes. What was the regular price of her shoes before the 20% off coupon was applied? Justify your answer using equations, models, and/or words to explain your mathematical reasoning.

*February 9, 2017 by Don't need to know. Sorry*

**science**

(c) Because static friction can adjust, the system can be at rest if the mass of block C is between some maximum value and some minimum value. What are these values if the coefficient of static friction between block B and the table is 0.200?

*January 6, 2016 by xxxxxxx*

**physics**

A ball of mass 3.0 kg is tied to the end of a 50-cm length of string. The ball and string are swung in a circle in a vertical plane at constant speed v, which is the minimum speed necessary to keep the string taut at all times. The center of the circle is a distance h= 190 cm ...

*April 18, 2013 by mike richards*

**Marketing**

How does Tropicana use the marketing mix? By marketing mix, I am referring to the 4 P’s of Marketing- Price, Product, Place and Promotion

*January 29, 2012 by Christopher*

**math**

the price of a computer fell 20% this year, if the computer now cost $850, how much did it cost last year?

*September 26, 2014 by Barbara*

**Math**

A 9.2 ounce can of tomato juice costs $3.48. What is the price per ounce of the tomato juice to the nearest cent?

*November 8, 2016 by Vivian*

**microeconomics**

. For each event, illustrate the impact on the relevant market and determine what will happen to the equilibrium price and quantity in that market. (40 points – 10 points per line item) Event Market for: Show which curve shifts Equilibrium price rise or fall? Equilibrium ...

*November 22, 2010 by tony swift*

**Macroeconomics**

Suppose that velocity is constant. The economy's output of goods and services rises by 5% each year. What will happen to nominal GDP and the price level next year if the Fed keeps the money supply constant? (Hint--put the variables into the formula) Help!

*November 16, 2009 by a-tan*

**phys.**

suppose your local electric company charges $0.0650/kWxh for the first 200.0 kWxh, and then drastically raises the price for every kilowatt-hour more. What is the maximum you family would pay if they wanted to pay only the cheaper rate?

*January 11, 2010 by Sienna*

**Prin Finance**

Your company pays a dividend of $2.35 per share and expects no growth in this dividend at all, it will remain at this level indefinitely in management’s opinion. Theoretically what will this stock’s price be today if investors require an 8% rate of return on all such ...

*March 14, 2010 by Donald*

**math**

I just started the 5th grade and I don't understand one of my math problems. The problem is Mr. Smith bought 2 similar T-shirts and a belt. He paid $100 to the cashier and received $13 in change. Find the cost of each T-shirt. (shouldn't the price of the belt be in the question?)

*August 10, 2011 by Ty*

**Finance**

. Suppose the December CBOT Treasury bond futures contract has a quoted price of 80-07. If annual interest rates go up by 1.00 percentage point, what is the gain or loss on the futures contract? (Assume a $1,000 par value, and round to the nearest whole dollar.)

*April 1, 2013 by KBrown*

**economics**

In your (imaginary) neighbourhood, the general consensus seems to be that 4 out of 5 cars are in good working order. The price for a good second-hand car is 2000$, while malfunctioning ones typically fetch 600$. (a) What is the expected value of a used car

*April 3, 2013 by kerry*

**Algebra**

Jane agrees to buy a car for a down payment of $4000 and payments of $260 per month for 9 years. If the interest rate is 9% per year, compounded monthly, what is the actual purchase price of her car? (Round your answer to the nearest cent.)

*August 10, 2015 by Melany*

**Math**

I got 21 years and it was wrong. Can you help me solve this problem? sometime ago, julie purchased 11 acres of land costing $15,590. Today, that land is valued at $55,433. How long had she owned this land if the price of the land has been increased at 5% per year?

*May 15, 2016 by Anonymous*

**Math**

5. Sales. An auto dealer’s sales numbers are shown in the table below. Find for each month the mean, median, and mode prices of the cars she sold. Round your answers to the nearest dollar. Price May June July $20,000 22 25 24 $15,000 49 24 24 $12,500 25 49 49

*December 18, 2016 by Jones*

**MATH**

5. Sales. An auto dealer’s sales numbers are shown in the table below. Find for each month the mean, median, and mode prices of the cars she sold. Round your answers to the nearest dollar. Price May June July $20,000 22 25 24 $15,000 49 24 24 $12,500 25 49 49

*December 19, 2016 by Jones*

**Check them please MAth**

1. Write the following ratio in simplest form: 32 min:36 min (1 point) 8:98:3632:9128:144 2. Marie saved $51. On Wednesday, she spent $8 of her savings. What ratio represents the portion of her total savings that she still has left? (1 point) 43:88:5143:5159:51 3. The price of...

*December 2, 2016 by Dipper Pines*

**com/155**

I received my first major credit card at the early age of eighteen. I was positively not ready for that responsibility. Shopping carelessly was not a wise decision. Within six month's, my credit was suffering tremendously. I had already reached my credit limit and could not ...

*October 6, 2010 by jackie henton*

**economics**

there are just certain things that i do not understand about the questions...(i did read A LOT last night and i did not find anything that really answered my questions)...To be more specific... suppose a competitive market consists of identical firms with a constant long run ...

*September 21, 2007 by michele*

**Economics**

For each pair of commodities, state which you think is the more price-elastic and gave your reasons: perfume and salt; penicillin and ice cream; automobiles and automobile tires; ice cream and chocolate ice cream.

*January 12, 2011 by Michael M.*

**arithmetic**

When Joe died he had 1200 acres of apple orchards. Rebecca wants to plant four apple trees. She was told to plant them 8 to 33 feet apart. If she plants the trees at the four corners of a square, what is that minimum number of square feet in her tiny orchard

*February 8, 2012 by Najhee*

**Algbrea**

sapphire island is open 7 days a week the park has 8 ticket booth and each booth has a ticket seller from 10:00 AM to 5:00 PM on average ticket sellers work 30 hours per week write an equation that can be used to find t the minimum number of ticket sellers the park needs

*August 30, 2015 by Sarah*

**economics**

If a country sells a currency dollar would the exchange rate price be the currency/dollar or dollar/currency and what will the demand be.

*April 16, 2008 by Julie*

**ECO301**

Give an example of a shift in consumer and producer surplus. How did it affect the market efficiency? Any non-subsidized farm product is a good example. Consider the local orchardists who sell peaches. When the weather is perfect, there is an abundance of the fruit. Since each...

*May 27, 2007 by tracey*

**Algebra**

Two fraternities, Sig Ep and Ep Sig, plan to raise money jointly to benefit homeless people on Long Island. They will sell Yoda vs. Alien T-shirts in the student center, but are not sure how much to charge. Sig Ep treasurer Augustus recalls that they once sold 140 shirts in a ...

*February 21, 2012 by Jane*

**Physics**

The drawing shows a circus clown who weighs 750 N. The coefficient of static friction between the clown’s feet and the ground is 0.630. He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the minimum pulling force that...

*April 7, 2015 by Kristyn*

**Maths - Differentiation**

A closed rectangular box is made with sides of length (in cm) 2x,2x and y respectively. The volume of the box is 64cm^3. A) show that the surface area (six faces) of the box is given by: A = 8x^2+128/x B)find the Valur of x for which dA/dx=0 C)find d^2A/dx^2 and use it to ...

*January 28, 2016 by Anonymous*

**child day care**

The Licensing for the staff/child ratio in a classroom of three year old is 1:10. You have 22 three year old in your center. What is the minimum number of staff you need to meet the licensing ?

*September 26, 2013 by Anonymous*

**math**

Which one of the following statements is true? If f is continuous on (a, b), then f attains an absolute maximum value and f attains an absolute minimum inside the interval (a, b). If f '(x) > 0 on the interval (a, b), then f is decreasing on the interval (a,b) If f and g ...

*February 3, 2015 by Mark*

**math**

he graph of the range of scores for the games is shown below. The inequality for the graph can be expressed as 32 ≤ r ≤ m where r is the minimum range of the scores in any of the games and m is the maximum range. What is the value of m?

*April 12, 2011 by siair*

**math**

The graph of the range of scores for the games is shown below. The inequality for the graph can be expressed as 32 ≤ r ≤ m where r is the minimum range of the scores in any of the games and m is the maximum range. What is the value of m?

*April 15, 2012 by ahmed*

**physics**

A 12-kg turtle rests on the bed of a zookeeper’s truck, which is traveling down a country road at 55 mi/h. The zookeeper spots a deer in the road, and slows to a stop in 12 s. Assuming constant acceleration, what is the minimum coefficient of static friction between the ...

*February 19, 2010 by mary*

**physics**

A 12-kg turtle rests on the bed of a zookeeper’s truck, which is traveling down a country road at 55 mi/h. The zookeeper spots a deer in the road, and slows to a stop in 12 s. Assuming constant acceleration, what is the minimum coefficient of static friction between the ...

*February 19, 2010 by mary*

**help with math please**

a gardner wishes to encloe a rectangular 3000 square feet area with bushes on three sides and a fence on the 4th side .If the bushes cost $25.00per foot and the fence costs $10.00 per foot, find the dimensions that minimize the total cost and find the minimum cost

*March 30, 2010 by princess*

**statistics**

the admissions policy at a certain university requires that incoming students score in the upper 20% on a standardized test. if the mean score on the test is 510 and the standard deviation of the scores is 80, what is the minimum score that a student can earn on the test to ...

*December 15, 2011 by Anonymous*

**statistics**

the admissions policy at a certain university requires that incoming students score in the upper 20% on a standardized test. if the mean score on the test is 510 and the standard deviation of the scores is 80, what is the minimum score that a student can earn on the test to ...

*December 15, 2011 by Anonymous*

**statistics**

A researcher wishes to estimate the mean height of women aged between 60 and 65 in the US. She desires a margin of error of 0.2 inches. Past studies suggest that a population standard deviation deviation of 3.2 inches is reasonable. Estimate the minimum sample size needed to ...

*January 23, 2012 by dan*

**math**

A silo is to be made in the form of a cylinder surmounted by a hemisphere. The cost of construction per square foot of surface area is twice as great for the hemisphere as for the cylinder. Determine the dimensions to be use (in terms of V) if the volume is fixed at V and its ...

*August 7, 2012 by ibranian*

**Math**

The length of a picture is 15cm more than its width. The picture frame has a width of 4cm. What is the minimum length of material needed to make the frame for this picture? *I am not good a Maths at all and even though i've tried to get help, I just dont seem to get it; its ...

*February 5, 2017 by Saphia*

**Physics**

an athlete drops from rest from a platform 10m above the surface of a 5m deep pool. Assume that the athlete enters the water vertically and moves through the water with the constant acceleration, what is the minimum average force with water must exert on a 62 kg diver to ...

*October 3, 2012 by Linda*

**Followup-Calculus-Extrema**

Find and classify the relative maxima and minima of f(x) if f(x)= defint a=0 b=x function= t^2-4/(1+cos(t)^2) dt x^2-4/(1+cos(x)^2)= 0 x^2-4=0 x^2=4 x= +/- 2 So I got relative maximum as -2 and 2. And relative minimum as zero. However, when I graph it on Wolfram, it gives me ...

*May 17, 2013 by Eric*

**Physics**

A driver in a car traveling at a speed of 55.4 mi/h sees a deer 116 m away on the road. Calculate the minimum constant acceleration that is necessary for the car to stop without hitting the deer (assuming that the deer does not move in the meantime). I simply do not know how ...

*January 25, 2015 by Rachel*

**chem**

i am trying to find the minimum volume of hot water needed to dissolve 100 mg of salicylic acid. when i did the calculations i got 100 ml of hot water is this correct?? The data is [temp] [amount of salicylic acid per 100 ml water, g] 0 0.10 10 0.13 25 0.23 50 0.63 75 1.8 90 3.7

*October 13, 2008 by nancy*

**chem**

i am trying to find the minimum volume of hot water needed to dissolve 100 mg of salicylic acid. when i did the calculations i got 100 ml of hot water is this correct?? The data is [temp] [amount of salicylic acid per 100 ml water, g] 0 0.10 10 0.13 25 0.23 50 0.63 75 1.8 90 3.7

*October 13, 2008 by nancy*

**Chemistry**

What is the minimum amount of ice (at 0 degress C) that must be added to 250mL of water at 23 degrees C in order to cool it to 0 degrees celsius? (Density of water= .98 g/cm^3; heat of fusion= 333J/g; heat capacity of water= 4.184J/g C; and heat capacity of ice= 1.86 J/g C)

*April 3, 2011 by Kayla*

**allied health**

If disclosure of PHI is permitted under HIPAA, What is disclosed? A. Information both the patient and doctor think should be disclosed B. the minimum information necessary to accomplish the purpose of the disclosure C. Information the doctor thinks should be disclosed

*May 28, 2016 by tina*

**Statistics**

Any ideas please? Simple random sample of voters will be taken in a large state. Researchers will construct an approximate 95% confidence interval for the percent of the state¢s voters who will vote for Candidate A. Find the minimum sample size needed to ensure that the width...

*July 24, 2013 by Andrew*

**chemistry**

Dissolved Oxygen in aquatic systems is important for the survival of small freshwater fish and they require a minimum amount of 5 parts per million of dissolved oxygen in a stream or lake to survive comfortably. Although this amount seems quite small, how many oxygen molecules...

*January 5, 2015 by Bren*

**Physics**

A square has sides of length L. In the lower-right and lower-left corners there are two sources of light waves, one in each corner, that emit identical in-phase light waves of wavelength 8.28 m in all directions. What is the minimum value of L such that constructive ...

*March 29, 2016 by A*

**physics**

an engine block of mass 275kg rest on a plane which is inclined at 13 degrees to the horizontal.if the plane can be tilted to a maximum angle of 21 degrees before the engine block slide due to its weight.calculate the minimum force parallel to the plane required to move the ...

*October 6, 2010 by charles*

**math**

Answer the following questions for the function f(x)=sin^2(x/5) defined on the interval .(-15.507923,3.82699075) Rememer that you can enter "pi" for as part of your answer. a.what is f(x) concave down on the region B. A global minimum for this function occurs at C. A local ...

*November 5, 2011 by li*

**economics**

What is the effective marginal tax rate of a government antipoverty program that guarantees every family a minimum income? Explain. Why might trying several antipoverty benefits to income level lead to an effective marginal tax rate of greater than 100 percent?

*November 22, 2014 by BB*