Saturday

August 30, 2014

August 30, 2014

Post a New Question | Current Questions

**physics**

A heat engine absorbs 848 J of energy per cycle from a high-temperature source. The engine does 417 J of work during each cycle, expelling 431 J as heat. What is the engine’s eﬃciency?
*Thursday, April 25, 2013 at 1:18am*

**algebra1**

the school bought a new copy machine which makes 20 copies per minute.the old machine makes 12 copies per minute.francine needs 1000 copies,so she uses both machines.how long will it take to have the copies
*Thursday, April 25, 2013 at 12:08am*

**Algebra**

One more... Faye wants to know how tall her school building is. On a sunny day, she measures the shadow of the building to be 6 feet. At the same time, she measures the shadow cast by a 5 foot statue to be 2 feet. How tall is her school building? Thank you so much for your help.
*Wednesday, April 24, 2013 at 9:54pm*

**english**

these are questions based on the book to kill a mockingbird 1. how does atticus explain to scout a way of getting along in school and with other people, in chapter 3 2. why does atticus think it is just as well that the ewells do not attend school, chapter 3 3. what does his ...
*Wednesday, April 24, 2013 at 7:33pm*

**Physical science**

A ball is thrown up at 8m.s from the roof which is 60m high.it strikes the balcony below after 4s.the ball then bounces off the balcony and strikes the ground.ignore the effects of friction.calculate magnitude of the velocity at which the ball strike the balcony?
*Wednesday, April 24, 2013 at 4:08pm*

**math**

If a rocket is shot upward with an initial speed of 176 feet per second from a platform 64 feet above the ground, when will the rocket be at its maximum height and how high will it be? Hint: The graph of a parabola is symmetric.
*Wednesday, April 24, 2013 at 12:25pm*

**statistikc **

We want a confidence interval for the mean IQ of all the 7th grade girls in that school district. We do not know the population standard deviation so we use the confidence interval that uses the t. In order to use the t-interval we need to assume that the variable IQ has a ...
*Wednesday, April 24, 2013 at 11:15am*

**algebra1**

the school bought a new copy machine which makes 20 copies per minute.the old machine makes 12 copies per minute.francine needs 100 copies,so she uses both machines.how long will it take to have the copies
*Tuesday, April 23, 2013 at 11:04pm*

**biology**

In a natural population of outbreeding plants, the variance of the total number of seeds per plant is 16. From the natural population, 20 plants are taken into the laboratory and developed into separate true-breeding lines by self-fertilization—with selection for high, ...
*Tuesday, April 23, 2013 at 6:45pm*

**Psychology**

Janet has been attending Killian High School for three years. At the beginning of her senior year, she is enrolled in Ms. Brosham's AP English Class. She heard from her two older siblings that Ms. Brosham was a hard-nosed, crusty teacher who did not tolerate uncertainty. ...
*Tuesday, April 23, 2013 at 4:06pm*

**statistics**

2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule? 3. If we are focused on 68% of the normal distribution, what percentage of the distribution is left in the upper tail only? 4. What value separates the 50% of the ...
*Tuesday, April 23, 2013 at 3:43pm*

**English**

Take the subject you explored in Part 1 of Submission 2 and narrow it down so that it can be covered in one paragraph. You might use one of the two techniques below. 1. Use one incident from the Answers column of your chart to illustrate an idea. Example: Writing Idea: Fads ...
*Tuesday, April 23, 2013 at 2:58pm*

**khesethwane sec school**

hw to address air pollution
*Tuesday, April 23, 2013 at 1:29pm*

**Medical Billing and Coding**

1. You're an outpatient coder in Dr. Smith's office. When you code procedures, you're probably using _______ codes. A. ICD-10-CM B. ICD-9-CM C. HCPCS D. CPT ANSWER 2. You're a coder who's reviewing the record of a 62-year-old woman who was admitted to the ...
*Tuesday, April 23, 2013 at 1:16pm*

**english Ms. Sue Help Please check my answers**

Jaws of the Water ACT TWO At rise we see DAD, TINA, and MARK rushing in and out of the living room. Each enters carrying important items—such as sleeping bags, rain gear, and gallons of water—sets them down, and exits. All three come in together, and MOM bursts ...
*Tuesday, April 23, 2013 at 12:40pm*

**Operations Research**

The Ploughman family farm owns and operates a 640-acre farm that has been in the family for several generations. The Ploughman’s always have had to work hard to make a decent living from the farm and have had to endure some occasional difficult years. Stories about ...
*Monday, April 22, 2013 at 9:10pm*

**Math**

Shaun rides 8 kilo meters west from his house to school. After school he rides 6 kilo meters north to Mario's house. What is the distance from Mario's house to Shaun's house measured in a straight line?
*Monday, April 22, 2013 at 9:07pm*

**Medical Billing & Coding**

1. You're an outpatient coder in Dr. Smith's office. When you code procedures, you're probably using _______ codes. A. ICD-10-CM B. ICD-9-CM C. HCPCS D. CPT ANSWER 2. You're a coder who's reviewing the record of a 62-year-old woman who was admitted to the ...
*Monday, April 22, 2013 at 8:53pm*

**Math**

The school bus stops at Randy's stop at 8:15 a.m. Randy arrived at the bus stop at quarter after 8. Did he miss the bus? Explain.
*Monday, April 22, 2013 at 7:52pm*

**Study?**

I have to take a test tomorrow on math to decide whether or not I can make it into the next grade same for tomorrow for reading. What should I do to study? I don't have a textbook to study cause it's at school. Should I look over my notes on everything I covered in ...
*Monday, April 22, 2013 at 7:48pm*

**constitution/essay**

Write your paper about a hypothetical proposal that is before the elected school board for the public schools in your city. The proposal stirs deep controversy in the community. Opponents claim that it would violate the Constitution’s prohibition against an “...
*Monday, April 22, 2013 at 7:13pm*

**Art Appreciation**

Compare Raphael's School of Athens with Veronese's Christ in the House of Levi. How did each work reflect the environments of Rome or Venice?
*Monday, April 22, 2013 at 11:19am*

**Principles of Management**

Question 1 of 20 5.0 Points Which of the following is NOT a benefit of planning? A. Helps you check on your progress B. Helps you think ahead C. Helps you cope with uncertainty D. Helps you compare your results to a standard Reset Selection Question 2 of 20 5.0 Points XYZ ...
*Monday, April 22, 2013 at 9:51am*

**High School Diploma - Writing Skills**

Pennfoster - Questions 1 - 20 I need to compare the answer. Please help.
*Monday, April 22, 2013 at 9:02am*

**college physics**

How many seconds would it take a 7.00hp motor to raise a 475 lb boiler to a platform 38.0 ft high?
*Monday, April 22, 2013 at 8:18am*

**Physics**

Neglecting air resistance, how high could a 0.15kg baseball be thrown if it is throw straight up at a speed of 25m/s?
*Monday, April 22, 2013 at 12:05am*

**MATH HELP!!!!!!!!!!**

If the first bell is at 8:12 but the all the buses are at the school at 8:00 (around 8:05 they let all the students out of the bus). It's takes 41 minutes from home to get to school. What time does your bus comes in the morning and what time you have to walk up? please ...
*Saturday, April 20, 2013 at 8:45pm*

**COOP Exam?? (practice)**

Is there any online COOP exam I can practice to pass that COOP exam I'm taking (I'm applying to catholic high school. It's a private school). This what it will be on the exam: Test 1 Sequences This test measures the student’s ability to comprehend a rule or ...
*Saturday, April 20, 2013 at 5:52pm*

**Daycare managment**

1. Which of these is a benefit of unstructured outdoor play? A. Learning of rules B. Emotional well-being C. Video game skill D. Learned helplessness 2. Children are considered obese when they're ______ percent over their ideal body weight. A. 15 B. 10 C. 20 D. 40 3. A(n) ...
*Saturday, April 20, 2013 at 4:29pm*

**chemistry**

At high temperature, 2.00 mol of CH2O was placed in a 4.00 L container where it decomposed via the equilibrium CH2O(g)<=>CO(g)+H2(g) . At equilibrium, the concentration of CO was measured to be 0.0317 M. What is Kc for this reaction at this temperature?
*Saturday, April 20, 2013 at 9:56am*

**theology class????**

I'm Christian and I'm applying to a catholic high school (due to the budget cuts in my district). The thing is that I'm required to take theology (Religion class) for four years of high school. ... I'm just wondering, it's theology interesting, fun... and ...
*Saturday, April 20, 2013 at 9:07am*

**westonaria high school**

Critically discuss 6 Ways in which the drought can impact negatively in one's health
*Saturday, April 20, 2013 at 8:17am*

**Animal. Homework**

Do male dogs go through heat? My girlfriend asked me to look it up for her school, but neither of us are finding it.
*Friday, April 19, 2013 at 4:05pm*

**P&P**

Peter is walking from the library to school at a rate of 40 meters per minute. At the same time, Paul is walking from school to the library. After they meet each other, Peter still needs 6 minutes to get to school, while Paul is 200 meters away from the library. What is the ...
*Friday, April 19, 2013 at 3:31pm*

**Probability**

If 5 juniors and 4 seniors apply for a job at a school which has 2 openings, what is the probability that 1 junior and 1 senior will be randomly chosen for the job.
*Friday, April 19, 2013 at 12:52pm*

**Algebra**

A shingle falls straight down from the roof of a building that is 144 feet tall. a. Use a vertical motion model to write an equation that gives the height h of the shingle t seconds after it falls. b. When does the shingle hit the ground? c. If the same shingle were dropped ...
*Thursday, April 18, 2013 at 9:13pm*

**math**

melissa walks 1 and a half miles to school. After school she walks 7 eights of a mile to the park. how many more miles does she walk to school?
*Thursday, April 18, 2013 at 8:08pm*

**Math**

4.At the school pep rally 3 out of 7 students wore colors. Based on this info if 350 students attend the next pep rally how many of these students will wear school colors A.150 B>50 C>200 D.not here A
*Thursday, April 18, 2013 at 7:22pm*

**Maths/ Calc**

Supplies are dropped from a stationary (not moving up or down) helicopter and, after some amount of time, land on the ground with a velocity of -160 feet per second. Assumptions: Start time at t = 0 and ignore air resistance. Recall that the height function is given by y(t)= ...
*Thursday, April 18, 2013 at 6:46pm*

**Math**

Melanie is going to read a 219 page book. She reads at a rate of 20 pages per day. BAsed on this info which of the following statements is a reasonable conclusion A.she will have read less than 1/2 of the book after 5 days B.She will have read more than 13 of the book after 3 ...
*Thursday, April 18, 2013 at 5:52pm*

**Math**

Max asked 50 students in his school which breakfast cereal they prefer. The table below shows the results of his survey. What decimal represents the fraction of students who prefer Fruit Crunchies? 12 like Yummy Flakes 25 like Choco Crunch 13 Like Fruit Crunchies .6 2.Emmer is...
*Thursday, April 18, 2013 at 5:33pm*

**History**

4. Which of the following influenced the presidential election of 1980? high inflation low gas prices racial tensions *a war with Iraq Thank You.
*Thursday, April 18, 2013 at 11:32am*

**chemistry**

Suppose you do not know the enthalpy of decomposition of the process: CaCO3 = CaO + CO2 Explain in terms of thermodynamic parameters why heating to a high temperature might turn this decomposition to a spontaneous process.
*Thursday, April 18, 2013 at 10:10am*

**LIFE ORIENTATION**

RECOMMENDATIONS ON HOW TO ADRESS PRACTISE OF HIGH RISK SEXUAL BEHAVIOUR AMONG ADOLESCENTS
*Thursday, April 18, 2013 at 7:54am*

**Statistics**

A high school counselor is interested in the percentage of students who will be going to college. She randomly picks 60 students and finds that 53 will be going to college. Use a 95% confidence level to find the population proportion. a) State the 95% confidence interval for ...
*Wednesday, April 17, 2013 at 11:20pm*

**Math**

pedro and maria spend the same amount of time driving to school. pedr average is 50 mph and maria's average is 30 mph. pedro drives 10 miles farther than maria, how long does each drive to school?
*Wednesday, April 17, 2013 at 10:51pm*

**math**

160 blocks , each block is 2 cm wide, 1 cm long & 4 cm high, what will be size of box that will hold all 160 blocks (each side cannot be less than 6 cm)
*Wednesday, April 17, 2013 at 9:55pm*

**English**

11.Financiers are planning to (accommodate amalgamate) various businesses in the US and England into one huge multinational corporation amalgamate 12.The US has a long history of providing (upheaval sanctuary) to those fleeing persecution abroad sanctuary 13.He enjoys (...
*Wednesday, April 17, 2013 at 9:52pm*

**statistics**

A researcher wants to compare the variances of the heights (in inches) of 4 year college basketball players with those of players in junior colleges. A sample of 30 players from each type of school is selected, and the variances of the heights for each type are: 4 year ...
*Wednesday, April 17, 2013 at 9:30pm*

**physics**

A 0.49 cm high object is placed 8.5 cm in front of a diverging lens whose focal length is -7.5 cm. What is the height of the image?
*Wednesday, April 17, 2013 at 8:41pm*

**Physics **

If a marble of mass 4.0 kg and radius 0.2 m is rolling up an incline at 10 m/s and the incline is h meters high, what minimum height must that incline be in order for the marble to stop while on the incline?
*Wednesday, April 17, 2013 at 6:49pm*

**ocho rios primary school**

what is the plural of the word man.
*Wednesday, April 17, 2013 at 5:54pm*

**history**

Between 1947 and 1951, what did the loyalty boards that were established to root out subversives in government service do? a. They uncovered evidence of massive subversion and espionage within the Departments of State and Defense. b. They restricted their investigations to ...
*Wednesday, April 17, 2013 at 3:39pm*

**PHYSICS**

A small block of mass 0.5 kg is released from rest at the top of a ramp of mass 3 kg that sits on a frictionless horizonal surface. When the block leaves the ramp it has a speed of 4 m.s a)what is the recoil velocity of the ramp b) how high is the ramp?
*Wednesday, April 17, 2013 at 1:16pm*

**Science**

how to find the speed of a bullet just before it touches the ground when fired horizontally at a velocity 10 m/s from a watch tower 11.5 m high?
*Wednesday, April 17, 2013 at 12:56pm*

**Math**

What are the measurements of a box that will hold 160 blocks that are 2 centimeters wide, 1 centimeter high, and 4 centimeters long?
*Wednesday, April 17, 2013 at 12:25pm*

**Physicsy**

a ball thrown 45m high speed of 10m/s at what time reach the top?
*Wednesday, April 17, 2013 at 6:16am*

**Physics(science)**

A ball's projected at an angle X to the horizontal from a cliff 96 metres high and strikes the ground at a distance of 260 metres away from the cliff.The time of its flight is 7 seconds.If it's assumed that air resistance's negligible,calculate: 1.the initial ...
*Wednesday, April 17, 2013 at 4:58am*

**statistic**

A sample of 59 night-school students' ages is obtained in order to estimate the mean age of night-school students. x = 25 years. The population variance is 19. (a) Give a point estimate for μ. (Give your answer correct to one decimal place.)
*Tuesday, April 16, 2013 at 9:35pm*

**Clinical Chemistry**

Anyone here good with clinical chemistry, particularly separation assays and high performance liquid chromatography?
*Tuesday, April 16, 2013 at 9:01pm*

**Math**

Which is in order from least to greatest A.1/4,0.33,2/5,0.5,2/3 B.1/3,1/2,0.4,0.25,2/3 C.1/3,1/4,0/4,1/2,0.66 D.2/3,0.5,2/5,0.33,1/4 A Talent Show auditions were held after school. There were 3 groups who sang for every 2 groups that danced. If there were a total of 30 groups ...
*Tuesday, April 16, 2013 at 6:10pm*

**writing**

Hello, could someone please look over my English/writing assignment. Any input will help. Not finish still working on end. THANKS A Gift of dying is a Lesson in Living “The truth is once you learn how to die, you learn how to live.” (Albom, 1997, pg. 82). The poem &#...
*Tuesday, April 16, 2013 at 2:20pm*

**Life science,Maths and Geography**

I am in my last year of high school and not sure of which career path to follow.Please help me with all possible careers to choose from.
*Tuesday, April 16, 2013 at 10:40am*

**child development**

Johnny is a 5-year-old kindergarten student starting school for the first time. What changes do you expect to see Johnny go through in the course of his first year of school? Be specific in your response, addressing changes in his physical, emotional, and cognitive domains. ...
*Tuesday, April 16, 2013 at 10:37am*

**Math/ Calculus Help1**

Supplies are dropped from a stationary (not moving up or down) helicopter and, after some amount of time, land on the ground with a velocity of -160 feet per second. Assumptions: Start time at t = 0 and ignore air resistance. Recall that the height function is given by y(t)= ...
*Tuesday, April 16, 2013 at 1:17am*

**U.S/history AP**

1)--------practice in the south of borrowing the money necessary to plant a crop against that future crop.The money was loaned at excessively high interest rates and kept most white and black southerners in perpetual debt. my answer 1-crop-lien economy 2---------former ...
*Monday, April 15, 2013 at 6:08pm*

**Geometry **

The grade of a road or a railway road bed is the ratio rise/run, usually expressed as a percent. For example, a railway with a grade of 5% rises 5 ft for every 100 ft of horizontal distance. 1. The Johnstown, Pennsylvania, inclined railway was built as a "lifesaver" ...
*Monday, April 15, 2013 at 5:23pm*

**physics**

A projectile of mass 0.817 kg is shot straight up with an initial speed of 25.5 m/s. (a) How high would it go if there were no air resistance? (b) If the projectile rises to a maximum height of only 9.14 m, determine the magnitude of the average force due to air resistance.
*Monday, April 15, 2013 at 2:36pm*

**life orientation**

described the pratice of high risk sexual behavior amongs the adolescene
*Monday, April 15, 2013 at 10:11am*

**Geometry Part 2**

A highway makes an angle of 6 with the horizontal.This angle is maintained for a horizontal distance of 5 miles.To the nearest hundredth of a mile, how high does the highway rise in this 5- mile section?Show the steps you use to find the distance.
*Monday, April 15, 2013 at 10:03am*

**Livingston High**

61/3 =
*Monday, April 15, 2013 at 3:31am*

**algebra**

the elspaso middle school girls basketball team is going from el paso to san antonio for the texa state championship. The trip will be 560 miles. Their bus travels at an average speed 60 miles per hour.
*Sunday, April 14, 2013 at 10:56pm*

**math**

Marty walks to school 4 days each week. The walk talks 15 minutes. How much time does it take marty to walk to school & home each week. Is this correct? 15×4=60 it takes him an hour each week
*Sunday, April 14, 2013 at 8:38pm*

**english plzzzzzzzzz helppppp**

1-Our small community hasn't never had so many choices of bicycle shops. a-Our small community has hardly never had so many choices of bicycle shops. b-Our small community has never had so many choices of bicycle shops. c-Our small community hasn't hardly ever had so ...
*Sunday, April 14, 2013 at 6:39pm*

**philosphy**

I am to draft a six to eight page paper based upon a life changing decision that I or someone in my community had to make. I am considering writing about returning back to school but I am stuck on how to get started. Can someone please help.
*Sunday, April 14, 2013 at 11:13am*

**geography**

What regions have low or high annual precipitation?
*Saturday, April 13, 2013 at 7:36pm*

**catherine junior school**

I have 9 Numbers which are -4, -3, -2, -1, 0, 1, 2, 3, 4 i have to put these in a 3 x 3 square grid. The numbers have to add up to one majic number. Is there a logical way to do this??????
*Saturday, April 13, 2013 at 12:12pm*

**Math**

5.Mrs.Sandoval has 60 folders, 45 scissors, and 30 rulers. What is the largest number of equally divided school supply groups Mrs.Sandoval can create without any remaining supplies? A.5 B.10 C.3 D.15 D 6.What is the prime factorization of 550? A.2x5^2x11 7.What is the value of...
*Saturday, April 13, 2013 at 11:41am*

**Math**

1.A maximum of 149 students are allowed to be seated in the cafeteria at one time. The school janitor has already placed 8 tables that seat 9 students each. The remaining tables to be placed seat 7 students each. How many of the remaining tables can the janitor place in the ...
*Saturday, April 13, 2013 at 11:06am*

**chemistry**

Which of the following statements describes why ion exchange of 99% SiO2 - 1% B2O3 in a salt bath of molten postassium chloride (KCl) is not an effective way to increase the surface strength of the glass sample? The ion exchange works correctly, however both air-cooling and ...
*Saturday, April 13, 2013 at 5:46am*

**physics**

Tarzan (m = 68kg) swings down from a height of 4.8m on a vine to save Jane (m = 35kg) from some hungry hippos. if he gravs jane in an inelastic collision at the bottom of the vine's path, how high will they swing up to after the collision?
*Saturday, April 13, 2013 at 12:22am*

**chemistry**

Which of the following statements describes why ion exchange of 99% SiO2 - 1% B2O3 in a salt bath of molten postassium chloride (KCl) is not an effective way to increase the surface strength of the glass sample? a -The ion exchange works correctly, however both air-cooling and...
*Friday, April 12, 2013 at 6:50pm*

**personal**

Lilly collects data on a sample of 40 high school students to evaluate whether the proportion of female high school students who take advanced math courses in high school varies depending upon whether they have been raised primarily by their father or by both their mother and ...
*Friday, April 12, 2013 at 4:49pm*

**child daycare**

1. A _______-centered program is most helpful to the children served. A. family B. child C. school D. parent 2. The vision and goals of an afterschool program should be translated into a A. preprietorship. B. parent letter. C. newsletter. D. mission statement. 3. Which of the ...
*Friday, April 12, 2013 at 2:18pm*

**math**

The school meeting is on the 199th day of the calendar year, in (what month)?
*Thursday, April 11, 2013 at 8:50pm*

**algebra1**

a baseball is hit into the air. the path of the ball can be described by the equation h=23t-5tsquared, where h is the height in meters, and t is the time in seconds. how high is the ball after 3 seconds?
*Thursday, April 11, 2013 at 6:23pm*

**social studies**

I am to draft a six to eight paper based on a life changing decision me or someone in my community has to make. I am considering writing about returning to school but I am not sure how to start. Any suggestions.
*Thursday, April 11, 2013 at 4:28pm*

**HIGH SCHOOL DIPLOMA - Writing Skills 1**

1. Which of the following is correct in regard to the use of formal English? A. Formal English is used more frequently in speaking than in writing. B. In formal business correspondence, it's best keep the language impersonal. C. Contractions are considered acceptable in ...
*Thursday, April 11, 2013 at 4:25pm*

**statistics**

The average height of 18-year-old American women is 64.2 inches. You wonder whether the mean height of this year’s female graduates from your local high school is different from the national average. You measure an SRS of 78 female graduates and find that = 63.1 inches. ...
*Thursday, April 11, 2013 at 10:25am*

**physics**

a 40 kg student is riding a bicycle to school. the bicycle has a mass of 12 kg. the area that each tire makes contact with the road can be approximated by a rectangle of dimensions 6 cm x 4 cm. what is the pressure that each tire exerts on the road? give your answer in kPa to ...
*Wednesday, April 10, 2013 at 11:22pm*

**physics**

a 40 kg student is riding a bicycle to school. the bicycle has a mass of 12 kg. the area that each tire makes contact with the road can be approximated by a rectangle of dimensions 6 cm x 4 cm. what is the pressure that each tire exerts on the road? give your answer in kPa to ...
*Wednesday, April 10, 2013 at 11:20pm*

**physics**

a 40 kg student is riding a bicycle to school. the bicycle has a mass of 12 kg. the area that each tire makes contact with the road can be approximated by a rectangle of dimensions 6 cm x 4 cm. what is the pressure that each tire exerts on the road? give your answer in kPa to ...
*Wednesday, April 10, 2013 at 11:17pm*

**English**

Posted by rfvv on Sunday, April 7, 2013 at 11:03pm. Pansori is a kind of Korean folk play. 1. Bill is doing pansory at the school talent show. 2. Bill is presenting pansory at the school talent show. 3. Bill is acting out pansory at the school talent show. (Q1: Which one is ...
*Wednesday, April 10, 2013 at 10:26pm*

**LA**

jerry came to school incognito like superman in his clark kent glasses question; as used in the passage what does incogonito mean ? a. strength b. in a cape c. dressed formally D. disguised i pic C or D am i cerrect?
*Wednesday, April 10, 2013 at 7:44pm*

**algebra**

the local high school is setting up square-shaped lunch tables in the cafeteria. each table has an area of 12x^3-4x^2 square feet. if sqrt 3x+1 tables are put end to ed to form a banquet table, how long will the banquet table be? assume x>1/3 part 1: use theformula for area...
*Wednesday, April 10, 2013 at 6:25pm*

**physics**

Venus is a grade 12 learner and she claims that she can shoot a stone 50m vertically high by using a catapult.She wants to know the relationship between the height reached by the stone and the initial velocity of it.
*Wednesday, April 10, 2013 at 12:44pm*

**Reiny: Set Theory**

School counselor posted the following data after having had 150 students sign up for electives: Art - 65 students Band - 70 students Theatre - 50 students Not all students signed up for an elective.Show the data using Venn Diagrams. Shown with problem: three intersecting ...
*Wednesday, April 10, 2013 at 11:53am*

**Physics**

Help! Calculate the water pressure at the bottom of the 110--high water tower
*Wednesday, April 10, 2013 at 11:18am*

**chemistry**

Which of the following statements describes why ion exchange of 99% SiO2 - 1% B2O3 in a salt bath of molten postassium chloride (KCl) is not an effective way to increase the surface strength of the glass sample? a) The ion exchange works correctly, however both air-cooling and...
*Wednesday, April 10, 2013 at 8:59am*

**chemistry**

Which of the following statements describes why ion exchange of 99% SiO2 - 1% B2O3 in a salt bath of molten postassium chloride (KCl) is not an effective way to increase the surface strength of the glass sample? a)The ion exchange works correctly, however both air-cooling and ...
*Wednesday, April 10, 2013 at 8:39am*

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