Tuesday

September 2, 2014

September 2, 2014

**Recent Homework Questions About First Aid**

Post a New Question | Current Questions

**Algebra 2**

The sequence is defined by a recursion formula. Write the first four terms of the sequence: a_1=9; a_n=3a_n-1
*Thursday, August 7, 2014 at 10:44pm*

**Algebra 2**

Find the sum of the first 12 terms of this sequence: 9,4.5,2.25,... I believe that the pattern is dividing the term by 2,and I keep getting 7.9956 for the sum, but that is incorrect. Anyone understand this?
*Thursday, August 7, 2014 at 10:01pm*

**Physics**

A gun is fired parallel to the ground. At the same instant, a bullet of equal size and mass next to the muzzle is released and drops to the ground. Which hits the ground first and why? I think that the bullets will hit the ground at the same time because the bullet that is ...
*Thursday, August 7, 2014 at 9:36pm*

**Science **

Imagine that you are part of a research team that is working to control the spread of the Japanese beetle. This is an insect pest from Japan first discovered on the east coast of the United States in 1916. Since that time it has been spreading slowly south and west. The grubs ...
*Thursday, August 7, 2014 at 9:11pm*

**DENTAL ASSISTANT HELP PLEASE!!!!!!**

1)Each state has a dental board of examiners responsible for enforcing that particular state's Dental Practices Act (DPA). The DPA contains similar requirements for dentist conduct. Which of the following is not covered by the DPA? A. Americans with Disabilities Act (ADA...
*Thursday, August 7, 2014 at 7:34pm*

**psychology (check answer)**

Adolescent women are most likely to use contraception: a. During their first experience of sexual intercourse. My answers is A b. If they already have one baby. c. If they have been involved in a steady relationship. d. If they have just met their sexual partners.
*Thursday, August 7, 2014 at 4:10pm*

**physics**

A particle undergoes two displaments , measured from the positive x-axis, with counterclockwise positive.The first has a magnitude of 11 m and makes an angle of 88 with the positive x-axis. The resultant displacement has a magnitude of 6.8 m direceted at an angle of 115 from ...
*Thursday, August 7, 2014 at 3:27pm*

**physics 2**

- Matter is made of charged particles - The motion of charged particles produces electromagnetic waves - Since light is an electromagnetic wave, the color of a substance is ultimately related to the way that charged particles in that substance can move around. Quantum ...
*Thursday, August 7, 2014 at 1:47pm*

**mathematics word problems**

Club members wrote a program together, with several people working on each of 4 parts. If the first part of the program required 1/3 of the total time, the second part needed 1/2 of the remaining time, the third part took 30 minutes, and the fourth part took 60 minutes, how ...
*Thursday, August 7, 2014 at 1:45pm*

**molecular biology **

To confirm that the recombinant plasmids obtained were exactly what you wanted, you need to determine the DNA sequence of the PCR products found in several of the recombinant plasmids. To do this, you use the primer 5'-CACG-3'. You carry out a set of four dideoxy ...
*Thursday, August 7, 2014 at 6:44am*

**Psyc, statistics**

Introduction to Hypothesis Testing In an article entitled “Science and ethics in conducting, analyzing, and reporting psychological research” in the journal Psychological Science (1994), psychologist Robert Rosenthal examines the relationship between a researcher&#...
*Wednesday, August 6, 2014 at 5:41pm*

**anonymous**

The forms used in your coding area cost $100.00 per one thousand forms for the first 2,000 and $50 for every one thousand thereafter. If you need to order 5,000 forms, what is the total cost?
*Wednesday, August 6, 2014 at 3:04pm*

**Qualitative analysis**

Computer sales over the past 4 months have been 35, 34, 38, and 44 units. Using a 3-month moving average, forecast sales for the next month. Using a 3-month weighted moving average with the weights 3, 2, and 1, and with the most weight on the most recent data, forecast the ...
*Tuesday, August 5, 2014 at 9:38pm*

**Math**

The number of tickets sold each day for an upcoming performance of Handel,s Messiah is given by N(x)=-0.4^2+8.8x+10, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?
*Tuesday, August 5, 2014 at 8:28pm*

**math**

Fun fact: there are only two in that are equal to the sum of their factorials of their digits. (Ex 145: 1!+4!+5!= 1+24+120=145 First one to find the other one wins
*Tuesday, August 5, 2014 at 2:07am*

**English(first additional language)**

English is the language of opportunity. why bother to teach indigenous languages?
*Monday, August 4, 2014 at 12:55pm*

**penn foster paralegal**

i need help with the following i need the info to be for OHIO LAWS Participants Sally Bright asked her husband, John, to move out temporarily due to marital difficulties. After a brief separation, Sally filed for divorce and received temporary custody of their 14-year-old ...
*Monday, August 4, 2014 at 10:23am*

**math**

Investor A deposits 1,000 into an account that earns an interest rate of 6% per annum compounded semi-annually. On the same date, Investor B deposits 800 into an account that earns an interest rate of 8% per annum compounded monthly. After how many years does Investor B’s...
*Monday, August 4, 2014 at 8:48am*

**Art and Design/ History **

How did the first world war play an important role in many aspects of Art Deco and designers, How did it change the role of women and men?
*Monday, August 4, 2014 at 6:21am*

**physics**

why is the following situation impossible? a normally proportioned adult walk briskly along a straight line in the +x direction, standing straight up and holding his right arm vertical and next to his body so that the arm does not swing. his right hand holds a ball at his side...
*Saturday, August 2, 2014 at 11:49pm*

**college math**

On August 4, 2007, NASA's Phoenix Mars Lander was launched into space to search for life in the icy northern region of the planet Mars; it touched down on Mars on May 25, 2008. As the ship raced into space, its jet fuel tanks dropped off when they were used up. The ...
*Saturday, August 2, 2014 at 9:01pm*

**Math**

A model rocket is launched with an initial velocity of 164ft/sec. It's height h, in feet, after t seconds is given by the formula h=164t-16t^2. After how many seconds will the rocket first reach a height of 400ft?
*Saturday, August 2, 2014 at 8:09pm*

**Finance**

4. Your program plans to acquire a total of 600 end items costing $535 million over a five-year period. The first production contract is to be awarded in FY04. The number of items to be procured (not delivered) each year and their estimated cost (in then-year dollars) is shown...
*Friday, August 1, 2014 at 4:27pm*

**mat/117**

Select the first five terms in the arithmetic sequence an =2n, starting with n= 1
*Friday, August 1, 2014 at 1:23pm*

**12th grade English 4**

#1. "Something new." "Never been guessed before." "A very fresh note." The critics agreed there was something different going on here. Many books about war, some quite realistic, had already been written. First-person narration was not unusual. ...
*Friday, August 1, 2014 at 12:01pm*

**math**

Timmy and Kenny raced in biking and running. Timmy won first place by clocking in at 5.75 min. in biking and 8.2 min. in running. Kenny won 2nd place by clocking in at 6.2 min. in biking and 9.4 min. in running. What is the difference of their clock-ins together?
*Friday, August 1, 2014 at 4:13am*

**first chemistry**

Salicylic acid reacts with acetic anhydride to produce the analgesic drug aspirin and acetic acid. Using a periodic table, calculate the molecular weight of aspirin to 2 decimal places.
*Friday, August 1, 2014 at 1:34am*

**AP Calc**

When a chain hangs under its own weight, its shape is catenary. The equation of a catenary with a vertex on the y-axis is y=e^x+e^-x. Find the length of the chain from x=-2 to x=2. Then use the same technique from Problem #8(Previous AP calc problem I posted) to find the ...
*Thursday, July 31, 2014 at 7:32pm*

**English 2**

Revise the following paragraph until you can answer yes to each of the questions listed below. After you are finished, copy the revised paragraph in the space provided 1. Does the paragraph have a clear purpose, and does each sentence contribute to that purpose? 2. Is every ...
*Wednesday, July 30, 2014 at 2:55am*

**corporate finance**

Your finance text book sold 45,500 copies in its first year. The publishing company expects the sales to grow at a rate of 20.0 percent for the next three years, and by 7.0 percent in the fourth year. Calculate the total number of copies that the publisher expects to sell in ...
*Wednesday, July 30, 2014 at 12:58am*

**us history**

I was wondering if somebody could help me improve on my answers to these questions below. Thank you. One: Despite Watergate, did not Richard Nixon's presidency start the Republican ascendency of the following period? Why and how did this happen? -1. Yes it did. The ...
*Tuesday, July 29, 2014 at 12:46pm*

**physics**

An object carries a charge of -6.9 µC, while another carries a charge of -2.0 µC. How many electrons must be transferred from the first to the second object so that both objects have the same charge?
*Monday, July 28, 2014 at 3:32pm*

**Physics**

Two objects separated by a distance r are each carrying a charge –q. The magnitude of the force exerted on the second object by the first is F. If the first object is removed and replaced with an identical object that carries a charge +4q, what is the magnitude of the ...
*Monday, July 28, 2014 at 1:39pm*

**College English**

Discuss, in “Sinners in the Hands of an Angry God,” Edwards’ description of God’s wrath and Edwards’ use of the metaphors of storm and thunder, flood and fire. CAN YOU TELL ME DID I ANSWER THE QUESTION RIGHT? Jonathan Edwards is a name that is getting ...
*Monday, July 28, 2014 at 12:00pm*

**math**

The game involves tossing a penny and a dime along with rolling a die. to win the penny land heads up, the dime land tails up and roll a 6 on the die. what is the probability that he will win on the first play
*Monday, July 28, 2014 at 12:08am*

**physics**

19. A ball with a mass of 2 kg moves to the right at a speed of 0.28 m/s. It hits a ball of mass 0.5 kg which is at rest. After collision, the second ball moves to the right with a speed of 1.5 m/s. What is the speed and direction of the first ball after collision?
*Sunday, July 27, 2014 at 5:48am*

**Math 221**

where is the origin located in this equation? 1). The first equation that I am using for my discussion is: y=x+4 and the parallel must past through this given point (-7, 1) y=x=-4 is the equation and (-7, 1) is the ordered pair y=x+4 Since I want the new line parallel, I need ...
*Friday, July 25, 2014 at 6:24pm*

**Math 221**

I need to check and see if this is correct? 1). The first equation that I am using for my discussion is: y=x+4 and the parallel must past through this given point (-7, 1) y=x=-4 is the equation and (-7, 1) is the ordered pair y=x+4 Since I want the new line parallel, I need to...
*Friday, July 25, 2014 at 1:36pm*

**Chemistry Please Help!!!**

Airbags contain a mixture of sodium azide, potassium nitrate, and silicon dioxide. A sensor detects a head on collision that cause the sodium azide to be ignited and to decompose forming sodium and nitrogen gas. This gas fills a nylon or polyamide bag such that the front face ...
*Friday, July 25, 2014 at 12:55pm*

**math**

A compact disc is placed in a player that randomly selects and plays songs from the disc.The compact disc contains 3 ballads, 4 instrumental pieces,X dance tracks and no other pieces.If the probability that the first song played will be a ballad is 1/4,what is the value of X?
*Thursday, July 24, 2014 at 11:56pm*

** college English**

Discuss the manner in which the theories expressed by Winthrop are in some degree evident in American government and culture today. Can Someone read my response and see if I answer it right Winthrop Theory uses the central necessities of disguises and, particularly, the ...
*Thursday, July 24, 2014 at 5:57pm*

**CURVE SKETCHING PLEASE HELP **

Okay so my teacher has been away and hasent explained anything to us and we have to find the intercepts, critical points, intervals of increase and decrease, points of inflection, intervals of concavity, local maximum or minimum points for each of the following functions Can ...
*Thursday, July 24, 2014 at 4:10pm*

**calculus**

Please help!! Okay so my teacher has been away and hasent explained anything to us and we have to find the intercepts, critical points, intervals of increase and decrease, points of inflection, intervals of concavity, local maximum or minimum points for each of the following ...
*Thursday, July 24, 2014 at 4:10pm*

**math**

AFTER JENNY SPENT 1 / 3 OF HER SAVINGS ON A School bag, she had Rs 780 left .find jenny's SAVINGS AT FIRST.
*Thursday, July 24, 2014 at 2:52pm*

**literature homework**

Discuss the manner in which the theories expressed by Winthrop are in some degree evident in American government and culture today. Can Someone read my response and see if I answer it right Winthrop Theory uses the central necessities of disguises and, particularly, the ...
*Thursday, July 24, 2014 at 12:25pm*

**Civics**

Question 1 (Multiple Choice Worth 3 points) Which approach to foreign policy involves sending ambassadors to other countries? Isolation Diplomacy Intervention Imperialism Question 2 (Multiple Choice Worth 3 points) Which of the following is true about foreign and domestic ...
*Thursday, July 24, 2014 at 11:38am*

**math**

The cost of mailing a package is c cents for the first b ounces and d cents for each additional ounce. find the cost, in cents, for mailing a package weighing f ounces if f is more than b
*Thursday, July 24, 2014 at 10:33am*

**calculating statistical data**

the forms used in your coding area cost 100.00 per 1000 forms for the first 2000 and $50 for every 1000 thereafter. if you need to order 5000 forms what is the total cost?
*Wednesday, July 23, 2014 at 6:36pm*

**Chemistry**

Hello, I would greatly appreciate some help with the following problem, as I'm not sure how to proceed. I'm trying to find solubility (Ksp) of Cu(IO3)2 from titration experiment. The following equations were provided: Cu(IO3)2 --> Cu^2+ + 2IO3^- Ksp = [Cu^2+][IO3...
*Wednesday, July 23, 2014 at 6:11pm*

**calculating statistical data**

community health center, a new patient clinic in your town serving only underinsured and uninsured patients, has asked you to help its him department get started. calculated the number of new shelving units needed for medical record filing system based on 8 shelves per unit at...
*Wednesday, July 23, 2014 at 5:59pm*

**geometry**

Two rectangles are similar. If the height of the first rectangle is 3 inches, and the height if the second rectangle is 9 inches, how much larger is the second rectangle's area?
*Wednesday, July 23, 2014 at 11:26am*

**maths**

As compared to its first year of operation, ABC Company grew 8% in the second year and an additional 2% per year for the next two years. If total growth for years 2-4 was $45,000 over the first year’s sales of $150,000, how much did ABC Company grow in year 2?
*Tuesday, July 22, 2014 at 9:47pm*

**algebra**

Find 1.The first 4 terms of the binomial expansion in ascending powers of x of (1+x/4)^8. 2.Use your expansion to estimate (1.025)^8
*Tuesday, July 22, 2014 at 7:21pm*

**math**

Find the first three terms in ascending power of 'x' of the binomial expression of (3+bx)^5 where b is a non zero constant.
*Tuesday, July 22, 2014 at 7:17pm*

**Calculus**

For f(x)=2(x+5)^3 +7 Find and classify the extreme values, determine where the function is increasing and decreasing, where it is concave up and concave down, and any points of inflection. I understand this is using the first and second derivative tests, but I can't find ...
*Tuesday, July 22, 2014 at 6:36pm*

**math**

find the sum of an A.P.of eleven terms whose first term is 1 and whose last term is 6.
*Tuesday, July 22, 2014 at 2:53pm*

**math**

#1 In an original group, the probability of choosing a girl from that group was 1/3. When 1 more girl joins the group, the probability of choosing a girl out of the group changes from 1/3 to 3/7. How many boys were there in the group orginally? a. 1 b. 2 c. 3 d. 4 e. 5 #2 A ...
*Monday, July 21, 2014 at 10:27pm*

**programming logic and design**

I need help writing pseudocode for this problem: Design a retirement planning calculator for skulling financial services • Allow a user enter a number of working years remaining in the user career and the annual amount of money the user can save • Assume that the ...
*Monday, July 21, 2014 at 4:22am*

**Math**

Financial aid students must pass 2/3 of their courses each term in order to continue their aid. If a student is taking 18 hours, how many hours must be passed?
*Sunday, July 20, 2014 at 6:25pm*

**General Education**

Memmie: The greater the population near a restaurant, the more potential customers it has and the greater chance its popularity will spread through word-of-mouth. O’Sullivans Restaurant just opened in the very densely populated town of Redville, so its chances for success...
*Sunday, July 20, 2014 at 2:13pm*

**math**

The sum of the first n odd number is n^2. The sum of the first 30 odd numbers is A. 60 B. 90 C. 300 D. 900 Thank you for the help in advance =)
*Saturday, July 19, 2014 at 11:27am*

**math**

Each term in a sequence of numbers, except for the 1st term, is 2 less than the square root of the previous term.If the 3rd term of this sequence is 1, what is the first term?
*Thursday, July 17, 2014 at 9:58pm*

**Math**

Some of these conversions have an error. If there is an error, explain the nature of the error and complete the conversion correctly. (I redid all the questions and only the first one looked incorrect to me. Can you look it over and point out any other mistakes? Thank you) a) ...
*Thursday, July 17, 2014 at 4:34pm*

**Physics**

A 2.0 kg ball moving with a speed of 3.0 m/s hits, elastically, an identical stationary ball as shown. If the first ball moves away with angle 30° to the original path, determine a)the speed of the first ball after the collision. b)the speed and direction of the second ...
*Thursday, July 17, 2014 at 2:15pm*

**US Government**

9. Commissions refer to the bureaucratic bodies that regulate business activities. A) True B) False 10.Staff agencies serve to support and aid the chief executive and other administrators by offering advice and other assistance in management. A) True B) False
*Thursday, July 17, 2014 at 1:08pm*

**English**

when one assumes that when one event follows another in time, that the first event causes the second to occur,he or she may relying, on what? causation or reverse chronological order I really do not know
*Thursday, July 17, 2014 at 12:21pm*

**physics**

A standing wave has X nodes in a string Y m long The wavelength of this wave is ___ m rounded to the first decimal place.
*Thursday, July 17, 2014 at 11:06am*

**math**

The sum of the first 20 terms of an arithmetic series is identical to the sum of the first 22 terms. If the common difference is -2, find the first term.
*Thursday, July 17, 2014 at 7:56am*

**math**

a 40 year building programme for new houses began in 1951(year 1) and finished in 1990 year (40). The number of houses built each year form an A.P. With the first term 'a' and the common difference 'd'. Given that 2400 new houses were built in 1960 and 600 new ...
*Thursday, July 17, 2014 at 7:49am*

**Algebra **

You are walking away from home at a constant velocity of 5 km per hour. The first landmark you see is your favorite fountain which happens to be 2 km from your house. Which of the following sequences describes the distances you cover at internals of one hour starting when you ...
*Tuesday, July 15, 2014 at 12:21pm*

**economics**

Using an aggregate demand and supply diagram, explain how each of the following scenarios affects the equilibrium price level and aggregate output. Consider first the short-run, then the long-run equilibrium for each scenario. a) Consumers expect a recession, while resource ...
*Tuesday, July 15, 2014 at 11:50am*

**Algebra**

Two different cars each depreciate to 60% of their respective original values. The first car depreciates at an annual rate of 10%. The second car depreciates at an annual rate of 15%. What is the approximate difference in the ages of the two cars? 1.7 ears 2.0 years 3.1 years ...
*Monday, July 14, 2014 at 8:47pm*

**Math**

A standard deck of playing cards is shuffled and three people each choose a card. Find the probability that the first two cards chosen are clubs and the third card is black if the cards are chosen with replacement, and if the cards are chosen without replacement.
*Monday, July 14, 2014 at 7:14pm*

**Science**

A student is assigned the task of measuring the mass of one tennis ball using a scale for which the zero adjustment on the balance is not working. The student is given three balls and the can in which they were packaged. Which of the following strategies will provide the best ...
*Monday, July 14, 2014 at 5:31pm*

**math**

The Jones family was one of the first to come to the U.S. They had 5 children. Assuming that the probability of a child being a girl is .5, find the probability that the Jones family had.
*Monday, July 14, 2014 at 5:28pm*

**Pre algebra**

Will has a mean score of 62 on the first five test in science. if he gets a 50 on the next test what will his mean be then?
*Monday, July 14, 2014 at 1:51pm*

**Math**

There are 6 white, 9 brown, and 1 pink towels. What is the probability of using a brown or pink towel first.
*Monday, July 14, 2014 at 12:56pm*

**Public Organization Management**

Can someone read over my case paperI cannot add a file so i just copied and pasted it...I did not add my references at the end either or the tables since they wont show up right here just need to see if this makes sense and flows and my in paper citations are correct. ...
*Monday, July 14, 2014 at 10:03am*

**physics**

A string with linear mass density μ = 0.0279 kg/m under a tension of T = 183 N is oriented in the x-direction. Two transverse waves of equal amplitude and with a phase angle of zero (at t = 0) but with different frequencies (ω = 3420 rad/s and ω/3 = 1140 rad/s) ...
*Monday, July 14, 2014 at 5:45am*

**Accounting **

During its first year of operations, Maria Rose set up Roseland Inc. and invested $25,000 in the corporation. The company earned $68,000 of revenues and incurred $32,000 of expenses. At the end of the year, the company owed $24,000 to its creditors. A cash dividend of $5,000 ...
*Sunday, July 13, 2014 at 10:09pm*

**physics**

A string with linear mass density μ = 0.0279 kg/m under a tension of T = 183 N is oriented in the x-direction. Two transverse waves of equal amplitude and with a phase angle of zero (at t = 0) but with different frequencies (ω = 3420 rad/s and ω/3 = 1140 rad/s) ...
*Sunday, July 13, 2014 at 7:31pm*

**statistics**

A doctor wants to know if her patients are happy with her. She decides to survey a sample of her clients. What method would be best for choosing a random sample that is a fair representation of her patients? A. Assign numbers to each patient and then use a random number ...
*Sunday, July 13, 2014 at 7:16pm*

**Physics**

Two blocks of masses m1 = 4.4 kg and m2 = 4.8 kg are connected by a string as shown in the figure above. Block 1 moves at a constant velocity down the incline 30 degrees) block two is not at incline it is straight. they are attached with a string. a) Find the coefficient of ...
*Sunday, July 13, 2014 at 6:07pm*

**Physics**

Two blocks of masses m1 = 4.4 kg and m2 = 4.8 kg are connected by a string as shown in the figure above. Block 1 moves at a constant velocity down the incline 30 degrees) block two is not at incline it is straight. they are attached with a string. a) Find the coefficient of ...
*Sunday, July 13, 2014 at 5:52pm*

**Chem 1120 **

The KC for the reaction I2 --> 2I is 3.8 x 10 ^ -5 at 727 degrees C. Calculate Kc and Kp for the equilibrium of 2I -> I2 at the same conditions. I don't understand how to set up or solve this problem. I know Kc=[I]^2 / [I2] = 3.8x10^-5 for the first equation but I ...
*Sunday, July 13, 2014 at 4:55pm*

**Biology**

Plant -+ Deer --+ Tiger The first step in the energy chain that created the bonds of proteins in the tiger's muscle cells in the food chain shown above is the A. deer the tiger ate. B. plant the deer ate. C. photons the sun made. D. carbohydrates the plant made. I think it...
*Sunday, July 13, 2014 at 12:10pm*

**Grammar **

Hi there, I am stuck on some Grammar questions, and need some help. 1. When are you having Jamie's surprise party? A. "When are you" is the complete subject. B. "You having Jamie's surprise party" is the complete subject. C."Jamie's ...
*Saturday, July 12, 2014 at 3:47pm*

**US Government**

In the beginning of our nation seats were reapportioned after the first three years, but today we reapportion seats in the House every 10 years. A) True B) False
*Saturday, July 12, 2014 at 2:57pm*

**Physics**

An automobile moving at a constant velocity of 25m/s passes a gasoline station. Two seconds later, another automobile leaves the gasoline station and accelerates at a constant rate of 4.0m/s^2. how soon will the second automobile overtake the first?
*Thursday, July 10, 2014 at 10:09am*

**environmental engineering**

A water treatment plant has 6 settling tanks that operate in parallel (the flow gets split into six equal flow streams), and each tank has a volume of 600m3. If the flow to the plant is 10 mgd, what is the retention time in each of the settling tanks? If, instead, the tanks ...
*Thursday, July 10, 2014 at 7:15am*

**Math**

Shantle and Kwamie are planning to buy their first home. Although they are excited about the prospect of being homeowners, they are also a little frightened. A mortgage payment for the next 30 years sounds like a huge commitment. They visited a few developments and scanned the...
*Wednesday, July 9, 2014 at 10:31pm*

**English**

It has taken many centuries of wars and fightings for mankind to learn this. --------------- What does the first word 'It' refer to in this sentence?
*Wednesday, July 9, 2014 at 4:14pm*

**US Government**

True or False.If candidates receive federal aid for campaigning, then there is a limit placed on how much of their own money they may spend.
*Wednesday, July 9, 2014 at 12:48pm*

**Maths- calculus**

Two ships leave different ports A and B 100 miles apart at 0800 hours, each heading for the opposite port on reciprocal courses. Ship A steams at 20 knots and ship B at 15 knots. calculate: (a) What time are they first 45 miles apart? (b) What time they will pass, and how far ...
*Wednesday, July 9, 2014 at 2:02am*

**economics**

Wireless high speed internet is provided for free in the airport of the city of communityville. a) At first, only a few people use the service. What type a good is this and why? It’s a public good because it is neither excludable nor rival in consumption. b) Eventually, ...
*Tuesday, July 8, 2014 at 9:15pm*

**Physics**

Do Newton's Law apply to motion inside your car? A.Yes, but only when at rest. B.Yes, but only when traveling at constant velocity or at rest. C.No, never. D.Yes, always. So I tried answering the question with D at first because I was thinking that it is a car in motion so...
*Tuesday, July 8, 2014 at 5:38pm*

**math**

The fourth and ninth term of an a.p are -3 and 12 repectively find:the common different and the sum of the first seven term.
*Tuesday, July 8, 2014 at 1:12pm*

**math**

In order for a spacecraft to reach Earth's orbital velocity, it must achieve a speed of 17,500 mph in 610 seconds after its first stage burnout where it should have achieved a speed of 1530 mph. What percent increase in speed per second is necessary after first stage in ...
*Tuesday, July 8, 2014 at 11:20am*

**Precal**

What is the first natural number that causes the statement:(2 + 3)n 4n + 3n to fail?
*Tuesday, July 8, 2014 at 8:36am*

**physics**

On a 60 km straight road,a bus travels the first 30km with a uniform speed of 30kmh .How fast must the bus travel the next 30 km so as to have average speed of 40 kmh for entire trip.
*Tuesday, July 8, 2014 at 2:55am*

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