Monday

December 22, 2014

December 22, 2014

Post a New Question | Current Questions

**College Physics**

What is the smallest capacitor needed in a computer power supply in order to supply at least 0.2 A of current for 0.35 s after the power goes off? (DATA: Assume that the resistance of all the components of the computer mother board is 5 Ω and it uses a 5 V supply.)
*Tuesday, September 16, 2014 at 10:19pm*

**College Physics**

After 2.5 time constants, what percentage of the final voltage, emf, is on an initially uncharged capacitor C, charged through a resistance R?
*Tuesday, September 16, 2014 at 10:18pm*

**College Physics**

A heart pacemaker fires 66 times a minute, each time a 27.0–nF capacitor is charged (by a battery in series with a resistor) to 0.632 of its full voltage. What is the value of the resistance?
*Tuesday, September 16, 2014 at 10:17pm*

**College Physics**

A circuit consists of 3 components connected between 2 terminals: A 6 V source, a 90 Ω resistor and a 0.01 F capacitor. The capacitor is initially uncharged. The voltage source is turned on. What is the voltage across the capacitor after a very long time? What is the ...
*Tuesday, September 16, 2014 at 10:16pm*

**College Physics**

What is the internal resistance of a 15.0 V car battery whose terminal voltage drops to 13.40 V when the starter draws 50.1 A? What is the resistance of the starter?
*Tuesday, September 16, 2014 at 10:15pm*

**college algebra**

A jazz group on tour has been drawing average crowds of 600 people. It is projected that for every $1 increase in the $15 ticket price, the average attendance will decrease by 60. At what ticket price will nightly receipts be $7,560?
*Tuesday, September 16, 2014 at 8:33pm*

**college algebra**

The Vilas County News earns a profit of $20 per year for each of its 3,000 subscribers. Management projects that the profit per subscriber would increase by 1¢ for each additional subscriber over the current 3,000. How many subscribers are needed to bring a total profit ...
*Tuesday, September 16, 2014 at 5:56pm*

**college algebra**

An advertising company orders a poster that is 342 square feet. If its length is 1 foot greater than its width, find the dimensions of the poster.
*Tuesday, September 16, 2014 at 5:05pm*

**college algebra**

A contractor leans a 23-foot ladder against a building. The distance from the ground to the top of the ladder is 7 feet more than the distance from the building to the base of the ladder. How far up the building is the ladder to the nearest tenth of a foot?
*Tuesday, September 16, 2014 at 5:05pm*

**college algebra**

The Vilas County News earns a profit of $20 per year for each of its 3,000 subscribers. Management projects that the profit per subscriber would increase by 1¢ for each additional subscriber over the current 3,000. How many subscribers are needed to bring a total profit ...
*Tuesday, September 16, 2014 at 3:11pm*

**english**

which is a better thesis A. Because it has become outdated, the electoral college should be replaced by a system that allows the US president to be elected by direct popular vote. B. Rather than voting for a presidential candidate, voters in a US presidential election merely ...
*Monday, September 15, 2014 at 12:55pm*

**college algebra**

An executive invests $29,000, some at 8% and some at 4% annual interest. If he receives an annual return of $1,680, how much is invested at each rate?
*Monday, September 15, 2014 at 12:19pm*

**statistics**

A random sample of 8 male college students was taken and asked to report their shoe size and height in inches
*Sunday, September 14, 2014 at 11:52pm*

**College Chemistry **

how many liters of ethanol contain 1.5 kg of ethonal?
*Sunday, September 14, 2014 at 7:29pm*

**college physics**

Show that the motion of a particle in a central force field is always confined to a plane.
*Saturday, September 13, 2014 at 5:10am*

**Veterinarian assisted **

1. In the __________, an animal patient's hair is clipped and its skin is scrubbed to prepare for surgery. A. hospital ward B. surgical suite C. treatment area D. grooming area 2. Supervision of the treatment area is usually the responsibility...
*Friday, September 12, 2014 at 6:17pm*

**Language Arts - Please Check My Answer For This**

Please help me with the following: Read the sentence. Juanita used her affinity for numbers to help her design a computer program that relied on college-level math formulas, even though she was only in middle school. Based on the context clues in the sentence, what is the best...
*Friday, September 12, 2014 at 2:29pm*

**Statistics**

In a survey of 80 high school football players who committed to play in the Division III CCIW conference, 64 said that they would work out in their high school weight rooms in the summer before college. The margin of error for the survey was 6%. A census of all CCIW football ...
*Friday, September 12, 2014 at 1:04pm*

**College Algebra**

A boy can row a boat at a constant rate of 5 mi/hr in still water, as indicated in the figure. He rows upstream for 24 minutes and then rows downstream, returning to his starting point in another 16 minutes. (Round your answers to two decimal places.) (A) Find rate of the ...
*Friday, September 12, 2014 at 9:07am*

**Science (college level)**

1. What solar temp is needed for the peak intensity of radiation to occue at .2 micrometers? Remembering that humans can see light only between .4 and .7 microns, would the sun look brighter or dimmer at this new temp? 2. How much variation in earth orbital distance from the ...
*Friday, September 12, 2014 at 5:07am*

**college math**

v=1/3ttr^2h; h(geometry)
*Thursday, September 11, 2014 at 8:20pm*

**college math**

How many liters of water should be evaporated from 110 liters of a 12% saline solution so that the solution that remains is a 20% saline solution
*Thursday, September 11, 2014 at 8:18pm*

**college math**

A motorboat left a harbor and traveled to an island at an average rate of 11 knots. The average speed on the return trip was 10 knots. If the total trip took 4.2 hours, how far is the harbor from the island?
*Thursday, September 11, 2014 at 8:18pm*

**college chemistry**

Express the concentration of a 0.0620M aqueous solution of fluoride, F-, in mass percentage and in parts per million. assume the density of the solution is 1.00g/mL.
*Thursday, September 11, 2014 at 7:29pm*

**Statistics**

A poll was taken of a random sample of 1189 college students. Of these students, 789 reported that they had a drinking binge (more than 10 drinks in an evening) in the past month. Select the most believable conclusion. A. About 66.358% of college students indulged in binge ...
*Thursday, September 11, 2014 at 1:15pm*

**college math**

if $110 is invested for one year at 13% simple interest, how much interest is earned?
*Wednesday, September 10, 2014 at 4:47pm*

**college algebra**

A doctor prescribes an ointment that is 4% hydrocortisone. A pharmacist has 1% and 5% concentrations in stock. How many ounces of each should the pharmacist use to make a 3-ounce tube?
*Wednesday, September 10, 2014 at 4:03pm*

**college algebra**

An executive invests $22,000, some at 8% and some at 6% annual interest. If he receives an annual return of $1,680, how much is invested at each rate?
*Wednesday, September 10, 2014 at 3:23pm*

**college algebra**

A taxi cab company charges a flat fee of $3.30 and then an additional $2.20 for each mile. If a taxi fare is $29.70, how many miles was the trip?
*Wednesday, September 10, 2014 at 12:43pm*

**College Physics**

How many gallons of Oil would be in a cylindrical tank that was 24 feet long and had a diameter of 6 feet if the oil was 6 inches deep at the bottom of the tank?
*Wednesday, September 10, 2014 at 8:05am*

**college algebra**

compare and contrast the ways in which solving a linear inequality is similar / dissimilar to solving a linear equation please explain
*Tuesday, September 9, 2014 at 9:09pm*

**statistics**

At a local college, 81 of the male students are smokers and 729 are non-smokers. Of the female students, 350 are smokers and 350 are non-smokers. A male student and a female student from the college are randomly selected for a survey. What is the probability that both are ...
*Monday, September 8, 2014 at 1:23pm*

**Young Harris College**

How much energy is needed to heat 8.50 g of ice from -30.0 C to 70.0 C? The heat of fusion of water is 6.01 kJ/mol, and the molar heat capacity is 36.6 J/(mol.K) for ice and 75.3 J/(mol.K) for liquid water. I got 19.24kJ but it isn't correct!!
*Sunday, September 7, 2014 at 7:54pm*

**college physics**

A 49-kg lead ball is dropped from the leaning tower of Pisa. The tower is 54 m high. (a) How far does the ball fall in the first 2.4 seconds of flight? (b) What is the speed of the ball after it has traveled 4.1 m downward? (c) What is the speed of the ball 1.7 s after it is ...
*Sunday, September 7, 2014 at 4:51pm*

**college algebra**

A large rectangular movie screen in an IMAX theater has an area of 7200 square feet. Find the dimensions of the screen if it is 10 feet longer than the width.
*Saturday, September 6, 2014 at 10:27pm*

**Math**

An all girl college began enrolling boys in 2005. By 2012 the ratio of boys to girls was 3 to 7. If there are 200 more girls than boys how many boys are there?
*Saturday, September 6, 2014 at 8:08am*

**statistics**

The mean height of students in a college is 155 cms and standard deviation is 15. What is the probability that the mean height of 36 students is less than 157 cms
*Thursday, September 4, 2014 at 5:08pm*

**College Chemistry**

Suppose there are two known compounds containing the generic elements X and Y. You have a 1.00-g sample of each compound. One sample contains 0.29 g of X and the other contains 0.38 g of X. Identify plausible sets of formulas for these two compounds. Check all that apply. XY ...
*Wednesday, September 3, 2014 at 3:57pm*

**college algebra**

1. simplify x^2+x-6/x^2-4 divided by x+3/2x+4
*Tuesday, September 2, 2014 at 11:11am*

**college algebra**

1.build the fraction x+5/x+3 to an equivalent fraction whoes denominator is x^2-x-12 2. add and simplify: x/x+2 +4x-3/x^2-4
*Tuesday, September 2, 2014 at 11:04am*

**college algebra**

question 1: build the fraction x+5/x+3 to an equivalent fraction whoes denominator is x^2 question 2: simplify (x^2+6x+9)(3-x)/(x-3)(2x+6) question 3. find the product in simplest from x^3-9x/x^5+27x^2 * x^2-3x+9/x^2+3x
*Tuesday, September 2, 2014 at 10:21am*

**KIPP Believe **

The student-to-faculty ratio at a small college is 17:3. The total of students and faculty is 740. How many faculty members are there at the college? How many student?
*Monday, September 1, 2014 at 5:38pm*

**Accounting 2**

Match each of the following steps that took place as Books on Wheels moved through the decision making, production, marketing, and sale of The Campus Cart with the correct phase of the management process: planning/organizing, directing/leading, and controlling. A. Planning/...
*Monday, September 1, 2014 at 2:35pm*

**college algebra**

1. divide and simplify x^2+x-56/x^1-1 / x-7/2x+2 2. find the product in simplest from for x^2+x-6/2x^2-x-3 * x^7-2x^6+4x^5/x^4+8x 3. perform the indicated operations and simplify: 2/3x +4/3x^2 y^4 -6/2x^4 y^5 4. perform the indicated operation and simplify x/x-1 + 2x+3/x^2-1 5...
*Monday, September 1, 2014 at 2:06pm*

**math**

A college student earned $8900 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 10% and the rest at 9%. If the student received a total of $831 in interest at the end of the year, how much was invested at 10%?
*Monday, September 1, 2014 at 10:53am*

**Accounting 2**

Match each of the following steps that took place as Books on Wheels moved through the decision making, production, marketing, and sale of The Campus Cart with the correct phase of the management process: planning/organizing, directing/leading, and controlling. A. Planning/...
*Sunday, August 31, 2014 at 11:30pm*

**Math**

A classroom in a college is 15m long and 12m broad. If the sum of the areas of its floor and the ceiling is equal to the sum of the areas of 4 walls of classroom , the volume of the classroom is.
*Saturday, August 30, 2014 at 9:39am*

**College Algebra**

Use the position equation given below, where s represents the height of the object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in seconds), as the model ...
*Wednesday, August 27, 2014 at 7:00pm*

**College Algebra**

A and B share a $21 pizza. B eats 2/3 as much as A. How much should they each pay. Hint: There is still some pizza left.
*Wednesday, August 27, 2014 at 3:31pm*

**Math for college readiness**

Find the greatest common factor of these two expressions. 16w^3x^8v^4 and 28x^2v^7
*Wednesday, August 27, 2014 at 2:16pm*

**College Algebra 1**

Using the factoring method, solve for the roots of quadratic equation 4x^2=16
*Saturday, August 23, 2014 at 7:46pm*

**College Algebra 1**

Using the factoring method, solve for the root: 10x^2-41x=-21
*Saturday, August 23, 2014 at 7:24pm*

**College Algebra 1**

Factor by using the difference of two square formula 1-25z^2
*Saturday, August 23, 2014 at 3:39pm*

**college algebra**

store mixes a Brazilian coffee worth worth $10 per kilogram and a turkish coffee worth $13 per kilogram. The mixture is to sell for $12 per kilogram. Find out how much of each should be used to make a 420-kilogram mixture. my calculations all came out super wrong
*Friday, August 22, 2014 at 9:59pm*

**College ALGEBRA**

. Manny plans to save of his salary each week. If his weekly salary is $ 444, find the amount he will save each week.
*Friday, August 22, 2014 at 5:32pm*

**Economics**

Production Possibilities Curve (PPC) Worksheet All PPC’s Reflect Increasing Opportunity Costs For Numbers 1-10, think the change affects all markets. On all graphs, place “Consumer Goods” on the X Axis and place “Capital Goods” on the Y. 1) Hurricane ...
*Thursday, August 21, 2014 at 8:56pm*

**Algebra 1**

A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the student’s checking ...
*Thursday, August 21, 2014 at 9:10am*

**college algebra**

Pump A alone can empty the city pool in 12 hours. If only pump B is used, it takes 24 hours to empty the pool. How long would it take to drain the pool if both pumps were used together?
*Wednesday, August 20, 2014 at 9:17pm*

**college algebra**

factor (x+9)(x-16)=0
*Wednesday, August 20, 2014 at 5:36pm*

**Advanced algebra**

The number of freshmen entering college in a certain year is 621. What type of data is 621? A. Discrete data B. categorical data C. Continuous data
*Monday, August 18, 2014 at 8:18pm*

**statistics**

The number of hours that college students sleep on a week night is approximated by a normal curve with a mean of 7 hours and a standard deviation of 1.7 hours. Answer the question below using a z table: On a week night, what percentage of students sleep between 5 and 10 hours
*Monday, August 18, 2014 at 9:27am*

**fitness**

1.The leading cause of death between ages 25 and 44 is A. heart disease. B. malignant neoplasms (cancer). C. unintentional injury. D. chronic low-respiratory disease. 2.Nearly _______ percent of the United States population dies from heart disease, cancer, and stroke. A. 20 B...
*Saturday, August 16, 2014 at 7:58pm*

**visual basic programming**

Write a Visual Basic program that will calculate the assessment marks of a student taking the Computer Programming subject in College. The program must be able to determine the total result and finally display the grade of that student. The program will also ensure that each ...
*Thursday, August 14, 2014 at 8:17pm*

**Education/College**

Do you believe that men and women develop in similar ways across the socioemotional domain in middle adulthood. I have read chapter 16 of my book but it is confusing me!
*Tuesday, August 12, 2014 at 6:41pm*

**cOLLEGE mAJORS**

ACCOUNTING VS IT WHICH IS HARDER? WHICH IS EASIER?
*Tuesday, August 12, 2014 at 4:42pm*

**college algerba**

on a map 1" equals 630 miles. How much does 2/7 inches equal
*Monday, August 11, 2014 at 5:30pm*

**College Chemistry II**

What is the pH of rainwater at 30C in which atmospheric Co2 has dissolved, producing a constant [H2Co3] of 1.40x10^-5 M? Take into account the auto ionization of water. Im very confused on how to even start this problem
*Sunday, August 10, 2014 at 5:03pm*

**College Chemistry II**

What is the solubility of ZnCO3 at 25C in a buffer solution with a pH of 10.21? ZnCO3 <----> Zn++ + CO3 – - CO3-- + H2O ----> HCO3- + OH- pOH = 14 – 10.21 = 3.79 [OH-] = 1.62x10^-4 M = [CO3--] = [Zn++] Ksp = [Zn++][CO3-] = (1.62x10^-4)( 1.62x10^-4) = 2.63x10...
*Sunday, August 10, 2014 at 3:35pm*

**MATH**

At one college, GPA’s are normally distributed with a mean of 2.9 and a standard deviation of 0.6. Find the 70th percentile.
*Thursday, August 7, 2014 at 5:10am*

**college algebra**

A store sells cashews for $5.00 per pound and peanuts for $1.50 per pound. The manager decides to mix 30 pounds of peanuts with some cashews and sell the mixture for $3.00 per pound. How many pounds of cashews should be mixed with the peanuts so that the mixture will produce ...
*Tuesday, August 5, 2014 at 10:47pm*

**college algebra**

How many gallons of a 30% alcohol solution must be mixed with 60 gallons of a 14% solution to obtain a solution that is 20% alcohol
*Tuesday, August 5, 2014 at 11:19am*

**college physics**

Calculate the angular speed of the moon if it makes a revolution around the earth in 27.3 days?
*Tuesday, August 5, 2014 at 4:07am*

**college physics**

A wheel starts from rest and increase it's rotational speed;time required to reach that speed;Uniform angular acceleration.
*Tuesday, August 5, 2014 at 4:06am*

**college physics**

What is the force applied in the direction of the wire at a point attached to the patient in a traction system, if the mass applied is equal to 5kg?
*Tuesday, August 5, 2014 at 4:04am*

**Human Resources**

3. Design a Pilot Test. Following are descriptions of three situations in which a test has been developed. Read each situation and then design a pilot test. Answer the following questions about the pilot test: a. Who will take the test? b. What information will you gather, and...
*Tuesday, August 5, 2014 at 12:19am*

**Pre-College Algebra**

multiply the polynomial (x-1)(2x squared - x- 3)
*Monday, August 4, 2014 at 8:28pm*

**algebra**

From a survey of 100 college students, a marketing research company found that 65 students owned ipods, 45 owned cars, and 15 owned both cars and Ipods. (a) How many students owned either a car or an ipod (but not both)? (b)How many students do not own either a car or an ipod?
*Sunday, August 3, 2014 at 4:58pm*

**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*

**College math**

Express the following in terms of Sum(or differnece) of logarithm's: log sub-b T^5 W^2 Z
*Saturday, August 2, 2014 at 9:00pm*

**College math**

Convert to an exponential equation: -In45=3.80666249 and -Log sub.B T^5=W
*Saturday, August 2, 2014 at 8:56pm*

**College math**

Determine whether the following function is a one-to-one function,and if the function is a one-to-one, find a formula for the inverse. F(x)=x^3-27
*Saturday, August 2, 2014 at 8:52pm*

**College math**

Determine whether the following function is a one-to-one function,and if the function is a one-to-one, find a formula for the inverse. F(x)=(5x-6)/(2x+3)
*Saturday, August 2, 2014 at 8:52pm*

**College math**

Determine whether the following function is a one-to-one function,and if the function is a one-to-one, find a formula for the inverse. F(x)=5/(x+3)
*Saturday, August 2, 2014 at 8:49pm*

**College Physics 2.. HELP**

A 6 cm high object is placed 43ncm from a converging lens of focal length 24 cm. Find the image’s position and draw a ray diagram approximately to scale.
*Saturday, August 2, 2014 at 5:33pm*

**College Physics 2**

the Apollo 10 spacecraft traveled at 11 km/s just prior o its re-entry, setting a speed record for humans. Suppose advanced technology raises the speed record by a factor of 100, to 1100 km/s. if a time travel of 1 hour elapsed on a ground-based clock, by how many seconds ...
*Saturday, August 2, 2014 at 4:01pm*

**College Physics 2**

A broken-down spaceship (star Wreck?) flies across an international soccer field (Regulation length = 100 m) at a speed of 0.55c. A.) How long does the spaceship pilot measure the field to be? B.) From the spaceship pilot’s perspective, how long does it take to make this ...
*Saturday, August 2, 2014 at 4:01pm*

**College Physics 2**

An unstable particle called Bullroarium has a lifetime of 6x10E-10 seconds, measured at rest. If a Bullroariom particle zips past a stationary observer at 0.67c , find the stationary observer’s measurements for A.) Bullroarium lifetime as measured by the stationary ...
*Saturday, August 2, 2014 at 4:01pm*

**statistics**

Conduct a chi square analysis to determine whether sex and year in college are related. I have tried to submit the data but I can't seem to make the submission work. For my data I used 20 males and 20 females. and for the year in college I have 10 freshman, 10 sophomore, ...
*Thursday, July 31, 2014 at 10:53pm*

**greatbay community college**

A 5.00 kg stone is thrown upward at 7.50 m/s at an angle of 51.0 degrees above the horizontal from the upper edge of a cliff, and it hits the ground 1.50 s later with no air drag. Find the magnitude of its velocity vector just as it reaches the ground.
*Thursday, July 31, 2014 at 10:50pm*

**College Physics 2**

Find the resonant frequency of a circuit that has a 400 mH inductor and a 30 nF capacitor connected in series. A) Canadian FM radio station (CLAW) broadcasts lobster information at 95.9 MHz. find the wavelength of this station. B) What would be the frequency of a station for ...
*Wednesday, July 30, 2014 at 2:54pm*

**College Physics 2**

A) Canadian FM radio station (CLAW) broadcasts lobster information at 95.9 MHz. find the wavelength of this station. (B) What would be the frequency of a station for which the carrier wave was 400 m long?
*Monday, July 28, 2014 at 7:12pm*

**College English**

Red Jacket and Tecumseh in their respective speeches (again, as translated and transcribed), make frequent reference to “brothers” and brotherhood. Why such emphasis, at that historical moment, upon fraternity and unity? CAN SOMEONE CHECK MY ANSWER TO SEE IF I ANSWER...
*Monday, July 28, 2014 at 1:18pm*

**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*

**College Bio **

If two parental organisms of genotype pp and PP were crossed, what percentage of F1 offspring would be homozygous recessive? (Assume simple Mendelian pattern of inheritance and unlinked alleles.)
*Saturday, July 26, 2014 at 7:14pm*

**College English**

John Winthrop “A Model of Christian Charity" Discuss the manner in which the theories expressed by Winthrop are in some degree evident in American government and culture today. CAN SOMEONE TELL ME IF I ANSWER IT RIGHT? In Prospero's America, Walter W. Woodward ...
*Saturday, July 26, 2014 at 12:45pm*

**Economics**

Of your implicit and explicit costs of attending college, which is more, why?
*Saturday, July 26, 2014 at 12:38pm*

**College Algebra**

Give two functions f(x) & g(x) such that (fg)(-1) = 4
*Friday, July 25, 2014 at 11:23pm*

** college English**

Discuss the manner in which the theories expressed by John Winthrop are in some degree evident in American government and culture today. Can someone tell if my answer is right. In Prospero's America, Walter W. Woodward looks at the exchange of catalytic society to America ...
*Friday, July 25, 2014 at 8:42pm*

**College Algebra**

Hello Steve, it didn't work for "t" i can't get the actual value... Find the time required for an investment of 1 dollars to grow to 7200 dollars at an interest rate of 7.5 percent per year, compounded quarterly
*Friday, July 25, 2014 at 6:45pm*

**College Algebra**

1.Give a quadratic function q(x) with a vertex of (-1, 2). 2. Give a function h(x) which does not have an inverse function. 3. Give a polynomial function g(x) with zeros 1,2,3 4. Give an exponential function s(x) passing through (0,2) and (4,1). 5. Give a rational function R(x...
*Friday, July 25, 2014 at 5:50pm*

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Post a New Question | Current Questions