Sunday

February 19, 2017
**college physics**

In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is approximately 0.542 multiplied by 10-10 m. (The actual value is 0.529 multiplied by 10-10 m.) (a) Find the electric force exerted on each particle, ...

*Wednesday, September 18, 2013 by suhani*

**college physics**

(a) Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...

*Wednesday, September 18, 2013 by suhani*

**Math (College Pre-Cal)**

For given functions f and g find formulas for a)f o g and b)g o f. Simplify results as much as possible. f(x)= x+7/x-13 , g(x)= 1/x+1

*Tuesday, September 17, 2013 by Brenda*

**Physics 2 College Level**

A cylinder is closed at both ends and has insulating walls. It is divided into two compartments by an insulating piston that is perpendicular to the axis of the cylinder as shown in Figure a. Each compartment contains 1.00 mol of oxygen that behaves as an ideal gas with γ...

*Tuesday, September 17, 2013 by Sarah*

**College Physics**

How much would you have to raise the temperature of a copper wire (originally at 20 ∘ C) to increase its resistance by 30% ?

*Tuesday, September 17, 2013 by TaNay*

**College Physics 1**

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe, starting from rest, takes...

*Tuesday, September 17, 2013 by Sara*

**College Algebre**

f(x)= -3x^2+5x-2 Find f(x+h)/h

*Monday, September 16, 2013 by Sam*

**choice**

Varsity Press, a publisher of college textbooks, received a $70,000 promissory note at 12% ordinary interest for 60 days from one of its customers, Reader’s Choice Bookstores. After 20 days, Varsity Press discounted the note at the Grove Isle Bank at a discount rate of 14.5...

*Monday, September 16, 2013 by d*

**College Physics**

vector A has a magnitude of 29 units when B is added to A . find magnitude of B.

*Monday, September 16, 2013 by Anonymous*

**college math**

system of equations: solve the following system of operations using matrices (row operations) {5x + y + z + w = -5} {x - 2y + 2z -3w = -4}

*Saturday, September 14, 2013 by Cece*

**Radius Question Geometry(college level)**

When you have 3 separate circles and the radius of each of those circles is 10 do i calculate like this? 2(10)+2(10)+2(10)=60 cm for my diameter

*Saturday, September 14, 2013 by luckybee*

**College Algebra**

A couple wants to rent a car for one day while on vacation. Frank's Automotive Rental wants $29 a day and $0.17 per mile, while Coups-For--Day wants $21 a day and $0.19 per mile . After how many miles wo9uld the price from Coups exceed the price to rent from Franks?

*Saturday, September 14, 2013 by Joyce*

**college physics**

Nobel laureate Richard Feynman (1918-1988) once said that if two persons stood at arm's length from each other and each person had 1% more electrons than protons, the force of repulsion between them would be enough to lift a "weight" equal to that of the entire Earth. Carry ...

*Friday, September 13, 2013 by suhani*

**College algebra**

Allison drove home at 58 mph, but her brother Austin, who left at the same time, could drive at only 40 mph. When Allison arrived, Austin still had 108 miles to go. How far did Allison drive?

*Friday, September 13, 2013 by Nic*

**college algebra**

Find the intercepts of the function f(x). f(x) = (x - 2)2(x2 - 9)

*Thursday, September 12, 2013 by martha*

**college algebra**

Please help. Merina is moving out of her mom's house to her new house which is 14 miles away to reach her new house. Truck A offers a flat fee of $25 and $.40 per mile. What is the proper equation to solve the problem.

*Thursday, September 12, 2013 by Nima*

**College Math**

A plane flies 460 miles with the wind and 310 miles against the wind in the same length of time. If the speed of the wind is 30 mph, what is the speed of the plane in calm air?

*Tuesday, September 10, 2013 by G*

**college physics1**

A stone is dropped from rest from an infinitely tall building. Compute its velocity after 2 seconds

*Tuesday, September 10, 2013 by jenny*

**college algebra**

The county news earns a profit of $20 per year for each of its 3000 subscribers. Management projects that the profit per subscriber would increase by $0.01 for each additional subscriber over the current 3,000. How many subscribers are needed to bring a total profit of $113,100?

*Tuesday, September 10, 2013 by Dee*

**college algebra**

Scott and Laura have both invested some money. Scott invested $2500 more than Laura and at a 3% higher interest rate. If Scott received $900 annual interest and Laura received $450, how much did Scott invest?

*Tuesday, September 10, 2013 by Dee*

**College Algebra**

If a ball dropped from the top of a 400 ft building to hit the ground, how long would it take in seconds?

*Sunday, September 8, 2013 by Robert*

**college math**

I need help to simplify (-9)(-7) + 6?

*Sunday, September 8, 2013 by Elaine*

**college math**

Please simplify 100(-5)/25. Thanks a lot.

*Sunday, September 8, 2013 by Missy*

**college math**

simplify -10 -5

*Sunday, September 8, 2013 by Teddy*

**college algebra**

a large rectangular movie screen in an IMAX theater has an area of 8624 square feet. Find the dimensions of the screen if it is 10 feet longer than it is wide.

*Sunday, September 8, 2013 by Dee*

**college essay**

Im writing a college essay and Im not sure how to edit the first paragraph My existence thus far has been a musical performance. The world is my stage, the platform on which I can express myself creatively. My life is the reputable melody that I play from my guitar, and the ...

*Saturday, September 7, 2013 by chhristine*

**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 ...

*Friday, September 6, 2013 by sabina brown*

**SS**

Kevin decides to go straight to work after high school instead of college. What is the most likely long term consequence of this decision? a)changing jobs often b)making less money c)having lots of debt d)not finding work Is it b?

*Thursday, September 5, 2013 by Anonymous*

**college physics**

A sprinter can reach a speed of 9.0 m/s in 1.0 s. If the sprinter’s acceleration is constant during that time, what is the sprinter’s acceleration?

*Thursday, September 5, 2013 by Lucy*

**college algebra**

Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.) x4 + 27x = 0

*Thursday, September 5, 2013 by tara*

**College Geometry**

In this assignment, you examine a process that links polygons and circles. You will reach some quantitative conclusions about their respective areas and the relationship between the two. As you know, a regular polygon has sides of equal length and angles that are the same. ...

*Tuesday, September 3, 2013 by Lisa*

**College Physics II**

A steel wire and a copper wire, each of diameter 2.000 mm, are joined end to end. At 48.0°C, each has an unstretched length of 2.000 m. The wires are connected between two fixed supports 4.000 m apart on a tabletop. The steel wire extends from x = −2.000 m to x = 0, the...

*Tuesday, September 3, 2013 by Andrew*

**College chemistry math ratio problem**

Earlier you determined that the proper ratio of packages of buns, packages of patties, and jars of pickles is 3:2:4. If you want to feed at least 540 people, but also maintain the proper ratio, what minimum number of packages of buns, packages of patties, and jars of pickles ...

*Monday, September 2, 2013 by Jessica*

**College**

How can I earn a fullride scholarship?

*Sunday, September 1, 2013 by Anonymous*

**college algebra**

How many feet does a wheel with a diameter of 20 inches travel after five revolutions?

*Sunday, September 1, 2013 by eula*

**Information Literacy**

Scholarly journal articles are written by A: professional writers B: lower division college students C: experts in a subject field D: reporters

*Saturday, August 31, 2013 by Kacy*

**STATS**

A researcher conducted a survey on a sample of 2000 college-students in order to examine the relationship between academic achievement and procrastination of studying. Using several indicators and plots of the descriptive statistics, found that in the data were many outlier ...

*Friday, August 30, 2013 by Susie*

**psych/600**

can anyone help me with the course for Axia college University of Phoenix

*Thursday, August 29, 2013 by bejeweled*

**REC120**

Khaldun's hierarchy of desires theory, what element is found at the pinnacle of the pyramid? Desires related to spirituality or Desires related to leisure or Desires for affiliation or Desire for safety or Desire to meet bodily appetites I think it is related to leisure but am...

*Thursday, August 29, 2013 by Jazmyne*

**College Physics II (Calc-Based)**

In state-of-the-art vacuum systems, pressures as low as 1.00 x 10^-9 Pa are being attained. Calculate the number of molecules in a 1.90-m^3 vessel at this pressure and a temperature of 35.0°C. Okay. So I know I have to use the Ideal Gas Law, PV = nRT, I then transformed it ...

*Thursday, August 29, 2013 by Andrew*

**college algebra**

how to solve this x^2-14+49=16

*Thursday, August 29, 2013 by jordan*

**Statistics**

linear correlation between the number of years in college versus average pay. average pay= 1,000 + 15,000x where x is the number of years in college. What would your average pay be if you were in college 2 years based on the model?

*Wednesday, August 28, 2013 by Mary*

**Statistics**

linear correlation between the number of years in college versus average pay. average pay= 1,000 + 15,000x where x is the number of years in college. What would your average pay be if you were in college 2 years based on the model?

*Wednesday, August 28, 2013 by Mary*

**math**

The heights of the five starters of a college basketball team are 6'6, 6'7, 6'9, 6'11 and 7'. What it the mean height of these players , in inches?

*Sunday, August 25, 2013 by JJ*

**College Algebra**

I have no idea how to do this, and nobody in my family knows how to either. I have to determine the domain of the following function. f(x)=5/(3x-7)

*Sunday, August 25, 2013 by Caleb*

**Math**

If each 11 football teams In a college athletic conference played each of the other teams just once in a season, how many games would there be? As part of your answer, make a table. How many games would there be for 12 teams?

*Wednesday, August 21, 2013 by Abi*

**Math**

trying to decide between parameter and statistic for the 2 questions below. I think it is statistic for both but not sure. 1. A local newspaper conducted a survey last week. Of the 2300 subscribers, 1276 responded. Based on the survey, the editor concludes that 95% of the ...

*Wednesday, August 21, 2013 by Brandi*

**Writing SAT**

Post a New Question Current Questions Homework Help: Writing Posted by Anonymous on Tuesday, August 20, 2013 at 8:40pm. "Everything comes if a man will only wait." -Benjamin Disraeli, Tancred "Destiny is not a matter of chance, it is a matter of choice; it is not a thing to be...

*Tuesday, August 20, 2013 by Anonymous*

**Writing**

"Everything comes if a man will only wait." -Benjamin Disraeli, Tancred "Destiny is not a matter of chance, it is a matter of choice; it is not a thing to be waited for, it is a thing to be achieved." William Jennings Bryan, Memoirs Assignment: Should we wait for good things ...

*Tuesday, August 20, 2013 by Anonymous*

**writing**

How can I rewrite this introduction paragraph as a CONCLUSION paragraph? Tuesdays with Morrie is a very meaningful and powerful novel. In the novel the author Mitch album is recapping on the last few weeks he spent with his dear friend and college professor Morrie Schwartz who...

*Tuesday, August 20, 2013 by ELAINA*

**writing**

How do i finish this introductory paragraph? So far I have So far I have: Tuesdays with Morrie is a very meaningful and powerful novel. In the novel the author Mitch album is recapping on the last few weeks he spent with his dear friend and college professor Morrie Schwartz, ...

*Monday, August 19, 2013 by ela*

**ENGLISH**

revise the following paragraph, improving it without changing its overall meaning. pay particular attention to any subject- verb agreement errors. You ever felt sleep deprived? college students often complains that they are not getting enough sleep.

*Monday, August 19, 2013 by JOHN*

**maths**

At Baker High, 3 out of every 4 graduates go on to college . Of these 2 out of every 3 graduate from college. What percent of students graduating from Baker High will graduate from college ?

*Thursday, August 15, 2013 by Tomas*

**Lang ARts**

hat fact best explains why it is significant that Angelou's narrative is set in 1940? In 1940, the United States was not yet involved in World War II. In 1940, segregation of blacks and whites was still the norm. In 1940, most high school students did not go on to college. i ...

*Thursday, August 15, 2013 by Jack*

**Statistics**

Use the following table to answer questions 7 and 8: This table displays results from a prospective cohort study evaluating meat intake and mortality. The table displays hazard ratios for mortality by quintile of red meat intake. Table 2. Multivariate Analysis for Red, White, ...

*Thursday, August 15, 2013 by Rupal*

**College Accounting**

A light truck is purchased on January 1 at a cost of $27,000. It is expected to serve for eight years and have a salvage value of $3,000. Calculate the depreciation expense for the first and third years of the truck's life using the following methods. If required, round your ...

*Wednesday, August 14, 2013 by Mill*

**algebra for business**

As an entrepreneur, there are going to be many decisions that you need to make, such as the price to charge your customers for your goods and services. You have just graduated from college and recently opened a specialty pizza restaurant. Based on surveys conducted in your ...

*Sunday, August 11, 2013 by Amanda*

**STATISTIC**

1. I took a sample of the grade point averages for students in my class. For 25 students, the standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the sample was: (3 marks) 2. The heights (in inches) of adult males in Bhutan are believed ...

*Sunday, August 11, 2013 by CHIMI*

**grammar**

In Which oneof the following sentences is the number written correctly? A.the parcel of land was advertised as two hundred forty-three and three-quarters acres.b.the college has an,endowment of more than $187million.c.john just paid $33 thousand forhis New car.d.one hundred ...

*Thursday, August 8, 2013 by becky*

**Writing**

This time I hope I improve. Writing is a skill that must be practiced. In order to be good at writing I must read a lot, right? I won't survive in college if I am not able to write superfluos essays,right????? *Thank you,Writeacher for your patience. I know you might be bored ...

*Wednesday, August 7, 2013 by Anonymous*

**Writing**

Please grade, correct,and give feedbacks. Prompt: Colleges reward professors,who have significant research and teaching experience, with tenure. Once tenured, a professor holds his or her job without review and with little danger of being fired or replaced. Some people believe...

*Sunday, August 4, 2013 by Anonymous*

**Writing**

Writeacher,when is the best time for me to post this so that you are available? Prompt: New laws are being proposed that would require schools to accommodate students who wish to transfer to a different school if the school falls below a certain level on statewide standardized...

*Sunday, August 4, 2013 by Anonymous*

**college**

Regarding the punctuation of quotations, which of the following sentences is correct?

*Saturday, August 3, 2013 by ok*

**Writing**

Writeacher, I need you to tutor me on writing essays. It is really important in college and as a high schooler it is extremely important to be solid at writing. I am struggling and need tutoring. What will the first lesson be? Thank you for your help and support. Have a great ...

*Friday, August 2, 2013 by Anonymous*

**college algebra**

If 4 melons for $0.60, how much would 6 melons cost?

*Wednesday, July 31, 2013 by b1313s*

**Statistics**

A researcher surveyed college students to study their opinion about the proposed change in smoking rules. The researcher asked a group of 30 students: 12 of them supported the change, 13 of them did not, and 5 had no opinion. This is not a binomial model because... A. ...the ...

*Monday, July 29, 2013 by Will*

**College Algebra**

Solve system by method of elimination 0.07x + 0.02y =-0.07 0.08x - 0.06y = 0.07

*Wednesday, July 24, 2013 by Jack*

**stats**

I am having a bit of trouble with the top half of the questions. I have an answer below for questions 5-10, is there anyway you can check those answers and help me with the rest I am having trouble with. Thank you. 1. The area to the right of 1.93 under Student's t-curve with ...

*Monday, July 22, 2013 by sandra*

**stats**

I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 percent of American males are married. You ...

*Monday, July 22, 2013 by sandra*

**finance (math)**

You think that in 15 years it will cost $214,000 to provide your child with a 4-year college education. Will you have enough if you take $75,000 today and invest it for the next 15 years at 5%?

*Monday, July 22, 2013 by zeenat*

**College Algebra**

Find the equation of the parabola y = ax2 + bx + c that passes through the points. To verify your result, use a graphing utility to plot the points and graph the parabola. (−2, −15), (−1, −4), (1/2,-10) y=?

*Sunday, July 21, 2013 by Jack*

**Statistics**

I need help with this please. It is a multiple choice question, so choose one from a,b,c please. I believe the correct is c. What do you think? Ari lives about 10 minutes away from the college to which he intend to attend a summer seminar of 10 weeks. There are two main routes...

*Saturday, July 20, 2013 by Andrew*

**Calculus**

In a study conducted by a certain country's Economic Development Board, it was found that the Lorentz curve for the distribution of income of college teachers was described by the function f(x) = 13/14x^2 + 1/14x and that of lawyers by the function g(x) = 5\7x^4 + 2/7x. (a) ...

*Friday, July 19, 2013 by Anonymous*

**Statistics Help !!!!**

Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students is similar to or different from college ...

*Friday, July 19, 2013 by Tise*

**college statistics**

I am having a bit of trouble with the top half of the questions. I have an answer below for questions 5-10, is there anyway you can check those answers and help me with the rest I am having trouble with. Thank you. 1. The area to the right of 1.93 under Student's t-curve with ...

*Thursday, July 18, 2013 by penelope*

**college statistics**

I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 percent of American males are married. You ...

*Thursday, July 18, 2013 by penelope*

**college chemistry**

I was wonder what bromine/glacial acetic acid solution is used for during the bromination of acetanilide reaction

*Wednesday, July 17, 2013 by Anonymous*

**Calculus**

In a study conducted by a certain country's Economic Development Board, it was found that the Lorentz curve for the distribution of income of college teachers was described by the function f(x) = 13/14x^2 + 1\14x and that of lawyers by the function g(x) = 5\7x^4 + 2\7x (a) ...

*Wednesday, July 17, 2013 by Anonymous*

**Statistics**

Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students is similar to or different from college ...

*Tuesday, July 16, 2013 by Ira*

**college trig**

find the radius of a pulley if rotating the pulley 108.03 degrees raises the pulley 37.3mm

*Monday, July 15, 2013 by brandi*

**Statistics Help !!**

Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students is similar to or different from college ...

*Sunday, July 14, 2013 by Rey*

**Psychology**

I need someone to review my five answers. Inform me if I am correct with my choices as well as correct me if I answered any of them wrong. Thank you! 1) If one wishes to become a professional counselor and has completed the educational requirements and achieved certification ...

*Saturday, July 13, 2013 by Diane*

**College Algebra**

Find an equation that has the given solutions. (There are many correct answers.) -1/6, -8/9

*Saturday, July 13, 2013 by Jack*

**College Physics**

A 7 kg mass hangs on a 10 meter long weightless cord. To the nearest cm, what should the new length of the pendulum be in order that the new frequency be 1.8 times its current value? The correct answer is 309 but I got 250. Heres what I did.. (1/2pi)(sqrt g/L2) = (2/2pi)(sqrt ...

*Saturday, July 13, 2013 by Sammy*

**College Physics**

7 Moles of a gas initially at temperature 300 K is compressed adiabatically from a volume of 1000 cm3 to a volume of 316 cm3. To the nearest tenth of a kJ what is the work done by the piston? (It is a monatomic ideal gas.) I have W = (3/2)nRT1(V1^(gamma-1) V2^(1-gamma) times...

*Saturday, July 13, 2013 by Sammy*

**College Algebra**

Find all solutions of the equation. Check your solutions in the original equation. (Enter your answers from smallest to largest. Enter NONE in any unused answer blanks.) 16t^2/3 + 40t^1/3 + 25 = 0

*Saturday, July 13, 2013 by Jack*

**College Algebra**

A family drove 1080 miles to their vacation lodge. Because of increased traffic density, their average speed on the return trip was decreased by 6 miles per hour and the trip took 2.5 hours longer. Determine their average speed on the way to the lodge.

*Saturday, July 13, 2013 by Matt*

**College Algebra**

10x^2(x-8)^1/3 + 15x(x-8)^4/3

*Saturday, July 13, 2013 by Matt*

**college stats**

Again sorry for all the questions. please help, I am not good at stats and find these questions very difficult. I would appreciate an explanation if possible. 1.What is the sample average? 2.What is the SD of the box? 3.What is the number of draws from the box (the sample size...

*Friday, July 12, 2013 by penelope*

**college stats**

Sorry for all the questions, I really need help and an explanation so I can fully understand. I really appreciate everything. Thank you. In a random sample of 519 judges, it was found that 285 had an introvert personality type. Construct a 95% confidence interval for the ...

*Friday, July 12, 2013 by penelope*

**College stats**

Please help, I would appreciate an explanation on how you got the answer so I can understand it, being that I am so confused. The Denver Post stated that 80% of all new products introduced in grocery stores fail (are taken off the market) within 2 years. A grocery store chain ...

*Friday, July 12, 2013 by penelope*

**College Chemistry**

Based on a Kc value of 0.140 and the data table given, what are the equilibrium concentrations of XY, X, and Y, respectively?

*Friday, July 12, 2013 by Anonymous*

**Calculus**

Four hundred students attended the dedication ceremony of a new building on a college campus. The president of the traditionally female college announced a new expansion program which included plans to make the college coeducational. The number of students who learned of the ...

*Friday, July 12, 2013 by Anonymous*

**college algebra**

if the altitude and the base of a triangle are each increased by 4 inches the area of the triangle will be increased by 42 square inches. if the altitude is increased by 3 inches and the base is decreased by 2 inches the area will be increased by 5 square inches. find the base...

*Friday, July 12, 2013 by quintana*

**college stats**

help please!!! 1. The average number of bumped passengers per day on FliRite Airlines is 2.47 with a standard deviation of 1.75. For a random sample of 40 days, what is the chance the average number of bumped passengers in the sample is between 2 and 2.75? a. About 91% b. ...

*Friday, July 12, 2013 by penelope*

**college stats**

I am having a lot of trouble with these questions can anyone help me please. 2. On September 2, 2004, a Dan Jones poll based on a random sample of 408 Salt Lake County residents reported that 26% of the respondents thought that Mayor Nancy Workman should resign. Find a 95% ...

*Friday, July 12, 2013 by penelope*

**stats college**

Which of the following confidence intervals will be the widest? a. 90 percent b. 95 percent c. 80 percent d. 98 percent

*Friday, July 12, 2013 by penelope*

**College Algebra (Urgent)**

The demand equation for a product is p = 60 – 0.0004x, where p is the price per unit and x is the number of units sold. The total revenue for selling x units is shown below. Revenue = xp = x(40 – 0.0004x) How many units must be sold to produce a revenue of $260,000? (Round...

*Wednesday, July 10, 2013 by Jack*

**College 103 Chem**

How many grams of Sodium Phosphate would you need to make 225ml of 8.00M of stock solution? Thank you

*Wednesday, July 10, 2013 by Andrew*

**statistics**

Miller (2008) examined the energy drink consumption of college undergraduates and found that males use energy drinks significantly more often than females. To further investigate this phenomenon, suppose a researcher selects a random sample of n=36 male undergraduates and a ...

*Wednesday, July 10, 2013 by Janice*