Tuesday

March 3, 2015

March 3, 2015

Post a New Question | Current Questions

**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*

**College Algebra**

You wish to fence a circular garden of area 70 square meters. How much fence do you need?
*Friday, July 25, 2014 at 5:33pm*

** 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*

**College Algebra**

Give a piece-wise function p(x) where p(2)=5 and p(-1)=3
*Thursday, July 24, 2014 at 4:59pm*

**English/ Help**

Choose the sentence that does not include a usage error. A) Today’s college students may have grown up in the age of music sampling and file-sharing; however, they should realize that cutting and pasting sentences from a Wikipedia article constitutes plagiarism. B) Today...
*Tuesday, July 22, 2014 at 8:40pm*

**English/ Help**

Choose the sentence that does not include a usage error. A) In his article, the author implies that plagiarism is more prevalent among today’s generation of college students than it was among previous generations. B) In his article, the author infers that plagiarism is ...
*Tuesday, July 22, 2014 at 8:38pm*

**Chemistry**

Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.200 M phosphoric acid solution. pKa1 = 2.16 pKa2 = 7.21 pKa3 = 12.32 Ok I haven't been able to ...
*Monday, July 21, 2014 at 1:48pm*

**College math**

A rock is thrown from the top of a tower that is 400 feet tall. If its height above the ground can be modeled by h = -16t2 + 64t +400 where h is in feet, and t is in seconds. To the nearest tenth of a second, how long does it take the rock to reach the ground? To the nearest ...
*Sunday, July 20, 2014 at 1:40pm*

**College math**

7) A rectangular pen can be constructed using the side of a barn as one boundary and 5500 ft. of fence to make the other three sides. Find the length and width of the rectangle to make the largest area. Hint: Draw a picture- and label the sides of the rectangle. And solve the ...
*Sunday, July 20, 2014 at 1:38pm*

**college statistics**

The CEO of ABC manufacturing commissioned a study to look at the differences between the current salaries of her employees (n = 474) and their starting salaries. The study collected current and beginning salary data for each of the 474 employees and the researcher conducted a ...
*Sunday, July 20, 2014 at 12:47pm*

**Education/College**

I have to invent a fictional character and do charts on them from infancy to early childhood,middle and late childhood adolescence, and early adulthood. I have to give this character a name , race, gender and parents. I will have to find pictures to portray my character at all...
*Monday, July 14, 2014 at 6:30pm*

**Education/College**

I am now in a Life Span Development course. I need an example of a personal experience that involves nurture in regard to human development
*Monday, July 14, 2014 at 2:56pm*

**college algebra 1**

Order the fraction in each set frim least to greater 2/7,6/7,2/3,1/7,5/7
*Saturday, July 12, 2014 at 9:11pm*

**Education/College**

In what ways does understanding the origins of the educational system in the U.S. be useful to me as a future educator?
*Saturday, July 12, 2014 at 2:10pm*

**Education/College**

The role of education is society.... What types of educational opportunities were available to people in a global society? Do people need education in a Global society? What types? Why or Why not? What is the role of education in society today? What is it designed to ...
*Friday, July 11, 2014 at 2:20pm*

**College Algebra**

15x^2-23x-21 /3x-7
*Thursday, July 10, 2014 at 9:04pm*

**college physics 2**

steel train rails are placed end to end with space in between on a day where a temperature is 30 degrees. How much stress will be build if the temperature is increase to 150 degrees .assume that the original is 1.5m
*Monday, July 7, 2014 at 2:12am*

**College Algebra I **

5x – 9y = 7, 7y – 3x = -5
*Sunday, July 6, 2014 at 3:01pm*

**Finance**

Debbie Snyder has just graduated from college and needs to buy a car to commute to work. She estimates that she can afford to pay about $ 450 per month for a loan or lease and has about $ 2,000 in savings to use for a down payment. Develop a plan to guide her through her first...
*Sunday, July 6, 2014 at 2:41pm*

**English**

Words to choose from: Commemorate, complacent, consensus, deplete, diligent, empathy, menial, niche, transcend, and waive At Eastman High School reunions, the conversation usually gets around to the question “who was our best teacher?” And year after year, the (1) ...
*Thursday, July 3, 2014 at 7:42am*

**Math**

he physics department of a college has 9 male professors, 8 female professors, 10 male teaching assistants, and 13 female teaching assistants. If a person is selected at random from the group, find the probability that the selected person is a teaching assistant or a female
*Wednesday, July 2, 2014 at 9:42pm*

**reading**

credible,cursory,designate,deviate,improvise,interim,latent,secular,shun,simulate. In seventh grade, Jack looked upon girls with great disdain. Then, in the ____(Interim) between seventh and eight grades, his___(Latent)interest in them suddenly surfaced. In ...
*Wednesday, July 2, 2014 at 5:57pm*

**reading**

words to choose from: credible,cursory,designate,deviate,improvise,interim,latent,secular,shun,simulate. In seventh grade, Jack looked upon girls with great disdain. Then, in the ____ between seventh and eight grades, his___interest in them suddenly surfaced. In ...
*Wednesday, July 2, 2014 at 4:25pm*

**College/Education**

can you recommend some web sites to look for jobs in the field of Education, besides a teacher or administrator.It has to be a non-traditional role like , training and staff development, educational policies, community programs, educational research and evaluation, curriculum ...
*Wednesday, July 2, 2014 at 4:07pm*

**Education/College**

!954 to 1980 How did the laws intended to increase access , help to eliminate the challenges faced by disenfranchised groups and open doors for educational opportunities. Did these laws create additional issues that needed to be solved. If so how?
*Wednesday, July 2, 2014 at 3:53pm*

**college physics**

A block of mass 21.5 kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 3.79 m/s2. what is the tension in the cable? what is the magnitude of the net force acting on the mass? what is the speed of the...
*Tuesday, July 1, 2014 at 12:28pm*

**college physics**

A block of mass 21.5 kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 3.79 m/s2. what is the tension in the cable? what is the magnitude of the net force acting on the mass? what is the speed of the...
*Monday, June 30, 2014 at 11:43pm*

**Math**

Sara had just rented her first apartment starting December 1 before beginning college in January. The apartment had washer and dryer hook-ups, so Sara wanted to buy the appliances to avoid trips to the Laundromat. The Saturday newspaper had an advertisement for a local ...
*Monday, June 30, 2014 at 3:02pm*

**history civilization thesis help.**

The agricultural revolution marked a decisive turning point in human history. What evidence might you offer to support this claim, and how might you argue against it? That's the essay question. I'm in college so i'm expected to give a really good essay but i suck. ...
*Friday, June 27, 2014 at 5:43pm*

**math**

Barry heard in his Personal Finance class that he should start investing as soon as possible. He had always thought that it would be smart to start investing after he finishes college and his salary is high enough to pay the bills and to have money left over. He projects that ...
*Thursday, June 26, 2014 at 9:06pm*

**Math**

Sara had just rented her first apartment starting December 1 before beginning college in January. The apartment had washer and dryer hook-ups, so Sara wanted to buy the appliances to avoid trips to the Laundromat. The Saturday newspaper had an advertisement for a local ...
*Thursday, June 26, 2014 at 5:50pm*

**math**

Sara had just rented her first apartment starting December 1 before beginning college in January. The apartment had washer and dryer hook-ups, so Sara wanted to buy the appliances to avoid trips to the Laundromat. The Saturday newspaper had an advertisement for a local ...
*Thursday, June 26, 2014 at 12:42am*

**Math**

Score Skateboard Company is a small firm that designs and manufactures skateboards for high school and college students who want effective, fast transportation around campus. Score has two employees who receive $1,100 gross pay per semimonthly pay period and four employees who...
*Wednesday, June 25, 2014 at 12:22am*

**college chem**

You are instructed to create 400. mL of a 0.40 M phosphate buffer with a pH of 6.9. You have phosphoric acid and the sodium salts NaH2PO4, Na2HPO4, and Na3PO4 available. (Enter all numerical answers to three significant figures.) H3PO4(s) + H2O(l) equilibrium reaction arrow ...
*Monday, June 23, 2014 at 10:25pm*

**Physics I for College**

a rope that makes an angle of 30 degrees with the horizontal drags a crate along the floor. what must be the tension in the rope if a horizontal force of 40N is needed to drag the crate? please help me. i really didn't understand what my professor told me. he speak so fast...
*Monday, June 23, 2014 at 10:07am*

** college physics **

An ultrasonic motion sensor sends very short pulses for ultrasound to measure the distance to an object . The sensor cannot send another pulse until the echo form the previous pulse is detected. What is the maximum possible number of individual measurements per second if the ...
*Thursday, June 19, 2014 at 8:44pm*

**statistics **

A researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 490 college students showed that 33% of them had, or intended to, cheat on examinations. Find the margin of error for the 95% confidence interval. solution I have but what do I ...
*Thursday, June 19, 2014 at 5:20pm*

**College Alegbra**

A new store opens in New York. You received a coupon for $5.00 off a pair of jeans j(x) = x-5. When you get to the store you learn that they are giving a 25% discount d(x)=.75x a) Write a composite function for the cost of the jeans if the 25% discount is applied after the $5....
*Thursday, June 19, 2014 at 12:22pm*

**math**

From a survey of 100 college students, a marketing research company found that 55 students owned iPods, 25 owned cars, and 15 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)?
*Thursday, June 19, 2014 at 11:14am*

**college physics**

"The Magnitude of the buoyant force is equal to the weight of fluid displaced” is a statement of which principle in the study of fluids? Select one: a. Pascal's Principle b. Archimedes' Principle c. Bernouilli’s Principle d. The Equation of Continuity
*Monday, June 16, 2014 at 5:17pm*

**Science**

I REALLY REALLY NEED HELP SO 1.I need to do an essay asking you (me)to explain what is the difference between erosion,transport,and deposition?... 2.another essay asking me to explain you (me) to explain the destructive and positive effects of a volcanic erupyion?... 3.a short...
*Saturday, June 14, 2014 at 4:24pm*

**College Algebra **

A quadratic function has its vertex at the point (-9,8). The function passes through the point (9,4). When written in vertex form, the function is f(x)= a(x-h)^2 +k, where a) h)-9 k)8 4=a(9)^2+8 4=a(9+9)^2+8 4=a(18)^2+8 4=a(332) a=0.01204 I was able to find both h & k. but the...
*Thursday, June 12, 2014 at 9:16pm*

**College Algebra **

The graph of a quadratic function f(x) is shown above. It has a vertex at (-2,4) and passes the point (0,2). Find the quadratic function y=a(x-(-2))^2+4 y=a(x+2)+4 2=a(x+2)+4 -4 -4 -2=a(0+2)/2 -1+ a function -1(x+2)+4 ? Im not sure where Im going wrong but my answer was ...
*Thursday, June 12, 2014 at 9:13pm*

**STAT**

A college faculty consists of 400 men and 250 women. The college administration wants to draw a sample of 65 faculty members to ask their opinion about a new parking fee. They draw a simple random sample of 40 men and another simple random sample of 25 women.
*Tuesday, June 10, 2014 at 9:23pm*

**personal finance**

If Bridgette marrow is a sophomore at state college ad is running out of money. wanting to continue her education, Bridget is considering a student loan. Explain her options. How can she best minimize her borrowing costs and maximize her flexibility?
*Sunday, June 8, 2014 at 10:13pm*

**READING**

words to use: curtail, devastate, digress,incentive, incorporate, indispensable,intermittent,rigor,squander and succumb.... Linda never had to work hard to make good grades in high school. But in college, where the rigors of course work were greater, she soon learned ...
*Saturday, June 7, 2014 at 11:23pm*

**reading**

words to use: curtail, devastate, digress,incentive, incorporate, indispensable,intermittent,rigor,squander and succumb.... Linda never had to work hard to make good grades in high school. But in college, where the rigors of course work were greater, she soon learned ...
*Saturday, June 7, 2014 at 10:25pm*

**reading**

words to use: curtail, devastate, digress,incentive, incorporate, indispensable,intermittent,rigor,squander and succumb.... Linda never had to work hard to make good grades in high school. But in college, where the rigors of course work were greater, she soon learned ...
*Saturday, June 7, 2014 at 9:53pm*

**vocabulary**

Please check for correction ! words to use: curtail, devastate, digress,incentive, incorporate, indispensable,intermittent,rigor,squander and succumb.... Linda never had to work hard to make good grades in high school. But in college, where the rigors of course work ...
*Saturday, June 7, 2014 at 8:49pm*

**college physics**

A horizontal spring with a spring constant k = 322 N/m is uncompressed from a length of 1.4 cm back to its unstretched length. Calculate the change in potential energy in Joules to 2 s.f.
*Saturday, June 7, 2014 at 6:43pm*

**college physics**

You shoot a 57 gram dart vertically upwards from a catapult with a spring constant of 379 N/m. The catapult is initially stretched from the equilibrium point by 30 cm. What is the height above the starting point reached by the dart? Ignore air resistance and give your answer ...
*Saturday, June 7, 2014 at 6:42pm*

**math**

A researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 400 college students showed that 33% of them had or intended to, cheat on examinations. Find the margin of error for the 95% confidence interval.
*Thursday, June 5, 2014 at 8:41pm*

**math**

A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at college. Give the 95% confidence interval.
*Thursday, June 5, 2014 at 8:27pm*

**math**

Student credit cards typically require that one be enrolled in a 2- or 4-year college/university and
*Wednesday, June 4, 2014 at 8:31pm*

**College Algebra **

The width of a rectangle is 2 less than twice its length. If the area of the rectangle is 82 cm^2, what is the length of the diagonal? Note: Your answer must be a number. It may not contain any arithmetic operations. w(w+20) = 8000 w^2+20w = 8000 w^2+20w-8000 = 0 (w-80)(w+100...
*Monday, June 2, 2014 at 6:43pm*

**College Algebra ..Please help**

I have about 5 homework problem that I am stuck on! please help me. The first of 5 is: A rectangular garden is 20 ft longer than it is wide. Its area is 8000 ft{}^2. What are its dimensions? Im not even sure where to start with this one. Next #2: The area of a rectangle is 16...
*Monday, June 2, 2014 at 6:36pm*

**College Algebra **

A rectangular garden is 20 ft longer than it is wide. Its area is 8000 ft{}^2. What are its dimensions? w(w+20) = 8000 w^2+20w = 8000 w^2+20w-8000 = 0 (w-80)(w+100) = 0 w-80 = 0 w=80 or w+100 = 0 w = -100 I think that x=80 makes more sense. However what would the length be if ...
*Monday, June 2, 2014 at 6:23pm*

**college algebra**

A rectangular garden is 20 ft longer than it is wide. Its area is 8000 ft{}^2. What are its dimensions? Let "w" equal the width w+20=8000 w^2+20=8000 not sure how to continue
*Monday, June 2, 2014 at 2:35pm*

**College Algebra **

I'm sorry I wrote the problem wrong previously. "The equation x^2-9x-1=0 has 2 solutions A and B. Where A < B. x^2-9x-1=0 (x-9)x=1 x^2=9x+1 (x-9/2)^2-85/4=0 Solutions x=1/2(9- sq root 85) and x=1/2(9 + sq root 85) I also have a second similar problem. 2x^2+17x+2=0 ...
*Monday, June 2, 2014 at 2:14pm*

**College Algebra **

The problems reads: "The equation x^2-9x=0 has 2 solutions A and B. Where A < B. The answers I got where x=0 and x=9, however my online homework is saying its incorrect. Please help me (x-9)x=0 x^2=9x (x-9/2)^2-81/4=0
*Monday, June 2, 2014 at 1:49pm*

**Algebra**

A mother wants to invest 8,000 dollars into her child's college fund. She invests a portion of the money into a CD account which earns 4% interest, and the remainder into a savings bond which earns 7% interest. If the total interest earned after one year is $480.00, how ...
*Sunday, June 1, 2014 at 12:35pm*

**math**

Bridget Morrow is a sophomore at State College and is running out of money. Wanting to continue her education, Bridget is considering a student loan. Explain her options. How can she best minimize her borrowing costs and maximize her flexibility?
*Saturday, May 31, 2014 at 2:38am*

**college algebra **

The sum of three consecutive natural numbers is 651, find the numbers. 3*7*31 21*31=651 is what I put for my answer but that was incorrect on the homework. Please help me Another Question I had problems with was :Your weekly paycheck is 25 percent less than your coworker's...
*Thursday, May 29, 2014 at 8:43pm*

**college algebra **

Two cyclists, 64 miles apart, start riding toward each other at the same time. One cycles 3 times as fast as the other. If they meet 2 hours later, what is the speed (in mi/h) of the faster cyclist? Let "x" be the slower rate the faster rate is "3x" x+3=2x ...
*Thursday, May 29, 2014 at 8:33pm*

**college algebra**

One positive number is one-fifth of another number. The difference between the two numbers is 200, find the numbers. Im not sure how to approach this problem x-1/5 = x+200 ? I also keep wanting to divided 200/5 .. Please help Im all over the place not sure what to do
*Thursday, May 29, 2014 at 7:51pm*

**college algebra**

Phyllis invested 55000 dollars, a portion earning a simple interest rate of 4 percent per year and the rest earning a rate of 7 percent per year. After one year the total interest earned on these investments was 2830 dollars. How much money did she invest at each rate? 2380-x...
*Thursday, May 29, 2014 at 7:43pm*

**College Algebra **

Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 15 hours, and on the trip back averaged 50 mi/h. She returned home 41 hours after leaving. How many miles is City A from City B Distance = Speed * Time D= 35...
*Thursday, May 29, 2014 at 4:59pm*

**College Algebra **

x/(2x-4)-7=1/(x-2).. How I clear this denominator if I must clear it at all.. Im not sure how to approach these problems.I have several others similar to this 1/2y+ 4= 1/7y I changed the denominators to 14y, then got 7/14y+ 4= 2/7y but my online homework says that is incorrect...
*Wednesday, May 28, 2014 at 11:08pm*

**College Algebra **

7/(x+1) - 3/2 =6/(3x+3) Im not sure how to begin, I thought abou clearing the denominators by multiply everything by (x+1)(2)(3x+3) but that didnt work out.
*Wednesday, May 28, 2014 at 10:57pm*

**College Algebra **

2/9+-5/6= -8 -(-3/7 k) The answer I got found was 82k=-903 I then divided that by 82 and found k=-11.0121. Which was incorrect, please help me.
*Wednesday, May 28, 2014 at 10:55pm*

**College Algebra **

Let Z be equal to (2-5i) The question is z^2 +iz -(5+i) The answer I got for this was -22 + 18i but it isn't correct on my homework page please help/
*Wednesday, May 28, 2014 at 10:23pm*

**College Algebra **

Write the following in a+bi form (-5-i)/(3-3i) -5/3 and 1/3i (-5/2i)/(-1/5i) 23 and 0i (-2i)^3 -2 and 0 Im having trouble with these probems and here is my answers. PLEASE HELP
*Wednesday, May 28, 2014 at 10:17pm*

**College Algebra **

Write the following a+bi form i(3.14-3i) Please help. I believe that the answer is 3.14i-3i, which would be (3.13*-1)-3*-1. however this was incorrect please tell me where I went wrong
*Wednesday, May 28, 2014 at 10:10pm*

**college**

all of the following are assets excep
*Monday, May 26, 2014 at 7:52pm*

**college**

the fair labor standards act
*Monday, May 26, 2014 at 7:51pm*

**college physics**

A student of mass 64.7 kg climbs up the stairs in the Physics Department, with a vertical height change 3.1 metres. What is the change in gravitational potential energy? Give your answer in Joules, to 2 significant figures.
*Monday, May 26, 2014 at 1:06am*

**college physics**

What work is done by a friction force acting on an object? Select one: a. Always negative b. Always positive c. May be positive or negative depending on the choice of coordinate system d. Always zero
*Monday, May 26, 2014 at 1:03am*

**Introduction To Business**

Hi, could someone help me please with the following questions? Thanks 1. Carmen Santiago works for a number of businesses as a “consultant.” She has helped design accounting systems, provided accounting services, and analyzed the financial strength of her clients&#...
*Sunday, May 25, 2014 at 7:29pm*

**college physics**

A car travels around a bend of radius R at a speed v1, experiencing a centripetal acceleration ac. The car then travels around a curve with the same radius R, but with a centripetal acceleration which has twice the magnitude of ac. What speed is the car moving, when going ...
*Sunday, May 25, 2014 at 6:43pm*

**maths**

If 15 students walk to college and 35 gets the bus, what percentage walk to college?
*Friday, May 23, 2014 at 5:32pm*

**college calculus**

the amount of carbon-14 in a mammoth's bone is 45% of the amount found in a living organism. How long ago did the mammoth die? the half-life of carbon-14 is about 5,730 years.
*Thursday, May 22, 2014 at 4:44pm*

**Child Development **

Rachel is a highechool student who has explored several employment and education alternatives. She has chosen to attend the community college near home to become a diesel mechanic. What is the identity status of Rachel according to James Marcia? A. Identity diffusion B. ...
*Tuesday, May 20, 2014 at 7:58pm*

**MATH HW HELP!!**

As a savings plan for college, when their son Bob was born, the Wilburs deposited $10,000 in an account paying 8% compounded annually. How much will the account be worth when Bob is 18 years old?
*Tuesday, May 20, 2014 at 7:24pm*

**State in transition**

which best describes social changes in south carolina since 1980? A.)Women are less likely to attend college than men. B.)Fewer women are holding jobs traditionally held by males. C.)A greater number of women have careers outside the home.<---- I chose this one. D.) More ...
*Tuesday, May 20, 2014 at 4:49pm*

**data analysis**

A survey of 1500 college students found that 675 stay on campus in a dorm. Find the mean and standard deviation of the proportion of the sample.
*Tuesday, May 20, 2014 at 9:39am*

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