Wednesday

April 16, 2014

April 16, 2014

Post a New Question | Current Questions

**college**

A 5.1 kg object initially at rest at the origin is subjected to the time-varying force shown in Figure P5.25, with the vertical axis in 4 N increments. What is the object's velocity at t = 6 s?
*Tuesday, February 4, 2014 at 8:44pm*

**college chemistry**

Linda, I answered this problem for you earlier. Don't you check your questions for responses.?
*Tuesday, February 4, 2014 at 4:22pm*

**college chemistry**

sorry, Damon. this is a word problem that is on my homework. I think they want to know the kilocalories on this.
*Tuesday, February 4, 2014 at 4:05pm*

**college chemistry**

sorry, Damon. this is a word problem that is on my homework. I think they want to know the kilocalories on this.
*Tuesday, February 4, 2014 at 4:03pm*

**college chemistry**

I do not think the 1/2 cup has anything to do with this problem. It just happens that your amounts, the 16 g, 17 g, and 5 g fit in the half cup. I will just have to believe you about kilocal per gram for each type of poison.
*Tuesday, February 4, 2014 at 3:55pm*

**college chemistry**

Yes, on the right track. The 16 x 4 will give kcal for carbs. The 17 x 9 will give kcal for fat. The 5 x 4 will give kcal for proteins. Then add all of them together for total kcal. You don't need to factor in the 1/2 cup because the problem tells you the grams of protein...
*Tuesday, February 4, 2014 at 3:47pm*

**college chemistry**

to calulate the calories(kcal) in 1/2 cup of soft ice cream that contains 16g carbs, 17g fat, 5g protein. do I multiply 16g x 4 for carbs 17g x 9 for fat 5g x 4 for proteins? then do I do conversion factors for grams to 1/2cup? am I on the right road?
*Tuesday, February 4, 2014 at 3:46pm*

**college chemistry**

to calulate the calories(kcal) in 1/2 cup of soft ice cream that contains 16g carbs, 17g fat, 5g protein. do I multiply 16g x 4 for carbs 17g x 9 for fat 5g x 4 for proteins? then do I do conversion factors for grams to 1/2cup? am I on the right road?
*Tuesday, February 4, 2014 at 3:36pm*

**college chemistry**

q = mass H2O x specific heat H2O x (Tfinal-Tintial) You choose the mass H2O specific heat = 1 Kcal/g Tfinal = 37 Tinitial = you choose. Of course it can't be 100 C (or even 90C) without causing severe burns.
*Tuesday, February 4, 2014 at 2:41pm*

**college chemistry**

Ifwater cools to body temp.37 degrees C., how many kilocalories of heat could be transferred to sore muscles?
*Tuesday, February 4, 2014 at 2:16pm*

**college physics**

(a) use d=vi*t+0.5*a*t^2 manipulate the equation to solve for t 210 m = (23 m/s)t+0.5(0.150 m/s^2)*t^2 t = 9.41 s (b) v = d/t = 210 m/ 9.41 s = 22.3 m/s I'm still trying to figure out the rest...
*Monday, February 3, 2014 at 11:48pm*

**Math**

Beth got a job painting dorm rooms at her college. At top speed, she could paint 5 identical rooms during one 6-hour shift. How long did she take to paint each room? A. 50 minutes B. 1 hour and 10 minutes C. 1 hour and 12 minutes D. 1 hour and 15 minutes E. 1 hour and 20 minutes
*Monday, February 3, 2014 at 8:13pm*

**math**

When Melissa was born, her parents put $8,000 into a college fund account that earned 9% simple interest. Find the total amount in the account after 18 years.
*Monday, February 3, 2014 at 5:47pm*

**mah**

When Melissa was born, her parents put $8,000 into a college fund account that earned 9% simple interest. Find the total amount in the account after 18 years.
*Monday, February 3, 2014 at 5:47pm*

**College Algebra**

are you seriously in college? drop out lol
*Monday, February 3, 2014 at 2:06pm*

**Quick math help**

I need help on how to do system applications word problems. I just don't get this at all :( 1. The ravens won twice as many games as they lost. They played 96 games. How many games did they win? 2. State college has 620 students. There are 20 more women than men. How many ...
*Sunday, February 2, 2014 at 7:01pm*

**College Algebra - incomplete**

pick a value for y and substitute it in to get x.
*Sunday, February 2, 2014 at 5:54pm*

**College Algebra **

solve by the the substitution method 8x+9y=-39
*Sunday, February 2, 2014 at 5:49pm*

**college physics**

Suppose a 200-kg motorcycle is heading toward a hill at a speed of 30.0 m/s. The two wheels are approximately annular rings with an inner radius of 28.0 cm and an outer radius of 33.0 cm. The mass of one wheel is 12 kg.What is the initial rotational kinetic energy
*Sunday, February 2, 2014 at 5:23pm*

**College science**

Do you have answers. If you checked my last answer and it was right you can look at this one. X = distance = Vo*t + 1/2*g*t^2 Vo is 0 and the mass of the pick (piton) doesn't matter. X = 295 m, solve for t = time to strike the ground. Then use V = Vo + g*t. Again, Vo is 0.
*Saturday, February 1, 2014 at 4:52pm*

**College science**

Im in Chem. but looks like physics.. If a rock climber accidentally drops a 70.5 g piton from a height of 295 meters, what would its speed be just before striking the ground? Ignore the effects of air resistance.
*Saturday, February 1, 2014 at 4:34pm*

**Pre-Algebra**

The treasurer of the student body at a college reported that the receipts from a recent contact totaled $916; Furthermore, he announced that 560 people had attended the concert. Students were charged $1.25 each for admission to the concert, and adults were charged $2.25 each. ...
*Saturday, February 1, 2014 at 4:02pm*

**Chemistry**

Thats what it looks like.. but im taking chem. in college and have never had a physics course, im really lost.
*Saturday, February 1, 2014 at 4:02pm*

**College Chemistry**

NaHCO3 + HCl ==> NaCl + H2O + CO2 mols NaHCO3 = grams/molar mass mols NaHCO3 = mols HCl (from the coefficients in the balanced equation.) mols HCl = M x L. You know M and mols, solve for L.
*Saturday, February 1, 2014 at 2:42pm*

**College Chemistry**

In your experiment you weigh out 0.995 g NaHCO3. How much 1.0 M HCl should you add to get the most NaCl?
*Saturday, February 1, 2014 at 1:38pm*

**college chemistry**

1. Write and balance the equation. 2. Use density gasoline to convert 9.0 gallons to grams. 3. Look up the heat of combustion or calculate it from the delta H formation values. 4. heat combustion x (grams gasoline/molar mass gasoline). Post your work or supply details (numbers...
*Saturday, February 1, 2014 at 12:08pm*

**COURSE HELP MEEE**

When you enroll in college, declare pre-med as your major. Your college will then tell you which courses you need to take. Of course you should earn A's in these classes in order to qualify for med school. Remember that after you earn your bachelor's degree, you'll...
*Saturday, February 1, 2014 at 12:08pm*

**college chemistry**

How many megajoules are released when 9.0 gal of gasoline burns. how do I start to do this problem, and what are the steps to get there. thank you
*Saturday, February 1, 2014 at 11:51am*

**COURSE HELP MEEE**

Hi i want to be a pediatrician when i grw up so what course should i take in college ? im already in 3rd yr high school... in the philippines , as for me , i surpassed the k12 before they implement it and the next yr we our batch will be the lasy 4th yr hgh school students to ...
*Saturday, February 1, 2014 at 10:26am*

**Correction**

Not understanding how to answer this You pore over the present evaluation: two intoxicated college females, one DUI and the other trying to run from police officers, both with no prior arrest, and both nursing majors at the local college. As judge, you must decide whether to ...
*Friday, January 31, 2014 at 11:07pm*

**college chemistry**

DrBob222. when you move ice from zero to final T. Do you add 100 cal.?
*Thursday, January 30, 2014 at 5:31pm*

**college chemistry**

melt ice + move ice from zero to final T + cool H2O from 8 to final T = 0 (mass ice x heat fusion) + (mass melted ice x specific heat H2O x (Tfinal-Tinitial) + (mass H2O x speicif heat H2O x (Tfinal-Tinitial) = 0 Solve for mass H2O. I obtained 420 g but you should confirm that...
*Thursday, January 30, 2014 at 3:41pm*

**college chemistry**

a 42 piece of ice at 0.0 C is added to a sample of water at 8.0 C. all of the ice melts and the temperature of the water decreases to 0.0 C. how many grams of water were in the sample.
*Thursday, January 30, 2014 at 3:26pm*

**Jiskha**

Mostly retired teachers, a few college professors, and a few professionals. Reliable? Nearly all the Jiskha voluntees have much more experience and education than what you experience in the classroom.
*Wednesday, January 29, 2014 at 7:25pm*

**College algebra**

If $x is invested at 12%, then .12x - .05(18000-x) = 620
*Wednesday, January 29, 2014 at 5:38pm*

**College algebra**

Things did not go quite as planned. you invested $8,000, part of it in a stock that payed 12% annual interest. However the rest of the money suffered a 5% loss. If the total annual income for both investments was $620.
*Wednesday, January 29, 2014 at 2:38pm*

**social studies**

true. The electoral college chooses the president.
*Wednesday, January 29, 2014 at 1:42pm*

**Statistics**

WEB CALCULATOR EXERCISE Descriptive Statistics 1 The table below presents data for a sample of people who completed a religious survey. Age Gender Denomination Church Attendance 56 1 7 4 46 2 6 5 49 2 6 5 49 1 1 5 27 2 9 5 51 1 4 2 47 2 2 3 67 1 5 4 49 2 2 6 33 1 12 6 55 2 9 5...
*Tuesday, January 28, 2014 at 8:56pm*

**college physics**

To tighten a bolt, you push with a force of 76N at the end of a wrench handle that is 0.26m from the axis of the bolt. What torque are you exerting?
*Tuesday, January 28, 2014 at 8:11pm*

**Chemestry**

This is college chem 132
*Monday, January 27, 2014 at 9:06am*

**college physics**

V = 80km/h = 80000m/3600s = 22.22 m/s. a. V = Vo + a*t = 22.22 m/s. 0 + 1.25t = 22.22. Solve for t. b. V = Vo + a*t = 0 22.22 - 1.75*t = 0. Solve for t. c. V = Vo + a*t = 0 22.22 + a*8.30 = 0. Solve for a; it should be negative.
*Sunday, January 26, 2014 at 3:49pm*

**American National Government**

The 2000 presidential election is an example of where it is possible to win the popular vote but not have a majority vote in the Electoral College. become President by losing both the Iowa Caucus and the New Hampshire Primary. become President without having a recount of ...
*Sunday, January 26, 2014 at 9:51am*

**4e college**

Maria a factorisé l'expression N=-12x^2+14x+48, elle a trouvé : (3x-8)(-4x-6), sans tableur a t'elle tord ou raison ? prouvez le. Cordialement merci
*Sunday, January 26, 2014 at 6:38am*

**College Algebra**

Well what do the words "and" and "or" imply? Do each of these words point to an intersection or union?
*Sunday, January 26, 2014 at 2:21am*

**College Algebra**

A compound inequality uses one of the words and or or. Explain how you will determine whether to use the intersection or union when graphing the solution set
*Saturday, January 25, 2014 at 11:00pm*

**college physics**

a. V = Vo * a*t = 10 + 0.6*7 = 14.2 m/s. b. T = d/r1 - d/r2 = 300/10-300/14.2 = 8.87 s. Saved.
*Saturday, January 25, 2014 at 9:28pm*

**Columbia College**

This question essentially comes down to how many Coulombs of charge 50 electrons have (i.e., the sphere, the initial charge, etc., are irrelevant). So, knowing that one elementary charge is e = 1.6×10^-19 C and that 50 electrons will have a total charge of -50e, -50e &...
*Saturday, January 25, 2014 at 7:16pm*

**Columbia College**

A metal sphere is insulated electrically and is given a charge. If 50 electrons are added to the sphere in giving a charge, how many Coulombs are added to the sphere? Please show step by step...s
*Saturday, January 25, 2014 at 7:08pm*

**neiu**

Is there a significant difference between first year post college incomes of graduates from public versus private institutions? Provide the IV, DV, and best method of analysis. (Points : 6)
*Saturday, January 25, 2014 at 4:44pm*

**Maths literacy,life science,history,geography**

I assume there is a college counselor in your school. You can get much more help there than in a few brief paragraphs here. Heck, you might even try a little research on line yourself, eh? No matter which career path you choose, you will need to learn how to find out ...
*Saturday, January 25, 2014 at 11:37am*

**Maths literacy,life science,history,geography**

I PASSED MATRIC ND I WAS DOING THESE SUBJECTS..I PASSED WITH DIPLOMA.....THIS WAS HOW I WORKED.....#MATHS LITERACY (LEVEL 3) #GEOGRAPHY(LEVEL 3) #HOME LANGUAGE(LEVEL 7) #ENGLISH(LEVEL6) #LO(LEVEL7) #LIFE SCIENCE(LEVEL3)#....I WANT TO KNW WHAT CAN I STUDY AT TUT OR AT COLLEGE.....
*Saturday, January 25, 2014 at 9:53am*

**college physics**

a) A light-rail commuter train accelerates at a rate of 1.25 m/s2. How long does it take it to reach its top speed of 80.0 km/h starting from rest? (b) The same train ordinarily decelerates at a rate of 1.75 m/s2. How long does it take to come to a stop from its top speed? (c...
*Saturday, January 25, 2014 at 2:15am*

**college physics**

A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 10.0 m/s and accelerates at the rate of 0.600 m/s2 for 7.00 s. (a) What is his final velocity? (b) The racer continues at this velocity to the finish line. If he was 300 m ...
*Saturday, January 25, 2014 at 2:14am*

**college physics**

A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 10.0 m/s and accelerates at the rate of 0.600 m/s2 for 7.00 s. (a) What is his final velocity? (b) The racer continues at this velocity to the finish line. If he was 300 m ...
*Saturday, January 25, 2014 at 2:14am*

**college physics**

An express subway train passes through an underground station. It enters at t = 0 with an initial velocity of 23.0 m/s and decelerates at a rate of 0.150 m/s2 as it goes through. The station in 210 m long. (a) How long is the nose of the train in the station? (b) How fast is ...
*Saturday, January 25, 2014 at 2:10am*

**Math**

In which one of the following sentences is the number written correctly? A The college has an endowment of more than $187 million. B The parcel of land was advertised as two hundred forty-three and three-quarters acres. C One hundred and thirty-two people lined up to buy the ...
*Thursday, January 23, 2014 at 11:54pm*

**English**

In which one of the following sentences is the number written correctly? A The college has an endowment of more than $187 million. B The parcel of land was advertised as two hundred forty-three and three-quarters acres. C One hundred and thirty-two people lined up to buy the ...
*Thursday, January 23, 2014 at 11:25pm*

**SS-check my answers plz!!!**

1. A person favoring one side of a political issue is a faction. partisan. a party favor. implying power. 2. The Democratic-Republicans believed in strong state governments and rule by the wealthy class. a national bank. a strong federal government. rule by the people. 3. ...
*Thursday, January 23, 2014 at 8:54pm*

**College Physics**

I used the definition of acceleration acceleration is how much your velocity changes per second. so here it is the change in speed which is zero to 4500 m/s (1000 times the 4.5 because that was kilometers) in 30 seconds.
*Thursday, January 23, 2014 at 3:11pm*

**College Physics**

can you tell me how you got that? I have a test soon and I seriously dont get it
*Thursday, January 23, 2014 at 2:47pm*

**College Physics**

acceleration = change in velocity/change in time =4500 m/s / 30 s = 150 m/s^2 or about 15 g
*Thursday, January 23, 2014 at 2:44pm*

**College Physics**

Assume that an MX missile goes from rest to a suborbital velocity of 4.50 km/s in 30.0 s (the actual speed and time are classified). What is its average acceleration in m/s2? What is its average acceleration in multiples of g?
*Thursday, January 23, 2014 at 2:41pm*

**Anatomy & Physiology**

College. Anatomy&P 1 and 2
*Thursday, January 23, 2014 at 2:32pm*

**Anatomy & Physiology**

Wait is this college stuff or high school stuff?
*Thursday, January 23, 2014 at 2:31pm*

**English**

Well, just brainstorm and picture the sense in your head. I've seen a shooting happen in a college parking lot thats all.
*Thursday, January 23, 2014 at 2:21pm*

**college physics**

Are you Daniel Spry?
*Thursday, January 23, 2014 at 2:13pm*

**college physics**

i forgot
*Thursday, January 23, 2014 at 2:08pm*

**college physics**

v = a t 1.6 = 1.2 t t = 1.33 seconds Vi = 1.60 v = Vi + a t 0 = 1.60 + a * 0.8 a = - 2 m/s^2
*Thursday, January 23, 2014 at 1:12pm*

**college physics**

A commuter backs her car out of her garage with a constant acceleration of 1.20 m/s2. (a) How long does it take her to reach a speed of 1.60 m/s? s (b) If she then brakes to a stop in 0.8 s, what is her (constant) deceleration?
*Thursday, January 23, 2014 at 1:07pm*

**Pre-Calc**

The attendance A (in millions) at NCAA womens college basketball games for the years 1994 thru 2000 is shown in the table, where t represents the year, with t=4 corresponding to 1994. year t attendance a 4 4.557 5 4.962 6 5.234 7 6.734 8 7.387 9 8.698 10 8.825 a. use the ...
*Wednesday, January 22, 2014 at 8:18pm*

**academic execellence**

Becoming a discerning consumer of research is something you can achieve by practicing good research skills and using your A. critical thinking B. education C. resources D. college library
*Wednesday, January 22, 2014 at 7:24pm*

**achieving academic execellence**

Becoming a discerning consumer of research is something you can achieve be practicing good research skills and using your A. critical thinking B. education C. resources D. college library
*Wednesday, January 22, 2014 at 7:21pm*

**College Math**

L= 60m W= 30m
*Wednesday, January 22, 2014 at 11:03am*

**intro to computers**

what type of device is characteristic of an enterprise environment? a workstation used by a retired person. a workstation used at an engineering firm. a tablet computer used by an elementary school student a notebook used by a college student
*Tuesday, January 21, 2014 at 6:33pm*

**college math HELP!!!!!**

P = -x/25 + 190 = -2250/25 + 190 = $100. = Equilibrium price. Check: P = x/75 + 70 = 100 x/75 = 30 X = 2250 Units.
*Monday, January 20, 2014 at 10:34pm*

**college math HELP!!!!!**

i need to find equilibrium price using these two equations: P= -(1/25)x+190 P= (1/75)x+70 the equilibrium quantity is: 2250 units the equilibrium price is: ______?
*Monday, January 20, 2014 at 2:34pm*

**college math HELP!!!!!**

the demand rises by 750 when the price drops by 30, so d = 250 + 25(180-x) the supply rises by 750 when the price rises by 10, so s = 750 + 75(x-80) Now just set d=s and solve for x, the equilibrium price. Plug that back into either equation to figure the quantity
*Monday, January 20, 2014 at 5:46am*

**college math HELP!!!!!**

The quantity demanded x each month of Russo Espresso Makers is 250 when the unit price p is $180; the quantity demanded each month is 1000 when the unit price is $150. The suppliers will market 750 espresso makers if the unit price is $80. At a unit price of $90, they are ...
*Sunday, January 19, 2014 at 11:23pm*

**college finite math**

The quantity demanded x each month of Russo Espresso Makers is 250 when the unit price p is $180; the quantity demanded each month is 1000 when the unit price is $150. The suppliers will market 750 espresso makers if the unit price is $80. At a unit price of $90, they are ...
*Sunday, January 19, 2014 at 7:36pm*

**college finite math**

A product may be made using Machine I or Machine II. The manufacturer estimates that the monthly fixed costs of using Machine I are $17,000, whereas the monthly fixed costs of using Machine II are $14,000. The variable costs of manufacturing 1 unit of the product using Machine...
*Sunday, January 19, 2014 at 7:36pm*

**college finite math**

A division of a company produces "Personal Income Tax" diaries. Each diary sells for $6. The monthly fixed costs incurred by the division are $30,000, and the variable cost of producing each diary is $1. (a) Find the break-even point for the division. (x, y) = (6000...
*Sunday, January 19, 2014 at 7:32pm*

**college finite math**

Cowling's Rule is a method for calculating pediatric drug dosages. If a denotes the adult dosage (in milligrams) and if t is the child's age (in years), then the child's dosage is given by D(t) = (t + 1/24)a (a) Show that D is a linear function of t. Hint: Think of...
*Sunday, January 19, 2014 at 7:29pm*

**college finite math**

Cowling's Rule is a method for calculating pediatric drug dosages. If a denotes the adult dosage (in milligrams) and if t is the child's age (in years), then the child's dosage is given by D(t) = (t + 1/24)a (a) Show that D is a linear function of t. Hint: Think of...
*Sunday, January 19, 2014 at 7:29pm*

**college finite math**

For wages less than the maximum taxable wage base, Social Security contributions (including those for Medicare) by employees are 7.65% of the employee's wages.† (a) Find an equation that expresses the relationship between the wages earned (x) and the Social Security ...
*Sunday, January 19, 2014 at 7:27pm*

**SAT**

please help. I am a foreigner. I need to get into a US college for a bright future. I bought the College Board SAT book. It has no word lists. How do I do well in the SAT? Any tips? Please give me help.
*Sunday, January 19, 2014 at 6:57pm*

**English**

http://voices.yahoo.com/10-reasons-why-college-important-1939022.html http://www.google.com/webhp?source=search_app#q=college+important+quotes
*Saturday, January 18, 2014 at 1:12pm*

**English **

I have to write an essay on "Why is college important to me" and I have to find two references and each reference must use quoted passage. Where can I find references for this topic because it's asking for my opinion please u need help please tell me what ...
*Saturday, January 18, 2014 at 12:54pm*

**college physics**

The sound level when one child is talking in a room is 60.0 dB. What would be the sound level if all 20 children talk at the same time in the same room? Assume each child talks equally loudly.
*Saturday, January 18, 2014 at 2:32am*

**Grammatical errors?**

Dear Prospective Host Teacher and Principal: Thank you for allowing me to be a part of your learning community. I am quite jubilant to have my first PPIE experience with you. Education has interested me for a large portion of my life and I often find myself volunteering with ...
*Friday, January 17, 2014 at 11:16pm*

**math**

From a survey of 100 college students, a marketing research company found that 65 students owned iPods, 35 owned cars, and 25 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)?
*Tuesday, January 14, 2014 at 2:20pm*

**ALGEBRA**

From a survey of 100 college students, a marketing research company found that 65 students owned iPods, 35 owned cars, and 25 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)?
*Tuesday, January 14, 2014 at 2:19pm*

**College Alg.**

37 / (k^2 - k - 30) I suspect 37/[(k-6)(k+5)] this is UNDEFINED for k = 6 and for k = -5. (denominator = 0) all other real k is in the domain
*Sunday, January 12, 2014 at 6:23pm*

**College Alg.**

How do you find the domain of 37 ____ k2-k-30
*Sunday, January 12, 2014 at 6:17pm*

**ALGEBRA**

From a survey of 100 college students, a marketing research company found that 35 students owned iPods, 25 owned cars, and 5 owned both cars and iPods How many students owned either a car or an iPod (but not both)? How many students do not own either a car or an iPod? 236 ...
*Sunday, January 12, 2014 at 3:23am*

**College Mathematics**

0-97
*Saturday, January 11, 2014 at 1:18am*

**Statistics: Percentile Rank**

A survey of college students was conducted during final exam week to assess the number of cups of coffee consumed each day. The mean number of cups was 5 with a standard deviation of 1.5 cups. The distribution was normal. A. What proportion of students drank 7 or more cups of ...
*Friday, January 10, 2014 at 7:36pm*

**algebra**

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, January 10, 2014 at 8:51am*

**College Algebra**

how much acid is in 50 liters of 80% solution
*Wednesday, January 8, 2014 at 9:25pm*

**college? algebra**

7y-6=5y+44 2y = 50 y = 25
*Tuesday, January 7, 2014 at 6:00pm*

**college algebra**

what is 7y-6=5y+44
*Tuesday, January 7, 2014 at 5:52pm*

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