Thursday

September 3, 2015
Total # Posts: 702

**Science**

a)How much work is required to lift a 35-kg object from the ground 3.0 m into the air? b) How much gravitational potential energy did this object gain?
*June 6, 2014*

**Science**

Calculate the work done in each of the following situations. a) A horse pulls a wagon with a force of 1200 N and moves it 15 m. b) A cable lifts an elevator 16 m by using a cable with a tension force of 2500 N.
*June 5, 2014*

**science**

When you do work to lift an object, what form of energy does the object gain
*June 5, 2014*

**Science**

An object has a mass of 5.0 kg on the surface of the Moon. What would be the object's: a) mass on Earth b) force of gravity on Earth
*May 28, 2014*

**Health**

help**
*May 25, 2014*

**Health**

What is Marijuana ? Can you get cancer from Marijuana ? Is it good or bad for you? I need h
*May 25, 2014*

**Language **

I need help answering this question.. How did you or your family deal or cope with these issues? These are the social justice issues i came up with : Poverty, Alcohol & drinking, violence, racism, and lack of human rights.. I know it's my own opinion but I don't know ...
*May 25, 2014*

**Math**

A) temperature readings taken over five years
*May 23, 2014*

**Math**

State the types of graphs that you could use to present each set of data below.Which type of graph do you think is most appropriate? Data
*May 23, 2014*

**History**

Ontario,Quebec,Nova Scotia and New Brunswick
*May 21, 2014*

**History **

Explain why some british politicians thought it would be good for Great Britain to keep the colonies?
*May 21, 2014*

**History**

in which ways did the colonies of British north america benefit from the intercolonial railways
*May 21, 2014*

**English**

No just an essay not a life story
*May 20, 2014*

**English**

What's a good title for a mother Teresa essay?
*May 20, 2014*

**Science**

The meter per second squared is the unit of Acceleration. My answer is a, acceleration.
*May 20, 2014*

**English**

Thank you.
*May 19, 2014*

**English**

What does this sentence mean? It was a rainy season which caused the river to be swollen.
*May 19, 2014*

**Math**

Jane has a set of green, black and yellow pens. The green pens make up 1/3 of the set, the set has 5 black pens, the yellow pens is twice the number of black pens. How many pens are in Jane set?
*May 18, 2014*

**chemistry**

if 21.54 grams of caco3 is added to an ecxess of HCl in the equation Cacl3+2Hcl produces Cacl3+co2+H20, what mass does co2 produce?
*May 13, 2014*

**math**

The deck of a swimming pool had the same width all the way around. The perimeter of the pool is 50m. The outside perimeter of the deck is 74m. What is the width of the deck?
*May 12, 2014*

**math**

How do I find the number of millimeters long a beak is?
*April 28, 2014*

**physics grade 10 icse**

two balls of masses in ratio 1:2 are dropped from the same height find : a. the ratio between their velocities when they strike the ground and b. the ratio of the forces acting on them during motion
*April 13, 2014*

**Math**

Mr. Garcia bought 8 cars at 52 each for a total of 416. He bought 11 planes (3 more planes than cars) at 38 each (52-14) for a total of 418. Add 416 to 418 and there is 834 total.
*March 27, 2014*

**Art - Help ASAP!!**

i checked the website but its not there
*March 21, 2014*

**Art - Help ASAP!!**

how many years does it take to finish the course sculpture at OCAD university??
*March 21, 2014*

**Need Math Help Please **

in probability why are tree diagrams more useful than to use tables ?? please explain to me in a paragraph so i understand completely and could you please show me an example where i would have to use the tree diagram, and why i couldnt use a table???
*March 20, 2014*

**Need math help please **

could someone please give me an example not an example using coins, marbles, spinner, like something different that would explain the difference b/w theoretical and experimental probability.
*March 20, 2014*

**Math Help**

could someone please give me an example not an example using coins, marbles, spinner, like something different that would explain the difference b/w theoretical and experimental probability. And please explain.
*March 20, 2014*

**Math Help **

in probability why are tree diagrams more useful than to use tables ?? please explain to me in a paragraph so i understand completely and could you please show me an example where i would have to use the tree diagram, and why i couldnt use a table???
*March 20, 2014*

**Math help understand **

Have world problem and I don't get it please explain step by step simplify and show me as many ways as possible cause one might be easier than other !! A bicycle travels at constant speed of 15km/hr. Bus starts 195km behind bicycle and catches up to bicycle in 3 hrs. What...
*March 20, 2014*

**science pls help**

True or False 1. If a 40 kg person is accelerating at 10 m/s2, then the magnitude of the force acting on him or her is 400 N. (1 point) true false Multiple Choice 2. How much force is needed to make a 60 kg object accelerate at a rate of 2.0 m/s2? (1 point) 62 N 62 kg 120 N ...
*March 13, 2014*

**CHEMISTRY**

When 6.724 g of one of the hydrates of sodium sulfate (Na2SO4) was heated to drive off its water of hydration, the residue of anhydrous sodium sulfate has a mass of 2.964 g. What is the value of x in the formula for the hydrate, Na2SO4•xH2O?
*March 7, 2014*

**CHEMISTRY**

Thank you so much!
*March 7, 2014*

**CHEMISTRY**

A lawn fertilizer is rated as 6.50% nitrogen, meaning 6.50 g of N in 100 g of fertilizer. The nitrogen is present in the form of urea, (NH2)2CO. How many grams of urea are present in 100 g of the fertilizer to supply the rated amount of nitrogen?
*March 7, 2014*

**Calculus**

I need help finding the derivative of √3x/(x^2-4) at x=3
*February 17, 2014*

**Statistics in Psychology**

A researcher finds that the correlation between variable A and variable B is r= 5 1.20. She also finds that the correlation between variable C and variable B is r= 5 2.40. Which relationship is scientifically more useful and by how much?
*February 10, 2014*

**Statistics in Psychology**

What research steps must you go through to use the relationship between a person’s intelligence and grade average in high school so that, if you know a person’s IQ, you can more accurately predict the person’s grade average?
*February 10, 2014*

**INF 103**

Digital literacy is a skill that is important for: utilizing computers effectively. counting numbers reading digits. hacking computer information.
*February 9, 2014*

**Connexus, Civics, History**

Oh so you used to be a teacher?
*February 7, 2014*

**Connexus, Civics, History**

Isnt that what this websites for?
*February 7, 2014*

**Connexus, Civics, History**

Please some answer them for me T_T
*February 7, 2014*

**Connexus, Civics, History**

Help with civics "What are the Rights of the Accused"? 1. The Supreme Court ruled in re Gault that people... A. that are under arrest must be read their rights by law enforcement. B. who cannot afford an attorney must be provided one by the state. C. accused of ...
*February 7, 2014*

**Statistics in Psychology**

Please help. Thank you in advance for your time. In an English class last semester, Foofy earned a 76 (x¯= 85, Sx= 10). Her friend, Bubbles, in a different class, earned a 60 (x¯= 50, Sx = 4). Should Foofy be bragging about how much better she did? Why?
*February 3, 2014*

**Statistics in Psychology**

Please help with this question, THANK YOU in advance. A line should be over the top of both X’s. In an English class last semester, Foofy earned a 76 (X = 85, Sx = 10). Her friend, Bubbles, in a different class, earned a 60 (X=50, Sx = 4). Should Foofy be bragging about ...
*February 3, 2014*

**Statistics in Psychology**

Please help me with both of these questions. THANK YOU in advance for your for you help. 13. For the data, 9 5 10 7 9 10 11 8 12 7 6 9 (a) Compute the z-score for the raw score of 10. (b) Compute the z-score for the raw score of 6. 14. For the data in question 13, find find ...
*February 3, 2014*

**Chemistry**

Write a balanced equation to describe the following reactions: a) C14H30 is cracked to produce ethene, hydrogen and one other compound b) C16H34 is cracked to produce ethene and propene in a 2:1 ratio and only one other compound Thanks:)
*February 1, 2014*

**How to do this problem fast**

8%. Because -> percentage change = new-old/old x 100 so 0.68/8.50 x100 Hope this helps :)
*February 1, 2014*

**math**

If the rectangles width is trippled and its length is doubled the perimeter of the new rectangle is 92 centimeter greater than the original perimeter what is the area of the original rectangle?
*January 30, 2014*

**math**

If the rectangles width is trippled and its length is doubled the perimeter of the new rectangle is 92 centimeter greater than the original perimeter what is the area of the original rectangle?
*January 30, 2014*

**calc and Vectors**

A wire 60 cm long is to be cut into two pieces. One of the pieces will be bent into the shape of a square and the other into the shape of an equilateral triangle. The wire is to be cut in order that the sum of the areas of the square and the triangle is to be a maximum. An ...
*January 22, 2014*

**Calc and Vectors**

The owner of an orange grove estimates that 150 orange trees per acre will each yield on average 800 oranges per year. For each additional tree planted per acre the number of oranges produced by each tree decreases by 10 per year. How many trees should be planted per acre in ...
*January 22, 2014*

**Calculus and vectors**

A cylindrical tank is to have a capacity of 1000 m³. It is to fit into a foundry that is 12 m wide with a height of 11 m. The base of the tank will cost half as much as the top. The metal for the side of the tank will cost four fifths as much as the top. An equation that ...
*January 22, 2014*

**Math**

Fencing costs 29$ per meter what is the cost of fencing a rectangular swimming pool if the fenced area is to be 16 m long 9 m wide.
*January 20, 2014*

**geometry**

what is the algebraic rule for x=4,y=1;x=6,y=1;x=8,y=2;x=10,y=2;x=12,y=3;x=14,y=3;x=16,y=4;x=18,y=4...
*January 8, 2014*

**math**

Sherry is playing the integer game and is given a chance to discard a set of matching cards. Sherry determines that if she discards one set of cards her score will increase by 12. If she discards another set, then her score will decrease by eight. If her matching cards make up...
*December 2, 2013*

**us hist**

c is correct
*November 28, 2013*

**science**

Please help!!!!! 1. A dog is trained to sit and shake hands. These traits are most likely. (1 point) A. inherited B. not inherited C. not acquired D. innate 2. In a particular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a...
*November 22, 2013*

**staistics, is it right?**

Find the mean, the median, and the mode for the following data. 21 21 22 22 22 26 34 Mean 335.1 rounded to 335, median 22, mode is 22 could someone tell me if I got this right?
*November 14, 2013*

**statistics**

Find the mean, the median, and the mode for the following data. 21 21 22 22 22 26 34 Mean 335.1 rounded to 335, median 22, mode is 22
*November 14, 2013*

**statistics**

I have to find mean, median and mode did I do this right? 21,21,22,22,22,26,34
*November 14, 2013*

**math geometry**

how can i prove in geometry proofs that something is a midpoint of a line? thanks
*November 12, 2013*

**english**

not sure but prepositional phrase with a gerund?
*November 4, 2013*

**english**

__present participial phrase __nominative absolute __appositive __past participial phrase __prepositional phrase with a gerund
*November 4, 2013*

**english**

By serving as a popcorn vendor sorry
*November 4, 2013*

**english**

What grammatical structure is the italicized portion of the sentence? By serving as a popcorn vendor, Don saw many good games. appositive?
*November 4, 2013*

**English**

Select the correct noun clause in the sentence below. Then choose the function of the noun clause. The detective asked me if I had heard any strange noises the night before. Noun clause: if I had heard any strange noises the night before. function of clause: direct object
*November 4, 2013*

**English**

Thank you once again.
*November 4, 2013*

**English**

Which of the following sentences does not have a subordinate adjective clause? ___The poem, which Peg wrote for me, was good enough to print. _x_He made some statements, and they had no foundation of fact. ___Gerry won a swimming pool trophy of which he is very proud.
*November 4, 2013*

**English**

What is a subordinate clause?
*November 4, 2013*

**English**

Thanks again. (:
*November 4, 2013*

**English**

1.adjective 4.adjective 5.noun ?
*November 4, 2013*

**English**

Choose the function of the italicized infinitive phrase. 1.May I have permission to use the car tonight? 2.He went to Europe to study architecture. 3.I want to go with you to the store. 4.Can you give me a place to put my things? 5.To help you is my greatest desire. 6.Meredith...
*November 4, 2013*

**English**

thank you!!!!
*November 4, 2013*

**English**

So 5. Subject? 6.Predicate noun?
*November 4, 2013*

**English**

What is the gerund phrase and noun function of the gerund in these sentences: 1.Brett earns his income by repairing cars. 2.I enjoy playing the piano. 3.Her favorite pastime is entertaining friends. 4.She is successful in mimicking others' voices. 5.He must like studying ...
*November 4, 2013*

**3rd grade Math**

If Beth has 28 feet of trim to use as edging on a rectangular blanket, what is the length and width of two blanket sizes she could make?
*November 4, 2013*

**science**

Need help with those same questions.. please help!!
*October 25, 2013*

**english**

An occurrence at Owl Creek bridge compare and contrast to After Twenty Years
*August 31, 2013*

**biology**

Explain how new species can originate without geographical barriers.
*August 1, 2013*

**Calculus**

Find the volume of the solid obtained by rotating the region under the graph of the function f(x) = (2)/(x+1) about the x-axis over the interval [0,3]
*July 9, 2013*

**Calculus **

Find the area of the shaded region bounded by y=7x and y=x(sqrt(22^2-x^2))
*July 9, 2013*

**Chemistry**

Carbon tetrachloride has an enthalpy of vaporization of 29.82kj/mol. If CCl4 has a normal boiling point of 350k, what is its vapor pressure at 273k? (R=8.31 J/molK)
*July 1, 2013*

**Chemistry**

What is the vapor pressure of CH4 at 1 atm and 298k?
*June 29, 2013*

**chemistry**

What is the vapor pressure of helium at 1 atm and 298 k?
*June 29, 2013*

**math**

find the critical points of h(t) = (t^2-4)^(1/3)
*June 25, 2013*

**math**

calculate the general antiderivative of f(x) = -19x^4 - 15x^3 + (20/x)
*June 25, 2013*

**Math**

limit as x approaches 9 of (8/(sqrt(x)-3)) - (48)(x-9)
*June 25, 2013*

**chemistry**

A 8.90-L container holds a mixture of two gases at 45 C. The partial pressures of gas A and gas B, respectively, are .294 atm and .860 atm. If .100 mol of a third gas is added with no change in volume or temperature, what will the total pressure become?
*June 21, 2013*

**chemistry**

if the partial pressure of the diatomic gas is .300 atm, what is the total pressure? 6 blue dots 5 orange dots 3 green dots consisting of 2 dots each (diatomic gas)
*June 21, 2013*

**chemistry**

O2 effuses at a rate that is _____ times that of Xe under the same conditions. rate 02/rate x2 = ?
*June 21, 2013*

**chemistry**

delta h= -5113.3
*June 19, 2013*

**chemistry**

for a particular isomer C8H18, the following reaction produces 5113.3 kj of heat per mole of C8H18 consumed under standard conditions c8h18(g) + 25/2 O2 (g) ---> 8co2(g) + 9h2o(g) what is the standard enthalpy of formation of this isomer of c8h18? o2= 0 co2(g)= -393.5 h2o(g...
*June 19, 2013*

**Chemistry**

Which of the following substances have a standard heat of formation of zero? O2 at 25.O degrees C and 1 atm Fe at 1200 degrees C C2H6 at standard conditions Cl2 at 2 atm
*June 19, 2013*

**Business Math**

March 31-21 (Date of note)=10 days remaining. Take the 60 days-10 (days remaining in march)=50-30 (days in April)=20 days So, the maturity date of the note is May 20th.
*June 19, 2013*

**Math**

I=PRT I=40,000*.14*25/360=$388.89 (interest) $15,000-388.89=$14,611.11 (amt. of partial payment left to reduce the principal) 40,000-14,611.11=$25,388.89 (adjusted principal balance) $25,388.89*.14*20/360=197.47 10,000-197.47=9802.53 25,388.89-9802.53=15,586.36 15,586.36*.14*...
*June 19, 2013*

**chemistry**

For the following reaction in acidic solution. Cr2O7^2- + I- ---> Cr^3+ + IO3- Give the total balanced net ionic equation.
*June 17, 2013*

**chemistry**

For the following reaction in acidic solution. Cr2O7^2- + I- ---> Cr^3+ + IO3- give the balanced half reduction reaction. Indicate the oxidizing species.
*June 17, 2013*

**chemistry**

Sorry the equation is: Cr2O7^2- + I- ---> Cr^3+ + IO3^- (dont sure the balanced equation)
*June 17, 2013*

**chemistry**

0.125g of sodium dichromate is to be reacted wtih 0.025M potassium iodide. How many mLs of the potassium iodide solution will be needed. (Use your balanced equations above.)
*June 17, 2013*

**chemistry**

Using your 0.0100M oxalate solution and only the equipment and supplies listed below, describe how to prepare a 0.00025M solution of oxalate. Note, you are not allowed to add volumes with pipettes. (example, if you want 20mLs, you can not use a 10mL + 10mL addition as this ...
*June 17, 2013*