Friday

April 18, 2014

April 18, 2014

Total # Posts: 1,305

**Physics**

How much heat must be removed from 500 grams of water at 0 degrees C to form ice at 0 degrees c?

**math/calc**

gotta find the first and second derivative of f(x)=x^2/(x-1) thanks for help!

**Grammar**

Thank you so much

**Grammar**

Which of the following combines the sentences below by coordinating? Senate pages may be between fourteen and seventeen years old. Pages in the House must be high school juniors or seniors. A.Senate pages may be between fourteen and seventeen years old, while pages in the Hous...

**English-Grammar**

Thanks :)

**English-Grammar**

That makes the answer B, then?

**English-Grammar**

Identify the word or words the best describes the underlined(in parentheses) word for the question (Comparing the two essays), it is obvious that one relied on more thorough research. A.prepositional phrase B.participial phrase C.gerund phrase D.infinitive phrase I think the a...

**Math**

A town has population 225 people at year t=0. Write a formula for the population, P, in year t. a) grows by 10% per year I don't understand how to do this, and keep getting the wrong answer. Also, Find a formula for the linear function q(x) whose graph intersects the graph...

**CIS 210**

AAAAhhhh...this is due today!!!

**Psychology**

The answer was A, oh, well....

**Psychology **

The impact of drug x on fertility rates in young women A.Potentially rendering young women unable to have children B.Potential birth defects if the women should become pregnant during the study C.Exposing young women to an untested drug D.There is no ethical dilemma I'm th...

**English-Grammar**

Thanks :)

**English-Grammar**

Yeah, it doesn't make sense for people to be imported. So the answer is C, then?

**English-Grammar**

please help. I think the answer is either B or C

**English-Grammar **

Which of the following sentences does NOT contain a dangling modifier? A.Torn from its moorings, the high wind drove the boat onto the rocks. B.Imported in the last century, the people on Easter Island outnumber the horses. C.The Stanleys moved into the house, although it was...

**Chemistry**

3.68kj of energy are released per ml so it is actually 3.68kj/ml you need to cancel out the ml by multiplying to get the heat lost by ice water for this specific amount of ice water

**English Literature**

What is ironic about the rioters' wish to kill Death? A.Death is the one who seeks people to kill. B.The rioters should be concerned about each other's greed. C.The rioters believe they can be successful. D. Death and the rioters are thieves. I think the answer is eit...

**7th grade social studies help quick please**

you will get banned from your school if they know this is you but thanks for the answersssssss

**Math (kindergarten)**

start on the right. 8+1=9 move to the left side. 1+2= 3. the solution to this problem is 39

**Physics**

K = 1/2 * m * v^2 Convert km/h to m/s, and solve for K

**precalc **

I am stuck on this one problem and think it might be the teachers typo but don't want to point it out without being sure. You have to find the zeros (we use long division) of x^5+8x^3+16x but because these are all raised to odd powers they either give me negative or positi...

**Physics**

where did you get the numbers .23 and -1.167 from?

**precalc**

f(x)=2+4x-x^2 when x is less than 2 thus f-1(x)=2-sqrt(-x+6) i need to show that f(f-1(x))=x, but i keep getting negative x...any help

**anatomy**

do you think there is a difference in the absolute force generated by males and females? I think the answer is yes just by the common knowledge that males are typically stronger than women. But, I'm not sure how to scientifically explain why a man's muscles are able to...

**physics**

t = 1.8 x = 36 meters y = -3.75 meters Vox = x/t = 36/1.8 Vox = 20 m/s Vox = VocosƟ 20 = VocosƟ Vo = 20/cosƟ Voy = Vo + at y = Voyt + 0.5at2 = -VosinƟ -4.9t2 -3.75 = (20/cosƟ)sinƟt -4.9t2 <----plug in t = 1.8 -3.75 = (20)(2)tanƟ - (4.9)(3....

**social study**

It should be : warmer than at either Z or U (if X is located on the center of the globe {equator} then it should be warmer than Z and U)

**chem**

have 0.0114 mole of Cu(OH)2 (s) a gelatinous precipitate. After heating, and converting all of it to CuO(s) wash the solid as a means of purifying it. How much (in g) should you have of CuO at this point? do you just convert 0.0114 moles cu(OH)2 to grams and then thats the ans...

**math**

The combined capacity of a bottle and a glass is equal to the capacity of a pitcher. The capacity of a bottle is equal to the combined capacity of a glass and a mug. The combined capacity of three mugs is equal to the combined capacity of two pitchers. How many glasses altoget...

**math**

An empty truck weighs 2000 kg. After the truck was loaded, freight made up 80% of the weight of the loaded truck. At the first stop one fourth of the freight was unloaded. What percent of the loaded truck's weight did the load make up after that? (Hint: freight = load.) A)...

**math**

In how many ways can you express the number 2003 as a sum of two prime numbers? A) 1 B) 2 C) 3 D) 4

**Physics**

3. s=m and m^3/m is m^2. the square root will be m.

**Physics**

The leg and cast in Figure P4.18 weigh 290 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w2 weighs 125 N. Determine the weight w1 and the angle α needed in order that there be no force exerted on the hip joint by the leg plus...

**world history **

The popularity of an individual Hindu deity was largely a reflection of a) its ranking by the Hundred Schools of Thought. b) the approval it received from Siddhartha Gautama. c) its pre-Aryan origin. d) the size of its pyramids. I think it's A but I'm not positive.

**AP world history**

bro, i know what you're going through keep strong and CTRL+F

**math**

sovle the following equation 8/x-1=9/(x)(x+2) i know the answer is -1,7 but how?

**Math**

I solved the equation below and got an answer of 9+-sqrt(57) but i don;t belive this is correct. help please. 5-sqrt(8x+1)=x 8x+1=x^2-10x+25 0=x^2-10x+25-8x-1 0=x^2-18x+24 then i completed the sqare got 9+-sqrt(57) THANKS SO MUCH

**Math**

A baseball is thrown upward from ground level with an initial velocity of 48 feet per second, and its height h in feet is given by , where t is the time in seconds. At what time does the ball reach 10 feet? Round to the nearest tenth. Step by step please

**Calculus**

1. Find an ordered pair that represents 6 vector v - 5 vector w if vector v =(9,5) and vector w = (6,9). 2. Find an ordered triple that represents 6 vector y + 4 vector z if vector y = (2,6,8) and vector z = (7,-2,6) 3. Find the magnitude of vector WX for W(3, –3, 1) and ...

**English Poetry Check**

I expect you to help? this is a homework help site is it not? excuse me for not getting them right? Itd be nice to get help and to be told as to why the answers are wrong.

**English Poetry Check**

that is rude and not very helpful..

**English Poetry Check**

3. What is the rhyme scheme of the following Anne Bradstreet poem? To Her Father with Some Verses Most truly honored, and as truly dear, If worth in me or ought I do appear, Who can of right better demand the same Than may your worthy self from whom it came? The principal migh...

**algebra 1**

(1/13)* 42= 42/13= 3.23

**Biology**

1. Which of the following is the definition of ecology? the social movement with a goal to protect the environment the recycling of human-made materials to reduce waste going into landfills the study of interactions among organisms and between organisms and their environment t...

**Civics**

Ok gotcha!Haha that makes sense. Thanks! =)

**Civics**

Isn't there a term that for when you find people with college degrees working at a fast-food franchise?

**English**

Awesome! Thanks once again Ms. Sue.

**English**

My teacher says to discuss the style of an article we've chosen by noticing diction, tone, metaphorical language, organization, us of anecdote. Could someone give me an example of those 5 things? I'm a bit confused.

**Finance**

philippine peso

**Finance**

Joseph invested 3/4 of his lottery winnings to a corporate bond which gives a simple 8% interest after 1 year, and the rest he invests in another company which gives a 4% interest in 1 year. If the total investment is php700,000; how much is Joseph's lottery winnings?

**chemistry**

A volume of 100mL of 1.00 M HCl solution is titrated with 1.00 M NaOH solution. You added the following quantities of 1.00 M NaOH to the reaction flask. Classify the following conditions based on whether they are before the equivalence point, at the equivalence point, or after...

**chemistry**

How many moles of HNO3 are present if 0.236mol of Ba(OH)2 was needed to neutralize the acid solution?

**math**

What percentage interest rate is a loan that charges one hundred dollars in simple annual interest over 5 years on a one thousand dollar balance?

**Program logic design**

cerritos.edu/pnguyen/cis103/labs/cis103home5sol.htm

**accounting**

The following information was made available from the income statement and balance sheet of Lauren Company. Item 12/31/10 12/31/09 Accounts Receivable $53,400 58,600 Accounts Payable 35,600 32,700 Merchandise Inventory 85,000 79,000 Sales (2010) 243,000 Interest Revenue (2010)...

**Chemistry**

thank you i figured it out right before you posted this :)

**Chemistry**

nevermind, got it!

**Chemistry**

0.000341 g fluorescein (332.32 g/mol) is dissolved in 255 mL solution of ethanol. The density of ethanol is 0.785 g/mL. What is the concentration of the solution in molarity (M)?

**Math**

((25/a)- a)/ (5 + a) I know the answer comes to (5-a)/a but I can't figure out how to simplify it to this. I've gotten close but I'm not sure. Its probably easier than I'm making it out to be.

**computer science**

Can you help me break this into two clases, and Employee class and the default program class? I have to include a mutator and accessor method and provide properties for the instance variables. namespace commission { class Program { static void Main(string[] args) { decimal com...

**science**

Which of the following is TRUE? A It was recently discovered that the pituitary gland does not actually do anything. B The hypothalamus is responsible for controlling the activity of the pituitary gland. C The pituitary gland controls the hypothalamus, which in turn controls ...

**psychology**

Write a paper that describes the character’s personality in terms of the Big Five personality traits.

**german**

1. Fill in the correct comparative form: Fußball ist ______ Golf. (interessant) A mehr interessanter als B interessanter als C mehr interessant als D interessant als is it C? 3. Fill in the correct comparative form: Der Film ist ______ das Buch. (schlecht) A mehr schlech...

**german**

Fill in the correct comparative form: Surfen ist ______ Jagen. (gut) A besser als B mehr gut als C schlechter als D mehr besser als is it A?

**Statistics**

Not a t-Test. Is a Linear Regression to test for a relationship between PC ownership and Computer Anxiety

**accounting please help!**

I have most of them done but would like to have these ones double checked... Please Help!!! 2. The balance sheet format that lists assets above liabilities is the _______ form. A. alphabetical B. liquidity C. account D. report I said B 13. Nick Company reports the following in...

**Physics**

A 5000 kg cart carrying a vertical rocket launcher moves to the right at a constant speed of 27.0 m/s along a horizontal track. It launches a 54.8 kg- rocket vertically upward with an initial speed of 33.1 m/s relative to the cart. A) where will the rocket land, relatively to ...

**Biology **

The release of eggs and sperm near each other into the water occurs during A spawning. B development. C growth. D all of the above. Is it A?

**physics**

A blue minivan weighing 20,000 Newtons and traveling east at 100 km/hr on a familiar turnpike approaches the toll booth. What is the kinetic energy (in joules) of the minivan just before the brakes are applied? Assume g = 10 m/s/s.

**Chemistry**

what are the half reactions for a) Cr(NO3)2 b) Pb(NO3)2 I know that Cr and Pb are: Cr^2+ +2e- -> Cr Pb^2+ +2e- -> Pb I just don't know how to do the half reaction for (NO3)2

**math**

93.75% are yellow

**Business HELP!!!**

This is a 100 question hw sheet and I have answered all but i am unsure about a few please help!!! 8. Which of the following statements about when the Fed increases the reserve requirement is correct? A. Interest rates go down. B. Banks have more money to lend. C. Inflation te...

**geometry**

712ft2(Squared)

**Business **

This is a 100 question hw sheet and I have answered all but i am unsure about a few please help!!! 8. Which of the following statements about when the Fed increases the reserve requirement is correct? A. Interest rates go down. B. Banks have more money to lend. C. Inflation te...

**Business Accounting**

This is a 100 question hw sheet and I have answered all but i am unsure about a few please help!!! 8. Which of the following statements about when the Fed increases the reserve requirement is correct? A. Interest rates go down. B. Banks have more money to lend. C. Inflation te...

**Business **

The contrarian approach to investing is best illustrated by A. staying out of the market no matter what experts are saying. B. always buying when others are selling. C. investing in mutual funds, contradicting the idea that investing in individual stocks is better. D. investin...

**Business Accounting**

Which of the following statements about the money invested in a traditional IRA account is correct? A. It isn’t taxed until it’s withdrawn. B. It’s subject to double taxation. C. It’s taxed as you make deposits. D. It isn’t taxed.

**Literature**

Who did Hans Christian Andersen dedicated The Little Mermaid to?

**math**

this question is vague, which system are you using? The numbers do vary. Also do want to convert a ton to Kg?

**Math**

because the [ (79degrees/360 degrees) x pi x 6^2 ] would be the measure of that section of the circle. the area of the whole circle would be pi x r^2 but since you're only solving for that section it would be 79/360 times that whole area of the circle to solve for that sec...

**Math**

were you allowed to use a graphing calculator? because if you were, you would be able to find the HA by looking at the graph

**geometry**

Find the areas of both the wall and the door and subtract the two 8 x 20 = 160 to find the width of the wall: 4+ 8+ 8= 20 Area of the wall: 25 x 20 = 500 Area to be painted: 500-160 = 340 ft^2

**MATH**

(7/8)-(3/4)= x ----equation (3/4) = (6/8) (7/8)- (6/8) = (1/8)

**Chemistry**

thank you!

**Chemistry**

Consider an amphoteric hydroxide, M(OH)2(s), where M is a generic metal. M(OH)2 (s) <--> M^2+ (aq) + 2OH- (aq) Ksp=4e-16 M(OH)2 (s) + 2OH- (aq) <--> M(OH)4 ^2- (aq) Kf=0.06 Estimate the solubility of M(OH)2 in a solution buffered at pH= 7.0, 10.0, and 14.0 I'm ...

**Chemistry help!!!**

The class will react 50.00 mL samples of .200 mol/L potassium phosphate with an excess of 0.120 mol/L lead II nitrate solution. what is the minimum volume of lead II nitrate solution required? What volume of lead II nitrate solution should the instructor tell the students to u...

**chemistry**

Calculate the pH of the resulting solution if 30.0 mL of 0.300 M HCl(aq) is added to (a) 35.0 mL of 0.300 M NaOH(aq). (b) 40.0 mL of 0.350 M NaOH(aq).

**Chemistry**

Which of the following solution should be mixed with 50.0 mL of 0.050 M HF solution to make an effective buffer? A) 50.0 mL of 0.10 M NaOH B) 25.0 mL of 0.10 M NaOH C) 50.0 mL of 0.050 M NaOH D) 25.0 mL of 0.050 M NaOH

**calculus**

if the solutions of f(x)=0 are -1 and 2, then the solutions of f(x/2) = 0 are

**algebra**

set denominator equal to 0 and solve for x which would make the equation undefined v^2-4v-32=0 (v-8)(v+4)=0 v=8, v=-4 x is not equal to 8 or -4

**Intermediate Algebra**

=sqrt(24)x i = 2sqrt(6)i

**PreAlgebra**

$20

**Intermediate Algebra**

[(7a-b)(7a+b)]/(7a-b) =7a+b

**math**

break them down into shapes that you know how to work with like squares and rectangles.

**Science**

It should be 0.25. I don't really know how to get that from the equation (Amplitude=distance/frequency), but since the problem said that "the crests of the waves are about .5 meters above the troughs." I divided that by two.

**Genetics**

A certain form of albinism in humans is recessive and autosomal. Assume that 1% of the individuals in a given population are albino. Assuming that the population is in Hardy-Weinberg equilibrium, what percentage of the individuals in this population is expected to be heterozyg...

**Genetics**

The difference between fitness of a given genotype and another genotype considered optimal is called the selection coefficient (s). What is the selection coefficient for a genotype (aa) that produces an average of 99 offspring when Aa individuals produce an average of 100 offs...

**Chemistry**

But how did you get the (Cl^-)?

**Genetics**

A certain form of albinism in humans is recessive and autosomal. Assume that 1% of the individuals in a given population are albino. Assuming that the population is in Hardy-Weinberg equilibrium, what percentage of the individuals in this population is expected to be heterozyg...

**Genetics**

The difference between fitness of a given genotype and another genotype considered optimal is called the selection coefficient (s). What is the selection coefficient for a genotype (aa) that produces an average of 99 offspring when Aa individuals produce an average of 100 offs...

**Geometry**

The area of a square garden is 242m squared. How long is the diagonal?

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