Wednesday

April 16, 2014

April 16, 2014

Total # Posts: 858

**Maths**

Differentiate: y = In ( (x+3) / (x^2) )

**Science HELP!**

If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the balloon?

**french**

The le/la has to come after the conjugated verb and before the verb in the infinitive eg. 1) Je veux le voir If there is one verb then it goes between the pronoun and the verb (which u have done)

**Physics**

If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the balloon?

**precal**

find all values of x such that sin(sin(x))=1

**12th grade**

thats wrong bob it doesn't work.

**physics 11**

A 80KG hockey player has a coefficient of friction u=0.08 between her skates and ice. What is the force of friction on the player? 0.08(80 x 9.8) =62.7N If the hockey player is coasting, what is the net force?

**calculus**

find dq/dp.q=(5p^2+2p)-3/2 use impliict differentiation to find dq/dp

**Science**

WhT'S THE ANSWER?

**Chemistry**

Rank the following Bronsted acids from strongest to weakest: H-SH H-CH3 H-NH2 H-F H-I

**Physics**

the answer is shake your money maker

**Physics**

A long jumper leaves the ground at an angle of 20 degrees and travels a horizontal distanceof 7.0m before landing. What is the takeoff speed of the jumper? To be honest I really don't know how to solve it. A step-by-step explantion would be helpful.

**Calculus**

I don't understand this question. Q. In the theory of relativity, the mass of a particle with velocity "v" is m = mo/√(1-v2/c2) where mo is the mass of the particle at rest and "c" is the speed of light. What happends as v-->c-? Thank You!

**physics**

___ _ _ _ ____ | | |\/| |___ ... | | | | |___ ,' '. ___ ____ ; ; | | | | | | |__| | | _ _ _ ____ ____ _ _ | _, ,_ | | | | | | |__/ |_/ '´ | | `' |_|_| |__| | \ | \_ | | _ _ | | .|_|_,' | ,--. | | | | : | | | `|`'`-._| : | | | | | : | | | | | : | ...

**Physics**

Thanks!

**Physics**

In moving a 35.0 kg desk from one side of a classroom to the other, a professor finds that a horizontal force of 300 N is necessary to set the desk in motion, and a force of 185 N is necessary to keep it in motion at a constant speed. (a) What is the coefficient of static fric...

**calculus**

What analytic method steps are required to find the limit of cos x-1/2x^2 ? Limit greater than 0. Estimating -0.25 but stalled ....

**calculus**

What analytic method steps are required to find the limit of cos x-1/2x^2 ? Limit greater than 0. Estimating -0.25 but stalled ....

**algebra**

Solve algebraically and check x^2 + 4y^2 = 4 x = 2y - 2

**Physics (Circular Motion!!)**

Thank you for trying to help, but that is what i've been getting and my homework website tells me it is wrong. But now its two on one so i'm starting to think that the website is wrong

**Physics (Circular Motion!!)**

Astronauts use a centrifuge to simulate the acceleration of a rocket launch. The centrifuge takes 30.0 s to speed up from rest to its top speed of 1 rotation every 1.10 s. the astronaut is strapped into a seat 7.40 m from the axis. A) What is the astronaut's tangential acc...

**Physics**

Help! I've been trying to understand this question for quite some time now and every attempt i make at it i get the wrong answer. maybe i'm just pluging the numbers into the equations wrong, but i always get the wrong answers. if someone can just breakdown the steps fo...

**math**

I feel i may have stepped on some toes. I am sorry for that. I am not the most intelligent person in the world and I sincerly appoligize.

**math**

the best way to go about this question is trial and error. if he worked 7 hours and made 39.50, then if he works 3 hours painting the fence, and 4 hours mowing the grass then he makes 39.50. i'm sure you can make equations for it but it's much quicker and easier to go ...

**Social Studies**

10. The principle of self-government emphasizes majority rule whereas the principle of liberty emphasizes individual rights. These principles a. are universal and are the foundation of all legitimate governments. b. have no real meaning in practice. c. have the same meaning fo...

**Math word problems**

To determine the number of deer in a game preserve, a conservationist catches 428 deer, tags them and lets them loose. Later 644 deer are caught.161 of them are tagged. How many deer are in the preserve?

**Math**

3/w+1 + 2/3w= ? would the answer be 5/4w+1

**chemistry**

you are right....I wrote it wrong. Does this mean that the solution will be more toward the redish side?

**chemistry**

you are right....I wrote it wrong. Does this mean that the solution will be more toward the redish side?

**chemistry**

in my text book it says that if the calculated value is less than or equal to 0.1 then the color of the conjugate base (In- in this case) predominates. does this mean that the solution will be yellow then?

**chemistry**

The initial state of a reaction is A2 +B2 –> 2AB. In the initial state of the reaction there are 6 A2’s present and 6 B2’s present. Suppose the reaction is carried out at two temperatures.Which of these situations represents the result at the higher temperatu...

**chemistry**

in my text book it says that if the calculated value is less than or equal to 0.1 then the color of the conjugate base (In- in this case) predominates. does this mean that the solution will be yellow then?

**chemistry**

Is it because it is more acidic?

**chemistry**

would it be orange?

**chemistry**

The ionization constant Ka of an indicator HIn is 1.0x10^-6. The color of the nonionized form is red and that of the ionized form is yellow. What is the color of this indicator in a solution whose pH is 4.00? Thanks!

**chemistry**

Thank You!

**chemistry**

Which of the following has the greatest buffer capacity? There are three separate problems below. 1. 0.40 M CH3COONa / 0.20 M CH3COOH 2. 0.40 M CH3COONa / 0.60 M CH3COOH 3. 0.30 M CH3COONa / 0.60 M CH3COOH Thanks!

**chemistry (WEBWORK)**

a. vi,v b.iii c.iv d.ii e.i

**Physics**

This is WRONG. Did not multiply the 2pi by 3. You just did 2pi

**marketing**

• The goal of integrated marketing communication (IMC) is to produce a unified promotional message that has the customer as its focus. All promotional activity, such Draft a 200- to 300-word response answering the following questions: o How does an organization establish ...

**Calculus**

Calculus Limit Problem: Evaluate the function at the given numbers (correct to six decimal places). Use the results to guess the value of the limit, or explain why it does not exist. f(x)=cosx-1/sinx x=1, .5, .4, .3, .2, .1, .05, .01 What should I do? A table of values??

**marketing**

Select a product or service you would like to introduce to the marketplace. It may be from an existing company or a new concept. Prepare a 1,750- to 2,100-word marketing plan for your selected product or service. Include the following elements: A brief description of the produ...

**math**

how many 2x2 tiles to fill a room 85 x18?

**chemistry**

3. What is the ka for a solution of choloracetic acid (C2H5ClO2) which has a pH of 1.52 in a 0.112M solution? Please reply me as soon as possible sir Thank you George.

**college**

Writing errors, such as those identified in the readings for this week, may influence the way a reader interprets your writing. A résumé that is marred by grammatical errors, for example, may prevent a job candidate from progressing to the interview stage. Do you...

**CHEMISTRRY**

what is the molarity of an H2SO4 solution if 49.0 ml is completely titrated by 68.4ml of an NaOH solution whose concentration is 0.333 M?

**Math**

Find the simple interest. Round your answer to the nearest cent. Principal = $900 Rate = 4% Time in years = 3

**Algebra 1 **

how to slove this question (a-8)(a-9)

**math**

what is the answer for (h+3)(h+4)

**language**

but black + ness = blackness sorry i dont get please explan it to me

**language**

so is it (B)

**language**

what is a compound? the queston is which word is a compound word? A)blackbrid B)blackness C)blacker

**language**

thanks

**language**

what is a homonym? the queston is? what is a homonym for missed? A)must B)mist C)most

**language**

what is a suffix? and what is prefix? the queston is " which word has a suffix but no prefix A)uncomfortable B)comfortably C)discomfort thanks for your time.

**lag**

no i mean (A) idiom and c

**lag**

what is a idiom? the queston is this "which sentence uses an idiom?" A)gustavo said we should go to the party. B)gustavo said we should go for it. C)gustavo said we might go with him.

**Statistics**

In a survey of 1037 adults, ages 65 and over, 643 were concerned about getting the flu. a) Find the point estimate for the population proportion , p , of those concerned about getting the flu. b) Construct a 90% Confidence Interval for the population proportion. c) How big a s...

**Statistics**

A medical research team studied the number of head and neck injuries sustained by hockey players. Of the 200 players who wore a full-faced shield, 40 sustained an injury. Of the 250 players who wore a half-faced shield, 60 sustained an injury. At á = 0.05, can you rejec...

**Statistics**

A maker of microwave ovens advertises that no more than 10% of its microwaves need repair during the first 5 years of use. In a random sample of 57 microwaves that are 5 years old, 13% needed repairs. At á=0.01, can you reject the maker’s claim that no more than 10...

**statistics**

An auto maker estimates that the mean gas mileage of its sport utility vehicle is 20 miles per gallon. A random sample of 8 such vehicles had a mean of 18 per gallon and a standard deviation of 5 miles per gallon. At á=0.05, can you reject the auto maker’s claim th...

**Algebra**

98. -49 = x - 50 add 50 to both sides x = 1 94. no (vertical line is not a function) 92. yes (horizontal line is a function) 89. (6/7)x - 6 = -2 add 6 to both sides = (6/7)x = 4 multiply both sides by (7/6) = x = 28/6 86. a. horizontal the y values are the same, so when they a...

**math**

81 hours

**college chemistry**

. One possible use for the cooking fat left over after making french fries is to burn it as fuel. Formula (for cooking fat) = C51H88O6 Density = 0.94 g/ml ΔH°f = - 1310 kJ/mol. Write a balanced equation of the combustion of cooking fat (the products are CO2 (g) and H2...

**what is....**

ms.sue i am just wondering are you from tn because you seem to know a lot about tcap btw thank you everybody for volunteering to help people who need help:)

**what is....**

well i am in the 3rd grade and i am going to take a test called TCAP the problem is is that i don't know anything about it and my questions are -what is it's purpose -what if i fail would they put it in my file -what do they do if i pass it

**Paragraph **

sorry i should had been more specific i didnt get it so thats is why i asked again

**Paragraph **

Paragraph Imagine you are an elected official with the responsibility of drafting legislation designed to protect our environment. What items will you include in your bill? Who will be responsible for the bill's implementation? Its enforcement

**Geography**

thanks

**Geography**

OK thanks but you think I'm completely right

**Geography**

umm 1,2,3

**Geography**

1,2,3 or may be 1.2.4 right

**Geography**

Select all of the answers that apply. A map _____. 1)is a representation of the earth's surface 2)is a portable document describing an area 3)can provide data such as migration trends, directions, and rock composition 4)provides all of the information about a location

**earth science**

i think its one and fore

**earth science**

Select all of the answers that apply. Some rules to remember when reading topographic maps are _____. 1)the elevations of contour lines must always be whole number multiples of the contour interval. 2)the thin line separating two different rock units is a contact line 3)points...

**English **

sorry its true

**English **

A collective noun is plural when the group acts as a unit (i.e., "The team lost their fourth game in a row."). A)true B)false i put false

**English**

"We give this award to Dexter, without whom we never would have found Mike's shoes." demonstrates correct use of whom. A)true B)false i put true

**English**

Pronouns used as subjects or subject complements are in the nominative case A)True B)False i put false

**English**

Identify the word in bold type. Do you know someone who can fix a lamp? A)demonstrative pronoun B)indefinite pronoun C)interrogative pronoun D)relative pronoun E)not a pronoun

**English**

They left the oven on; consequently, the roast was burnt beyond recognition. A)conjunctive adverb B)coordinating conjunction C)correlative conjunction D)subordinating conjunction

**English **

thank you

**English **

Identify the word in bold type. None of those bagels look fresh. A)demonstrative pronoun B)indefinite pronoun C)interrogative pronoun D)relative pronoun E)not a pronoun (B)

**English **

thanks

**English **

so its he right

**math**

which of these equations represents that 5 less then 10 a number is 15? A)10n - 5 = 15 B)5n - 10 = 15 C)(5-10)n = 15 D 5- (10 + n) = 15 i think its (C)

**math**

which of these statements about prime and composite numbers is true? F)all prime numbers are odd. G)all prime numbers have three factors. H)all composite numbers are divisible by two. J)all composite numbers have more then two factors i thinks it (J) but im not sure

**math**

what is 11/3 round to nearest whole number? F)1 G)3 H)4 J)11 i got 3 2/3 so what would that be (G)

**math**

Andrew worked from 9:45 am to 3:40 pm on Saturday.how long did he work on Saturday? A)5 hours 50 minutes B)5 hours 55 minutes C)6 hours 5 minutes D)6 hours 55 minutes i got 6 hours 35 minutes what did i do wrong

**math**

what is 11/3 round to nearest whole number? F)1 G)3 H)4 J)11 i got 3 2/3 so what would that be (G)

**economic**

hey i have the same questions too. did any of u get number 4 or 5

**sociolinguistic**

What is the languages used in indonesia? and what is the history of it?

**language expression**

choose the sentence that is complete and that is written correct. 11) A)annabel are planning to walk at least seven miles every week B)i am walking on the sidewalk when i have heard someone say my name. C)as soon as we see brent walking around the conor,we were yelling. D)as i...

**language expression**

ok sorry will do next time

**language expression**

what about 12-J 13-A 15-D 17-A

**language expression**

choose the sentence that is complete and that is written correct. 11) A)annabel are planning to walk at least seven miles every week B)i am walking on the sidewalk when i have heard someone say my name. C)as soon as we see brent walking around the conor,we were yelling. D)as i...

**language expression**

ok thanks

**language expression**

choose the word or phrase that best completes the sentence.my answers are all at the bottom 6)by now,the relay team _____ their practice laps. F)swam G)swum H)has swum J)was swimming 7)the director ______ a speech when the guest of honor arrived A)giving B)is giving C)has give...

**language expression**

thank you for your time

**language expression**

choose the word or phrase that best completes the sentence.my answers are all at the bottom 1)Vito ______ river rafting next week. A)had gone B)is going C)has been going D)will have been gone 2)there_____many bicycles for sale in this shop. F)is G)are H)was J)has been 3)a vict...

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