william

This page lists questions and answers that were posted by visitors named william.

Questions

The following questions were asked by visitors named william.

how do you factor the polynomial 3x^4-4x^3+4x^2-4x+1? i got (x-1)(3x-1)(3x^2+3) but the answer is (x-1)(3x-1)(x+i)(x-i)

I need help solving this question. "Two charges are 10 meters apart. The charge on the positive particle is 1.0 C and the negative charge is 10 Coulombs. Calculate the magnitude of the electrostatic force of attraction between these two charges."

i got to write an essay about my history. Like, origin/culture, heritage etc...But I don't know that much about my origin/culture, heritage, so anyone want to help me?

Write the oxidation and reduction half-reactions of a corroding galvanized nail exposed to rain. The question says "galvanized" so its zinc. Zn(s) -> Zn2+(aq) + 2e- potential: +0.76V rain is slightly acidic, so i thought it would be O2(g) + 4H+ + 4e- -> 2...

Using the data below, suggest a proportionality statement. Length (cm) Frequency (Hz) 100 0.46 80 0.52 60 0.62 40 0.74 20 1.01 I think it's f ¡Ø 1/¡Ìlength (one over square root of length) or is it l ¡Ø 1/f^2 By the way, the length is the controlled varia...

Is there a salt bridge in a fuel cell? I think there isn't one because hydroxide ions and hydrogen ions are in the water, so they can move around freely already.

say A -> B + 5kJ would reactants have more enthalpy or products have more enthalpy? I think first, the delta H would be negative. So H final must be less than H initial. So reactants have more enthalpy?

What are the advantages of a gas as a coolant? (instead of heavy/normal water) (in a fission reactor)

What are some applications of Nuclear Chemistry in Medicine? So far I've found - X-rays - Radioactive tracers - Gamma radiation can be used to treat cancer and other diseases

i have a list of riddles i need solved pls ...help me ... 1183,7, 50, 256 seek out the one who say, the pleasure gets better at 37 , discovered in a restaurant , name his play

more riddles ..help... said to be solid as a rock, a joy to hold and can help you see for miles

more riddles help me im lost please .... duo, magnificent,unicycle,god,and a couple freezing, discover the missing object

Is it possible for this equation 2C + D = E + F to have a rate law of rate = k [C]^2[D]^3

solve for x 6tanx - 4sinx = 1 i tried it but got a quartic formula :S 16sin^4x + 8sin^3x + 37sin^2x - 36 = 0

Which changes temperature more rapidly, land or water

In this government. pme group is in charge of the money and economics of the country. They also have all the power. What type of government is this?

can you help me solve this?. 10>n-1

i nedd pics of common germs

Lily walked 2 blocks east, then 1 block south. How would you determine her total displacement?

What routes were utilized for romantrade with china?

Question No: 1 Mr. A, as a financial consultant, has prepared a feasibility report of a project for XYZ Company that the company is planning to undertake. He has suggested that the project is feasible. The consultancy fee paid to Mr. A will be considered...

the rule for input output table divide m by 3 what is m

if y = x-19, what is the value of x when y=34?

An auto race is held on a circular track. A car completes one lap in a time of 16.9 s, with an average tangential speed of 48.1 m/s. Find the following (a) the average angular speed (b) the radius of the track i found part a which was .3716 but need help...

how many grams of Na2CO3 must be dissolved into 155 g of water to create a solution with the molality of 8.20 mol/kg?

What two numbers have a product of 3.6 and a sum of 3.8?

The Middle East is the spiritual homeland for all of the following world religions EXCEPT

which of these are strong electrolytes, weak electrolytes and non electrolytes. H2SO4 FeCl2 HClO AgCl I put AgCl as a non H2So4 and HCl as strong FeCl2 as weak but the computer told me my answer is wrong Can some one help please?

true or false only animals undergo respiration

find the product or quotient. write the strategy you used, write model, break apart, multiplication table, inverse operations, pattern, or doubles

Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ΔH = -81.5 kJ A 13.0 g sample of CaCl2 is dissolved in 134 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundin...

The combustion of 0.1619 g benzoic acid increases the temperature of a bomb calorimeter by 2.77°C. Calculate the heat capacity of this calorimeter. (The energy released by combustion of benzoic acid is 26.42 kJ/g.) kJ/°C A 0.1510 g sample of vanillin (C8H...

creat a logic for a program that continuously prompts the user for a numeric number of dollars until the user enters 0. pass each entered amount to a conversion method that displays breakdown of the passed amount into the fewest bills

For which salt in each of the following groups will the solubility depend on pH? Pb(OH)2 PbCl2

A diver has a mass of 75 kg takes part in a competition by having to perform 10 dives off the 10m platform above the water. Before he takes part he snacks on an energy bar (150 g) which provides 15 kj of energy. How many would the diver need to consume to...

how many ml of a 1 M NaOH solution do you need to add to a 250 ml flask and bring it to volume with deionized water to make a 0.12 M NaOH solution

Describe one environmental problem that causes ill health,accidents,crises and disasters

Which of the following best describes the difference between a keyword and subject search? Please make selection! A keyword search uses subject headings, but a subject search does not A subject search can retrieve false hits, but a keyword search does not...

another band has 30 speakers. they stack them at least 4 high, but no taller than 6 high. what are all the different arrays they could make?

Rock bands often stack their speakers in an array. One teen band has 24 speakers. They stack them at least 2 high, but no taller than 8 high. What are all the different arrays they can make.

One band has fewer than 40 speakers. They stack them in a array exactly 9 high. How many speakers could they have? Explain how you know.

forty people are lined up to ride the ski lift to the top of the mountain. Each chair on the holds 3 people. How many chairs will it take to get everyone up the mountain?

Sources of stress do not automatically cause stress-related problems. Moderators of stress, which can include our personal strengths, might mean that we can have a healthier and more productive life in spite of life's challenges, or maybe even because of...

I am moving to a new house. My old house is 3 kilometers from my new house. How many meters is the old house from the new house?

Explain whether the following statement is true or false: “The ordered pair (1,5) is the same as the order pair (5,1).”

Sheila received a 6.5% commission on a house she sold for $110,400. How much commission did she receive?

Erma is paid $516.72 biweekly. What are her annual earnings?

Joan receives an annual salary of $22,768.68. What is the total amount of her gross pay each period if she is paid monthly?

what are the 5 number combo in 1 to 39

What career can I take

what is the time for the first clock

2ax - 3ay + 2x - 3y

Suppose that a crayon weighs the same as a marker. You have a box of crayons, 4 extra crayons, and 20 markers. Let b be the number of crayons in the box. A scale balances with all the crayons on one side and all the markers on the other. You remove marker...

How many grams of calcium carbonate would it take to neutralize if i have 10ml 3 molar sulfuric acid? (can this be explained in detail?)

i want to neutralize a 10 ml 3 molar sulfuric acid using calcium carbonate but don't know how to do the math the explanation confused me. (also i have to use sig fig and uncertainty)

The endpoints of are A(2, 2) and B(3, 8). is dilated by a scale factor of 3.5 with the origin as the center of dilation to give image . What are the slope (m) and length of ? Use the distance formula to help you decide: .

it took us 3 hour to drive to a concert.on his way home he increased his speed by 19 miles got home in 2 hours . what was the speed

Please I need help with this problem. it took us 3 hour to drive to a concert.on his way home he increased his speed by 19 miles got home in 2 hours . what was the speed? thank you

Train #1 leaves san diego at 4pm. train #2 leaves san diego at 6pm.train #2 travels 42 mph faster than train #1. if train # 2 overtakes train #1 at 8pm, what is the speed of each train?

Each cylinder bore of a cylinder engine has a diameter of 2.50in. and a height of 4.90 what is the combined total surface area of all four cylinder?

A rectangle piece of gold has dimensions 0.3125in. by 18.0in by 15.0 in what is its total surface area? if gold weighs 0.698lb/in3, determine its weight.

what generalization can you make about the abolition of slavery in the north?

the area of the pool is 108m. what is the length of the pool if it is 9m wide

using the Kw for pure water, show that: pH = pKw - pOH

A three-strand wire fence around a square 40-acre parcel would require how much wire?

3 equal charges each of of 2*0.000001C are fixed at three corners of an equilateral triangle ofsides 5 cm.find the column force experienced by one of the charge due to the other two

arrange smallest to largest 3/4,2/3,5/9,5/6

It has a solution to 10% v/V that has a density of 1.3 g/mL and a total volume of 200 mL (a) that solute mass has the solution (B) expresses the concentration of the solution in% m/m

Why is 5% NaOH insoluble in HCl?

For a 0.50 molal solution of sucrose in water, calculate the freezing point and the boiling point of the solution. Please list each step.?

What is the mass of the organic substance formed by heating of 21.0g of butanoate of ammonium, admitting that the reaction presents a yield of 50%?

Why is CO2 not ionic?

What's the name of the following compound? H3C-H2C-H2C-SO3H

A 0.8552g sample of copper alloy is treated with 8 molar nitric acid and filtered and the precipitate is ignited giving a residue of 0.0632g of SnO2. The zinc is determined in one half of the filterate by precipitating it as ZnNH4PO4 and then igniting wit...

Which is the mass of the solute in 400 grams of 20% solution. What is the concentration of this solution knowing that its density is 1.2 g/mL

The decomposition of hydrogen iodide if the equation: 2HI (g)--> H2 (g) + I2 (g) The reaction is second order and has a constant rate equal to 1, 6X10^-3 L/mol * s at 700 degrees. If the initial HI concentration in a vessel is 3.4X10 ^-2m. How many minute...

Certain sample of 850 grams of ethyl alcohol has a purity of 96% in mass relative to the C2H6O2, which is the mass in grams of C2H6O2 in this sample ?

A 100ml aliquot of a water sample containing Ca(II) and Mg(II) is titrated with 22,74mL of EDTA 0.00998 mol/L at PH 10. Another aliquot of 100ml of the same sample is treated with NaOH to precipitate Mg(OH)2 and is then titrated with PH 13 with 15.86 ML o...

The volume of a H2SO4 solution to 36.75% by weight of density 1, 8g/cm ^ 3, necessary to prepare 500 ml of a solution 3N of sulphuric acid is approximately:

An impure silver sample weighing 0.1652g reacts with diluted HNO3, forming the add HCl, a white precipitate that weighed 0.0911 g of silver chloride. What degree of purity of silver in the sample?

Ok i just wants to meke sure if this is grammatically correct. Here is the phrase: "The personal growth throughout one's life" or is it "The personal growth throughout ones life" or is it "The personal growth throughout ones' life" I know basic possessive...

What is the quantity of material of NH4Cl that should be added to a solution 0.1 of NH3 to form 1L of a solution with ph 8? Kb = 1, 8x10 ^-5

We can determine the content (%) of calcium in milk through complexometric analysis by titration with EDTA. If we weigh 0.50 g of milk powder and titrate with EDTA 0.010 mol/L. What percentage of Ca2+does the milk if expended EDTA was 13.6 ml?

An analyst wants to determine the content of a 7% magnesium hydroxide bottle acquired in a drugstore, through the Volumetry method of neutralization. 8.995 g of magnesium hydroxide suspension were avolumados to 100ml of water, then,25 ml were added to the...

25 ml of milk were titrated with a 0.124M KOH solution of potassium hydroxide. If 4.5 ml of KOH solution were required to reach the titration endpoint, with a percentage (% w / v) lactic acid present in the milk? (MM = 90.08g / mol)

5.750 ml of a soil sample was dissolved in water up to the volume of 50 ml. An aliquot of 10 ml of the same was transferred to an Erlenmeyer flask and added 10 ml of KOH 1 mol L-1 and 2. Drops of Calcein and the solution that had a yellow coloration was t...

What is the pH of sodium hydroxide (NaOH) 0.5N

Knowing that the Atom X mass is equivalent to 6 boron 10 atoms, what is the relationship between the masses of atom X and the carbon atom 12?

What volume of 15.00 M CaCl2 solutions is needed to make 3.000 gallons of 5.500 M CaCl2 solution ?

A calorimeter is filled with 250.0 g of water at 24.6oC. A 60.0 g sample of a metal at 100.0 oC is dropped in this calorimeter and causes the temperature to increase a total of 4.5oC. What is the specific heat of the metal (in J/g°C)? Ignore the calorimet...

What is the g/L concentration of a solution terminating 10g of NaCI with 95% purity in 250 ml of water?

The melting temperatures of the two isomers of molecular formula C2H6O are-139 °c and-115 °c. Knowing that one of the isomers is an alcohol and the other a ether, indicate the melting temperature corresponding to each of them

What volume of 0.307 m naoh must be added to 200.0ml of 0.425m acetic acid (ka = 1.75 x 10-5 ) to produce a buffer of ph = 4.250?

What is the %v/v concentration of a solution made by adding 25 ml of acetone to 75 ml of water?

Indicate what type of compound (ionic or covalent) would be expected from the possible binary combinations of the following elements: O, F, Cs, CI, Na. Consider the elements ' negativity

Calculate the volume of hydrogen gas from the C4H9O3N compound, under temperature or pressure conditions (STP).

What is the answer to to 85,639 with the underlined being 3 answer ? I got 85,640 is this correct

0,0,3,4,5,7,8,9,36

who should I choose on call of the wild

Answers

The following answers were posted by visitors named william.

why did socialism appeal to some americans in the late 1800s?

How much force is needed to accelerate a 50-kg rider and her 250-kg motorcycle at 5 m/s2?

where does the "3" go then? 3x^2+3 = 3 x(x^2 + 1) = "3"(x+i)(x-i) because the answer is: (x-1)(3x-1)(x+i)(x-i)

I don't see my parents, only on their day offs or the weekends.

My homework paper lels me that I need to know. what did thomas edison invent.

What is <10x10> divided by 200 =___

He should put the money in the bank.So that he doesnot hafe to make aloan later.

They all have values around there, so I'm sure the proportionality is something like that. But I'm supposed to graph it to show this proportionality and I'm not sure what goes on the axis. Is the y-axis f and x-axis 1/length^0.5 or is the y-axis 1/f^2 and...

im lost on this site ,i do not see a search area to type in my riddle ,or do i have to read through all the riddles to find mine listed .thanks for your help

Really? How would the mechanism look like?

I got the quartic by moving the sin to the right, squaring both sides, then multiplying everything by sin^2 and then changing the cos to sin. My friend gave me this question, and he got it from his virtual school for gr 12 advanced functions lol.

the puritans missionary efforts to convert indians to christians were

look under pigskin geography 2008.

kourtney is completly correct just took test 100%

we need the j to z of california ABC book please help us

Self-funding is an alternative to fully insured group health insurance plans. Instead of an insurance company collecting premiums and paying your claims, the company funds the program, sets the rules and has control over paying claims. More than 60 percen...

debit to deferred tax asset

b,a,b,b,a,c,a,b,c,a,a,b

how to math i need want

Thank you so much Reiny =]

rock bands often stack their speakers in an array. one teen band has 24 speakers. they stack them at least 2 high, but no taller than 8 high. what are all different arrays they can make?

another band has 48 speakers. they stack them at 4 high, but no taller than 6 high. what are all the different arrays they can make?

That escalated quickly

A cable with 24.0N of tension pulls straight up on a 1.02kg block that is initially at rest What is the block's speed after being lifted 2.20m ? Solve this problem using work and energy. Express your answer with the appropriate units.

Which of the following translations corresponds to the matrix ?

i think you meant carbonate not bicarbonate

hank you Reiny.

po box 645 nsawam

thx i was working on that on that for 1 1/2 hours

1.A 2.C 3.B 100% right, i just took it. your welcome!:)

% SN = [mass SnO2/mm] * mm Sn -------------------------------------* 100 = Sample 5.82% Zn

I'm lost when I find% Zinc and copper, how is the stoichiometry of the reaction?

the answer is 4

* Calculation of the quantity in moles of CA2 +: V (EDTA) L * M (EDTA) = > 0.0136 * 0.010 = > 0.000136 moles CA2 + * Calculation of the quantity in grams of Ca2 +: Moles Ca2 + * atomic mass Ca 0.000136 * 40.078 = > 0.00545 g Finally, percentage (%) of Ca2...

thank you so much!

libgem i know you connections academy?

connections academy?

just amazing yall

Good work i need it so bad

FALSE; because There are fewer organisms in deserts

Thank u very much :)

Thank u , you save my life !!

what is this form called

a rectangle with the length of 3 feet and a width 1/4 some people might divide some people might multiply the right answer is to multiply so 3x4=12 or 4+4+4=12 or 3+3+3+3=12 it is 12 the area is twelve

Which sign makes the statement true 3/8 7/8 = < <

i love you george

as relieved as a mother after her baby has finally slept

THANK YOU SO MUCH LUNA!!!!

im in connections a and c

thats what I had gotten but on my textbook, it says the answer is 24

it not be yo falut peaople can be jerks shadow

me to i am houston conexs

answer it yo self

the superier uplands

what are the answers

assuming no miscommunication, this question is incredibly confusing. i think that what it might be asking is not the limit but what would make it equal to 8? so I would just plug in random numbers till I get the limit = 8

ok so we've corrected that mistake, but what can I do after? do i then say sqrt(2)=csc(x) and then what?

my mistake, I pressed submit too early but the question is still fully intact. I will write my steps so far in here. so at first I tried factoring to the point I got (|x-3|)/ (3x+4)(x-3) but then I got stuck since I dont think I can factor the absolute va...

Beep Boop answer computing. bam! you are right! (i made a mistake doing subtractions! thank you for helping)

I dont think thats the answer! would appreciate another look at it

I tried entering the answer into my question but it still said it was wrong, also shouldnt u=sec^2(x) as per the question? I appreciate any help, been stuck on this for hours

I got the answer! for future readers, its ((u-1)^7u^3)/2

shouldnt it converge?