mandy

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

Questions

The following questions were asked by visitors named mandy.

A 120 kg mass is blown apart into an 80 kg piece and 40 kg piece. after the blast, the two masses are moving apart with a relative velocity of 60 m/s. the total kinetic energy after the explosion is: A. 21 kJ B. 35 kJ C. 48 kJ D. 56 kJ E. 82 kJ Because of...

Suppose a firm faces a downward sloping demand curve givven by the equation 1=100-1/3P. The firm's cost function is given by the equation C=30+1/4Q^2. Find the profit maximizing level of output.

How do you determine whether to quote, paraphrase, or summarize a source?

got to do a project on first aid. need some tips on the same and sites where can look for info

How do i calculate the effective nuclear charge of a 3d electron of copper? what is the zeff. for a electron in the 3d orbital of copper. i looked up the answer to be 13.20, but i calculated 13.05 this is my work: (1s2)(2s2 2p6)(3s2 3p6)(3d10)(4s1) .35(17...

Draw the Lewis structure of NO2- Assign formal charges to each atom in the O3 molecule shown below. Be sure to click the +/- button below (it will turn yellow when activated) before clicking on the molecule. .. .. .. :O--O==O .. .. Based on formal charges...

Write a Lewis structure of OSF4 in which the formal charges of all atoms are zero

what did the ape think of the grape's house?its not divine that's not enough letters! according to some students, what if the true purpose of homework?

please so by multiplying binomials (x+6)(8x-x)

help me solve this analogy closed is to emptiness as open is to occupancy vacancy security enclosure

in A Nation Apart • What makes the arguments viable and compelling?

A potter forms a piece of clay into a cylinder. As he rolls it, the length,L, of the cylinder increases and the radius, r, decreases. If the length of the cylinder is increasing at .1 cm per second, find the rate at which the radius is changing when the r...

Calculate the boiling point elevation of a solution containing 22.8 g of glucose (C6H12O6) dissolved in 672.0 g of water. Calculate the freezing point depression for the same solution.

Two point charges 1.5 cm apart have an electric potential energy -150 mu J. The total charge is 34 nC. what are q_1 and q_2?

The value of pKb for the base ethylamine (CH3CH2NH2) is 3.19 at 25°C, while the pKa for formic acid (HCO2H) is 3.74, also at 25°C. a) Calculate the value of the equilibrium constant Kc for the following aqueous equilibrium: HCO2– (aq) + CH3CH2NH3+(aq)-->H...

a battery with and emf of 12V and an internal resistance of 0.5 ohms, is connected in series to a resistor of 5.0 ohms. what is the terminal voltage (n V) of the battery?

10% of a sample reacts in 25 s. If the reaction follows first order kinetics, how long would it take for half the sample to react?

what is 43% of 40,000,000,000

who was the main character in epicac

shakespeare usually used short stage directions which one is the odd one out and why

compare these two quotes they fight tybalt falls he gave me a tremendous dip and roll so that the church jumped over its weathercock

a passenger at an airport pulls a rolling suitcase by its handle. If the force used is 10N and the handle makes an angle of 25 degrees to the horizontal, what is the work done by the pulling force while the passenger walks 200m?

a 3 kg block slides down a frictionless plane inclined 20 degrees to the horizontal. If the length of the plane's surface is 1.50m, how much work is done, and by what force? suppose the coefficient of kinetic friction between the block and the plane. What...

A researcher randomly selects 37 subjects and administers an attitude test regarding a product. Their mean is 22 and their standard deviation is 2.4. Construct the 90% confidence interval for the mean score of all such subjects

Why did the Bourbon democrats believe they should lead the government?

What is the primary role of each branch of government?

A rocket blasts off vertically from rest on the launch pad with an upward acceleration of 2.80 . At 30.0 after blastoff, the engines suddenly fail, which means that the force they produce instantly stops.

how many molecules will be in 275 grams of c2h6

the solubility of Kl is 50g in 100g of H2O at 20 celcius, if 110g of Kl are added to 220g of H2O, is the soultion saturated or unsaturated? and what is the %m/m of the solution?

what is the final concentration of a solution if 100mL of water is added to a 25mL of 5.0 M NaCl?

How many grams of Nitric oxide are required to produce 145g of nitrogen in this reaction: Al2O3(s)+6NO(g)---->5N2(g)+6H2o(l)

At the beginning at a walk, Alex and Beth are 2.2 miles apart. If they leave at the same time and walk in the same direction, Alex overtakes Beth in 11 hours. If they walk towards each other, they meet in 1 hour. What are there speeds? Alex? mph Beth? mph

Christine went shopping and bought each of her eight nephews a gift., either a video costing $14.95 or a cd costing $16.88. She spent $127.32 on the gifts. How many videos and how many cds did she buy?

IF a plane can travel 500 miles per hour with the wind and 420 miles per hour against the wind, find the speed of the plane in still air.

Solve the equation by using the square root property. Simplify all radicals. (a) x2 = 256 (b) t 2 = -144

Solve the equation by using the square root property. Simplify all radicals. 2x^2 = 11 how do I solve this?

What are all the square roots of 100/9

The area of a circle with radius r is given by the formula A=πr^2. If a circle has area 36π square inches, what is the radius?

to find the length of a side of a triangle b=8 and c=10 then a=?

So if 2142.45 divided by 2000 which equals to 1.071225 and I am try to find the rate from that it would be 1.03 which should be 3% or 3.3%?

Find the length of right side of a triangle if a=2,b=4 so c=?

I conducted a Gas Chromatography experiment using Flame Ionisation Detector (FID).A capillary column was used. 1)Blank 2) Standard 3) Sample 4)Blank 5)Standard The above was injected into the system. In 2)Standard chromatogram,a sharp, thin peak was obser...

pKa = 2.1; pH = 2.0 (stomach); pH = 6 (intestines) = 99.98741233 % ionized in intestines = 0.012587669 % non-ionized in = 55.7311634 % non -ionized in stomach =44.2688366% ionized in stomach Predict whether this compound will be absorbed by passive diffus...

I have 2 questions on columns used in the Gas Chromatography-Flame Ionisation Detector (GC-FID) instrument: - 1) If a capillary column is left in the GC-FID instrument for 2 months with the instrument switched off (i.e. instrument is not in use),will this...

how do i write a commentary on a newspaper? I searched on google but i don't get it.

2. Why do people label and group other people?

An investment of $4000 is deposited into an account in which interest is compounded monthly. Complete the table by filling in the amounts to which the investment grows at the indicated times. (Round your answers to the nearest cent.) r = 4%

which temperature is colder: 50F or 50C???

a typical E coli is 2um in length, how long is the E coli in nanometers??

about how many bacteria (e coli) would you have to line up to stretch 1mm??

During the middle of the twentieth century, North American psychology was dominated by A. evolutionary theory. C. neuroscience. B. cognitive development. D. behaviorism. 8. What is a major limitation of the psychophysiological method? A. Investigators can...

1.) a buffer is a substance which: a) donates H+ in acidic solutions b) accepts H+ in basic solutions c) accepts OH- in basic solution d) donates H+ in basic solution e) donates OH- in acidic solution f) accepts H+ in acid solution g) accepts OH- in acid...

what type of bond would carbon, sodium, and neon form?

6. Which of the following statements about the field of child development is correct? A. It’s devoted to understanding human constancy and change over the lifespan. B. It’s part of a larger, interdisciplinary field known as developmental science. C. It fo...

explain how Eukaryotic cells are attached to eachother? why is it important??

what effect would the absense of carbohydrates have on an animal cell membrane?

"Thomas Jefferson owned slaves, so slavery must have been a good idea" may commit which fallacy? (Points : 1) Appeal to pity No fallacy committed Appeal to false authority Appeal to ignorance

"The Senator wants to cut spending on police. I guess she doesn't care if we all get murdered" may commit which fallacy? (Points : 1) Straw man fallacy False Cause Appeal to popularity No fallacy committed

which of the following was the primary cause of the balkan wars conducted during the cliton administration?

What do I see as the strengths and weaknesses of each of these three kinds of relativism. I posted my answer but apparently I am missing something from the text that I am not grasping can someone please help me.

its a fill in the blank. My answer "fieldwork"

Ethnocentrism refers to: (Points : 1) the need to focus on another society’s problems. the judging of another culture in terms of your own. ***the view that your own society is inferior to others. the view that people’s ideal behavior is better than their...

how does the retrovirus obtain its envelope?!?

Could some one PLEASE check my answers Competition among co-wives in a polygynous household is reduced when: ****(a) Sororal polygyny is practiced. co-wives all live in the same household and share the same kitchen. the wives all live together. the co-wiv...

a 27 inch board is to be cut into three pieces so that the second piece is 3 times as long as the first piece and the third piece is 5 times as long as the first piece. If x represents the length of the first piece, find the length of all three pieces.

a 17 foot piece of string is cut into two pieces so that the longer piece is 5 feet longer than twice the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces.

the sum of 5/3 and twice a number is equal to 16/3 subtracted from three times the number. find the number

twice the sum of a number and 3 is equal to three times the difference of the number and 9. find the number

Theocracies are: (Points : 1) 9A)****determined by the religious beliefs of the society. based on the accumulation of wealth by individuals. a group of elected officials. are sanctioned by Big Men. 2. Chiefs within chiefdoms generally gained their positio...

ANSWERS ARE IN() WITH *** SOME ONE PLEASE CHECK MY ANSWERS... THANKS Civilization, as defined by anthropologists, means: how “cultured” a population is. any successful society. a self-contained group with no necessity for trade. (D)***a society with advan...

when it came to pass out valentines each of the 24 students had valentine to give to the other students in the class how many total valentines will be passede out?

Evaluate each of the following. Show all your calculations. a) f'(3) if f(x) = x^4 − 3x b) f' (−2) if f(x) = 2x^3 + 4x^2 − 5x + 8 c) f" (1) if f(X) = −3x^2 − 5x + 7 d)f" (−3) if f(x) = 4x^3 − 3x^2 + 2x − 6...

WHOEVER has made a voyage up the Hudson must remember the Kaatskill mountains. They are a dismembered branch of the great Appalachian family, and are seen away to the west of the river, swelling up to a noble height, and lording it over the surrounding co...

At the foot of these fairy mountains the voyager may have descried the light smoke curling up from a village whose shingle roofs gleam among the trees, just where the blue tints of the upland melt away into the fresh green of the nearer landscape. It is a...

Fable for tomorrow This town does not actually exist, but it might easily have a thousand counterparts in America or elsewhere in the world. I know of no community that has experienced all the misfortunes I describe. Yet every one of these disasters has a...

If f:x→4x+5,find the composite function f^2.Hence,find f^2(1over2)and f^2(-2) ? The value of x gor which f^2(x)=9

Functions f and g are defined by f:x→ax-b,where a and b are constants and g:x→x+5.Given that fg(1)=11 and gf(2)=8. Calculate the values of a and b? What are the values of fg(-1)and gf(3)

Find f^-1 in similar form for each of the following functions. Question no. 1 ↓ f:x→3x over x-3,x not equal to 3 Question no. 2 ↓ f:x→2x+4 over 2x-1,x not equal to 1over2

A function f is defined by f:x→x+10 over x-8,x not equal to 8.Find the values of x for which f^-1(x)=x.

A function f is defined by f:x→x+1 over x-1,x is not equal to 1.If f^2(2)=3f^-1(k),find the value of k.

Functions f and g are defined by f:x→3 over x+2,x is not equal to k and g:x→2x+1. No.1~State the value of k

Functions f and g are defined by f:x→3 /(x+2),x is not equal to k . No.1~State the value of k

A function f is defined by f:x→(x+1)/ (x-1), x is not equal to 1. If f^2(2)=3f^-1(k),find the value of k.

Function f and g are defined by f:x→4-x and g:x→px^2+q where p and q are constants.Given that the composite function gf:x→x^2-8x+11,find the values of p and q.

Ravi bought x toys for 27$ and 3 mechanical pencils for x$.Given that the total cost of a toy and a mechanical pencil is 6$,write a quadratic equation in terms of x.

The area of the right angled triangle abc (x+4)(x+3) is twice the area of a square with sides x cm.Write a quadratic equation in terms of x.

The product of two consecutive even numbers os 80.Find the values of the numbers.

x^2-17x+52=0 The answer is 4,13 But i don't know how to do.. ASAP...

Answers

The following answers were posted by visitors named mandy.

How do i calculate the effective nuclear charge of a 3d electron of copper? what is the zeff. for a electron in the 3d orbital of copper. i looked up the answer to be 13.20, but i calculated 13.05 this is my work: (1s2)(2s2 2p6)(3s2 3p6)(3d10)(4s1) .35(17...

so then Zeff=z-s therfore 15.95-13.15 and that gives me the answer?

For a copper atom what is the value of Z ?

For a 3d electron in a copper atom, what is the value of s ?

Draw the Lewis structure of NO2- Assign formal charges to each atom in the O3 molecule shown below. Be sure to click the +/- button below (it will turn yellow when activated) before clicking on the molecule. .. .. .. :O--O==O .. .. Based on formal charges...

Write a Lewis structure of OSF4 in which the formal charges of all atoms are zero

ok so if the N is double bonded to the left O and single bonded to the right O , and N has a lone pair.. does that mean that the left O also has a lone pair and 3 lone pairs in the right side according to ur diagram.. also for the second Q .. (in my diagr...

A prejudicial statement is a preconceived idea or conviction that judges without all of the facts, usually said to be in favor to support their beliefs or ideas. Prejudicial rhetorical device is the act of not hiding a slanted view by definitions by examp...

1/c2/c3/b4/a5/c6/d7/a/8/a9/b10/a11/a12/b13/c14/b15/a16/d17/a18/c19/a20/b

This is wrong above.When dealing with GB you have to use the 1024 multiples,not 1000. 4.4 GB is 4,774,464,025.6 bytes. it should read something like: 4,774,464,025.6 / 2,000,000Mbps = 2362.3 * 8 = 18897.85 secs which is then: 1.89*10^4 Hope this helps

Sorry the figure is wrong above it should be: 4,774,464,025.6 / 2,000,000Mbps = 2387.23

sorry i forgot to add the coefficient of friction is .275

There is no text for this assignment. That's why I am stumped.

Yup its correct.

the solubility of Kl is 50g in 100g of H2O at 20 celcius, if 110g of Kl are added to 220g of H2O, is the soultion saturated or unsaturated? and what is the %m/m of the solution?

Never mind I got it. 460

Never mind on this one as well. I figured it out as well. It took me a minute. lol 4 videos and 4 cds.

Dear Bob, Can the sample results be accepted then if we exclude the "integration" of this "peak" from the chromatogram?

thank you! How about a magazine article, it would be the same?

During the middle of the twentieth century, North American psychology was dominated by A. evolutionary theory. C. neuroscience. B. cognitive development. D. behaviorism. What is a major limitation of the psychophysiological method? A. Investigators can’t...

I THINK ITS ITS STRAW MAN BUT NOT SURE

These are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the "Details" section below. Date Taken: 11/18/2012 Time Spent: 2 h , 19 min , 00 secs Points Received: 23 / 25 (92%) Question...

1. Question : A sentence is said to be truth-functional if and only if Student Answer: the sentence might be true. the truth-value of the sentence cannot be determined from the truth values of its components. the truth-value of the sentence is determined...

thanks Writeacher, that was very helpful.

Ethnographic methods are to ethnological methods as

Could some one PLEASE check my answers Competition among co-wives in a polygynous household is reduced when: ****(a) Sororal polygyny is practiced. co-wives all live in the same household and share the same kitchen. the wives all live together. the co-wiv...

I have read and re read each area of the book and I don't get it for # 10 its like its between the answer I gave and (B) 5(d) 7(D) least likely

Thanks for the assistance!!!! ANT is killing me but again Thanks Ms.Sue

@ Writeacher yes it was correct. A lot of the answers were a bit confusing to me like you I had thought the same thing.

In the SQR3 method, the three R’s stand for all of the following EXCEPT:

MS.Sue I am confused on my answer 4 i know i marked d but in the book it seems misleading because it talks about the States are at the extreme end of the social inequality continuum; they are highly stratified. A society is perceived as stratified if (a)...

Thanks Taylor and Ms.Sue

pathos is emotion

ok i got it is LOGOS because he is using reasoning

should be ETHOS

IN Rachel carson essay FABLE FOR TOMORROW she used only the pathos and ethos Right?

so you said arguments is logos

Reiny,thanks a lot! You are right...can you explain why the answer x is not equal to 1 ?

Ohh...ok..thank you!

Question no 2 Find the value of p for which f(4)=g^-1(p)

Can you show me the step how to get -2?

No.1 y=3x/x-3 x=3y/y-3 xy-3y=3x y(x-3)=3x y=3x/x-3 f^-1(x)=3x/x-3,x≠3 Am i correct ?:D

I still cant get the k is -2..

The no. 1 how to do? Your answer in my book is right but i don't know how to do the step

Still didn't get k=-2..no 2 i know alrdy..thnks

Functions f and g are defined by f:x→3 /(x+2),x is not equal to k . No.1~State the value of k

The question answer is x=8,10....how to get it..pls help me..

Oh thanks..its 2^5=32..

I know that I can see the full amount of time. the only one that is the best way to get the best way to get the best way to get

Yup..Thanks a lot!

Ohh..thank u ^^

ASAP.. I knw the (a) a=5,d=5 But the (b) how to do?

Yup..all of it are shouldnt

Quote Two similes from the poem, explain what they mean? Please help

No offense but the point of this website is to help us with a couple answers that we don't know otherwise we wouldn't be asking. I think I can comprehend to look up the title and 'press enter', I came here because I already did that and didn't find what I...

fair point. thank you

I need help plz help me