Dina
This page lists questions and answers that were posted by visitors named Dina.
Questions
The following questions were asked by visitors named Dina.
how did using a formal writing process (planning, drafting, developing, revising, editing, and proofreading)help you creat more effective academic paper? This question sounds as if your teaching is asking YOU about how the writing process helped YOU write...
19 years ago
If 2^n>n^2 and n>5, then 2^n+1>(n+1)^2 Proof: Assuming that 2^n>n^2 then I can say that 2*2^2>2*n^2 = 2^n+1>2n^2 If I can show that 2n^2>(n+1)^2 then I will be done by transitivity. So 2n^2>(n+1)^2? then 2n^2>n^2+2n+1? then n^2>2n+1, hence n^2-2n-1>0, and...
18 years ago
(sec(of theta)+1)(sec(of theta)-1)=tan^2(of theta)
17 years ago
Hi I was wondering if anyone can help me edit/proofread my english essay =)
17 years ago
ugh please help me, im having such a huge stress over this! Le premier arrondissement de Paris est le plus petit et assez historique. Il a été créé le 24 mars 1852. Le population du premier arrondissement était approximativement de quatre-vingt dix mille...
17 years ago
Well.. i posted this before and I re-edited a few things. I need suggestions and editing please :)
17 years ago
Hello, I am having problem with two lab questions and was wondering if someone can help! 1. Calculate the percentage of the empty space in a face-centered cubic lattice, and show that it does not depend on the edge length of the unit cell ot on the size o...
15 years ago
Which ion in each of the following pairs would you expect to be more strongly hydrated? (a) Na+ or Mg2+ Why? thanks!!
16 years ago
A solution of sodium chloride in water has a vapor pressure of 18.3 torr at 25°C. What is the mole fraction of NaCl in this solution? __________ What would be the vapor pressure of this solution at 45°C? The vapor pressure of pure water is 23.8 torr at 25...
16 years ago
was hoping someone can help me check if these answers make sense for a silver copper alloy lab. 3. Why don’t you have to weigh the sodium chloride on a sensitive balance? This one I am not sure about, It is because an excess of NaCl is needed to make sure...
15 years ago
Can anyone help me with these Chemistry questions? I am trying to study for an upcoming test and its just not sinking in as well and I thought. This is Thermochem for a heads up: Suppose 33mL of 1.20M HCl is added to 42mL of a solution containing excess s...
15 years ago
Can someone help me correct these phrases? Avant que j'ai choisi qu'école a laquelle... I wanted to say 'Before I chose the school where....'
15 years ago
Hello, I am having problem with two lab questions and was wondering if someone can help! 1. Calculate the percentage of the empty space in a face-centered cubic lattice, and show that it does not depend on the edge length of the unit cell ot on the size o...
15 years ago
which of the following group of rocks can be easily dissolved in water? a,sandstone,granite and obsidian b.limestone,granite and basalt c.quartz,schitz and chalk d.limestone,chalk and sandstone
15 years ago
a delta is a: a.wid river mouth where tides are experienced b.long narrow arm of the sea resulting from the submergence of a glaciated valley c.fan-shaped piece of land at the mouth of a river,resulting from deposition by the river d.funnel-shaped drowned...
15 years ago
natural banks which are sometimes built up by a river along the edges of its channel are called: a.river bluffs b.river cliffs c.levees d.slip-off slopes
15 years ago
Multiple choice 1. If the friend offers to pay you $1 five years from today, the net present value will: A)be higher than $1. B)depend upon the interest rate offered. C)be equal to zero since you don't have the dollar. D)not be important in understanding...
15 years ago
A Giffin good is not correctly described by which of the following? A)A Giffin good must be an inferior good. B)A Giffin good must be such that the income effect and the substitution effect move in opposite directions, and the income effect outweighs the...
15 years ago
The market for Good X can be depicted with the following demand and supply equations: Demand: P = 50 – 1/2Q Supply: P = 1/3Q Where P is price per unit and Q represents quantity in units. Policy makers plan on imposing a $1 per unit tax on this good. Quest...
15 years ago
Simplify the expression. 3 [ (15 - 3)^2 / 4] a. 36 b. 108 c. 18 d. 9
15 years ago
A chair lift holding a 100 kg man rises 5 meters in height in 10 second time period. Ignore the weight of the chair and related machinery and answer the following: How much power is required, in Watts?
14 years ago
A wooden block that is a rectangular prism is 12 inches long. Melinda cuts the wooden block along its length into 4 cubes. How long is each side of the cube?
13 years ago
Given f(x) and g(x) below, find: (a) f + g (b) f – g (c) f*g (d) f/g Please show all of your work. f(x) = x + 5 g(x) = 5x^2+15x-3
13 years ago
A car travels through a school zone at a speed of 36 m/s was the 45 mi/h speed limit exceeded? yes or no
11 years ago
I have .8ml of 35% by weight hydrogen peroxide. The hydrogen peroxide density is 1.14 g/ml. how many moles of hydrogen peroxide are there?
11 years ago
What is the definition of an equivalent? a lab procedure requires 1.25 equivalents of zinc powder. How do I determine how much zinc that is?
11 years ago
What is the pH of a solution that contains 0.30 M HC2H3O2 and 0.95 M C2H3O2-? Use Ka = 1.8 × 10-5 for HC2H3O2.
11 years ago
What is the pH of 4.7 M CH3NH3Cl. mehyl-amine, CH3NH2, Kb = 4.4 × 10-4. Do I find Ka first then take the -log(Ka) to find the pH of 4.7M CH3NH3Cl? or do I need to make I.C.E. table?
11 years ago
What is the product of 9/x-1*7/x-3
11 years ago
You and a friend stand on a snow-covered roof. You both throw snowballs from an elevation of 18 m with the same initial speed of 11 m/s, but in different directions. You through your snowball downward, at 40° below the horizontal; your friend throws her s...
11 years ago
As discussed in Example 4-7, the archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of water expelled from the fish's mouth. Suppose the archerfish squirts water with a speed of 1.4 m/s at an angle of 50.0° above th...
11 years ago
A pig slides down a 29° incline in twice the time it would take to slide down a frictionless 29° incline. What is the coefficient of kinetic friction between the pig and the incline?
10 years ago
You are going to write a fairy tale! Your story should include all of the standard elements of fairy tales. Begins “Once upon a time … ” Animals can act like humans. Involves magical items or helpers. Ends “ … happily ever after.” Your story must also ful...
10 years ago
how do you make 50ml of .1 molar solution of benzylamine in acetonitrile
10 years ago
which of the following assessments types has the greatest effect on your overall
10 years ago
A herd of 100 deer is introduced onto a small island. At first the herd increases rapidly, but eventually food resources dwindle and the population declines. Suppose the number of deer, N(t), after t years is described by the polynomial function: N(t)+ -t...
10 years ago
when it rains, there is a 20% chance that Jamie will go to the gym. When it does not rain, there is a 60% chance that Jamie will go to the gym. there is a 40% chance that it will rain tomorrow. a. what is the probability that Jamie will go to the gym b. i...
9 years ago
This is only part of the whole passage. What is the best way to simplify the horrific event because all this info is great to to include in my Summary but I don't want to include it all. ______________________________________ In the Republic of Bosnia-Her...
9 years ago
Problem 1) I don't understand how they got the answers for A) and B) : Ima Rushin can travel from Milwaukee Avenue to the school entrance gate at a constant speed of 22.5 m/s when the lights are green and there is no traffic. On Wednesday, Ima is stopped...
9 years ago
A tortoise and a hare are having a 1000-meter race. The tortoise runs the race at a constant speed of 2.30 cm/s. The hare moves at an average speed of 1.50 m/s for 10.0 minutes and then decides to take a nap. After waking up from the nap, the hare recogni...
9 years ago
I'm having trouble putting together a thesis and topic sentences. There is so much great information with my sources, everything seems to sound the same. This is a layout of how my topics could be arranged and organized . I don't know how to do a good tra...
9 years ago
Vector Addition: I know you can't physically do drawings on this site. Is there a way of someone explaining how to begin with this problem. Can I chose any scale. The directions said to use the head to tail method to determine the resultant vector of the...
9 years ago
This is another question I had too and didn't understand as well. Vector Addition: Use the head to tail method to determine the resultant vector of the following velocity vectors. V1= 540m/s @66 degrees V2= 12m/s @182 degrees V3= 96m/s @312 degrees V4= 33...
9 years ago
For the Atwood's Machine so the mass on the right side is 5 kg box which is 3m from the *table (represents the straight line)* The left side of the pulley is 2kg box which is at the table. 1.) How do you know or what do you know about the force of tension...
9 years ago
The questions asks to write a word equation and a balanced chemical equation for a reaction between aqueous copper (ii) sulfate and solid iron. Assume that iron forms the Fe2+ ion.) Include proper states of matter after each substance (s, l, g, aq). Here...
9 years ago
3. suppose a gas at STP. Calculate its pressure at 25 degrees celcius if volume remains unchanged 5. suppose 1.11 L of an unknown gas in a rigid container constant volume is cooled from 22 deg. C to -55 deg C. Calculate the new pressure of the gas 6.) Sup...
9 years ago
1300 kg car rounds a banked curve of radius= 50m. If car traveling at 75 km/h and the coefficient of static friction between the tire and road is 0.45 ... 1.) what is the minimum angle of the bank needed to keep the car in the turn? 2.) If the car changes...
9 years ago
I'm having trouble finding the answers to these questions (the answers should be in order from the article, it's just not clarifiable. Also, I put ****** .... ***** to show where the answers may be that I think is right, but I'm not sure)... 2. How does J...
9 years ago
Labor group: Student labor union (I am in the labor group!) Employer group: Administration of school _____________________________________ Directions: negotiate the student/admin contract (Some of these points from a realistic standpoint I wouldn't agree...
8 years ago
Which calorimeter do you use for determining the specific heat of the metal, the thermos or the Styrofoam cup?
8 years ago
A. Should Congress be able to regulate private business activity? For example, should they be able to set rules or laws that doesn't allow a small business owner from refusing someone service based on their religion, race, nationality, age or something el...
8 years ago
What mass of water is needed to completely react a 8.1 g packet of magnesium
8 years ago
Ali is planning to keep fit through practicing push-ups for 21 days. on the first day, he can only do 14 push-ups in a minute. He plans to do x more push-ups in a minute on the next day. How many push-ups can he do in a minute on 11th days? (in term of x)
8 years ago
If another mechanic is hired, fill up the table below and answer the following questions (1pt): a. Which configuration has the lowest Ls? b. Which configuration has the lowest Ws? c. Which configuration has the lowest Wq? d. Which configuration has the lo...
7 years ago
Gabriela has dinner at a cafe and the cost of her meal is $45.00Because of the service, she wants to leave a 15% percent tip. What is her total bill including tip?
7 years ago
As I solve this problem, it is undefined. Can you explain how you get 3 or 0. One of this is the answer but I'm not sure. lim as y approaches 0 6x^2 (cot y) (csc2y): A. 3 B. 0
7 years ago
The ratio of boys to girls at a certain school is 4:5. Calculate the number of boys if there are 1080 learners in the school
3 years ago
Answers
The following answers were posted by visitors named Dina.
oh.. it i don't think it would fit.. so maybe i can email it =)
17 years ago
alright. I will do that =) here we go Love, for some can be a very simple and beautiful concept, and yet, for others difficult, complicated, frustrating and often misunderstood. The word itself is a verb, which describes the feelings that one person has t...
17 years ago
In the poem “The Love Story of J. Alfred Prufrock,” the narrator, Prufrock depicted himself as a skinny man who was balding. Prufrock explained that he had the right clothes to look presentable, but not the right personality to approach the unknown woman...
17 years ago
Aside from Prufrock, Mike from the movie “Swingers” seemed to go through a similar problem in the beginning, but has a different and much happier ending. Mike was proven to have a much more successful relationship in the past, and after he broke up with t...
17 years ago
Mike and Prufrock are both very lonely inside and they wanted to share their lives with someone special. They had difficulties approaching a woman, whether they knew them or not. In “The Love Song by J. Alfred Prufrock,” Prufrock did not know if he should...
17 years ago
Aside from their similar problems with women, they also seemed to have a similar outlook on life. Like before, Prufrock never really lived his life to the fullest. He would procrastinate if he had to take a risk, like when he had to admit his feelings tow...
17 years ago
Both the movie and the poem began with two very similar characters in the beginning, however Mike is considered to be more of a dynamic character while Prufrock was portrayed as a static character. This ultimately means that at the end, they became two se...
17 years ago
sorry it was long.. please help =)
17 years ago
Ty so much! I will put much thought into your suggestions@
17 years ago
can someone edit this for me? Le premier arrondissement de Paris est le plus petit et assez historique. Il a été créé le 24 mars 1852. Le population du premier arrondissement était approximativement de quatre-vingt dix mille habitants il y a cent quarante...
17 years ago
Au centre du premier arrondissement, Le Musée du Louvre est le plus grand musée de Paris. Pendant le douzième siècle, le roi Philippe Auguste a construit Le Louvre, mais il ne l'a fini qu’au dix-huitième siècle. Le Louvre était la maison du roi Louis XIII...
17 years ago
Originairement, Le Musée du Louvre a contenu seulment des oeuvres d'art français. Aujourd’hui, Le Musée du Louvre contient plus de trois cent quatre-vingt mille objets d’art et il est organisé en huit départements. Une nouvelle addition au Musée du Louvre...
17 years ago
Au centre du premier arrondissement, Le Musée du Louvre est le plus grand musée de Paris. Pendant le douzième siècle, le roi Philippe Auguste a construit Le Louvre, mais il ne l'a fini qu’au dix-huitième siècle. Le Louvre était la maison du roi Louis XIII...
17 years ago
Originairement, Le Musée du Louvre a contenu seulment des oeuvres d'art français. Aujourd’hui, Le Musée du Louvre contient plus de trois cent quatre-vingt mille objets d’art et il est organisé en huit départements. Une nouvelle addition au Musée du Louvre...
17 years ago
ty so much ><
17 years ago
Le premier arrondissement de Paris est le plus petit et assez historique. Il a été créé le 24 mars 1852. La population du premier arrondissement était environ quatre-vingt dix mille habitants il y a cent quarante ans. Maintenant, elle est environ dix-sept...
17 years ago
Au centre du premier arrondissement, Le Musée du Louvre est le plus grand musée de Paris. Pendant le douzième siècle, le roi Philippe Auguste a construit Le Louvre, mais il ne l'a fini qu’au dix-huitième siècle. Le Louvre était la maison du roi Louis XIII...
17 years ago
À l’origine, Le Musée du Louvre a contenu seulment des oeuvres d'art français. Aujourd’hui, Le Musée contient plus de trois cent quatre-vingt mille objets d’art et il est organisé en huit départements. Une nouvelle addition au Musée du Louvre est la pyram...
17 years ago
merci :)!
17 years ago
also what about this? I. M Pei a été commandé par le président à créer la conception pour la Louvre Pyramide
17 years ago
what about when u are comparing the same charge Be2+ Mg2+ or the same base element Fe2+ Fe3+
16 years ago
what do you call it when somebody spends 20 years in the 24th row of a theater? Answer : Living In X Aisle
16 years ago
How can you help control Soil Erosion?
16 years ago
1. Find the mass of the alloy. Obtain a sample of dime and determine its mass on an analytical balance. 2. Dissolve the silver. Put the dime piece in a clean, 100-mL beaker and bring it over to the fume hood. Within the fume hood, carefully pour 10 mL of...
15 years ago
I did post the procedure on the other post:)
15 years ago
I think my older post was lost within the forum so I just reposted, sorry.
15 years ago
Wow, thank you so much! There is one more question,sorry><. 2. Why is a twofold excess of chloride added to precipitate the silver? The ionic product has to be more than constant in order for the particular compound to precipitate. In this lab, the exact...
15 years ago
wow sorry about the many posts! My internet was just crazy
15 years ago
1. B) 2.I don't know.Can you explain to me?
15 years ago
???108
15 years ago
Yes I agree I think B is correct. In the economic sphere, not the social sphere.
12 years ago
how many moles are in 4.6ml of 48% HBR? The 48% is by weight. I am not given the density this time.
11 years ago
Thank you. So it is w/v vs w/w that makes the difference
11 years ago
I am performing debromination of 1,2-diphenylethane. the reaction is a 1:1 ratio of moles. I have .41g of the dibromide compound and I need 1.25 equivalents of zinc. How many moles of zinc is that?
11 years ago
So I'm thinking It could start something like this, Once upon a time, there was a Majestic Macaw named Peregrin with a special gift : two zeros of a mysterious quadratic quadratic equation that don't even exist yet! In his squeaky voice he asks Beorn the...
10 years ago
Once upon a time, there was a Majestic Macaw named Peregrin with a special gift : two zeros of a mysterious quadratic quadratic equation that don't even exist yet! In his squeaky voice he asks Beorn the bear to form factors of this quadratic.Beorn takes t...
10 years ago
previous questions.. It's a confusing process for me to put what numbers where and use equations.
9 years ago
Really struggling.Please anyone!!
9 years ago
So the theoretical yield is 16.83 g Fe (s) ____________________________ x 100% = 55.845 atomic mass of Fe = 30.14 Now what do I do. Is that correct? ***feSO4=molesFeSO4*molmassFeSO4 151.908 g/mol = 1 mol FeSO4 x 151.908 ? Help please? Thankyou sorry this...
9 years ago
The very last part where it's in brackets [[[[[ .... ]]]]]] I don't think is relevant in the questions. I didn't find info there.
9 years ago
Is this right for #2) James defines a faction by saying it is where there are a lot of citizens who are united by a common ground of interest and are unfavorable to other citizen’s rights and the passions of the whole community.
9 years ago
I don't understand question 7 but I think I answered the other two right. 4.) • In order to get rid of factions, Madison wants to destroy liberty. His other possible solution was making sure everyone thinks the same thing. However, he rules out most of th...
9 years ago
Is this right? and is 4 & 5 correct? 7.) Madison thinks widening the country allows for the incoming of different parties who have different interests. If the society is smaller, then the reality of the situation will be difficult because everyone would n...
9 years ago
I need help in backing Each point even though (in reality, some demands I don't agree and strongly refute from the admin side, but I'm not in the admin side which makes this activity difficult)
8 years ago
Some of the questions you are asking , you are asking as if you are on the ADMIN side. I need help with defending these points because I am in the labor student group. For example: #2, I came up with the real situation in some schools especially when it c...
8 years ago
go to their AP class...^^
8 years ago
It is the answer is 14 + 10x ?
8 years ago
China
8 years ago
I meant 6y^2. Now I see where I went wrong.
7 years ago
cong nghe 4.0
7 years ago
(d) Determine the pH of a partially dissolved solution of phosphorous acid at a concentration of 0.0025 mol/L and a volume of 50.0 mL. (e) What is the concentration of OH ions in this solution?
4 years ago
Aaaaaa
3 years ago