Questions Asked on
January 3, 2010

science
Why might a plastic rod that contains a large number of electrons not have a static charge?
asked by rebecca 
Chemistry
A balloon originally has a volume of 4.39L at 44 C and a pressure of 729 torr. What temperature must the balloon be cooled to to reduce its volume to 3.78L at the same pressure? (A) 38 C (B) 72.9 C (C) 0 C (D) 546 C (E) 273 C Is the correct answer (E) 273
asked by Anonymous 
Chemistry
A sample of H2 gas (12.28 g) occupies 100.0 L at 400.0 K and 2.00 atm. How much volume will a 9.49 g sample of H2 occupy at 353 K and 2.00 atm? a. 68.2 L b. 54.7 L c. 147 L d. 109 L e.77.3 L Is it a. 68.2 L?
asked by Anonymous 
grammar
give the abstract noun for: a) worm: wormthness b) brilliant: brilliance c) accurate: accuracy d) hot: hotness e) merry: married f) stupid: stupidity g) late: lateness h) secure: security plz help to correct these answers thanks
asked by Sehr 
Chemistry
A sample of helium gas initially at 37.0 degrees C, 785 torr and 2.00 L was heated to 58.0 degrees C while the volume expanded to 3.24 L. What is the final pressure in atm? a)1.79 b)3.21 c)0.681 d).517 e)none of the above please explainI need to know how
asked by Coug 
Chemistry
The number of Pb atoms per unit cell
asked by Rony 
AP Statistics
Of all U.S. fourth graders, 71% are assigned mathematics homework three or more times per week. If 5 fouth graders are randomly selected to be checked for this frequency of homework assignment during a randomly chosen week, find the probability that A.)
asked by Laura 
Chemistry
What is the molecular weight of a gas if a 15.0g sample has a pressure of 836 mm Hg at 25.0 degrees C in a 2.00 L flask? a)167 b)1.35 c)176 d)11.1 e)none of the above Please explain... I need to understand how to do this. Thanks.
asked by Coug 
Physics
A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of vi = 20 m/s. The cliff is h = 53 m above the water's surface, as shown below. (a) How long does it take for the stone to fall to the water? (b) With what speed
asked by Trisha 
chemistry
Which noble gas would be expected to show the largest deviations from ideal gas behaviors, He, Ne, Ar, Kr, or Xe? Would it be He? I'm not sure how one would determine this.
asked by Anonymous 
Math
Two parallel lines cut by a transversal can create all the following types of angles except A. Alternate interior angles B. Alternate exterior angles C. Corresponding angles D. Complementary angles
asked by S 
Lesson 4 Poetry, Part 1
1. Walt Whitman’s excerpt from Song of Myself can be considered an expression of A. populism. C. imagism. B. romanticism. my answer D. conventionalism. 2. Which one of the following poems has the rhyme scheme AA BB CC DD . . .? A. “since feeling is
asked by ari 
Math
Two triangles are similar. The measure of the shortest side of the first triangle is 12 and the measure of the shortest side of the second triangle is 5. If the longest side of the first triangle measures 15, what is the measure of the longest side of the
asked by S 
Physics
I found the first three parts of the question but I can't figure out part d. The instruments attached to a weather balloon in the figure below have a mass(m) of 5.5 kg. The balloon is released and exerts an upward force(F) of 109 N on the instruments. (a)
asked by Sasha 
science
whats the difference between a conductor and an insulator? b) what is an example of a conuctor and an insulator?
asked by rebecca 
Chemistry
The van der Waals equation for real gases recognizes that (A) the molecular atrractions between paritcles of a gas decreases the pressure exerted by the gas (B) the nonzero volumes of gas particles effectively decrease the amount of "empty space" between
asked by Anonymous 
Trigonometry
How do you know when to add k(2pi) or k(pi)? What's the difference? Also, for this problem, why are you supposed to use k(2pi/5) for the solutions, assuming that there is no domain? 2sin^2(5x)+sin(5x)1=0 Thank you!
asked by Anonymous 
Chemistry
If 3.21 mol of a gas occupies 56.2L at 44C and a pressure of 793 torr, what volume will 5.29 mol of this gas occupy under the same conditions? (A) 61.7 L (B) 30.9 L (C) 14.7 L (D) 92.6 L (E) 478 L is it d, 92.6 L?
asked by Anonymous 
BIO
what is the relationship between snails and Elodea? My answer is that Elodea provides Oxygen for the snails. Is my answer correct? If not please help me.
asked by Anonymous 
science
Why might a plastic rod that contains a large number of electrons not have a static charge?
asked by rebecca 
science
Why might a plastic rod that contains a large number of electrons not have a static charge?
asked by rebecca 
algebra
Hockey teams receive 2 points when they win and 1 point when they tie. One season, a team won a championship with 53 points. They won 10 more games than they tied. How many wins and how many ties did the team have? How many wins did the team have?
asked by Mike 
math
Two parallel lines cut by a transversal can create all the following types of angles except
asked by sabrina 
Physics
Suppose a 68kg boy and a 40kg girl use a massless rope in a tugofwar on an icy, resistancefree surface. If the acceleration of the girl toward the boy is 3.0 m/s^2, find the magnitude of the acceleration of the boy toward the girl.
asked by Sasha 
math
How many integers values of x are there so that x, 5, and 8 could be the lengths of the sides of a triangle?
asked by sabrina 
Math
In ΔABC, m∠C = 118 and m∠B = 44. Which is the shortest side of the triangle A. AB B. BC C. AC
asked by S 
Physics
A shell is fired from the ground with an initial speed of 1.61 multiplied by 103 m/s at an initial angle of 39° to the horizontal. (a) Neglecting air resistance, find the shell's horizontal range. (b) Find the amount of time the shell is in motion. For
asked by Michael 
math
Two parallel lines cut by a transversal can create all the following types of angles except
asked by sabrina 
Trigonometry
How do you verify the equation is an identity? Tan^2xtan^2y=sec^2xsec^2y and, how do you factor and simplify, cscx(sin^2x+cos^2xtanx)/sinx+cosx
asked by Jasmine 
chemistry
A gas bubble with a volume of 1.0 mL originates at the bottom of a lake where the pressure is 3.00 atm. Calculate its volume when the bubble reaches the surface of the lake where the pressure is 695 torr , assuming that the temp doesn't change. I got 0.003
asked by Anonymous 
Art
I don't get this question on my textbook. "List at least three ways Velazquez used space to intrigue the viewer in Las Meninas." I'm not too sure on how I describe the space.
asked by Anonymous 
Literature
3. The Kellers allow Annie and Helen to live alone for two weeks because they a. believe that their interference creates too many obstacles b. trust Annie to care for Helen as they would c. fear that Helen will otherwise have to enter an institution d.
asked by mysterychicken 
chemistry
what is the initial temperature (in degrees C) of a system that has the pressure decreased by 10 times while the volume increased by 5 times with a final temperature of 150 K? a)27 b)75 c)300 d)198 e) none of the above Please explainI need to know how
asked by Coug 
Stat
Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability it takes 10 circuit boards to be inspected before a defective board is found is
asked by Max 
statistics
the average of final exam is 64, the standard deviation is 7. If the teacher set a rule that 1/4 of students !@#$%^&ceive the poor grades should stay after class. lower than what mark should the students stay in school? does anyone know how to solve this?
asked by K.T 
GRAMMAR
PLEASE CORRECT THE ANSWERS ACCORDING TO THE QUESTION BELOW. WRITE ONE COMPLETE SENTENCE FOR EACH WORD TO SHOW CLEARLY HOW IT DEFFERS IN MEANING FROM THE OTHER WORD IN THE GROUP. 1)price: the price of the apple in the market was $10 per Kg. 1)prize: I got
asked by Sehr 
math
Two parallel lines cut by a transversal can create all the following types of angles except
asked by sabrina 
physics electricity
An electric force moves a charge of +1.65 multiplied by 104 C from point A to point B and performs 6.40 multiplied by 103 J of work on the charge. (a) What is the difference (EPEA  EPEB) between the electric potential energies of the charge at the two
asked by alex 
Physics
What is the weight (in Newtons) of an object with a mass of 25 kg on the surface of the Earth?
asked by Aly 
Trigonometry
How do you factor and simplify, 1sin^3x and sec^4x2sec^2xtan^2x+tan^4x
asked by Taylor 
microeconomics 3
. As tradition has it, Santa Claus is coming on the 5th of December from Spain to the Netherlands to bring gifts to Dutch children. Help is needed to distribute the gifts for which the Santa Claus committee is hiring helpers, socalled Zwarte Pieten. There
asked by James 
Trigonometry
cot^2(3x)sin(2x)sin(2x)=0 2sin^2(5x)+sin(5x)1=0
asked by Anonymous 
Math
ok so i'm kinda sort of confused... I had this for a equation X^2 + 4X  1 = 0 and then I was like zero??? zero... really zero... hmm... X^2 + 4X  1 = dy ???????? That zero does represent when Y equals zero correct??? this allows us to solve for X
asked by Kate 
physics
An object of mass 5.00 kg is attached to a spring with a force constant of 300 N/m. It is oscillating on a horizontal frictionless surface with an amplitude of 2.00 m. A 8.00 kg object is dropped vertically on top of the 5.00 kg object as it passes through
asked by Liz 
math
Two parallel lines cut by a transversal can create all the following types of angles except
asked by sabrina 
carpentry
list types of abrassive material.
asked by TOM 
English Grammar
need help with the editing of this paragraph. Various people believe that the building of an Empire provides secure natural resources from taking over territories claimed by other countries. This UltraNationalism can actually begin a war from attempts
asked by Anonymous 
Chemistry
What are the raw materials for polyethene and polystyrene?
asked by Question 
algebra
The perimeter of a rectangle is 92m. The length is 4m more than twice the width. Find the dimensions.
asked by Mike 
Trig
Are any of these three problems identities? 1. Cos^2xsin^2x=12sin^2x 2. Sinxsecx=cosxcscx 3. Sec^4xtan^4/sec^2x=1+sin^2x If so, how can you conclude that any of them are identities?
asked by Melody 
English
What cultures and relgion affected the ottoman empire during its expansion? did people from the ottoman empire convert and practiced religions and cultures from the areas they expanded to.
asked by jake 
Ela
can you proof read. Canadians are the second larger consumers of water in the world. The average Canadian uses 326 litre's of water a day for baths, showers, toilet flushing, drinking, laundry , and lawn watering. In France, the average is 150 litres a
asked by anu 
math
In ABC, mB > mC and mC > mA. Which side of ABC is longest?
asked by sabrina 
Science
In __, the amplitude of the carrier wave is changed to transmit information; the frequency is not changed. In __, the frequency of the carrier wave is changed __ phones and __ phones use radio waves to transmit signals. __ use electromagnetic signals from
asked by Michael Jones 
Physics
A forward force of 8X102 Newtons is applied to a 1.9x103 kg car. If the friction force on the car is 6x102 Newtons what is the acceleration of the car in units of m/s2?
asked by Aly 
5th grade
8 1/4  4 5/6
asked by dominique 
Math
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 2 5 5 3 0 8 2
asked by Kate 
english
i need help picking the right theme A)oppression B)discrimination C)obstacles D)injustice plz asap thankyou
asked by sana 
chemistry grade 10
i don't really get the idea of what a poly atimic ions is. i couldn't understand the meaning from my textbook. can u plz explain it to me. thanks alot!!!
asked by shaje 
10th grade
I am writing an essay on things from the natural world and I need to think of categories for the things in order to write paragraphs. The sun, moon, sea, and sea shore are all things from the natural world. What one smaller category do they fit in?
asked by Emily 
history
Whats the success and failure of cuban revolution?
asked by eri 
Bio 100
Provide at least two ways the use of this biotechnology could benefit socity and two ways this biotechnology could be harmful. My topic is agricultural and environmental uses.
asked by Rayna 
Chemistry
How do you calculate the molar masses for Strontium Phosphate and Chromium(III)Nitride using significant figures correctly?
asked by Katie 
Social Studies
Compare and contrast Postclassical feudal systems in Japan and Western Europe, in terms of social classes, gender roles, and rules/laws.
asked by Anon 
Literature
The water pump is shown and mentioned frequently in The Miracle Worker. What does it represent? I know that this is Helen's favorite place, and it's where she finally learns the meaning of words but I can't get further than that...I have to write an
asked by mysterychicken 
10th grade
find the slope of the line that passes through 3 1/2,2 and 1,1/2
asked by hector 
Math
In ABC, mB > mC and mC > mA. Which side of ABC is longest? A. AB B. AC C. BC
asked by S 
art
Also, i don't get this question. "In what two ways were Hieronymus Bosch's and Pieter Brugel's paintings meant to be viewed?"
asked by Anonymous 
Business DecisionMaking
I am trying to figure this out for my business decisionmaking class, it is to be a power point presentation 3 pages; sounds simple but I am totally lost. The first slide is to explain how statistical Tools can be valuable to a business, slide 2 specific
asked by Brenda 
English
What is the usage error in the following sentence and what is the correct usage? They formally lived in Detroit.
asked by Kagome 
american history
what was the results of the war of 1812?
asked by amy 
Chemistry Diffusion
Will gases that have similar molar masses have similar rates of diffusion?
asked by Anonymous 
history
event in history that relates to the quote its never to late to be what you might have been
asked by king 
English
I am a preschool teacher who has been observed by the principle who was never been supportive anyway reacently I got her feedback and it was negative due to the fact that she wanted me to use differentiated instructions during and she just observed me
asked by caro 
chemistry
i have difficulties in this question.any help would be appreciated. 1) 2No(g)> N2(g)+O2(g) at 1800K,K is 8.36*10^3.what concentration of NO(g) is in equilibrium with N2(g) at a concentration of 0.0500mol/liter and O2(g) at a concentration of 0.500
asked by hrithik 
ELA
can you proof read When we turn on the top,we expect an abundant supply of clean, fresh water to flow out. Having one of the world's largest supplies of fresh water, these expectations may usually be met in Canada . However,in many other countries, water
asked by anu 
arts and culure
I need a clearer writing image of what this means and I know it sounds crazy...but, I am butting my head around this, and need to get started with my assignment?..."the social role of the arts in early Chinese and Japanese civilizations." How does one
asked by maryk 
Ela
can you proof read please The first time most Canadians really started to think about the safety of its water supply was in 2000, when seven people in walkerton ,Ontario , died from drinking tainted tap water. Thousands more was taken ill. All of a sudden,
asked by anu 
psychology
why is scientific method is very important to psychology
asked by lucila 
English
Hello everyone! I study English and my task is to find 3 activities( On anything, they don't have to be connected)which i can use in the classroom with my learners (58th graders).The point is that these activities have to be creative (f.e.they have to
asked by sweru 
Physics
A single 11 Newton force is applied to an object of mass 19 kg. What is the acceleration of this object in m/s2
asked by Aly 
Math
I haven't done factoring in ages I'm trying to factor this X^2  2X + 8 If i remeber correctly sense the leading coefficent is 1 the factored form is in this format (XA)(XB) which would give you X^2 AX  Bx + AB or simply X^2 (A+B)X +AB so then in my
asked by Kate 
history
what is the meaning of this quote you reap what you sow and how can i make a history event out of it thanks
asked by king 
geology
Is there any way I can send you my final to look at and see if I am on the right track? I asked my instrutor to look at it, but her reply was she didn't want to see it until it was due. Any help would be greatly appreciated. Thank you.
asked by roxanne 
English
What are some ultranationalistic empires that lost their culture and religon through their expansion...like coverting
asked by jake 
GRAMMAR
PLEASE CORRECT THE ANSWERS ACCORDING TO THE QUESTION BELOW. insert the prepositions in the following sentences : 1) he was christened Stephen UNDER his father,buthe answer IN the name of George. 2)He has not been heard since for years no one knows what has
asked by Sehr 
English
Can you check the following sentences,please? 1) The sight of nature breaks (OR breaks in upon) the poet's mood (OR state) of loneliness which characterized the beginning of the poem 2)Nature is presented as a living presence (OR being), according to a
asked by Franco 
earth
limestone and marble are both used in sculpting. Limestone become marble under heat and pressure. Classify each rock and tell which would be harder to sculpt
asked by Dominic 
English
1) The albatross as well as the spirits, the angels and the sea monsters are other supernatural elements (Is it correct or is it better to say "Other supernatural elements include...)? 2) The poet makes order (is it correct??) in a world which was
asked by Franco 
Algebra 2
"The Discriminant; Equations in Quadratic Form" Solve over the complex numbers. 1/e + 1/(square root of e)  6 = 0
asked by Mary 
trig
how do i find cosX if i am given sin x= 4/5 and tan
asked by anna 
disease
HELP What are the top ten plagues in history?
asked by Jackie 
Trig
Are any of these three problems identities? 1. Cos^2xsin^2x=12sin^2x 2. Sinxsecx=cosxcscx 3. Sec^4xtan^4/sec^2x=1+sin^2x If so, how can you conclude that any of them are identities?
asked by Melody 
science grade 10 chemistry
do you know any website that helps explain how the naming of ionic compounds and etc work, and like naming acids. please help.
asked by shaje 
algebra
2x+1/x+1 (is less than or equal to) 2 what is the solution of the inequality?
asked by nyet 
algebra
(x^2)3x=28 x=?
asked by nyet 
GRAMMAR
PLEASE CORRECT THE ANSWERS ACCORDING TO THE QUESTION BELOW. WRITE OUT THE FOLLOWING SENTENCES USING THE CORRECT WORD FROM THOSE IN THE BRACKET. 1)[THEY,THEIR] Their parents(has,have) have been to indonasia. 2) we shall be [go,going] going home [by,bye] by
asked by Sehr 
English
1)The ship reminds of two wellknown medieval themes: the Ship of the Fool and the Ship of Death (Is remind correct or is it better to use is derived from??) 2)During the ballad (better in the/within the ballad??) are also present (and not presented) such
asked by Franco 
Physics
Three forces are applied to a mass. Force 1: +3 Newtons Force 2: 3 Newtons Force 3: +2 Newtons What is the net force in Newtons on the mass?
asked by Aly 
social studies
i don't know where king charles the first gave the puritans a charter to setle in
asked by meghan 
carpentry
What is abrassive.
asked by TOM 
English
1) The wedding guest hadn't chosen to hear the mariner's tale 2) The storm changes the course of the ship (it it correct to use "course") and is represented as a huge bird (is as correct?) 3) The flowers help (better enable??) the poet to think about his
asked by Franco 
English
Which word would be correct in the following sentences and why would it be correct? 1. We were very nervous on Friday (because or on account of) we said that we'd present our report to the class then. 2. (As or Like) I always say, your are what you don't
asked by John 
anglosaxon,beowulf
creat a narrative poem in the Anglo Saxon style of Beowulf, can someone please help me
asked by amanda 
carpentry
Explain the number behind the abrasive sheets
asked by TOM 
AIU
Part 1: Using the Library, web resources, and/or other materials, find a recordbreaking temperature (in degrees Celsius) for a town or city in a country other than the United States. Include the name of the town and country along with the temperature, and
asked by Feguens Mileon 
english
i need help findng the perfect theme and moral of the novel "we are all welcome here" by Elizabeth Berg As soon as possible Please Thankyou very much!!!!! :) :) :)
asked by sana 
MATH (expansion)
Which of the following represents the fourth term of the expansion (6x^3+(1/2)y)^6?
asked by Anna 
Earth Science
Two meanings for the horizontal lines on the geologic History NYS chart.
asked by Ann 
Advanced Biology
Certain_________ block prokaryotic ribosomes, but not those of eukaryotes. Certain proteobacteria________ nitrogen. The earliest life form may have been a_________ that obtained energy from inorganic compounds. The answers to these fills in a crossword
asked by Jennifer 
English
1) The poet's initial mood Or state? of solitude turns into happiness 2) The flowers are introduced/described in the first stanza ( can you use PRESESENTED???) 3) Nature is presented as something positive, as a friend and a comforter to man (is it correct
asked by Franco 
Physics
A object of mass 2 kg experiences an acceleration of 4 m/s2. What is the net force on the mass in Newtons?
asked by Aly 
Carpentry
Explain the number behind the sheets
asked by TOM 
Algebra
(2x^3)(14x^2)+12x=0 x=?
asked by Kimba 
calculus
write a power series for e to the 2x and find the interval of convergence
asked by bob 
Precalculus
Solve the inequality and sketch the solution: 3≤ 2(x+4)< 14
asked by Trevor 
English
1) The albatross as well as the spirits, the angels and the sea monsters are other supernatural elements (Is it correct or is it better to say "Other supernatural elements include...)? 2) The poet makes order (is it correct??) in a world which was
asked by Franco 
math
whats the answer to 7(2x4)
asked by jesileigh 
math
fns he slop o theline tat psses through each par of oints (4,3) (3,8)
asked by Anonymous 
English
what are some goals of most empires
asked by jake