Questions Asked on
May 20, 2010

physics 6a
A potential difference of 4.75 kV is established between parallel plates in airf the air becomes ionized (and hence electrically conducting) when the electric field exceeds 3.00×106 V/m, what is the minimum separation the plates can have without ionizing
asked by Sally 
Chemistry help please!
Suppose K= 4.5x10^3 at a certain temperature for the reaction : PCl5 PCl3+ Cl3, what must be the concentration of Cl2 under these conditions? Chromate ion, Cro4^2, is used as a qualitative test for lead(II) ion, forming a birght yello precipitate of
asked by Ashley 
Physics
your electronics friend needs a 20ohm resistor but has only 40ohm resistors. He tells you that he can combine them to produce a 20ohm resistor. how?
asked by Meg 
Chemistry
What are the equations for the following? Positron emission from silicon26 and Sodium22 undergoes electron capture I really don't get it Thank you
asked by Aubrey 
Algebra102
A standard deck of cards is shuffled and one card is drawn. Find the probability that the card is red or a jack.
asked by NatoshaMarie 
chemistry
The question is how many kilojoules are required to melt 24g of ice at 100 degrees celsius? Can you please correct me if im wrong. ( Which I'll probably will be ) I did: 24 x 333= 800kj
asked by evelyn 
Healthcare Finance
Suppose the hospital pays out $300,000 in dividends. A stockholder receives $10,000. If a stockholder's tax rate on dividends is 15 percent, what is the after tax dividend?
asked by Lashunta Battle 
chemistry
What type of intermolecular forces would you expect to find between molecules of H2O? of BrCl? of hexane (C6H14)?
asked by Ariana 
m/c
Every night before closing, the night manager counts the amount of money in the cash register. The amount of money in the cash register is an example of what level of data? a) interval b) nominal c) ratio d) ordinal
asked by Thara! 
CHEMSITRY
IN THIS EXPERIMENT YOU FILL A PREFROM WITH WATER AND PUT A DRINKING STRAW INTO THE PREFROM AND USE CLAY TO SEAL THE OPENING. It is important to recall that when you first tried it, you were unable to drink, but a small amount of water entered the straw.
asked by POPCORN 
English
My class and I have to write a az story. It can be about anything. AZ means that each sentence has to start with each diff letter from the alphabet. So the first sentence would start with A; second sentence would start with B, etc. I want to do a story
asked by Sara 
10th grade
the circle is circumscribed by the pentagon as shown (not drawn to scale). If QZ=10, YX=9, XW=9, UW=17, and SU=10, find the perimeter of the pentagon.
asked by josh 
science
a balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa?
asked by Brad 
English
;A; Help writing a "topic sentence" about the dominican republic food?&& iwould need help on more of my essay .__. unfortunately theres no comment back button so idont know how i can do that either.
asked by Danii 
HELPPPPPPP (TRIG)
solve the equation 2 sec x tan x = cot x for the interval 0 to 360 please:)
asked by HELPPPP 
chemistry
Aluminum nitrate and ammonium chloride react to form alluminum chloride, nitrogen, and water. what mass of aluminum chloride is present after 43.0 g of aluminum nitrate and 43.0 g ammonium chloride have reacted completely? Please Help
asked by amanda 
math just need someone to check and make sure this
The Office Jet printer can copy Janet's dissertation in 10 min. The Laser Jet printer can copy the same documents in 8 min. If the two machines work together, how long would they take to copy the dissertation? 10*8=80 80/18= 4.4 so it would take 4 min. is
asked by Marie 
Chemistry Help!!
Determine triangle H when 10g of HN3 are reacted in the following reaction: 4HN3 + 2NO2 arrow pointing > 2H202 + 7N2 (note: triangle Hf for HN3 = +267.1 kJ Equation? Answer? Thanks
asked by Anonymous 
human growth and developmnet
Perry ages 80,tends to put lot of salt on his food even when the food has already been salted during cooking.What is the most likely reason for Perry's increased desire for salt? A) older adults require more sodium,which makes him crave salt. B)Parry has
asked by vedrana 
eco
Imagine that you are a business owner Choose whether to hire a new person in the marketing department or upgrade your computer system Each choice requires the same amount of investment?
asked by Anonymous 
Algebra102
A pair of dice is rolled~ A possible event is rolling a multiple of 5. What is the probability of the complement of the event? A. 2/36 B. 12/36 C. 29/36 D. 32/36
asked by NatoshaMarie 
Honors Chemistry
"Would it be possible to have an addition polymer synthesized from a monomer that has only single bonds? Why or why not?" ==> I know that an addition polymer can only be synthesized from a monomer that has double bonds, but my textbook did not explain why.
asked by Emily 
algebra 1
one side of a triangle is 2cm shorter than the base The ofther side is 3cm longer than the base what lengths of the base will allow the perimeter to be greater than 19 cm?
asked by Sulynn 
Physics
(1)A motorist is traveling at 15 m/s when he sees a deer in the road 44 m ahead. If the maximum negative acceleration of the vehicle is −6 m/s2, what is the maximum reaction time of the motorist that will allow him to avoid hitting the deer? Answer in
asked by oh you know 
Chemistry
(True or False) Wax is nonpolar, yet it exists as a solid at room temperature. Its solidity is best explained by the presence of dispersion forces.
asked by Ariana 
Math
What is the equation for lateral area of a rectangular prism?
asked by Arleen 
chemistry
Which halfreaction represents reduction? Choose one answer. a. Cu → Cu^+2 + 2e b. Fe^+2 → Fe^+3 + 1e c. Ag^+1 + 1e → Ag d. Al → Al^+3 + 3e
asked by Tim 
Chemistry
What mass of methane must be combusted to produce 1.00 x 10^3 kJ of heat? could someone write the equation and the answer? Thank You.
asked by Anonymous 
Biology
How have guppies adapted over time to their freshwater environment? thanks:)
asked by Rebekah 
PHYSICS
A baby bounces up and down in her crib. Her mass is 13.5 kg, and the crib mattress can be modeled as a light spring with force constant 682 N/m. If she were to use the mattress as a trampoline—losing contact with it for part of each cycle—what minimum
asked by gill 
algebra
/ / (2X+12) DEGREE  / / HOW DO I FIND X IN ORDER TO FIND THE DEGREE OF THIS ANGLE
asked by billy 
algebra
/  WRITE AN EQUATION TO FIND X I'M LOOKING FOR THE DEGREE OF THE TWO ANGLES /(2X+12) a  / / (6X+16) b  /
asked by billy 
Chemistry (Making sure
For how many kilojoules are required to change 44.0g of ice at 12.0 degrees C to water at 85.0 degrees C? Would this be correct: Step 1: (2.10 J/g degrees C)(44g)(12 degrees C) = 1108.8J = 1.1088kJ Step 2: (44g)(1mol/18g)(6.01kJ/mol)= 14.6911kJ Step 3:
asked by Anonymous 
Math
The side lengths of a right triangle are each an integral number of units. If one of the legs is 13 units, what is the perimeter of the triangle? Thanks ~Zach
asked by Zach 
algebra
Solve 2x 4y =4 and 2x2y =0
asked by Anonymous 
algebra
5/y3=y+7/2y6+1= an equation with extraneou solution. I need help with this problem
asked by angelia 
English
Can you check these sentences for me? Thank you in advance. 1) Eveline belongs to a collection of fifteen stories which was completed in 1904, but not published until 1914, under the title “Dubliners”. 2) As the title suggests, the stories are set in
asked by Franco 
English
I forgot to include the following sentences. I hope you can look at them as well. 8) The second theme, epiphany, describes a sudden revelation in the everyday life of the characters due to (or caused by?) a trivial gesture, an external event or a bad
asked by Franco 
define!
i did one of this online test...but i neva got the mark yet...but wat does, ""Question Scoring: disabled until after Due Date """
asked by Thara! 
posting box
only half my box comes up
asked by kathy 
HELPPPPPPP (TRIG)
find, to the nearest minute, the solution set of 1 sin x = 3 cos^2 x over the domain 0 degrees to 360 degrees
asked by HELPPPP 
race and ethnicity
what can be the best way to explain the differences between exclusion and segregation?? Thanks
asked by rose 
HELPPPPPPP (TRIG)
4cos(x) 5=6sec(x)
asked by HELPPPP 
World History
The military conquest of the assyrians were made possible by their A. powerful navy B. Efficient military organization and warlike spirit C. alliance with Egypt D. Country's natural barriers, which protected them from invasion by outsiders The famous
asked by Amber 
math
How do you find the discount of Regular Price $38 Discount 10%
asked by penelope 
CHEMISTRY
Okay, my teacher showed me in class this container. It had a balloon in the shape of a hand attached to the rim of the jar and hanging upside down. There was little drops of water in the jar, and my teacher said this was a good observation. She told me to
asked by ~anonymous 
Economics
What will be the outcome to global economics and the condition of man given increasing global birth rates and why?
asked by kaley 
Algebra number patterns
Predict number in pattern
asked by Anonymous 
Math help please!!!
Factor completely 3p^2q + 9p^2q^2  12p^2q^3 I have done the following: 3p^2q(1+3q4q^) but then i get stuck..not sure if that's the final answer..
asked by help 
algebra
I am not sure how to multiply and simplify this problem: Sqrt 50 * Sqrt 54
asked by Kat 
math
Train A is 12 mph slower than train B. Train A travels 230 miles in the same time it takes train B to travel 290 miles. Find the speed of each train.
asked by Marie 
chemistry
An equilibrium mixture contains N2O4, (P= 0.30 ) and NO2 (P= 1.1 ) at 350 K. The volume of the container is doubled at constant temperature. Calculate the equilibrium pressure of when the system reaches a new equilibrium. Calculate the equilibrium pressure
asked by Anonymous 
Kaplan university
describe how something is learned using classical conditioning. Be sure to identify the unconditioned stimulus, the conditioned stimulus, the unconditioned response, and the conditioned response. For the second example you will use the theory of operant
asked by Amber 
history
What social, political, and economic changes pulled the North and the South farther apart? What was the final determining factor that led to Southern secession? What social and economic changes discussed in previous chapters fueled sectional conflict?
asked by Gail 
History
What is a more formal and polished word for split? In this sentence: The issue of imperialism split the Americans during the...
asked by Anonymous 
Algebra
9x + 2 = 13 divided by 5
asked by AJ 
trig
find, to the nearest minute, the solution set of 4 cos x + 5 = 6 sec x over the domain 0 degrees which is less than or eaual to x which is less than 360 degrees
asked by Clarkney 
trig
find, to the nearest minute, the solution set of 1 sin x = 3 cos^2 x over the domain 0 degrees to 360 degres
asked by Clarkney 
trig
ind, to the nearest minute, the solution set of 4 cos x + 5 = 6 sec x over the domain 0 degrees
asked by Clarkney 
Math
What's the formula for this (x+a)^n were x is a variable a is a constant and n is some power that can change example (x+5)^2 (x+5)^3 (x+5)^4 what's the general formula?
asked by Susan 
geometry
ABC is an isosceles triangle inscribed within a circle of radius 4,such that side BC passes through the center.What is the length of the arc segment AC?
asked by Amanda 
English
Thanks for your last corrections. Can you check these sentences too? 1)Particular attention is paid to the analysis ad recollection of the impressions that an outside event causes in the inner world of the characters. 2) The facts are presented from
asked by Franco 
N/A
I'm just needing a question to be ask: If you were head of health informaton management department at a hosptial later an FBI agent came to you with a search warrant and place it in your hand. And he ask to speak with you about the hopital's health
asked by CC 
english
iNeed help getting a 200 word essay done TONIGHT. I'll be away from the computer for about ten minutes because ihave to pick up pans for a tres leches cake that i have to provite with the essay. Its on the dominican republic foods. =___= as in the last
asked by Danii 
math
Train A is 12 mph slower than train B. Train A travels 230 miles in the same time it takes train B to travel 290 miles. Find the speed of each train.
asked by Help Me Pleeease 
Physcial Science
What are the significant similarities and differences between AC and DC? What determines which is better for a particular application?
asked by John 
chemistry
how much will be produced from 45.0 grams of nitrogen gas?
asked by cassie 
math
Algebra For questions 15, find the value of the variable. 1. x = (1 point) 2. y = (1 point) 3. x = (1 point) 4. x = (1 point) 5. (1 point) x = , y = , b = 90 x = , y = 3, b = 95 x = , y = 2, b = 90 x = , y = , b = 130 In Exercises 68, decide whether the
asked by Sasha Z. 
math
A square has a perimeter of 24cm. If a diagonal line is drawn through the square in such a way that two identical right triangles are produced, what is the length of the diagonal line?
asked by Linda 
Math
A square has a perimeter of 24cm. If a diagonal line is drawn through the square in such a way that two identical right triangles are produced, what is the length of the diagonal line
asked by Jackie 
Math
A ship carries exactly 10 different signal flags. If each possible combination and ordering of 4 of these flags connotes a specific message, how many signals can be sent with these flags, taken 4 at a time?
asked by Felicia 
Math
Estimate the number of personally constructed greeting cards possible at a machine if there are 12 designs, 30 messages, 18 closings, and 10 different paper stocks on (1 + 1)n, which to print the card. Indicate how you made your estimate. How valid was
asked by Felicia 
History/English
Is the world polarized used correctly: The issue of imperialism polarized the Americans during the late 19th and early 20th centuries over different beliefs...
asked by Anonymous 
Physical Science
What do atoms forming the two bond types have in common(an ionic and covalent bond)?
asked by John 
happyday!
May many blessings shower down upon all those who are getting their diplomas. For those of you who are not there as of yet, the fulfillment that you feel on one day validates all of the assignments that you have done. I am walking down the aisle to get my
asked by CongratsGrads! 
crt 205
Why and how could you apply critical thinking when evaluating each of the following: • Articles • Advertising • Media • Conversations
asked by holly 
math
What is the coefficient of the term of degree 4 in this polynomial?4x8 + 5x4  2x3 + x2  1
asked by jj black 
math 116
64x=6x8x+10
asked by tony r 
math 116
9/5+4/5x=47/20+5/4x+3/4
asked by tony r 
algebra
2y+1/y^2Y6= 2y+1/(y+2)(y3) check this
asked by Keaton 
teacher aide
What type of teaching uses formal lectures?
asked by shelia 
algebra
One paving machine can surface 1 km of highway in 6 hours. Another can surface 1 km of highway in 8 hours. how long would it take to surface 1 km of highway with the two machines working together?
asked by Steven 
hcs514
Can the formal and informal organization coexist within the same organizational structure? Why or why not?
asked by kisha 
Algebra
Thhe members of a soccer team are to share the $540 cost of a banquet. When 5 students are unable to attend the cost per student was $1.50 greater. How many students attended the banquet?
asked by Steven 
poetry
After completing the required readings for this week, discuss how you see the theme of creating art developing in the different stories and poems.
asked by Anonymous 
Algebra
An elevator went to the do of a 180m building, stayed for 1 minute, then came down. The total time was 3.5 minutes. If the speed of the elevator when it went up was 1 m/sec less than when it came down, find both speeds (up and down).
asked by Steven 
Geometry
Hi, For one part of my problem I have had to find the equation of a straight line that passes through two points, I have done this but now i need to determine whether a new point lies on this line by using the equation from the first part, how would I do
asked by Rich 
ENGLISH
I am having a hard time understanding key points to write my essay on. Can I get some opinions on why it is important to speak your mind?
asked by Amber 
geometry
ABCD is a square with area =625 in square. The circumfrence centered in circle is circunscribed by ABCD. Find the approximately value of the shaded area. Use pie = 3.14
asked by Sonia 
ChemistryIs this correct?
The concentration of NaOH is normally in the range of 36 M when they peel potatoes and soak them in a solution of NaOH , remove them and spray them off. If I have 45.7 mL of 0.500M of H2SO4 required to react completely with a 20.0 mL sample of NaOh. What
asked by Sara 
Math
I'm doing homework and stuck on this question: What percent of 3 1/3 is 3?
asked by Leah 
Algebra II
Growth and Decay Dave bought a new car 8 years ago for $8400. Tobuy a new car comparably equipped now would cost $12,500. Assuming a steady rate of increase, what was the yearly rate of inflation in car prices over the 8year period? Is there an equation
asked by Anonymous 
Chemistry
Calculate (triangle H) for the complete combustion of 10.0g benzen. Equation? and could someone give me the answer?
asked by Anonymous 
science
vo+hcl=vocl+h2o
asked by eddie 
chemistry
when you are given two half reactions and you are told to calculate net E^O, would you find the voltage for each reaction and subtract the two to get the answer?
asked by Anonymous 
calculus
Let be a function that satisfies
asked by m naveed 
math
what is x + 4= 16
asked by cece 
Math 12
The mean and standard deviation of a set of data are two measurments that describe the data. A certain student has written 8 out of 10 unit exams, which are equally weighted. The student misses the ninth exam and receives a score of 0. However, for the
asked by Leigh 
Math
integral [((log(1+x))/(1 x^(2)))] .... limits: [0,1]
asked by Lalo 
Chemistry
Is the formula for benzene : C6H6 ?
asked by Anonymous 
To Danii
I cannot read your 11:55 post. Can you repost it here?
asked by Jen 
English
I'm writing a report by interpreting myself as a Jew during the holocaust and I have to write a journal entry about 8 to 10 sentences describing the time spent on the way to my concentration camp. I was wondering, how far it was from Holland to Auschwitz?
asked by Jennifer 
Geometry
I need to find the dimensions of this rectangular prism. It has a volume of 108 cubic inches. The length and width of the base are identical. The height is half of the length. Can you help explain how to do this given this information?
asked by Brett 
Geometry
A rectangular prism has the following characteristics. It has a volume of 71 cubic inches. The sum of the three lengths is 14. The width is 2 less than the length. The length is 5 more than the height. What are the dimensions of this rectangular prism?
asked by Brett 
Geometry
We have a triangular prism that has the following characteristics. It has a volume of 360 cubic inches. The base of the triangle is twice the height of the triangle. The difference between the height of the prism and the height of the triangle is 4 inches.
asked by Brett 
Geometry
Need help finding dimensions of a triangular prism. It has a volume of 900 cubic inches. Two of the dimensions are consecutive even numbers. Two of the dimensions are multiples of 5. All the dimensions are less than 16, but greater than 6. All lengths are
asked by Brett 
5th grade
How do you do double dight divison
asked by Jade 
math
a vending machine takes only nickels and dimes. there five times as many dims as nickels in the machine. the face value of the coins is $4.40. how many of each are there?
asked by sally 
Growth
When do girls stop growing? Also, if a family memeber had a late growth spurt would it be more likely that their child also have a late growth spurt?
asked by Anonymous 
math(answer quick!)
_____________figures are twodimensional figures what is in the blank?
asked by da 
7th grade
what is 1.4 to the 11th power
asked by Emma 
algebra
We just learned equations & inequalities today and im so confused on how to do it!will someone help me??? 5 + 2 < 2
asked by Megan 
physics
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of 19.10 eV. The electron absorbs a 4.00eV photon. The electron immediately drops to an intermediate energy state Einter
asked by Brianna 
English
Thank you for your corrections.Can you check the very last sentences of the day, please? 1) The sound of the music coming from the street organ triggers Eveline’s flashback to the night of her mother’s death. 2) On her mother’s deathbed Eveline
asked by Franco 
Science
Is this correct? The Energy Transformation of a Slingshot: elastic PotentialKineticPotential
asked by Chris 
geometry
Draw two parallel lines on your paper. Locate four points on the paper each an equal distance from both lines. Describe the figure you get if you continue to locate points each an equal distance from both lines
asked by lori 
typhoid
How can I describe typhoid fever and its effects on the health of others?
asked by AL 92 
English
Thank you very much for your last corrections. Can you check these sentences too? 1)Particular attention is paid to the analysis ad recollection of the impressions that an outside event causes in the inner world of the characters. 2) The facts are
asked by Franco 
5th grade math
what is 6 m and 80 cm in decimal form? is it 6.08m?
asked by Anonymous 
calculus
f'(x) < 0 if x < 1 And apparently this means f is decreasing on (1, 1). I don't understand this. I know f'(x) < 0 means the function is decreasing. But I don't understand the absolute value. It means I can put 1 or 1 inside, but wouldn't it still be 1
asked by Kelly 
Math
Mrs.Ryan gave her class cupcakes. She gave half the class yellow, a third of her class chocolate and the remaining students vanilla. If 5 students got vanillia how mny students are in the class? How many got yellow? Chocolate?
asked by YArmainee 
Math
Oliver is chossing 3 of his 4 hats to take on vacation ?????
asked by Sara 
chemistry
at a deepsea station 200m below the surface of the Pacific Ocean, workers live in a highly pressurized environment. How many lites of gas at STP must be compressed on the surface to fill the underwater environmen with 2.00 x 10^7 of gas at 20.0 atm? What
asked by Billy 
Clarification
I don't get this statement. "Most cases (of typhoid fever) in developed countries are imported from endemic countries."
asked by AL 92 
social studies
What is another name for the equator?
asked by joshua 
Algebra 1
Hello. Can someone check my answers to the following Factor each of the following 1. a^2  9 My answer a^2  9 = 0 (a  3)a + 3) 2. 4a^2  4a+1 My Answer 4a^2  4a + 1 = 4a^2  2a  2a + 1 = 2a(2a  1)  1(2a  1) = (2a  1)(2a  1) 3. 72  22x + x^2 My
asked by Tamir 
business
what factors will impact your pricing strategy.
asked by jun jun 
SOCIAL STUDIES
AFTER THE REVOLUTIONARY WAR,WHAT HAPPENED TO THE COLONISTS
asked by DEEDEE 
Science
Is this correct? The Change of energy of a Slingshot: Elastic PotentionGravitational potentialpotential?
asked by Chris 
Chemistry
How are the three types of intermolecular forces similar? How are they different?
asked by Ariana 
m/c
A researcher is hired by a company to ascertain the morale of company employees. The company employs over 10,000 employees. The researcher takes a random sample of 237 employees, interviews each sampled employee, and uses the information to project the
asked by Thara! 
Math (trig)
4cos(x)+5=6sec(x)
asked by Kate 
algebra
y/4+2y=2y^2/4 check this
asked by Keaton 
ELA
Website For Grammar Lessons 6th grade????....
asked by Alina 
Trig
Find three additional polar representation of the point (3, pie over 6) given in polar coordinates,using 2 pie
asked by Sasha 
M/C
Which level of data has an absolute zero? A) nominal B) ratio C) ordinal D) interval IS IT (B)
asked by Thara! 
social studies
Definition of Horse Canal
asked by joshua 
English
I'm doing a Spanish assignment but theres no need for any spanish words, so i'll call it an English paper. I'm doing a research project on the dominican republics food and drink but idont know how to start off my 200 word essay that's due tomorrow o__o
asked by Danii 
math
3/2y3/2y+4 could you help me please
asked by Keaton 
M/C
A researcher studies the effectiveness of managers at a small company containing 46 employees. The researcher interviews every employee, gathers data, analyzes the data, and writes up a report of her findings for company management. Company management uses
asked by Thara! 
math
3/2y3/2y+4= Can someone please help with this problem
asked by Keaton 
Math
Give four word problems making and organizing list
asked by Shelly 
m/c
Which of the following refers to when a researcher gathers data from a sample and uses the statistics generated to reach conclusions about the population from which the sample was taken? inferential statistics holistic statistics conclusive statistics
asked by Thara! 
math
how do u find the volume?
asked by alissa 
chemistry
what volume of HCl gas is needed to neutralise 50 ml of 0.1M NaOH at stp?
asked by boond 
exploration
What untaped wealth does Nicaragua have? Can you help me answer this question please? yhank you
asked by natalie