Questions Asked on
January 15, 2010

chemisty
How many moles of molecules are there in 250 grams of hydrogen nitrate?
asked by mary 
Geometry
How do you go about finding the lateral area of a trianglar prism? Ex: The base of a triangular prism is an equilateral triangle with a perimeter of 42 cm. If the height of the prism is 10 cm, find the lateral area. Thanks for the help in advance
asked by Nicole 
Chemistry
Rank the following ionic compounds by lattice energy. Highest to Lowest LiCl MgO Na2O Beo Na2S
asked by Saira 
math
the scale factor for two figures is 3(new figure)to 2(old figure)the new figure has a side of 9.9 what is corresponding side in the old figure? A)6 B)6.6 c)6.06 D)6.16
asked by makeeda 
math
you traveled 189 miles on 7 gallons of gasoline. at this rate how many gallons of gasoline would you need to travel 297 miles? A)11 b)14 C)20 D)15.5
asked by makeeda 
physics
Determine the percent error in this approximate value. (There are 365.24 days in one year.)
asked by john 
us history
Why did Alexander Hamilton propose paying the entire national debt at its face value?
asked by Anonymous 
earth
1) On a horizontal straight line graph of distance (vertical axis) against time, which variable is not changing? a) Distance b) Time c) Wind speed d) Temperature 2) A graph of distance against time is a straight line with a slope of 1. If you wait for 3
asked by Sarah 
geometry
How do you find the lateral area and perimeter of a pentagonal pyramid? ex: The slant height of a regular pentagonal pyramid is 6 cm, and the length of each side of the base is 3 cm. Find the lateral area.
asked by Nicole 
physics
A golfer rides in a golf cart at an average speed of 3.10 m/s for 26.0 s. She then gets out of the cart and starts walking at an average speed of 1.20 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and
asked by Mary 
physics
A block starts at rest and slides down a fric tionless track. It leaves the track horizontally, flies through the air, and subsequently strikes the ground. What horizontal distance does the block travel in the air? Answer in units of m. What is the speed
asked by Anonymous 
algebra
One number is 4 times and then positive number. The sum of the two numbers is 620. Find the two numbers.
asked by kate 
Chemistry ....Please Double check
If 4.55 g of sodium sulphide and 15.0 g of bismuth nitrate are dissolved in separate beakers of water which are then poured together, what is the maximum mass of bismuth sulphide, an insoluble compound, that could precipitate? What reactant was the
asked by Saira 
physics
lots of questions 1) a 2N and 6N force pull on an object to the right and a 4N force pulls to the left a 0.5 kg object what is the net force on the object 2)a 20mkg bike accelerates at 10m/s2 with what force was the person pedaling 3)if a person is pushing
asked by lauren 
physics
if a person pulls on a cart to the right with a force of 10N and a second person pulls to the left with a force of 3N what is the net force (+ direction)on the cart
asked by lauren 
Math
How many ways can 3 students be arranged in three chairs? I'm not really sure but I think that the answer will be 9 (nine), is that correct..?
asked by Sasha 
Maths
A sum of money was shared among Amos, Benny and Cathy. Amos received 1/4 of the sum. Benny received 2/5 of the remainder and Cathy received the rest. As a result, Cathy received $150 more than Benny. (a) What is the amount received by Amos? (b) Find the
asked by danial 
math
a swimming pool is 60ft long and 35ft wide. a model of the pool is 9in.long.how wide is the model? A)3.25 B)4.25 c)5.25 d)6.25
asked by makeeda 
geometry
how do you find the height of an isosceles triangle only knowing the lengths of all three bases? EX: There's isosceles triangle ABC with vertex angle B. AB= 5x28. BC= 2x+11. AC= x+5
asked by erin 
chemistry
1) 14 moles of Ar 12 moles of N2 2 moles of BF3 If the total number of mol present in the mixture visualized is 1.43, calculate the number of mol of N2. 2) 11 moles of N2 4 moles of CSH4 If the total number of mol present in the mixture visualized is 1.68,
asked by eng 
math
a blueprint for a house shows a bedroom being 5.5 inches wide.the scale used to create the blueprint is 0.50in=1ft what is the actual width of the bedroom? A)11 b)10 C)9 D)8
asked by makeeda 
chemistry
The Rydberg equation (1/lambda=R/ni^2–R/nf^2) can be treated as a line equation. What is the value of nf as a function of the slope (m) and yintercept(b)? by GC 1/lambda = R/ni^2–R/nf^2 y = mx + b (standard form) of a linear equation) x = (yb)/m Let,
asked by bubble 
math(please help urgent)
1) Find the values (if possible) of the six trigonometric functions of o if the terminal side of o lies on the given line in the specified quadrant. y=1/3x 2)Evaluate (if possible)the sine, cosine, and tangent of the angles without a calculator. (a)
asked by Hannah 
Physics
My question is how does metal corrosion affect a reed switch? This question is from my textbook. We are following cambridge igcse science.
asked by Amir 
math/probability
A bag contains 7 red chips and 10 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that both chips are red?
asked by KiKi 
chemistry
If the ratio of the rate of effusion of an unknown gas to that of CO under the same conditions is 0.7978, calculate the molar mass (g/mol) of the gas
asked by eng 
college algebra
When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= 16t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v” is the initial velocity (speed) in ft/sec and “k” is the initial height in
asked by Sherry 
chemistry
pH Indicators 7 test tubes Added 5mL of water of 0.1 HCl and 5mL of water to 1st test tube. Poured 9mL of water to remaining 6 test tubes. Poured 1mL of solution from 1st test tube to 2nd. Poured 1mL from 2nd to third. Poured 1mL from 3rd to 4th. " " 4th
asked by linda 
physics
Which of the following are not transverse waves? a) Water ripples in a small pool. b) Sound waves traveling through water. c) Radio waves traveling through space. d) Microwaves inside a microwave oven. e) The vibrations on the surface of a drum.
asked by hilary 
chemistry
Calculate the average kinetic energy (J/molecule) for a molecule of an ideal gas at 382 K?
asked by bubble 
physics
a sled is being pulled to the left by 5 dogs, each dog pulling with 6 newtons of force what is the net force
asked by lauren 
Math
20. A bag contains 7 red chips and 10 blue chips. Two chips are selected randomly without replacement from the bag. What is the probability that both chips are red
asked by for Ms. Sue 
PreCalculus
cos^2(x) + sin(x) = 1  Find all solutions in the interval [0, 2pi) I got pi/2 but the answer says {0, pi/2, pi} Where does 0 and pi come from for solutions? When simplifying I just get sin(x)=1
asked by George 
just for knowledge
How much do my shares worth if Authorized capital 60,000 shares and I own 500 shares at $1.00 par value. Thank You
asked by Sharon 
math(please help)
1) Find two values of o that satisfy the equation. Give your answers in degrees and radians. Do not use a calculator. (a) sec o = 2 (b) sec 0 = 2
asked by Hannah 
Social Studies
Can you help me with this other question Which african countries were not controlled by a foreign power in the years 18801914. thanks:)
asked by just another pretty face 
Religious
Explain the concept of hedonism an how is this concept seen as the dominant theory in our society today.
asked by TOM 
physics  PLEASE HELP!
Sam is sitting in her fishing boat watching a trout swim below the surface. She guesses the apparent depth of the trout at 2.0m. She estimates that her eyes are about 1.0 m above the water's surface, and that the angle at which she's observing the trout is
asked by Sarah N H 
math
i can type 19 words in 38 seconds how many can i type in60 seconds? A)25 B)30 C)40 D)50
asked by makeeda 
Physics
If you cut a magnet in half does each half become a magnet. Give a clear explanation to your answer.
asked by Amir 
math
Decrease a number by 5, divide the result by 2, then add 17 and multiply by 5. If the final result is 100, with what number did you start?
asked by Laura 
child care
what are 10/ some questions to ask your parents about life with kids for example; I have these ones do you like life now with kids what made you want kids were you ready for kids anymore suggestions? thank you(:
asked by anissa 
english
what is being said in the following line: “Foul devil, for God’s sake, hence, and trouble us not; For thou hast made the happy earth thy hell, Fill’s it with cursing cries and deep exclaims.”
asked by kim 
grade 11 physics
what is the index of refraction of a medium in which the speed of this radiation is 2.54X10^8 m/s? I don't even know where to start...
asked by Nicole 
English Lit
Need help on writing a prose satire and how it changes the behavior?
asked by Anonymous 
child development
what level and stage he or she is at developmentally, and list some characteristics demonstrating the nature of the stage. i picked adolecent can you help me find some sites plz
asked by scooby 
physics
Dolphins ca detect small fish whose size is about equal to the wavelength of the sound the dolphin makes with its echolocation system. A dolphin emits a chirp at a frequency of 220 kHz. Using the speed of water as 1530 m/s, what is the smallest fish this
asked by hilary 
physics
two loudspeakers are set to produce waves at 255Hz and 258Hz respectively. a tuning fork of unknown frequency is sounded together with each speaker in turn. with the 255Hz speaker it produces 10 beats in 10second and with the 258Hz speaker it produces
asked by sofi 
Health Administration
Bayside insurance offers two health plans. Under plan A, Giselle would have to pay the first $60 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first $250, but only 20% of the rest. For what amount of mediacl bills will
asked by Frank 
world history
How did the Reformation in Great Britain affect the colonization of the New World? Explain
asked by Anonymous 
child development does it sound ok
During the early adolescence (ages 1214) the teens are very moody. As puberty is in full swing they will experience rapid body changes. The teens are sensitive to their body as it changes. Girls tend to be less fulfilled about their body image. Most want
asked by scooby 
Religions of The World
Assignment World Religions Report (The Class Final) • Resources: Appendices A, B, & F • Due Date: Day 7 [Individual] forum • Submit your World Religions Report. For this project you will choose one of the following religions: Buddhism, Hinduism,
asked by Darlene 
childhood
The major emphasis of movement programs for young children is the development of concepts. Wich of the following three major categories are they broken into? A Body,space, and time B What,who,where C Awareness, knowledge,and understanding D Movement, skill
asked by Abbie 
geometry
What is the lateral area of a cylinder? How do you find it? Is there a formula?
asked by Nicole 
HISTORY
PLLEASE HELP ME i have no clue what to put. Write a series of five journal entries from the point of view of a member of a tribe that has been conquered by the Incas. Make sure that you bring out positive and negative aspects of Inca rule. Each journal
asked by Tiffany 
Social Studies
I can tell everyone has some different ideas as to favorite teaching methods. I was curious about something, so I thought I would throw it out to the group. Do you think that one of these methods should be used the majority of the time and then be
asked by Anonymous 
algebra
53.27 plus 30% is what
asked by christina 
IT web
What are good coding practices? How can these be integrated into the learning of how to code in XHTML? What effects will it have on a web page if container tags or standalone nonempty tags are not used when coding in HTML?
asked by jessica smith 
chemistry
Given the plot of 1 vs 1ni2, what is the value of nf? y=0.011x+0.0027 R^2=1 1/n(initial)^2=.04 1/lambda=.0023
asked by bubble 
English/ HistoryUrgent
Was there a person in history whose personality changed dramatically in his/ her life? Who was he/ she? I did google search but still had no ideas? Can someone please give a name of person who changed dramatically in history? Any help will be appreciated.
asked by Anonymous 
algebra
65*8+2^3
asked by james 
social studies
I need to know plants vegetation in alberta
asked by polly 
Writing
Which guidelines are less important to a business document but more important to a academic paper.
asked by John 
chemistry
1) 15 moles of Ne 10 moles of N2 Enter the mass percent of Ne MM[Ne]=20.18 g/mol, MM[N2]=28.01 g/mol
asked by bubble 
why was I banned?
Why was I banned from my previous post, I was not able to post anything new.
asked by deeguyz 
physics
How do you convert from nanometres  metres and vice versa? I need to convert 0.6 X 106 (the 6 is an expom to nm...
asked by Sarah 
geometry
In geometry, can a counterexample be used to determine if a conjecture is false or not?
asked by erin 
english IV
Write a prose satire aimed at changing the behavior or attitude of your audience.
asked by Anonymous 
For all teachers
Does anyone know if Sra will be on here today because I really need her to check my french.
asked by Rachel 
algebra
SOVING SYSTEM OR EQUATIONS BY ELIMINATION
asked by SEXY SLIM 
math
the sum of a numbers is 15 and their difference is 4. form a pair of simultaneous equations and solve to find the numbers.
asked by disha 
international business
Debate the benefits and drawbacks of both market and mixed economies on the Discussion Board. Present questions for any opponent's arguments, looking for holes and inconsistencies. Attempt to answer any arguments made against your position.
asked by helpless 
english
distinguish between the prejudicial and nonprejudicial use of rhetorical devices?
asked by Anonymous 
accounting
describe briefly how businesses make capital budgeting decisions.
asked by frances 
college
two organizational departments in a business.
asked by monica 
health
Myelin visited my office yesterday complaining of numbness in his right leg and face. He also has been experiencing muscle weakness and mile depression. i noticed a delay in his visual response in both eyes. what nervous system disorder is he suffering
asked by joy 
biology
why is the cycle of some types of cells faster than in others, and which part of the cell cycle is the most variable in length
asked by Ron 
to Scooby
See below: http://www.jiskha.com/display.cgi?id=1263526317
asked by Writeacher 
math
Find (if possible) the trigonometric function of the quadrant angle. sec 3pie/2 I really do not know how to do this.
asked by Hannah 
science
Post a 200 to 300word response to the following: In your own words, summarize each of the major theories of biology. • Choose one theory and provide an example of how this theory relates to the news today. • Use at least one outside reference in
asked by k 
Academic English Literature, Restoration & 18th c
How to write a prose satire aimed at changing the behavior or attitude?
asked by Anonymous 
Religious
why is the concept of determism often regarded as more important than christianity.
asked by TOM 
Hum130
Assignment World Religions Report (The Class Final) Due Sunday â€¢ Resources: Appendices A, B, & F â€¢ Due Date: Day 7 [Individual] forum â€¢ Submit your World Religions Report. For this project you will choose one of the following religions:
asked by Darlene 
childhood
The major emphasis of movement programs for young children is the development of concepts. Wich of the following three major categories are they broken into? A Body,space, and time B What,who,where C Awareness, knowledge,and understanding D Movement, skill
asked by Abbie 
11th gradeAmercain Lit
I need some help editing this paper. Public’s right to know V.S You’re right to privacy When does the public right to know become unreasonable? Does an individual’s privacy become irrelevant when the public’s safety is concerned? When the
asked by Cody 
social studies
I need to know lots of animals that live in alberta and about thier lives.
asked by polly 
French
Could you check these thanks Directions: Answer as indicated, using the pronoun en. Part 1 1. Tu as de l'aspirine? Answer: Oui, j'en ai. 2. Tu as du sirop? Answer: Non, je n'en ai pas. 3. Tu as des médicatments? Answer: Non, je n'en ai pas. 4. Tu as de la
asked by Rachel 
Writing
Which guidelines are most important for formatting?
asked by John 
English
I have to debate on legal prostitution. My view point is against legalizating prostitution... Can you help me find clean sites/info? I need to have logical, emotional, and ethical appeals...
asked by Amber 
hca210
One major problem for the elderly is the lack of coverage in covering all their expenses for longterm care. In many traditional cultures, the elderly are taken care of by their children. However, because that is not the case here, an alternative method
asked by luz 
com 140
name 3 reasons for writing an informative message?
asked by quita 
religous
from the 4 theories which is least likly to bene fit from wining the lottery and why
asked by TOM 
physics
A car travels 0.90 km at an average speed of 84.8 km/h and then 0.97 km at an average speed of 41.6 km/h. What is the car's average speed during the 1.87 km interval?
asked by Kim 
spelling/analigies
wouldnt:couldnt::green:?? i really need help...??
asked by jacquieisawesome 
math
A student reports that it is impossible to mark a product up 150% because 100% of something is all there is. What is your response?
asked by Anonymous 
social studies
what is the population of alberta 2010
asked by polly 
social studies
how many people have joined alberta since 2009 ?
asked by polly 
data management
It is 21% likely that any particular person has seen the latest boxoffice hit. If you are going to a party where you will see 10 people, how likely is it that fewer than 2 of the 10 have seen it?
asked by sara 
carpentry
how to install a lock
asked by TOM 
geometry
how do you find the base area of a pyramid?
asked by Cara