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August 27, 2014

Posts by emma


Total # Posts: 1,157

Writeacher - help
Erik Johnson has just become a heir to $15 000. He's 23 years old, and hes graduated frm university business program. He works as an assistant managager of retail store. He lives with his friend in a two bedroom apartment. He saves 5% of his monthly paycheck. Erik wants to...
March 26, 2011

reading
i can never find any awnsers
March 20, 2011

Math
if triangle ABC is equilateral with AB = 2x, BC = 4x - 7, and x + 3.5, then what is x?
March 10, 2011

science
balance hcl(aq) + agno3(aq) yields hno3(aq) +AgCl (aq)
March 7, 2011

science
balance hcl(aq) + agno3(aq) yields hno3(aq) +AgCl (aq)
March 7, 2011

science
balance hcl(aq) + agno3(aq) yields hno3(aq) +AgCl (aq)
March 7, 2011

science
balance hcl(aq) + agno3(aq) yields hno3(aq) +AgCl (aq)
March 7, 2011

maths
k(t)=3-t^4/sin(4t) (0<t<1/4pie symbol
February 26, 2011

maths
k(t)==3-4^t/sin(4)t
February 26, 2011

7th grade math/distributing property homework
Oh thank you very much this helped me a lot!
February 23, 2011

7th grade math/distributing property homework
I need help with the steps of one question: -8(n-2)+4(3-6n)= (-36). Trying to find out what 'n' is
February 23, 2011

geometry
The rectangular label will completely cover the lateral surface of the can using as little paper as possible. If the can has a height of 8 cm and a diameter of 7 cm, then what are the width and length (to the nearest centimeter) of the label?
February 21, 2011

College Physics
i am still not getting the right answer. i think my algebra is wrong. what did you get for an answer?
February 20, 2011

College Physics
A 4.55-kg ball of clay is thrown downward from a height of 3.13 m with a speed of 4.41 m/s onto a spring with k = 1690 N/m. The clay compresses the spring a certain maximum amount before momentarily stopping. a) Find the maximum compression of the spring. b) Find the total ...
February 20, 2011

College Physics
A cannonball of mass 3.67 kg is shot from a cannon at an angle of 39.51° relative to the horizontal and with an initial speed of 56.41 m/s. As the cannonball reaches the highest point of its trajectory, what is the gain in its potential energy relative to the point from ...
February 20, 2011

College Physics
A 22.9-kg child is on a swing attached to ropes that are L = 1.33 m long. Take the zero of the gravitational potential energy to be at the position of the child when the ropes are horizontal. Part A)The child's gravitational potential energy when the child is at the lowest...
February 20, 2011

Math
4/13
February 14, 2011

us history
what is an example of the eighth ammendment?
February 8, 2011

math
yup the answer is 800. way to go!
February 2, 2011

physics
thank you :)
February 2, 2011

physics
Two ice skaters stand at rest in the center of an ice rink. When they push off against one another the 61 kg skater acquires a speed of 0.60 m/s.If the speed of the other skater is 0.90 m/s, what is this skater's mass?
February 2, 2011

Social Studies
How many people (Jews, Non-Jews, etc.) died in concentration camps during the Holocaust in WWII?
January 13, 2011

Social Studies
I already got hebrews. If you would look carefully you would see that.
January 10, 2011

math math math math
math art wrighting spelling
January 10, 2011

spanish unscramble words
I NEED TWO WORDS UNSCRAMBLED . DATIPSOR AND SCENORIOTC THANK YOU
January 2, 2011

PreCalculus
Cone Problem Beginning with a circular piece of paper with a 4- inch radius, as shown in (a), cut out a sector with an arc of length x. Join the two radial edges of the remaining portion of the paper to form a cone with radius r and height h, as shown in (b). What length of ...
January 1, 2011

science
Thank you soo much damon !!
December 31, 2010

chemistry
C
December 31, 2010

pre algebrahow
do you solve a negative fraction plus a posotive fraction?
December 1, 2010

microeconomics
The marketing division of a firm has measured demand for its product and reports that it is Q = 24 – P, where Q is units and P is price per unit in dollars. The cost is given in the table below. Complete the table and determine the profit-maximizing level of output for ...
November 25, 2010

Business Communication
revising or editing
November 24, 2010

3rd grade
Name all the arrays you can manke with each set of tiles 8 tiles, 9 tiles, and 16 tiles
November 21, 2010

Physics
How much work is required to stop an electron (m = 9.11*10^-31 kg) which is moving with a speed of 1.50×106 m/s?
November 7, 2010

Physics
In a very simple model of the lower atmosphere, air has a constant density of 1.25 kg/m3. How much would the air pressure change over a height difference of 260 m?
November 3, 2010

space
How many Earth Diameters would it take to reach the Sun 93,000,000 miles away?
November 2, 2010

physics
What is the magnitude of the apparent weight of a 69 kg astronaut 5200 km from the center of the Earth's Moon in a space vehicle moving at constant velocity?
October 29, 2010

physics
A 2100 kg car rounds a curve of 67 m banked at an angle of 13. If the car is traveling at 105 km/h, will a friction force be required? If so, in what direction?
October 29, 2010

math
4c+2=18
October 21, 2010

chemistry
What data would you need to evaluate the claim that a certain product neutralizes 47 times its weight in excess stomach acidity?
October 19, 2010

4th grade
what are the nouns in the sentence: Ryan will learn to swim this summer.
October 18, 2010

history
i know how to google
October 18, 2010

history
what was the battle of trafalgar?
October 18, 2010

history
what was the battle austerlitz?
October 18, 2010

history
what was napolean like in the north america?
October 18, 2010

history
how did napoleon declare himself emperor?
October 18, 2010

history
i know how to google, that's what i've been doing and i'm having no luck
October 18, 2010

history
you can edit it and change info on it, it's not reliable *i meant good not code
October 18, 2010

history
wikipedia isn't a code source
October 18, 2010

history
what was the napoleonic code?
October 18, 2010

arithmetic
what do you want?
October 18, 2010

Physics
Two men pull a 31-kg box with forces 9.7 N and 7.6 N. Find the resultant scceleration of the box.
October 16, 2010

Physics
A car mass of 1330 kg is traveling at 28.0 m/s. The driver applies the brakes to bring the car to a rest over a distance of 79.0 m. Calculate the retarding force.
October 16, 2010

spelling
go on dictionary . com (no spaces) it's really useful
October 14, 2010

History
i don't know, i mean, weren't all those people who died for the revolution? so if they didn't die, wouldn't it have gone a lot faster? and didn't they die for no real reason, i mean, they said one wrong thing and they weren't sent to be executed. did ...
October 14, 2010

History
was the Reign of Terror necessary to preserve the French Revolution?
October 14, 2010

math
the sum of the input and output equals 10, so it would be 10 for the output of 0
October 14, 2010

Math
find the greatest four-digit number that has exactly three positive factors.
October 14, 2010

ap chem
so is this correct: 3330000 grams CH4 0 grams O2 1770833 grams NH3
October 11, 2010

ap chem
Hydrogen cyanide is produced industrially from the reaction of gaseous ammonia, oxygen and methane: 2NH3(g) + 3O2(g) + 2CH4 -->2HCN + 6H2O(g) a)If 5.00 x 10^3 kg each of NH3 , O2, and CH4 are reacted what mass of HCN will be produced, assuming 100% yield? b)At the end of ...
October 11, 2010

Chemistry
The buoyant force on a balloon is equal to the mass of air it displaces. The gravitational force on the balloon is equal to the sum of the masses of the balloon, the gas it contains, and the balloonist. If the balloon and balloonist together weight 175 kg, what would the ...
October 11, 2010

AP Chemistry
HELP! We're currently studying gases but I dont even know where to start with this question.
October 11, 2010

AP Chemistry
The buoyant force on a balloon is equal to the mass of air it displaces. The gravitational force on the balloon is equal to the sum of the masses of the balloon, the gas it contains, and the balloonist. If the balloon and balloonist together weight 175 kg, what would the ...
October 11, 2010

math
659 x 1357=1357 x n n=
October 6, 2010

math
6+y=17
October 6, 2010

algebra
1/6h=9
October 6, 2010

Math
I don't get how you found the solution. Also I am the first one to post part b) and I dont get how to do it.
October 2, 2010

Math
When a concrete structure is built, an engineer often performs a slump test on the concrete to ensure that it is of suitable strength and consistency. The engineer fills a truncated cone with a bottom diameter 200mm, top diameter 100mm and height 300mm with concrete. The ...
October 2, 2010

math problem
When a concrete structure is built, an engineer often performs a slump test on the concrete to ensure that it is of suitable strength and consistency. The engineer fills a truncated cone with a bottom diameter 200mm, top diameter 100mm and height 300mm with concrete. The ...
September 30, 2010

math-bobpursely
Sorry bobpursely, but may I know what the E stands for in your formula? What is the Surface area of a glass bead that has the diameter of 11m? Express your answer to the nearest square mm. radius= .0055m radius^2= 5.5E-3 ^ 2=30.25 E-6m 4PIr^2= about 12*30.25E-6 m
September 30, 2010

math
What is the Surface area of a glass bead that has the diameter of 11m? Express your answer to the nearest square mm. A glass bead would be a sphere. So the formula for that is--> SA = 4ðr^2 = 4ð(5.5^2) = 380mm^2
September 30, 2010

math problem
When a concrete structure is built, an engineer often performs a slump test on the concrete to ensure that it is of suitable strength and consistency. The engineer fills a truncated cone with a bottom diameter 200mm, top diameter 100mm and height 300mm with concrete. The ...
September 30, 2010

health
what brings energy and oxygen into the body?
September 29, 2010

math
6r-3=15
September 28, 2010

math
7d+5=26
September 28, 2010

physics
A golfer takes three putts to get the ball into the hole. The first putt displaces the ball 15 ft north, the second 9.0 ft southeast, and the third 5.0 ft southwest. What displacement was needed to get the ball into the hole on the first putt?
September 26, 2010

phsics
so the magnitude will be the same and you have to add 180 degrees to the the original angle right..
September 23, 2010

phsics
I'm having some trouble with a question how do you find a vector that balances another one
September 23, 2010

english
Give 5 similaralities between spoken language and text/instant messaging
September 23, 2010

math
the length of a rectangle is 9in. greater than the width.the area 36in.2 find the dimensions
September 22, 2010

math
the length of a rectangle is 9in. greater than the width.the area 36in.2 find the dimensions
September 22, 2010

Algebra
you have to do long division i got x-9 as the answer
September 21, 2010

physics
An artillery shell is launched on a flat, horizontal field at an angle of α = 31.5° with respect to the horizontal and with an initial speed of v0 = 266 m/s. What is the horizontal distance covered by the shell after 9.44 s of flight?
September 21, 2010

physic
The velocity vector V1 has a magnitude of 3.0 m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of 2.0 m/s. The sum of the two is V3, so that V3 = V1+V2 true or false for each question The magnitude of V3 can be -3.0 m/s The x-component of V3 can be...
September 21, 2010

chemistry
what happens when you cool biodiesel. petroleum-based diesel fuel, and vegetable oil?
September 19, 2010

Biology
Populations are frequently NOT in equilibrium due to selection or other evolutionary forces. Imagine a population of 100 individuals. Forty-nine of the individuals are homozygous dominant for beady-eye gene, 9 are heterozygous and 42 are homozygous recessive. NOTE: The ...
September 18, 2010

physics
The speed limit in a school zone is 38 km/h. A driver traveling at this speed sees a child run onto the road 16 m ahead of his car. He applies the brakes, and the car decelerates at a uniform rate of 8.5 m/s2. If the driver's reaction time is 0.55 s, What is the stopping ...
September 6, 2010

English
What is the proper name used when using improper words. ie rootin' tootin'?
August 25, 2010

math
"ThermoStar has been producing residential thermostats for over 50 years. Looking over the past 20 quarters (5 years) of the different product lines, the general manager has been trying to get a handle on sales, costs, and production, and has asked for your help. Your ...
August 5, 2010

Statistics
Car P(Sale) % Sold Per Sale/ Profit Per Sale VW Golf 10% 15% $1,000 Saab 10% 15% $2,000 BWM Z4 10% 20% $12,000 Skoda Octavia10% 10% $1,200 Lada Niva10% 40% $400 Sum 100% 2.1 What is the expected profit for a VW Golf? 2.2 What is the expected profit for a Saab? 2.3 What is the...
July 27, 2010

american government
there are five main principles that form the basis of rules that ensure our democratic government. discuss each and present an example that shows how our government is not obeying each principle
July 20, 2010

Chemistry
How were you able to get the 1.6?
June 24, 2010

Chemistry
Prepare a 0.0200 mM dye solution at low pH by dilution 0.40 ml of the stock 0.100 mM chemical X into the appropriate volume of 2.5 M HCl. What is the amount of HCL required for dilution, the final concentration of HCl in the solution, and the pH? I know there's the MV = MV...
June 24, 2010

english
what does being perfect mean?
June 16, 2010

Career Studies
Hi, I have to do a visual presentation on a current economic or social trend. I'm not allowed to use bristol board/posters or powerpoint/slideshows, because she wants us to be creative. What are some trends I could choose from, and what kind of presentation could I ...
June 14, 2010

chemistry
What is the purpose of removing all the precipitate from inside a beaker?
May 27, 2010

chemistry
What is the purpose of removing all the precipitate from inside a beaker?
May 27, 2010

Chemistry
What is the number of moles present in 24.0 mL of 0.500M solution of sodium chloride, NaCl? How many moles are there in 456 g of calcium fluoride, CaF2?
May 27, 2010

chem can u check answer please
I'm not ure that that is right... [H+] = -log(pH) however, we are given a pOH, not a pH. pH + pOH = 14 pH = 14 - pOH so 14 - 9.262 = pH pH = 4.738 [H+} = 10^-ph = 10^-4.738 [H+] = 1.8281 x 10^-5 M
May 23, 2010

calc
Three verticies of a parallelogram are D(2,1,3), E(-4,2,0) and F(6.-2,4). Find all possible locations of the fourth vertex.
May 23, 2010

Pre Algebra
Transversals?
May 21, 2010

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