Wednesday
October 1, 2014

Posts by elizabeth


Total # Posts: 820

Math
I don't understand this quadratic equation: The ratio of the measures of the length and width of a rectangle is 5:7. the area of the rectangle is 1,715 square feet. Find the dimensions of the rectangle.
January 31, 2012

Physics
How long does it take light traveling from the sun at 3.0 x 10^8 m/s to reach Jupiter, which is 780 x 10^6 km away?
January 31, 2012

medical office percedures
Work Place Application 1-Assume that you have been selected to order a new computer system for the physician. Clinic personnel include: three physicians, six administrative personnel, and four clinical assistants, plus you, the office manager. Describe the minimum equipment ...
January 24, 2012

world history
The Japanese living in America were seen as a threat to national security after the Japanese attack on Pearl Harbor, so they were sent to live in camps in the interior of the country. true or false
January 22, 2012

Science
KE= 1/2mv^2 KE= 35kg x 50m^2/s^2
January 19, 2012

cultural diversity
Native americans are ambivalent about early intervention programs forchildren with disabilities because they:
January 6, 2012

Science(help test tomorrow 6 garde)
What kind of combination is iron filings and saw dust?
January 3, 2012

Physics
Thank you! I redid it with different numbers, and I got the problem correct. :)
November 8, 2011

Physics
A water skier, moving at a speed of 8.36 m/s, is being pulled by a tow rope that makes an angle of 33.4 ° with respect to the velocity of the boat (see the drawing). The tow rope is parallel to the water. The skier is moving in the same direction as the boat. If the ...
November 8, 2011

quote a reference
im writting a essay for child care how do i quote a reference from a book can you give an example
October 29, 2011

4 grade math
Remember PEMDAs. It tells the order of operations. M for multiplication comes first. 4+8+7/216 Next is D for division. 4+8+(7/216) Let's pretend it's a fraction for right now. Next is A for Addition 12+(7/216) Your result in mixed number form is 12 7/216. As an ...
October 24, 2011

economics
5. A market contains a group of identical price-taking firms. Each firm has a marginal cost curve MC(Q) = 2Q, where Q is the annual output of each firm. A study reveals that each firm will produce if the price exceeds $20 per unit and will shut down if the price is less than $...
October 17, 2011

Physics
A rifle is pointed horizantally 100 meters away from a target. The bullet hits 0.75 millimeters below the target. How long did it take to get there? What was the velocity of the bullet when it was first shot?
October 14, 2011

chemistry help please ASAP
how do I find two positive ions and two negative ions that are isoelectronic with a) Ar b) Xe
October 11, 2011

chemistry please help ASAP
how do I find two positive ions and two negative ions that are isoelectronic with a) Ar b) Xe
October 11, 2011

sport
compare and contrast the influences legal factors and regulatory bodies on health safety in sport. case law vs civil law similarities and differeences.
October 4, 2011

sport
what are the legal factors and regulatory bodies that influence health and safety in sport thank you.
October 4, 2011

calculus
find limit as x aproches 0 in the equation (5sin(x))/(x^2-13x)
October 1, 2011

chemistry - help
the density of water is 62.4 lbs/ft^3.what mass of water in kg will a rectangular hold if it measures 2.00 ft by 3.00 ft by 6.00 inches?
September 26, 2011

chemistry help ASAP
i don't understand, i can:t get the correct answer . please help
September 26, 2011

chemistry help ASAP
a graduated cylinder contains 20.0 ml of water. when 100.g of a brass cylinder were added to the graduated cylinder, the water level rose to 32.6 ml. given this information what is the density of the brass cylinder?
September 26, 2011

chemistry-HELP ASAP
the density of water is 62.4 lbs/ft^3.what mass of water in kg will a rectangular hold if it measures 2.00 ft by 3.00 ft by 6.00 inches?
September 26, 2011

Physics
Janet jumps off a high diving platform with a horizontal velocity of 2.37 m/s and lands in the water 1.9 s later. How high is the platform? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m
September 23, 2011

math
what's the explicit formula for 8,15,27
September 21, 2011

chemistry
If 434 g SO2 escaped into the atmosphere and all the escaped SO2 were converted to H2SO4. How many grams of H2SO4 would be produced in the atmosphere?
September 18, 2011

Medical Seekers
okayyyyyyyyyyyyyyy................ umm....recieve data from transfer patients?
September 14, 2011

Electronic Health records
How can confidentiality be maintained whle using a computer for patient records?
September 14, 2011

Medical
Okay i will do that next time
September 14, 2011

Medical
HOw does Ultrasonograph create an image of the body part such as a developing fetus?
September 14, 2011

HealthCare
What is a major use for the internet in healthcare?
September 14, 2011

Logic
modus ponens
September 11, 2011

AP US History
To what extent would it be accurate to say that the New England, Middle, and Southern colonies had merged to create a single American Society by the outbreak of the revolution?
September 10, 2011

Physics
In a total time of 25s, a field hockey player runs 25 m [26 degrees N of E] and then runs 32 m [18 degrees S of E] determine her average velocity.
September 10, 2011

physics
20sin(30degress)
September 8, 2011

law
hi thanks for ans but i am in the uk so is there a case i can show that would help me with this question . (man accused of drink driving on private drive that is not part of road).
September 8, 2011

law
person arrested on private drive on suspition of drink driving what are law rules on drink driving. person not on public road. is there a case that could argue he is not guilty
September 8, 2011

American History
3. In dissent, Justice Harlan wrote the "real meaning" of the railcar segregation law was to suggest that "colored citizens are so inferior and degraded that they cannot be allowed to sit in the public coaches occupied by white citizens." How might we ...
September 5, 2011

Math
(5a)to the power of 3, for a = -1 I just want to know if both of the numbers in the parenthesis have to go to the power of three or if only -1 goes. Thanks :)
September 1, 2011

Managerial Finance
Current ratio is lower than the industry median of 1.51 but higher than the lower quartile of .81. This could be viewed negatively by the industry because the lower the current ration the less liquid a company is. So East Coast Yachts is not as liquid of a company as some of ...
September 1, 2011

CHEMISTRY
may i please get some notes on stoichiometry because i dont seem to be getting anything.
September 1, 2011

7th grade science
I JUST DID THIS RIGHT NOW FOR HOMEWORK =) 1. did i get enough data? 2.observations at each stage of the process may lead you to modify your hypothesis or experiment. 3.the sharing of ideas and expiremental findings with others through writing and speaking. that is what i got ...
August 31, 2011

math
How can you find the distance mike traveled in 9 hrs using the table
August 29, 2011

chemistry
Name the substances which decolourise bnromine water
August 23, 2011

chemistry
calculate the number of moles of sodium carbonate in one dm3
August 23, 2011

physics
i think that its still joules because the S.I unit of enrgy is joules.
August 23, 2011

Chemistry - please help
A substance was tested for Impurity A using liquid chromatography. 2 determinations were performed. In the 1st chromatogram, Impurity A was not detected, i.e. no Impurity A peak was observed and in the 2nd chromatogram, Impurity A peak was observed with a value of 0.3%. Is it ...
August 13, 2011

CHemistry - help needed
I performed a "related substances" test using HPLC on 1 sample. The 1st value for an impurity is 0% (not detected) and the 2nd value is 0.3%. THe passing limit is 4% for this test. Are the results acceptable, i.e. to take the average of the 2 values to give 0.15%?
August 11, 2011

Physics
Thank you so Very Much :))
August 5, 2011

Physics
What are the independent and dependent variables in the following scientific investigation? Controlled variables are also being used in this investigation. Identify the controlled variables as well. A chemistry student is conducting an experiment to determine if table salt ...
August 5, 2011

physics
The circuit shown in the figure encloses an area of 25 cm2. The magnetic field increases steadily from 0 T to 0.50 T in 0.2 ms. What is the current in the resistor during this time? The circuit has a 9.0 v battery and a 20 ohm resistor
August 2, 2011

think build live success
Hello-this is Elizabeth Kemler..you seem to be referencing my program and I'm interested in how you came upon it and how you're using it. Please let me know.
July 24, 2011

Chemistry
how many mL of 2.0 M NaOH are required to get 100 g of NaOH?
July 16, 2011

Chemistry
how many mL of 2.0 M NaOH are required to get 100 g of NaOH?
July 16, 2011

Finance
1. A man establishes an annuity for retirement by depositing $50,000 into an account that pays 7.2% compounded monthly. Equal monthly withdrawals will be made each month for 5 years, at which time the account will have a zero balance. Each year taxes must be paid on the ...
July 11, 2011

math
In 1995, the life expectancy of males in a certain country was 62.1 years. In 1999, it was 65.7 years. Let E represent the life expectancy in year t and let t represent the number of years since 1995. what is the linear function? Use the function to predict the life expectancy...
July 10, 2011

chemistry
a 500ml sample of oxygen gas at 24 degree celsius was prepared by decomposing a 3% aqueous soution of hydrogen peroxide in the presence of manganese catalyst by the reaction: 2h2o2 = 2 h20 + o2... the oxygen was colletec by displacement of water. the total pressure of gas ...
July 10, 2011

Chemistry
a tank contains a mixture of 3.0 mol of nitrogen gas, 2.0 mol of oxygen gas and 1.0 of carbon dioxide gas at 25 degrees celsius and a total pressure of 10.0 atm. Calculate the partial pressure in torr of each gas in the mixture?
July 10, 2011

microeconomics
Sam Johnson started a small machine shop, Machines, Inc., in his garage and incorporated it in March of 2002 as a calendar-year corporation. At that time, he began using his personal computer and tools solely for the business as part of his contribution to the corporation. The...
July 3, 2011

finance
Entrepreneur Edward is planning to open a business selling ice cream. He knows that the price of ice cream is determined by the forces of supply and demand, but he wants a report outlining five specific events that can be expected to cause the equilibrium price of ice cream to...
July 3, 2011

finance
On June 26, 2004, Elaine purchased and placed into service a new computer system costing $8,000. The computer system was used 80 percent for business and 20 percent for personal use in both 2004 and 2005. Elaine claimed only regular MACRS depreciation. In 2006, the computer ...
July 2, 2011

finance
On June 26, 2004, Elaine purchased and placed into service a new computer system costing $8,000. The computer system was used 80 percent for business and 20 percent for personal use in both 2004 and 2005. Elaine claimed only regular MACRS depreciation. In 2006, the computer ...
July 2, 2011

Chemistry
How do you know which reactions are spontaneous? For example, the equation I2(s)+2NaF(aq)->F2(g)+2NaI(aq) is spontaneous. Why is this so?
June 22, 2011

college chemistry
why do halogens tend to form diatomic molecules?
June 17, 2011

chemistry
If 1500 blood cells were lined up, they would make a row 1.0 inch long. What is the average diameter of the blood cells in micrometer(If l inch = 2.54cm)?.
June 9, 2011

maths
how can i slove 5x-2(x-5)=15
May 30, 2011

Physics
How Fast would a satellite have to move to stay in an orbit 300 miles above the Earths surface?
May 22, 2011

Literature
What role does fate play in the events of Romeo and Juliet? How are the young lovers victims of misunderstandings, miscommunications,and plain bad luck? How do these elements affect the way readers and audience members are affected by their story?
May 17, 2011

Maths
AB II CD meet at E find out the angle E.
May 17, 2011

physics
.250 kg toy airplane is suspended from the ceiling in a conical pendulum. It flies with a radius of 10 cm, and has a period of 20 seconds. Find the centripetal force acting on the plane?
May 14, 2011

ela
shrimp
May 10, 2011

ela
wut do i like to eat?
May 10, 2011

maths
What is the gradient of a line that has an angle of inclination of 75°? Enter the answer, rounded to 4 significant figures in the box below. the answer should be a number. ???
May 8, 2011

Com/155
Did I pick the correct pronoun? I had to sit down with my sister the other day about her spending habits. Her being the pronoun.
May 6, 2011

algebra 2
can someone tell me how to expand the bionomial (d-2)^6?
May 6, 2011

math
A card is pulled from a well shuffled deck of standard playing cards and then put back in the deck. A second draw is made from the deck. What is the probability that an ace was drawn both times?
April 29, 2011

math
A bag contains 7 red checkers and 11 black checkers. One checker is drawn and replaced. Then a second checker is drawn. What is the probability that a red checker was drawn both times?
April 29, 2011

math
A card is pulled from a well shuffled deck of standard playing cards and then put back in the deck. A second draw is made from the deck. What is the probability that an ace was drawn both times?
April 29, 2011

math
Marcus flips a coin and tosses a six-sided die with the sides numbered 1-6. What is the probaility that he gets a head on the coin and a number divisible by 3 on the die?
April 29, 2011

Physics
A railroad car with a mass of 1.93 104 kg moving at 3.24 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.16 m/s. (a) What is the speed of the three joined cars after the ...
April 24, 2011

Microeconomics
Search: Consider two resource markets in which the demand curves slope downward. In market A, the supply curve is horizontal, equilibrium price is $6, and 100 units of the resource are hired. In market B, the supply curve is vertical, equilibrium price is $20, and 30 units of ...
April 24, 2011

Physics
A 74.5 kg ice skater moving to the right with a velocity of 2.62 m/s throws a 0.21 kg snowball to the right with a velocity of 23.8 m/s relative to the ground. (a) What is the velocity of the ice skater after throwing the snowball? Disregard the friction between the skates and...
April 24, 2011

maths
I THINK I GOT IT ITS NEGATIVE AS THE COEFFIENT IS -X^2 WHICH IS NEGATIVE. IS THIS RIGHT?
April 23, 2011

maths
the graph of y=-(x^2/3)=2x=24 is a parabola. 1) is the parabola u-shaped or n-shaped. how can you tell this from the equation?
April 23, 2011

Character Buidling
My Character Building Teacher had given me a project to write the names of the people we hate on a non-boiled raw potato, and put it inside a clear plastic, locked, and not to be opened until the project is finished. Everyday, we should take an observation of the potato and ...
April 23, 2011

physics
An 85.4 kg astronaut is working on the engines of a spaceship that is drifting through space with a constant velocity. The astronaut turns away to look at Earth and several seconds later is 22.4 m behind the ship, at rest relative to the spaceship. The only way to return to ...
April 20, 2011

Physics
Two billiard balls with identical masses and sliding in opposite directions have an elastic head-on collision. Before the collision, each ball has a speed of 20 cm/s. Find the speed of each billiard ball immediately after the collision.
April 20, 2011

maths
My kids are stuck on this they've no idea what to do and I can't help them out either! Darren throws a stone from the top of a vertical cliff into the sea below. The trajectory of the stone can be modelled by the quadratic equation y = -(x^2/3)+2x+24 where y represents...
April 20, 2011

Character Buidling
My Character Building Teacher had given me a project to write the names of the people we hate on a non-boiled raw potato, and put it inside a clear plastic, locked, and not to be opened until the project is finished. Everyday, we should take an observation of the potato and ...
April 17, 2011

math
Manuel wants to calculate how many miles his farthers car travels on one gallon of gas. He knows that on a fu 15- gallon tank of gas, the car can travel 225 miles. Write an proportion that he could use to calculate the cars mileage per gallon(x)
April 13, 2011

finance
1–2 pages Details: Develop a personal financial planning budget. This budget can represent a budget for a fictitious individual; however, make sure you include the following: Information you would need to prepare this budget Income Taxes Expenses Personal expenses
April 11, 2011

physics
During peak shopping season at Northbrook Court, an escalator elevates 1233 passengers a vertical distance of 7.43 meters over the course of 30.3 minutes. If the average mass of the passengers is 55.3 kg, determine the power delivered by the escalator to the people.
April 11, 2011

Physics
A person doing a chin-up weighs 710 N, disregarding the weight of the arms. During the first 26.5 cm of the lift, each arm exerts an upward force of 356 N on the torso. If the upward movement starts from rest, what is the person's speed at this point?
April 11, 2011

Physics
A skier of mass 73.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 58 m up a 32° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?
April 11, 2011

law
english law. what are the powers of the court of appeal.
April 9, 2011

law--
discuss whether or not the changes to the selection of judges is leading to a wider cross section of people becoming judges. please help thanks
April 9, 2011

English huckleberry finn
The book ends with Huck saying he's going to "light out for the Territory ahead of the rest." But there's a part of me that wonders if he won't decide to go back home to the Widow's with his friends. * Write a short paragraph or two to make another &...
April 7, 2011

English
Huck struggles to decide what he should do when his heart and his conscience pull him in different directions. He eventually decides to go with his heart. * Write a short essay explaining why you agree or disagree that this was a good strategy for Huck to pursue. * Look back ...
April 7, 2011

world history
Well, actually I think this was not present day.
April 5, 2011

world history
English and French are official languages of Canada. Laws promote French culture and language. Literature may be published in French and English. They made Quebec a separate country.
April 5, 2011

world history
Which is NOT a way in which the Canadian government attempted to cooperate with French separatists?
April 5, 2011

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