Wednesday
May 27, 2015

Posts by LISA


Total # Posts: 3,125

Simmons
A 2.0 kg box rests on a plank that is inclined at an angle of 65° above the horizontal. The upper end of the box is attached to a spring with a force constant of 17 N/m, as shown in the figure. If the coefficient of static friction between the box and the plank is 0.30, ...
May 8, 2015

SOC120
Florynce Kennedy would agree with which statement? A. Making abortion illegal is the result of continual undermining of women’s rights. B. If men could get pregnant, abortion would be illegal. C. Women have had historical power to make decisions about legislation that ...
May 2, 2015

chemistry
What is the resulting concentration when 250.0 mL of 0.65 M Magnesium Sulfate is added to 800.0 mL of water?
May 1, 2015

Math
How do you tell whether a number is a perfect square from the exponents of its prime factorization? Explain why this works.
April 29, 2015

math
555 / 3 = 185 Jason must sell 185 carrots.
April 29, 2015

micro
We assume that when a firm hires additional workers, the marginal physical product of labor will: 1. decrease because each worker now has less capital and other resources to work with. 2. decrease because the new workers are likely to be less able than the previously hired ...
April 21, 2015

English
nope^^
April 19, 2015

Science
1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed***** Amplitude and wavelength Amplitude and frequency 2. Sound proof ...
April 15, 2015

Chemistry
I am working on a five-part question and I just need help with the last part. I'm not sure where to begin with that one. I pasted the question and answers (for a-d) to the other parts below. Thank you! Consider the proposed mechanism for the reaction between nitrogen ...
April 14, 2015

Business
Applegate Industries is planning to expand its production facility in a few years. New plant construction costs are estimated to be $4.50 per square foot. The company invests $850,000 today at 8% interest compounded quarterly. How many square feet of new facility could be ...
March 25, 2015

math
You are almost there. You have everything right except the 10% off. $210*.10=21 $210-21= $189.
March 25, 2015

Science
hi could you please help with the following question: In humans, free ear lobes is dominant to attached ear lobes. A male who is pure breeding for free ear lobes marries a woman who is pure breeding for attached ear lobes. What type of ear lobes will the children. (Including a...
March 21, 2015

chemistry
To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 2.8-L bulb, then filled it with the gas at 1.20atm and 22.0 ∘C and weighed it again. The difference in mass was 3.9g . Identify the gas.
March 19, 2015

statistics
(10 pts) Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. Researchers found that visually impaired students ...
March 17, 2015

chemistry
a solution is prepared by dissolving145 grams of NaNO3 in 100 grams of water at 80*C. the solution is then cooled to 10*C. how much of the solute will come out of the solution?
March 9, 2015

chemistry
As a result of mineral erosion and biological activity, phosphate ion is common in natural waters, where it often precipitates as insoluble salts, such as Ca3(PO4)2. Calculate Qsp when [Ca2+]init = [PO43-]init = 2.161 10-6 M in a given river. Ksp of Ca3(PO4)2 = 1.2 ✕ 10...
March 6, 2015

chemistry
If silver phosphate has a Ksp of 2.28e-16 at a certain temperature, what is the molar solubility of silver phosphate at the same temperature?
March 6, 2015

MATHS
In this addition each letter represents a digits. Different letters represent different digits. LASS +LAD ---------- LOVE I GOT SO MANY POSSIBLE RESULTS FOR THIS QUESTION EG. 4511 + 452=4963 5422 + 541 = 5963 Could you please explain how to do this question? The correct answer...
March 6, 2015

Physics
Bob starts spinning his hammer at a rate of 2.00 rad/s^2. At the same time, he starts running towards Jim at 4.00 m/s^2. The distance from the end of the hammer to Bob's elbow is 1.20 m. If Bob takes 3 seconds before he launches the hammer at Jim, what is the resultant ...
March 4, 2015

Algebra
either
March 3, 2015

Algebra
13 1/3 divided by 22 1/2
March 3, 2015

grammar
The task was to add commas in the correct places. Did I place them correctly in the sentence below? One of the greatest classes he ever took was after school, as many of his friends left, he had to go to band practice, play the drums, guitar, and saxophone. (Personally, I ...
March 2, 2015

grammar
The task is to find the subject pronoun. The sentence is: Tell her that her parents will pick her up. My thought is that the subject pronoun would be the implied "You" before the word tell. Is that right or wrong? Thanks!
March 2, 2015

English
What sentence type is this? Gas prices are very high right now, consumers are looking for cars that get high miles per gallon.
February 22, 2015

algebra
One number is twice a second number. The sum of those numbers is 45. Find the numbers.
February 17, 2015

math
The perimeter of a rectangular blanket is 18 feet.What could be it's length and width?
February 16, 2015

MATHS
A proper fraction with numerator 2 lies between a quarter and a half. Write down the greatest such fraction.. Thanks for your help
February 11, 2015

maths
Seven guns all commence firing together at a target but they continue to fire at interval 2,3,5,7 and 12 minutes. After how many hours do all five guns fire at the same time as they did in the beginning? Thanks for helping
February 11, 2015

PSC
If y is directly proportional to x and y = 65 when x = 33, find y if x = 44 . (Round off your answer to the nearest hundredth.)
February 9, 2015

stats
On a test of motor coordination, the population of average bowlers has a mean score of 24, with a standard deviation of 6. A random sample of 30 bowlers at Fred's Bowling Alley has a sample mean of 26. A second random sample of 30 bowlers at Ethel's Bowling Alley has a...
February 8, 2015

MATHS
Long ago when apples were cheap, two ladies went to market and each sold 30 apples on different stalls; Mrs Rosy sold hers at 2 for a penny, Mrs Juicy at 3 for a penny. The next week they decided to share a stall and sell 60 apples between them at 5 for 2 pennies. At the end ...
February 8, 2015

SS
I can't use this .
February 7, 2015

SS
Ms. Sue Can You Help Me Answer This Question? During the early 1800s, the United States tried to make peace with other countries in order to grow and develop. Give an example of one of these peace efforts and briefly explain what it hoped to accomplish.
February 7, 2015

math/algebra
A total of 770 tickets were sold for the school play. They were either adult tickets or student tickets. There were 70 more student tickets sold than adult tickets. How many adult tickets were sold?
February 5, 2015

L.A
Abby it is B
January 27, 2015

MATHS
Pipe A can fill a swimming pool in 10 hours.Pipe B can fill the same pool in 8 hours. If pipe A and pibe B work together for the first 2 hours and then pipe B stops working, how long will it take pipe A to finish the job?
January 26, 2015

chemistry
Thank you very much!
January 25, 2015

chemistry
Diborane (B2H6) is a highly reactive boron hydride, which was once considered as a possible rocket fuel for the U.S. space program. Calculate ∆H for the synthesis of diborane from its elements, according to the equation 2 B (s) + 3 H2 (g) → B2H6 (g) using the ...
January 25, 2015

math
Need help with inequality. If pet store sells at least 3 times more male birds as female birds, and x represents female birds and y represents male birds. Would the inequality be written as y >=3 ? Why or why not? Thanks
January 25, 2015

chemistry
Thanks! Here's my answer, but I don;t know if it is correct: 5000KJ=50,000g/55.85 g/mol*25.08j/ mol k *(T high-15C); 5000kj=22452.99 (T high-15C); (T high-15C)=5000kj/22452.99J mol–1 K–1/1000, T high-15C=222.69, T high=22.69+15=238C
January 24, 2015

chemistry
Calculate the final temperature if 50 kg of iron is heated from 15.0°C with 5000 kJ of heat. The molar heat capacity of iron is 25.08 J mol–1 K–1.
January 24, 2015

Mat 116 - Algebra
Simplify x^2*x^3*x^4
January 18, 2015

Physics
A car accelerates at a rate of 5m/s2 for a period of 4.2 seconds and then moves at a constant speed for 8 seconds more. How far did it travel?
January 17, 2015

algebra 2
What is a quartic function with only the two real zeros given? x = -4, x = 1
January 7, 2015

math problem solving
joe has a collection of 35 dvd movies. he receives 8 of them as gifts. joe bought the rest of his movies over 3 yrs. if he bought the same number of movies each year, how many movies did joe buy last year?
January 5, 2015

chemistry
2Mg + O2 ==> 2MgO 1g Mg/24.3g=0.041 molMg, 0.041mol/2mol=0.0205 mol Mg; 0.5L O2/22.4L=0.0223 molO2; So Mg is the LR(0.0205mol Mg<0.0223 molO2); 0.041 molx40.3g MgO/mol=1.65g MgO2. 0.022molO2-0.0205molMg =0.0018 mol O2 inexcess. Thanks!
December 30, 2014

chemistry
0.041mol Mg-0.022mol O2=0.019mol Mg inexcess. Thank you!
December 30, 2014

chemistry
Thanks a lot! Here's original question: If 1.00 of magnesium is ignited in a flask containing 0.500 liter of oxygen at STP, how many grams of magnesium oxide are produced? My work: Mg + O2 ------> MgO2, is this right?
December 30, 2014

chemistry
Mg + O2 ------> MgO if 1.00 g of magnesium is ignited in a flask containing 0.500liters of oxygen at STP, how many grams of magnesium oxide areproduced? what is the name and the amount of the reactant inexcess? My work: 1g Mg/24.3g=0.041 mol Mg; 0.5L O2/22.4L=0.022 mol O2; ...
December 30, 2014

Chem
Mg + O2 ------> MgO if 1.00 g of magnesium is ignited in a flask containing 0.500liters of oxygen at STP, how many grams of magnesium oxide areproduced? what is the name and the amount of the reactant inexcess? My work: 1g Mg/24.3g=0.041 mol Mg; 0.5L O2/22.4L=0.022 mol O2...
December 30, 2014

math
total attendance is 520
December 17, 2014

math
3.75a + 2.50s = 1518.75 what is a and s equals to?
December 17, 2014

biology
Explain how a scientist would use DNA or protien sequences taken from three different organisms to create a cladogram
December 17, 2014

Why am i bad at Reading Comprehension - English
i am good at English but every time we have a reading comprehension, i either fail it or get a bad mark. WHY. all i have to do is read it and answer question of what i just read. But i still get a bad mark. How can i prepare myself for the next one. i wan tot be good at it. By...
December 17, 2014

biology
Explain how a scientist would use DNA or protien sequences taken from three different organisms to create a cladogram?
December 17, 2014

Geometry
By the water cooler in an office, there are conical paper cups. The radius is about 1.2 inches and the height is about 3.5 inches. How much water does the cup hold if it is filled to the top?
December 13, 2014

Math
5 Σ 4(3/4)^k k=0 Find the sum of the series. Round the answer to three decimal places.
December 12, 2014

PHI 208
Hill uses this technique in the middle of the article to examine ideas about the human’s place within nature A)He presents specific factual examples that demonstrate harm to the environment. B)He presents a fictional example of a perfect island. C)He asks the reader to ...
December 8, 2014

math
A fair 6 sided dice is marked with the numbers 1, 2, 3, 4,5, and 6. The dice is rolled three times and the results are added. How many different sums are possible?
December 8, 2014

math
Francis is baking cookies. The recipe for chocolate chip cookies calls for 2 2/3 cups of flour, the recipe for peanut butter coolies calls for 2.75 cups, the recipe for ginger snaps calls for 5/2 cups. If francis wants to use as little flour as possible, which cookie whould he...
December 8, 2014

math
An animal shelter has 24 large cages and 42 small cages that need to be cleaned. The director of the shelter wants to divide the work so that each person cleans the same number of large cages and the same number of small cages. What is the largest number of people he can use ...
December 8, 2014

lea
book title of the watsons go to birmingham 1963
December 5, 2014

algebra
For each of the rational functions find: a. domain b. holes c. vertical asymptotes d. horizontal asymptotes e. oblique asymptotes f. y-intercept g. x-intercepts 1. f(x)= x^2+x-2 / x^2-x-6
December 4, 2014

Geomatry
For each of the rational functions find: a. domain b. holes c. vertical asymptotes d. horizontal asymptotes e. oblique asymptotes f. y-intercept g. x-intercepts 1. f(x)= x^2+x-2 / x^2-x-6
December 4, 2014

science
Sarah wants to use a model to get an idea of how far away the stars are. She uses a marble to represent the Earth, and she places a basketball 1 m away to represent the Sun, which is the nearest star. If Sarah wishes to keep the distances between objects in her model at an ...
December 2, 2014

Maths
Angelo shot 4 darts at a target. Three landed in area A and one landed in area B giving him a total score of 16. Dan shot 4 darts too. One landed in A and three landed in B giving a total of 24. What score would be made hitting B three times?
November 20, 2014

Math
Find the exact value and approximate. 11^ -x+4 = 5^ 3x-2 (-x+4)log11 = (3x-2)log5
November 11, 2014

pharmacy math
Prepare 180 g of Lotrimin 0.05% cream. In stock, you have 200 g each of Lotrimin 0.025% cream and Lotrimin 0.1% cream. How much is needed of each?
November 10, 2014

chemistry
so what is the exact anwser?
November 9, 2014

Science
Calculate the kinetic energy change in the water that occurs when 10,000lb/hr flow in a pipe that is reduced from a diameter of 2 in. to a diameter to 1 in.
November 7, 2014

college math
1. A farmer has 1000 acres of land on which corn, wheat, or soybeans can be grown. He also knows that each acre of corn requires 5 days of labor and yields a profit of $20. Each acre of wheat requires 9 days of labor and yields a profit of $40. Each acre of soybeans requires ...
November 6, 2014

physics
Force constant= Force/ Extension = (1×9.8)/ (1/100) N/m =9.8×100=980N/m
November 6, 2014

physics
Force constant= Force/ Extension = (1×9.8)/ (1/100) N/m =9.8×100=980N/m
November 6, 2014

chemistry
What does a slash (/) mean in chemistry?
November 6, 2014

math
how to write 15>3x into word problem?
November 3, 2014

English
what would a declarative sentence be? Would this be right It is a nice day today.
November 2, 2014

English
Hi Miss Sue, Here is the final draft can you check it for me? Thank you Dear Grandmother Irene Happy Birthday to you on this special day! Shine like a star today on your Birthday. Have a wonderful time at your Celebration Party. Wishing you all the best on your Birthday. How ...
November 2, 2014

English
Think I got it now is this right?
November 2, 2014

English
Miss Sue what would the sentence be May all your dreams come true be?
November 2, 2014

English
Miss Sue is this correct thank you
November 2, 2014

English
I'll be glad to comment on your sentences. • English - Lisa, Sunday, November 2, 2014 at 6:40pm Birthday Card Happy Birthday to you on this special day! (E) Shine like a star today. (D) How old are you today? (In) Have a wonderful time at your celebration party (Imp...
November 2, 2014

English
WHat would an imperative sentence be?
November 2, 2014

English
I think I need an imperative sentence?
November 2, 2014

English
thank you Miss Sue did I use all the four sentences?
November 2, 2014

English
Happy Birthday to you on this special day (E) Shine like a star today on you Birthday (D) How old are you today? (In) Have a wonderful time at your celebration party. can you help me out im struggling
November 2, 2014

English
MIss sue can you check this for me?
November 2, 2014

English
Birthday Card Happy Birthday to you on this special day! (E) Shine like a star today. (D) How old are you today? (In) Have a wonderful time at your celebration party (Imp) May all your dreams come true. Wishing you all the the best One year old and wiser!! Have a great day today
November 2, 2014

English
Need help writing a birthday card with 4 types of sentences? declarative, interrogative imperative and exclamatory?
November 2, 2014

chemistry
how many milliliters of10.0m Hc(aq) are needed to prepare 890.0 ml of 1.00m Hcl(aq)
November 2, 2014

Math
Worldwide annual sales of all cellphones were approximately −10p + 1,600 million phones when the wholesale price was $p. At what wholesale price should cellphones have been sold to maximize annual revenue?
November 2, 2014

MATHS
Two yummy bars plus three delish bars cost a total of $7.50. Three yummy bars plus two delish bars cost a total of $8.00. How much does one yummy bar cost?
November 1, 2014

finance
(Defining capital structure weights) Templeton Extended Care Facilities, Inc. is considering the acquisition of a chain of cemeteries for $400 million. Since the primary asset of this business is real estate, Templeton's management has determined that they will be able to ...
October 30, 2014

finamce
(Defining capital structure weights) Templeton Extended Care Facilities, Inc. is considering the acquisition of a chain of cemeteries for $400 million. Since the primary asset of this business is real estate, Templeton's management has determined that they will be able to ...
October 30, 2014

physics
Object A with mass 6.7 kg is moving at 5.1 m/s. Object B with mass 7.4 kg is moving at 4.7 m/s. Object B impacts Object A, and they stick together. With what velocity do the objects move?
October 29, 2014

math
if you have a gas tank that is 37" X 10"X 121/2" how many gallons of gas will it hold ?
October 23, 2014

physics
A swing sits 5 m above the ground when it is still. John lifts the swing and releases it. At its lowest point, its velocity is measured to be 5.53 m/s. How high above the ground did John lift the swing?
October 21, 2014

History
What was Thomas Jefferson's stance about how when the government fails to protect their rights, it is their duty to overthrow the government and establish a government that is designed to protect their rights
October 16, 2014

English
What was Thomas Jefferson's stance on the Declaration of Independence? What is a pro and con of the Declaration of Independence Please Help Me
October 16, 2014

psychology
question 5 ansewer is c
October 15, 2014

Introductory Chemistry
Calcium chloride is 36.11% calcium by mass. How many grams of calcium are in 40.0 grams of calcium chloride
October 15, 2014

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