Friday
December 19, 2014

Posts by linda


Total # Posts: 1,274

Science
How have humans observed heredity over time and how has that perception changed as major paradigm shifts in the discipline took place?
December 19, 2014

Science
Explain the concept of public trust as the author uses it. Resnik, D. (2011). Scientific Research and the Public Trust. Science & Engineering Ethics, 17(3), 399-409
December 19, 2014

science
Thank you so much Ms. Sue!
December 19, 2014

science
Resnik, D. (2011). Scientific Research and the Public Trust. Science & Engineering Ethics, 17(3), 399-409
December 19, 2014

science
Explain the concept of public trust as the author uses it.
December 19, 2014

science
How have humans perceived heredity over time and how has that perception changed as major paradigm shifts in the discipline took place.
December 19, 2014

Math
Raymonds age plus his sister janice's age is 48 years. Janice's age is half Raymonds age plus six years. How old is Raymond? How old is janice
December 16, 2014

social studies
how do i write this?
December 10, 2014

social studies
•Alexander's campaigns greatly increased contacts and trade between East and West, and vast areas to the east were significantly exposed to Greek civilization and influence. Successor states remained dominant for the next 300 years during the Hellenistic period. •...
December 10, 2014

social studies
how did the spreading of greek culture during the reign of alexander the great impact the historical development of the known world?
December 10, 2014

Math
Sally wants to put lights all around her windows. She has 15 windows all the same. Each one is 3 feet long and 2 feet wide. How many strands of lights will she need to buy if each strand covers 10 feet? How much will it cost her if each strand of lights costs $6.99? Don't ...
December 9, 2014

Algebra
(-5a^2 / b^3)^-1. For a = -4. B= 2 I know you plug in the numbers for a and b but don't know what to do after this is my first time trying a problem like this .
December 4, 2014

calculus 2
Find all points of intersection of the given curves. (Assume 0 ≤ θ ≤ 2π. Order your answers from smallest to largest θ. If an intersection occurs at the pole, enter POLE in the first answer blank.) r = 1 − cos θ, r = 1 + sin θ
December 2, 2014

Math
At the start, a biologist counts, m, microbes in a sample. Every day after that, the number of microbes in the sample is multiplied by N.
December 1, 2014

physics
A metal wedge can be used to split wood pieces. This one has a base only 2 inches across. The length of the wedge is 12 inches. The largest force you can exert with your hammer is 500lbs. As you pound your wedge into the wood, what is the largest sideways force it can exert on...
November 29, 2014

budget
How would Jenny best allocate her income for the month What categories and in what amounts should Jenny allocate her funds to reflect a balanced monthly budget? Include the main categories as well as examples of other categories
November 20, 2014

math
38+7=45 break apart ones to make a ten ?
November 17, 2014

math
Show how to make one addend the tens number. Problem: 22+49= 71 new problem.
November 14, 2014

Juvenile Justice
Studies show that early association with deviant peers is especially prevalent among youth who are from dysfunctional families that: A. provide little supervision or monitoring. B. are single-parent households. C. have at least one domineering parent. D. have three or more ...
November 14, 2014

Juvenile Justice
Why is the military style of juvenile boot camps so popular? A. It projects the image of getting tough with juvenile crime. B. It contributes to the overall evaluation of juvenile boot camps, which is extremely positive. C. It helps boot camps to be effective at reducing ...
November 14, 2014

statistics question
Thank you in advance for anyone able to help me with this... In a sample of 67 randomly selected students, 27 favored the amount being budgeted for next year's intramural and interscholastic sports. Construct a 98% confidence interval for the proportion of all students who...
November 12, 2014

college algebra
how to solve equation in the real number system, x^4 +12x^3 +10x^2-9x+9x+22=0
November 9, 2014

college algebra
hw to solve equation in the real number system, x^4 +12x^3 +10x^2-9x+9x+22=0
November 9, 2014

physics
If a 648 N body on a carpeted surface has a μs of 0.86 and a μk of 0.68, what amount of force will be required to start dragging the body across the floor? Make sure to report your answer with the correct number of significant figures
November 5, 2014

data analysis w/spreadsh w/lab
Please explain what the outcome of "" means
November 4, 2014

science
3. One calorie is the energy required to raise one gram of water one degree Celsius. Since we use the joule as the standard measurement of energy, 1 calorie = 4.184 J. If a pot is placed on the stove with 2.4 liters of water at a temperature of 27°C, how many joules are ...
October 30, 2014

Math
1/(a-1) + 1/b = c solve for a
October 1, 2014

Math
Aiden drew a square that has an area greater then Dalton's rectangle. what could the sides of austin's square be?
October 1, 2014

Physics
A ball is thrown vertically upward with an initial speed of 11 m/s . Then, 0.67 s later, a stone is thrown straight up (from the same initial height as the ball) with an initial speed of 25 m/s . How far above the release point will the ball and stone pass each other? The ...
September 30, 2014

redan. english
I am thinking of a word that is in the ip family and means a baby bird
September 18, 2014

physics
The resistivity of silver is 1.59 × 10-8 Ω·m. What is the resistance of a section of 12 gauge wire (diameter 0.2057 cm) that is 8.60 m long?
September 14, 2014

physics
To what temperature must you raise a copper wire, originally at 20.0°C, to double its resistance, neglecting any changes in dimensions? (Does this happen in household wiring under ordinary circumstances?)
September 14, 2014

college chemistry
Express the concentration of a 0.0620M aqueous solution of fluoride, F-, in mass percentage and in parts per million. assume the density of the solution is 1.00g/mL.
September 11, 2014

statistics
It is time to go shopping for new clothes for school! You have found a catalog for new clothes. You decide that you will buy ve di erent shirts, four di erent pants, two di erent jackets, and three di erent shorts. The catalog has twelve di erent types of ...
September 8, 2014

Computer Programming
Need Python pseudocode and program that asks the user to enter the number of packages purchased. The program should then display the amount of the discount (if any)and the total amount of the purchase after the discount. Software co. sells a pkg that retails for $99. Quantity ...
September 6, 2014

college algebra
1.build the fraction x+5/x+3 to an equivalent fraction whoes denominator is x^2-x-12 2. add and simplify: x/x+2 +4x-3/x^2-4
September 2, 2014

Math
Mike can complete a project in 60 minutes͵ and if Mike and Walter both work on the project͵ they can complete it in 40 minutes. How long will it take Walter to complete the project by himself?
July 30, 2014

physics
A string with linear mass density μ = 0.0279 kg/m under a tension of T = 183 N is oriented in the x-direction. Two transverse waves of equal amplitude and with a phase angle of zero (at t = 0) but with different frequencies (ω = 3420 rad/s and ω/3 = 1140 rad/s) ...
July 13, 2014

Penn foster 986825rr
According to the analyses of the stories you were asked to read a pair of silk stocking best represents literary c. Symbolism is wrong.
July 11, 2014

pol201
The heart of Martin v. Hunter’s Lessee was
June 26, 2014

english
Thank you Ms. Sue!
June 19, 2014

english
And no matter how(5)______(benign)my manner, she seemed to view me as some sort of threat. At one point, she became irate and yelled, "That's(6)_____(redundant)I don't have time to answer the same question twice." When I asked her about serious issues, her ...
June 19, 2014

engkish
benign,blase,comprise,condescend,facade,glib,haughty,libel,pseudonym and redundant. When a famous actress arrived in town to work on a movie, an editor asked me to interview her. Because this was my first interview assignment, I felt far from_______(blase) about it. Instead, I...
June 19, 2014

english
benign,blase,comprise,condescend,facade,glib,haughty,libel,pseudonym and redundant. When a famous actress arrived in town to work on a movie, an editor asked me to interview her. Because this was my first interview assignment, I felt far from_______(glib) about it. Instead, I ...
June 19, 2014

english
choose from: benign,blase,comprise,condescend,facade,glib,haughty,libel,pseudonym and redundant. Believing he was better than everyone else at the supermarket, Dan was so________(Haughty) that he would rarely ___(benign) to speak to other cashiers. One author was accused of ...
June 18, 2014

SCI 207
All three of my questions go together. Sorry I did not put it in order. The two processes are evaporation and condensation using a jar and petri dish experiment.
June 1, 2014

SCI 207
2. Which processes are not represented? How the model could be altered to include these process.
June 1, 2014

SCI 207
1. Which water cycle processes are represented in this model and by what components?
June 1, 2014

SCI 207
3. How would the “weather” be affected if the water was at a decreased temperature? What about at an increased temperature?
June 1, 2014

physics
An electron has an initial speed of 2.95 × 105 m/s.If it undergoes an acceleration of 2.7 × 1014 m/s^2, how long will it take to reach a speed of 5.94 × 105 m/s?
May 20, 2014

math
The2010 census shows that the population of New Jersey increased by 4.5%. If the 2010 population was 8,791,894, what was the population in 2000?'
May 5, 2014

Statistics
σ = sqrt[ P * ( 1 - P ) / n ] = sqrt [(0.8 * 0.2) / 100] = sqrt(0.0016) = 0.04 z = (p - P) / σ = (.73 - .80)/0.04 = -1.75. What type of formula is this problem?
May 4, 2014

Statistics
I am a big shot research scientist at Washington University where I am using 2ebrafish to study neuronal migration. My graduate students measured 40 fish and found that the mean length of the fish sampled was 3.7 cm with a standard deviation of 0.5 cm. Construct a 95% ...
May 4, 2014

Statistics 220
suppose 59 cars start at a car race, how many ways can the top car finish the race?
April 30, 2014

chemistry
Suppose 95.0 mL of HCl gas at 25 ºC and 707 torr is bubbled into 298 mL of pure water. What will be the pH of the resulting solution, assuming all the HCl dissolves in the water?
April 24, 2014

biology
The two main structures that make up a kidney are the A. hilus and cortex B. cortex and medulla c. renal pelvis and medulla
April 22, 2014

Algebra 2
Ordered pair is from an inverse variation: (3,1/3) how do I find the constant of variation?
April 22, 2014

Physics
A lost shipping container is found resting on the ocean floor and completely submerged. The container is 6.0 m long, 2.2 m wide, and 2.3 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from the surface. When ...
April 19, 2014

Algebra 2
How do I solve these inequalities: e^3x>e^x-1 -6log (subscript of 4) x > -24 & how do I solve these: 8^x+1=3 e^x+2=50 8logx=16 I really don't understand how to solve these so can someone please explain them to me?
April 17, 2014

Chemistry URGENT
I need help understanding oxidation I have a problem that states: The proper assignment of oxidation numbers to the elements in the compound LiAsO3 would be: I think the answer is +1 for Li, +3 for As and -2 for O. I think I am confusing oxidation with ionic charge. PLEASE HELP
April 6, 2014

Chemistry URGENT/DR BOB
Dalton's Law of Partial Pressure consider the following container of helium at 45C. intially the valve is closed. After the valve is opened what is the pressure of the helium gas. your start points are 2.00 atm and 9.00L. after opening the valve you have 3.00 atm and 3.00L...
April 1, 2014

Chemistry URGENT
consider the following container of helium at 45C. intially the valve is closed. After the valve is opened what is the pressure of the helium gas. your start points are 2.00 atm and 9.00L. after opening you have 3.oo atm and 3.00L. The answer is 2.25 atm what formula did you ...
April 1, 2014

Chemistry URGENT
Could someone let me know if I have balanced these equations correctly. balanced equation of the reaction of iron and oxygen to produce iron(ii)oxide. 2Fe + O2 = 2FeO Also if the balanced equation of the reaction of iron and oxygen to produce iron(iii)oxide. 4Fe+302 = 2Fe2O3 ...
March 27, 2014

Chemistry URGENT
I need help balancing a equation for the combustion of cellulose in oxygen to produce carbon dioxide and water vapor. C6H10O5 = 6CO +5H2O I know this is not correct but I don't know what else to do to get this to balance. Thanking you in advance.
March 27, 2014

chemistry
I do not understand how to right a balanced equation for the combustion of cellulose in oxygen to produce carbon dioxide and water vapor. I know that cellulose is C6H10O5 but I don't understand how to balance. Thanking you in advance for your help.
March 27, 2014

Chemistry
I am having a hard time figuring out how to write a balanced equation for the reaction of iron and oxygen to produce iron(II) oxide. I also need a balanced equation for the reaction of iron and oxygen to produce iron (III) oxide. I would appreciate any and all help. Thanking ...
March 27, 2014

Chemistry
220 J to kilojoules 350 kj to calories 97.0 kcal to joules 35.0 cal to kilocalories How do I convert them?
March 18, 2014

algebra
kaylas cell phone plan as a fixed fee of $45
March 17, 2014

basic college math
need the answer to track A offers a flat fee of $25 and $.40 per mile. truck b offers a flat fee of $30 and $.25 per mile
March 16, 2014

Chemistry
How much water can be produced from the complete reaction of 3.64 L of oxygen gas, at STP, with hydrogen gas? Answer in units of g
March 14, 2014

Statistics
What is 0.095 on the z-score table or where
March 9, 2014

Chemistry
The pressure on a gas at -58 degrees Celcius is doubled, but its volume is held constant. What will the final temperature be in degrees Celsius?
March 9, 2014

Chemistry
Before a trip from New York to Boston, the pressure in the automobile tire is 2.1 atm at 280 K. At the end of the trip, the pressure gauge reads 1.88 atm. What is the new Celsius temperature of the air inside the tire?(Assume tires with constant volume). This is how I did it: ...
March 9, 2014

College Chemistry
Please help me. I have worked on this for 2 days. I don't understand the ratio of this equation.4Na+O2 to 2Na2O. for question: How many grams of Na2O are produced when 81.ograms of Na reacts?
March 7, 2014

English
What reasons relating to 1984 means the the reality tv show World's stricktest Parents should be banned.
March 6, 2014

Chemistry
Oh okay, my bad, and thank you for your help
March 5, 2014

Chemistry
Okay, I understand that part, but if I use P1V1=P2V2, what happens to the temperature that they gave me? What do I do with it?
March 5, 2014

Chemistry
Why are n and R the same? Isn't n the mol's and R the ideal gas constant?
March 5, 2014

Chemistry
A gas occupies a volume of .350 L at a temperature of 18.0 degrees Celsius and a pressure of 980.0 torr. What will be the volume of this gas at standard conditions? Please explain how to do it.
March 5, 2014

Chemistry
Write the reaction for the synthesis of water vapor from hydrogen gas and oxygen gas and balance it. If you used 0.022 mol hydrogen, how many mol of oxygen would you need in order for it to completely react and have no limiting reactant? Can you please explain in detail how to...
March 5, 2014

AP World History
1.How did the Atlantic Revolutions influence the development of new states and ideologies? 2. Compare the challenges to the 18th century Muslim world and the causes of the Atlantic Revolutions?
March 4, 2014

World History
1.How did modern states emerge? 2.What challenges confronted the centralization of Muslim states during the 18th century? 3.How did the different Muslim states respond to these challenges? If you can at least tell me where to find it that would be great.
March 4, 2014

Chemistry
What would be the volume of 5.0 moles of gas at STP? Can you explain how to do it please?
March 3, 2014

Chemistry
How do you find the [OH-] of a 1x10^-3 M solution of NH4Cl?
February 20, 2014

Chemistry
If 0.10 mol of Zn(s) is reacted to 150.0 ml of 1M HCl, what is the concentration of Zn+2 in the solution after the reaction is complete? Assume the solid zinc does not affect the volume.
February 16, 2014

Calculus
isn't it 2cos(x)
February 13, 2014

Calculus
it asks for h'(0) not h'(2). I got the answer 5 but the key says the answer is 1
February 13, 2014

Calculus
Let h(x) = 5g(x) - 3x^2 + 2 sin(x) - 7x, and suppose g'(0) = 2, find h'(0)
February 13, 2014

Algebra
George built a rectangular pen for his rabbit such that the length is 1 ft more than four times the width. If the perimeter is 292 ft, what are the dimensions of the pen?
February 10, 2014

college chemistry
kilocalories released when 20.0 g of steam condenses at 100 degrees C. and the liquid cools to 0 degrees C.
February 7, 2014

college chemistry
sorry, Damon. this is a word problem that is on my homework. I think they want to know the kilocalories on this.
February 4, 2014

college chemistry
to calulate the calories(kcal) in 1/2 cup of soft ice cream that contains 16g carbs, 17g fat, 5g protein. do I multiply 16g x 4 for carbs 17g x 9 for fat 5g x 4 for proteins? then do I do conversion factors for grams to 1/2cup? am I on the right road?
February 4, 2014

college chemistry
to calulate the calories(kcal) in 1/2 cup of soft ice cream that contains 16g carbs, 17g fat, 5g protein. do I multiply 16g x 4 for carbs 17g x 9 for fat 5g x 4 for proteins? then do I do conversion factors for grams to 1/2cup? am I on the right road?
February 4, 2014

college chemistry
Ifwater cools to body temp.37 degrees C., how many kilocalories of heat could be transferred to sore muscles?
February 4, 2014

Chemistry
If 20mL of a 0.100 M NaOH solution are required to titrate 0.25 grams of an unknown acid, what is the equivalent mass of the acid? If the acid actually contains 3 moles of H+ per mole of acid what is the molecular mass of the acid?
February 4, 2014

Physics
How would the force of gravity between two masses be affected if the separation distance between them were,assume F2 represents the new force and F1 represents the original force.(a)quadruple the original distance F2/F1= also one-half the original distance F2/F1
February 1, 2014

college chemistry
How many megajoules are released when 9.0 gal of gasoline burns. how do I start to do this problem, and what are the steps to get there. thank you
February 1, 2014

college chemistry
DrBob222. when you move ice from zero to final T. Do you add 100 cal.?
January 30, 2014

college chemistry
a 42 piece of ice at 0.0 C is added to a sample of water at 8.0 C. all of the ice melts and the temperature of the water decreases to 0.0 C. how many grams of water were in the sample.
January 30, 2014

chemistry
a 42 piece of ice at 0.0 C is added to a sample of water at 8.0 C. all of the ice melts and the temperature of the water decreases to 0.0 C. how many grams of water were in the sample.
January 30, 2014

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