Sunday

April 26, 2015

April 26, 2015

Total # Posts: 80,621

**physics**

An electrical power plant generates electricity with a current of 50A and a potential difference of 20,000 V. In order to minimize the power losses due to the high current heating up the line, a transformer steps up the potential difference to 500,000 V before it is ...
*April 12, 2015*

**Physics**

The pressure of water flowing through a 6.5×10−2−m -radius pipe at a speed of 1.8m/s is 2.2 × 105 N/m2 What is the flow rate of the water? What is the pressure in the water after it goes up a 5.2−m -high hill and flows in a 5.0×10−2&#...
*April 12, 2015*

**L.A**

Thank you
*April 12, 2015*

**L.A **

Which sentence contains a participle phrase? A. she wanted to spend time writing. B. her job is giving the attic dwellers their food. C. quickly snatching up the coat, she ran to her room. D. to get along well requires cooperation. C ? please check
*April 12, 2015*

**Physics**

A car with a total mass of 1800kg (including passengers) is driving down a washboard road with bumps spaced 5.0m apart. The ride is roughest—that is, the car bounces up and down with the maximum amplitude—when the car is traveling at 6.1 m/s.What is the spring ...
*April 12, 2015*

**physics- Space**

How does the amount of dark matter in the Universe compare to the amount of ordinary matter? In what way is dark matter similar to ordinary matter? In what way are they different? I got the first one which dark matter is 23% of the universe. But for the other questions, the ...
*April 12, 2015*

**Math help!**

(sqrt(x^2-x)+3)(sqrt(x^2-x)-2)=0 two solutions a) sqrt(x^2-x)=-3 b) sqrt(x^2-x)=2 square both sides... a) x^2-x-9=0 b) x^2-x-4=0 which leads to a) x=(1+-sqrt(1+36))/2 b) x=(1+-sqrt(1+16))/2 check my thinking, I hope I didn't error in the algebra.
*April 12, 2015*

**Acct.101**

Post to the account Stock Investments. Common Stock Shares Cost Co.A
*April 12, 2015*

**algebra**

The examples in the slideshow, Division by Zero, which is located in the media section of Chapter 1, indicate that there is a different answer when 0 is divided by a number, rather than when a number is divided by 0.
*April 11, 2015*

**pre - CALCULUS**

Lmao thank you so much , your the best :)
*April 11, 2015*

**Business**

Social enterprises can earn a profit and free markets do not?
*April 11, 2015*

**Business**

How are social enterprises different from free market enterprises?
*April 11, 2015*

**Accountant Journal Entry Ledger**

paid $53000 cash for building and land. The building had a fair market value of $45000. Here is my answer. Date May 1. Debit Credit Account Transaction : Cash $53000 Building and Land. $45000
*April 11, 2015*

**Calculus**

The altitude (i.e., height) of a triangle is increasing at a rate of 2 cm/minute while the area of the triangle is increasing at a rate of 4 square cm/minute. At what rate is the base of the triangle changing when the altitude is 10.5 centimeters and the area is 97 square ...
*April 11, 2015*

**Statistics**

A school psychologist decided to separate some classes by gender to see if learning improved. She looked at studded scores on the final exam and obtained the following information: Students in boy-girl classrooms obtained an average of 71.4 on their final exams with a standard...
*April 11, 2015*

**businesss**

imagine you managing a tour guided business, explain by means of describing and examples how, institutional, physical and international environment affects your tourist guide business?
*April 11, 2015*

**Civics**

ok thanks!
*April 11, 2015*

**Civics**

A??
*April 11, 2015*

**Civics**

9th amendment The enumeration [listing] in the Constitution, of certain rights, shall not be construed to deny or disparage others retained by the people. Based on this text, what can you infer about the founding Father's concerns in forming a constitution? They wanted to ...
*April 11, 2015*

**Ms. Sue**

Can u recheck all of my wrong civic questions? I already redid the answer. Thx a whole bunch
*April 11, 2015*

**Civics**

Thanks sooooooooooooooo much!!!!!!
*April 11, 2015*

**Civics**

Is it A?????
*April 11, 2015*

**Civics**

Use what you know about the case of Gideon v. Wainwright to determine which of the following phrases is etched on Gideon's gravestone. Each era finds an improvement in law for the benefit of mankind. Poverty is its own protection against abuses of government. The question ...
*April 11, 2015*

**Civics**

Thx again:)
*April 11, 2015*

**Civics**

What is the most important reason for providing an accused criminal the Miranda warning? If citizens are not provided their Miranda rights, they may give the officers incriminating information that connects them to a crime. If someone is convicted of a crime, and he wasn't...
*April 11, 2015*

**Civics**

U do not understand how much help u are giving me!!!! :):)
*April 11, 2015*

**Civics**

Yay! Thx
*April 11, 2015*

**Civics**

Which of these book titles best describes the United States v. Nixon case and its significance? Not Above the Law - Nixon's illegal actions resulted in a Supreme Court ruling requiring sharing of the private tapes*** Stealing the Presidency - The Supreme Court ruled ...
*April 11, 2015*

**Civics**

finally 1 right straight!!! Thx a bunch for ur help + time!!
*April 11, 2015*

**Civics**

Which of the following represents a benefit of the Second Amendment to citizens of the United States? It allows citizens to organize into groups for peaceful protests. It frees communities from crime. It helps citizens provide a defense against foreign invaders.*** It provides...
*April 11, 2015*

**Civics**

i go with all of D above
*April 11, 2015*

**Civics**

ahh.. now i understand!! Silly me:)
*April 11, 2015*

**Civics**

Then D. i do not understand this one that much!
*April 11, 2015*

**Civics**

I shall go with B.
*April 11, 2015*

**Civics**

A group that supports legislation that supports deer hunting education and a group that promotes protection of wildlife would most likely agree on which of the following? Deer feel pain and fear when injured. Deer season should be shortened.(Either this one) More children ...
*April 11, 2015*

**SS**

Put ur question (what qualities are valued in south korea) in gogle search and click second link(not letting me put link! srry) its name is South Korea - Language, Culture, Customs and Etiquette ... Good luck!
*April 11, 2015*

**Civics**

ok thank u
*April 11, 2015*

**Civics**

OK I know u may be mad at me know so sorry. Would it be Students deserve the best resources and conditions to promote learning.
*April 11, 2015*

**Civics**

A teacher plans to join a strike to protest current teaching conditions. The principal at the school where she works is opposed to the strike. Which of the following is a statement they could both agree with? School hours should be shortened to allow more teacher planning time...
*April 11, 2015*

**Civics**

thnaks!! Yay
*April 11, 2015*

**Civics**

Then would it be Government records on voting history and offices held? I thought it would be D 1st but i do not know i guess i was not sure!!
*April 11, 2015*

**Civics **

Which of the following is the most accurate source of information that voters can use when evaluating a political candidate's qualifications? A commentator's views on the candidate's voting history Campaign literature published by the candidate*** Discuss the ...
*April 11, 2015*

**maths**

the base if an isosceles triangle is 4/3cm. the perimeter of the triangle is 4 2/15cm. what is the length of either of the remaining equal sides
*April 11, 2015*

**Physics**

The velocity of the Moon relative to the center of the Earth can be approximated by varrowbold(t) = v [−sin (ωt) xhatbold + cos (ωt) yhatbold], where v = 945 m/s and ω = 2.46 multiplied by 10−6 radians/s. (The time required for the Moon to complete ...
*April 10, 2015*

**English(Poem)**

Why does the world seem so unfair, Screaming can't even make a repair, I don't even have any friends, I can't even comprehend, Is it any good?
*April 10, 2015*

**Math**

Thank you
*April 10, 2015*

**Math**

Simplify the expression 6P3. A. 30 B. 120 C. 360 D. 720 Is the answer B? Thank you
*April 10, 2015*

**Math**

austin collected 30 9/10 kilograms of glass for recycling. exactly 2/3 of glass he collected was blue. what was the total amount in kilograms of blue glass austin collected?
*April 10, 2015*

**Math**

Thank you Ms. sue.
*April 10, 2015*

**Finance**

A bank is willing to give you a Rs1,000,000 home mortgage at 12% interest, compounded semiannually. The loan will be amortised over 25 years, but the interest rate is fixed for only the first 5 years. What is the monthly mortgage payment for the first five years? Rs 1000,000...
*April 10, 2015*

**Chem**

What is the change in entropy when 6.03 mL of liquid benzene (C6H6, d = 0.879 g/mL) is combusted in the presence of 26.8 L of oxygen gas, measured at 298 K and 1 atm pressure? (R = 0.0821 L · atm/(K · mol)) 2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O(l); ∆S&...
*April 10, 2015*

**pschy**

What is the latest point in the childhood years at which behavioral interventions are likely to be relatively effective in treating children with conduct disorder? Choose one answer. a. toddlerhood b. early childhood c. preadolescence d. late adolescence
*April 10, 2015*

**chemistry**

determine the pressure in a 0.34 liter balloon if the temperature is 35 celsius and the balloon contains 0.0233 mol of an ideal gas.
*April 10, 2015*

**english**

I identify noun in the following sentence They worked for months together
*April 10, 2015*

**Math**

35=18
*April 10, 2015*

**Math**

it includes every single number that exists from 5- negative infinity any number including decimals that are below five
*April 10, 2015*

**Calculus**

A snowball melts at a rate of 2 cubic inch an hour. When the volume is 36π in^3, how fast is the radius shrinking? V=(4/3)(pi)(r^3)
*April 10, 2015*

**Math**

what that who answered is an idiot the answer is A and D
*April 10, 2015*

**Math**

If so Then he questions asks what share some qualities not all qualities. so you looking for answers where x can be number less than 3 like in the original equation x>3 so then you can say that answers B,D and A are all correct A because it is the same inequality B because ...
*April 10, 2015*

**Math**

is it multiple choice?
*April 10, 2015*

**Calculus**

Nvm I know it
*April 10, 2015*

**Calculus**

The outside radius of a thin open-ended cylindrical shell (of height 10 feet) is 12 feet. If the shell is 1 inch thick, use differentials to approximate the volume of the region interior to the shell.
*April 10, 2015*

**French **

I would appreciate it if you could take the time to double check my answers. Merci beaucoup! 26. Il faut que tu mettes la nappe. Je l’ai ___(1)___ sur le ___(2)___. Je veux aussi ___(3)___ tu ___(4)___ les ___(5)___ à rayures. Nous allons ___(6)___ dans les ___(7)...
*April 9, 2015*

**Pschology 202**

Who suggested people become more socially selective as they progress through middle adulthood and beyond. (Points : 1) Erik Erikson Laura Cartensen Sigmund Freud Mary Ainsworth
*April 9, 2015*

**Pschology 202**

True or false? According to socioemotional selectivity theory, emotional regulation becomes the primary social need in middle adulthood. (Points : 1) True False
*April 9, 2015*

**Pschology 202**

True or False? Based on your learning from this week’s Mindsets YouTube video (2011), an example of fixed mindset about intelligence would be if a teacher sat her students in a classroom according to IQ. (Points : 1)
*April 9, 2015*

**Calculus**

During a certain epidemic, the number of people that are infected at any time increases at rate proportional to the number of people that are infected at that time. 1,000 people are infected when the epidemic is first discovered, and 1,200 are infected 7 days later. Write and ...
*April 9, 2015*

**Division**

Maria cut a pizza into 8 equal slices she put a slice of pizza on 3 plates what is the measure of the angle for the angle for the slices that are left?
*April 9, 2015*

**Calculus**

The number of people that hear a rumor follows logistic growth. In a school of 1500 students, 5 students start a rumor. After 2 hours, 120 students have heard about the rumor. Recall: dy/dx=ky(1-Y/L) and y=L/(1+be^(-kt)) I found the logistic growth equation to be 1500/(1+299e...
*April 9, 2015*

**Calculus**

Can you explain why it's simplified to e^-2ydy=2xdx. I dont understand why it's e^negative 2y
*April 9, 2015*

**Calculus**

Find the particular solution (solved for y) for the differential equation dy/dx=2x/e^(2y) satisfying y(0)=1.
*April 9, 2015*

**chemistry**

how many grams of CaCI would be required to produce a 8.5M (molar) solution with a volume of 2.0L
*April 9, 2015*

**chemistry**

how many grams of CaCI would be required to produce a 85M (molar) solution with a volume of 2.0L
*April 9, 2015*

**Math**

The capacity of a 1 cm cube is 1 mL. How many 1 cm ice cubes would you need to melt to fill a 1.5 L jar?
*April 9, 2015*

**Trigonometry**

2sin^2(x )+38 cos(x) + 2.6=0
*April 9, 2015*

**CALCULUS **

Consider the function f(x)=9x3−4x5. Let F(x) be the antiderivative of f(x) with F(1)=0. Then F(4) =
*April 9, 2015*

**Calc**

Evaluate the indefinite integral (3/x^6)-4√(x^2)
*April 9, 2015*

**math /fraction**

a container of fruit punch contains one half apple juice, one third pineapple juice and one sixth orange juice. If the container contains 12 cups how many cups are pineapple juice?
*April 8, 2015*

**Geometry help**

If a regular triangle has a perimeter of 30sqrt3 what is its apothem?
*April 8, 2015*

**Chemistry **

Calculate the molar solubility of Mg(OH)2 in the following solvents: (i) 8.60×10−2M MgCl2 (ii) 3.70×10−2M KOH(aq) Please help!!!
*April 8, 2015*

**arrays and an expanded algorithm**

29×47
*April 8, 2015*

**Chemistry**

What is the value of Ksp?
*April 8, 2015*

**Chemistry**

Calculate the molar solubility of Mg(OH)2 in the following solvents: (i) Pure Water (ii) 8.60×10−2M MgCl2 (iii) 3.70×10−2M KOH(aq) How should i solve this problem?
*April 8, 2015*

**Science**

When you make a pedigree and it says Theos wife Mary is a purebred right-handed person what does purebred mean
*April 8, 2015*

**Chemistry**

@DrBob222 .......Thanks. It worked.
*April 8, 2015*

**Chemistry**

Using the Henderson-Hasselbalch equation, should i write this: pH= -log ka + log(0.168/0.106) PH= -log(5.6*10^-10) + log(0.168/0.106) PH=9.45
*April 8, 2015*

**Chemistry**

For a solution that is 0.168M NH3 and 0.106M NH4Cl calculate the following. [OH-] [NH4+] [Cl-] [H30+]
*April 8, 2015*

**need HELP PHYSICS!!**

a) Calculate the P.E. a pile driver has if it is raised 4.5 meters by a mechanical winch. If the 510 kilogram pile driver is allowed to fall freely, what would its velocity be at ground level. b) A 4.2 kg mortar shell is fired out of a mortar with a velocity of 120 m/s. What ...
*April 8, 2015*

**Physics**

F=m*g F/g=m 100/9.8=10.2 kg
*April 8, 2015*

**Math**

Why not?
*April 8, 2015*

**Math**

can prisms that have the same height and same base perimeter have different volumes?
*April 8, 2015*

**Math**

Assuming it's linear. Dy/dx -> (13-9)/(2-1)=4=k. 9=4*1+m -> m=5 y=4x+5
*April 8, 2015*

**LA plz help ms.sue**

thanks u ur awesome
*April 8, 2015*

**LA plz help ms.sue**

2.Which excerpt from the play best supports the answer to the reason Anne spends time with Peter? A I’m sorry Mother. I’m going to Peter’s room. I’m not going to let Petronella Van Daan spoil our friendship. B I mean, every time I go into Peter’s room...
*April 8, 2015*

**exponential equations**

A colony of Streptococcus bacteria has a current population of 450 organisms. This particular strain has a doubling time, d , of 25 minutes. Calculate the future population after 2.5 hours.
*April 8, 2015*

**exponential equations**

Listeria has a current population of 400 organisms. After 72 minutes the population increased to 6400 organisms. Calculate the doubling time, d, of the bacteria.
*April 8, 2015*

**exponential equations**

A colony of Salmonella bacteria has a current population of 1000 organisms. If this particular strain has a doubling time, d, of 18 minutes, calculate the future population after 180 minutes.
*April 8, 2015*

**Math**

Travis is making 5 lasagna using 12 cups of cheese. Which number represents the amount of cheese he will use per lasagna?
*April 8, 2015*