Saturday

November 28, 2015
Total # Posts: 65

**chemistry!**

a) Find the pH at the equivalence point when 40ml of 0.025 M of methylamine (NH2CH3 and Kb = 4.4x10^-4) is titrated with 0.025 M HCl. b) The Kf for the complex ion Ag(NH3)2+ is 1.7x10^7. The Ksp for AgI is 1.5x10^-16. What is the molar solubility of AgI in a solution that is 2...
*November 17, 2015*

**physics**

The potential energy (in J) of a system in one dimension is given by:2 3 U(x) = 5 − x + 3x − 2xWhat is the work done in moving a particle in this potential from x = 1 m to x = 2 m? Whatis the force on a particle in this potentialat x = 1 m and x = 2 m? Locate the ...
*September 27, 2015*

**algebra**

The loudest sound measured one night during a hockey game was 112 dB. The loudest sound measured during a hockey game the next night was 118 dB. What fraction of sound intensity of the second game was the sound intensity of the first game?
*May 22, 2015*

**AP Chemistry **

Suppose you have added 200.0 mL of a solution containing 0.5000 moles of acetic acid per liter to 100.0 mL of 0.50000 M NaOH. What the is the final pH? The Ka of acetic acid is 1.77 x 10^-5.
*March 8, 2015*

**Chemistry**

some one help please!
*February 5, 2015*

**Chemistry **

Because of the changing color of the solution as the following reaction proceeds, the rate law can be determined by measuring the rate of disappearance of the permanganate ion (MnO4-). 2MnO4-(aq)+ 5H2C2O4(aq) + 6H+(aq) -> 2Mn2+(aq) + 10CO2(g) + 8H2O(l) The following initial...
*February 5, 2015*

**Math**

I am not going to give you the answer but since you know the area, You need to see what 12 x ___ = 84. Its quite simple! (;
*January 27, 2015*

**US History**

Yeah, Its A. :)
*January 27, 2015*

**L.A.**

He may be real!
*January 27, 2015*

**chemistry**

No no no! The one above is not correct.
*January 27, 2015*

**geometry **

both trust me im good at math im a college student
*November 8, 2014*

**math**

who doesn't now what 1+1 is even a kindergarten nows that its 2 gosh
*November 8, 2014*

**geometry**

a possible probability of 6 coins
*November 8, 2014*

**Physics**

I found the velocity for the string. Now what?
*April 29, 2014*

**Physics**

A 1.0 m long string is fixed at both ends and has a tension of 80N. The mass of the string is 2 gm. Find the third harmonic of the sound emitted by this string. a. 50 Hz b. 100 Hz c. 200Hz d. 300 Hz
*April 29, 2014*

**Language arts Mrs.Sue check Plz**

1.a then cause i know it is not a resource
*April 22, 2014*

**Algebra - Domain**

Find the domain of the function: 0=((y-4)/(8-sqrt(y)))
*March 4, 2014*

**physics**

yo mom
*January 29, 2014*

**Science**

Another connexus student just read your book stop cheating first we upgrade our system then you guys find another way to cheat your way out well guess what "Annabelle" we have traced your address and now are going to be expelled frome homeschool academics of ...
*May 7, 2013*

**Chemistry**

A mixture is prepared by adding 25.0 mL of 0.185 M Na3PO4 to 34.0 mL of 0.140 M Ca(NO3)2. (a) What mass, in grams, of calcium phosphate will be formed? What will be the concentration of each of the ions in the mixture after the reaction? (b) [Ca2+] (c) [PO43-] (d) [Na+] (e) [...
*March 2, 2013*

**math**

The pizza restuarant has a special off today: 3 pizzas for $25. The soccer team is ordering pizza, if each player eats 1/4 pizza, how many players will 3 pizzas serve?
*February 27, 2013*

**Science**

A car went from a stop position to 50 km/hr in 5 seconds. What is the accelleration?
*December 16, 2012*

**Physics**

A 7900- helicopter accelerates upward at 0.90 while lifting a 1100- frame at a construction site. A) What is the lift force exerted by the air on the helicopter rotors? B)What is the tension in the cable (ignore its mass) that connects the frame to the helicopter? C)What force...
*October 23, 2012*

**Physics**

A 7900- helicopter accelerates upward at 0.90 while lifting a 1100- frame at a construction site. A) What is the lift force exerted by the air on the helicopter rotors? B)What is the tension in the cable (ignore its mass) that connects the frame to the helicopter? C)What force...
*October 23, 2012*

**principles of management**

Imagine that you were the CEO of Apple computer. Recognizing the importance of developing strategies to adapt to environmental and economic uncertainty, what steps would you take to scan your business environment? Can you keep track of all aspects of the environment? If not ...
*October 8, 2012*

**Intermediate Algebra**

Ms Sue I thought this site is for HOMEWORK HELP SPECIFICALLY,if it is not ,this site is strictly false advertising
*April 4, 2012*

**Intermediate Algebra**

find the product..-9x(x^3-3x^2+3x+9)
*April 4, 2012*

**Physics**

An R-C circuit is driven by an alternating voltage of amplitude 110 V and frequency w. Define V0 to be amplitude of the voltage across the resistor. The resistance of the resistor is 1000 ohms and the capacitance of the capacitor is 1 microFarad. What is V0 if w=10 rad/s? Any ...
*March 6, 2012*

**calculus**

Please check this for me: the lenght l, width w, & height h of a box change with time. At a certain instant the dimensions are l=1m & w=h=2m. L and W are increasing at a rate of 2m/sec while H is decreasing at a rate of 2m/sec. At that instant, find the rate at which the ...
*February 27, 2012*

**Physics**

The distance between two successive crests of a certain transverse wave is 1.42 m. Eight crests pass a given point along the direction of travel every 19.5 s. Calculate the wave speed. Answer in units of m/s
*February 15, 2012*

**math**

A painter needs to paint a circular floor that is 24 yards in diameter. A gallon of paint cover 59 square yards. How many gallons of paint is needed to cover the floor?
*December 7, 2011*

**Com/155**

my assignment is to Write a 150- to 200-word paragraph to explain how purpose, audience, tone, and content impact academic writing.
*August 5, 2011*

**Science **

An alien spaceship is revolving around a spherical asteroid in a very low circular orbit. The period of revolution of the spaceship is 15 minutes. A research party of the alien students lands on the steroid and drills a tunnel through it along a diameter. They then launch a ...
*June 18, 2011*

**statistics in psychology**

An analysis of the combined SAT scores (Verbal + Math) of a sample of psychology majors at one school indicated that the mean was 939 and the standard deviation was 166. Show your calculations used the answer the following two questions. a. A special psychology research ...
*May 12, 2011*

**chemistry**

a 1.04 l sample of gas at 759 mm hg pressure is expanded until its volume is 2.24 l. what is the pressure in the expanded gas sample at constant temperature
*May 4, 2011*

**Music**

List at least 2 similarities and 4 differences found through comparing the music, the music traditions, performing, etc., of Europe and Sub-Saharan Africa.
*February 18, 2011*

**Internet OSI**

Hi, Can anyone tell me if I have picked the correct TRUE statements .. From the pairs of terms given below, choose the option that offers, in the correct order, the most appropriate pair for the blanks in the following statement. _______DHCP_ is a protocol that enables ...
*January 30, 2011*

**IT**

Im sorry I was only asking for some help :-0(
*January 30, 2011*

**IT**

Hi, Can anyone tell me if I have picked the correct TRUE statements .. From the pairs of terms given below, choose the option that offers, in the correct order, the most appropriate pair for the blanks in the following statement. _______DHCP_ is a protocol that enables network...
*January 30, 2011*

**Biochemistry**

What is the concentration of HNO3 in a solution that has a pH of 3.4?
*January 24, 2011*

**physics**

What are the x and y components of a velocity vector of magnitude 1.00 x 10^2 km/h and direction of 240?
*January 20, 2011*

**Math**

If a sphere has radius 5 m. what is the volume of the sphere?
*January 18, 2011*

**physics**

A box of mass 65 kg hangs motionless from two ropes, as shown in the diagram above. The angle is 40 degrees. Choose the box as the system. The x-axis runs to the right, the y-axis runs up, and the z-axis is out of the page. What is the y-component of the gravitational force ...
*January 17, 2011*

**math**

The area of a rectangular plot 24 feet long and 16 feet wide will be doubled by adding an equal distance to each side of the plot. What is the distance added to each side?
*April 22, 2010*

**geometry**

what is the formula for a cylinder
*March 4, 2010*

**Math**

millimeter
*March 4, 2010*

**calc**

But isn't it supposed to be 2/x^3 - 2/(x-2)^3?
*November 1, 2009*

**calc**

What are the first and second derivatives of y = (1/x^2)-(1/(x-2)^2)?
*November 1, 2009*

**Calculus**

When c changes, the slope of cubic function changes? How is it changing?
*November 1, 2009*

**Pre-Algebra**

The whirl series
*September 15, 2009*

**history**

the Iron Age impacted history in many different ways. that question is pretty vague. One of the big impacts is that the Iron Age lead to the development of steal. Weapons became stronger and armor started to become more important in battles. think of it as an early industrial ...
*October 22, 2008*

**english composition**

When we pay our four or five bucks and seat ourselves at tenth-row center in a theater showing a horror movie, we are daring the nightmare.
*October 11, 2008*

**math riddle ALGEBRA WITH PIZZAZZ**

a^2+7a+10=0
*April 6, 2008*

**Long Division of Polynomials**

(2
*February 11, 2008*

**Chemistry - Equations**

you can dane in you try come on you can do it!! keep trying!
*January 31, 2008*

**Math**

5x6x7=210 outfits
*January 7, 2008*

**science**

I need to know the defination of the word niche in my own wordes. can anyone help me?
*January 7, 2008*

**science**

how does the human reprodutive system work?
*November 3, 2007*

**Math**

Find the derivative of: ln(2x/x+1) the answer is 1/x(x+1) but i can't seem to solve it that far. ln [2x/(x+1)] = ln 2 + ln (x) - ln(x+1) Add the derivatives of each term and you get 1/x - 1/(x+1) = [(x+1) - x]/[x(x+1)] = 1/[x(x+1)]
*March 18, 2007*

**Economics**

The economy consists of the following: - working-age population: 20M - full time employment: 8M - part-time employment: 2M (1M of whom wish they had full-time jobs) - unemployment: 1M If 0.6M of those unemployed are frictionally, structurally, and seasonally unemployed, what ...
*February 28, 2007*

**Economics**

The task of my assignment was to calculate the Nominal GDP, given the GDP deflator and the Real GDP. This is what I got. GDP Deflator Real GDP Nominal GDP 0.9 600 540 1.0 600 600 1.1 600 660 The second part of the question asks what is happening in terms of real growth in the ...
*February 7, 2007*

**Economic**

All of the following refer to the Economy of Ecoland: - GDP in 1990 is $1000 - Annual inflation is 5% per year from 1991 - 1995. From 1996 - 1999, inflation is 10% per year - Real GDP grows at 2% every year a) Calculate real GDP from 1990 to 1999 b) Calculate nominal GDP in ...
*February 7, 2007*

**English**

Please diagram the following sentence: The nickname for the state of Virginia is "Mother of Presidents." My grandaughter just called and wanted to know what was the verb in the above sentence. "is" is the verb in that sentence. nickname (subject) is ( ...
*February 4, 2007*

**iron and sulphur**

it means do your own brief sentence about the reaction
*December 5, 2006*

**pigskin**

I need to finish Week 11, 2007, or else I will FAIL! HELP ME!!!!!!!!!!!!1
*October 30, 2006*

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