Friday

July 31, 2015

July 31, 2015

Total # Posts: 1,801

**Chemistry Urgent**

Calculate the DHof for the following reaction under standard state conditions: 2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) + O2(g) Given the following information: Ag2S(s) ÄHof = -32.6 kJ/mol H2O(l) Ä Hof = -285.83 kJ/mol H2S(g) ÄHof = -20.6 kJ/mol
*March 9, 2014*

**Chemistry Urgent**

Consider the following problem: Target: 2NOCl(g) ? N2(g)+ O2(g)+Cl2 (g) ?Hrxn= ? Steps: 1. 1/2 N2(g) + 1/2 O2(g)? NO(g) ?H= 90.3 kJ 2. NO(g) + 1/2 Cl2(g) ? NOCl(g) ?H= -38.6 kJ As you determine the ¥ÄHrxn value for the target equation above, what must be done to step ...
*March 9, 2014*

**Chemistry**

Consider the following problem: Target: 2NOCl (g) ¡æ N2 (g) + O2 (g) + Cl2 (g) ¥ÄHrxn= ? Steps: 1. ¨ö N2(g) + ¨ö O2(g) ¡æ NO(g) ¥ÄH= 90.3 kJ 2. NO(g) + ¨ö Cl2(g) ¡æ NOCl(g) ¥Ä H= -38.6 ...
*March 9, 2014*

**algebra (solve for y)**

woops there is a 2 in front of the first e&(2y). Proper equation: 0=2e^(2y)-e^(y)
*March 4, 2014*

**algebra (solve for y)**

0=e^(2y)-e^(y) Need to solve for y here, don't understand why answer is -ln(2) in the book. Thanks.
*March 4, 2014*

**poetry part 2**

I think its C.Peace
*March 2, 2014*

**Physics**

No, youa are wrong. It is not mVa = .1m(Va-V) + .9mVb it is mVa = (-).1m(Va+V) + .9mVb it is not 2, it is 20/9
*March 1, 2014*

**Math**

what is the sum of the solutions of the equation |2x-7|=11? A) -9 B) -7 C) 5 D) 7 E) 9 ***What is the most efficient way to solve this?
*March 1, 2014*

**English**

Can you help me identify the subordinate clause in the sentence The camel is the only pack animal that can stand the test of the Sahara. Would the subordinate clause be "than can stand the test of the Sahara?"
*February 25, 2014*

**English**

Having trouble identifying subordinate clauses in the following sentences. 1. The airplane that we saw can land in only a few airports in this country. I think for this sentence the subordinate clause would be "that we saw." 2. The coin that I purchased is an old ...
*February 25, 2014*

**English**

To your question Which of these clauses cannot stand alone? The hummingbird is the only bird that can fly backward, I would say "that can fly backward" cannot stand alone.
*February 25, 2014*

**English**

In the sentence, The hummingbird is the only bird that can fly backward, the verb is either "is" or "can fly" I cannot determine what the subordinate clause is.
*February 25, 2014*

**English**

Find the subordinate clause in the sentence The hummingbird is the only bird that can fly backward.
*February 25, 2014*

**English**

I think the correct sentence is number 2, "on the hill."
*February 25, 2014*

**Geometry**

According to the given information, segment AB is parallel to segment DC and segment BC is parallel to segment AD.. Construct diagonal A C with a straightedge. It is congruent to itself by the Reflexive Property of Equality. ________________. Angles BCA and DAC are congruent ...
*February 25, 2014*

**chemistry**

A gas with a volume of 6.65 L at a pressure of 1.22 atm is allowed to expand until the volume raises to 54 L. What is the new pressure (in atm)?
*February 23, 2014*

**Biology**

A typical organism that might occupy a forest in the southwestern United States is a a. Cactus b. grizzly bear c. parrot d. polar bear
*February 20, 2014*

**ITT Tech**

Simplify -(-15x)-3x
*February 18, 2014*

**Personal Dimensions of Education**

seem
*February 16, 2014*

**Maths**

Calculate the simple interest on R3 500 invested at 6% per annum for 3 years
*February 9, 2014*

**literary**

What emotion is associated with weariness? I'm supposed to analyse the emotions that are expressed within a text, and the beginning is happy and jubilant while the second half adopts a more weary mood, so i'm wondering what emotion would i use?
*February 8, 2014*

**math**

least to greatest 3/4 2/3 7/8
*February 4, 2014*

**Math**

A math teacher wishes to use groups of 5 and/or 7 students for a class assignment. When she tries to make assignments she notices that it cannot be done with the number of students in her class. However, if the number of students were any larger, the assignments could be made...
*January 30, 2014*

**physics**

Wavelength in a Closed Column Here is the prompt: We place a speaker near the top of a drinking glass. The speaker emits sound waves with a frequency of 3.75 kHz. The glass is 14.1 cm deep. As I pour water into the glass, I find that at certain levels the sound is enhanced due...
*January 30, 2014*

**Math**

How do I give a BIG THANK YOU TO MS SUE?
*January 28, 2014*

**Math**

Hi Ms Sue Thank you sooooooo much I kinda thought that was it but........ there are 6 blueberry right?
*January 28, 2014*

**Math**

I was out of school for 4 days! I tried to catch up but....I need help with There are 20 muffuns on a plate. 2/5 are chocolate. 3/10 are vanilla. How many chocolate how many vanilla? Challenge: Rest are blueberry how many blueberry? Can somebody answer this for me and show me ...
*January 28, 2014*

**chemistry**

equation for joules needed to increase water temp
*January 28, 2014*

**ASAP Help thankies everybody History**

Ms. Sue? is it a?
*January 28, 2014*

**ASAP Help thankies everybody History**

No it is a
*January 28, 2014*

**IT WEB SYSTEMS**

Provide a real-life application in which you manipulate data in a string or an array format. Describe the situation, manipulation process, and data result.
*January 27, 2014*

**Science**

I read the article already, but I don't understand what is the answer. I am not sure if the question is referring to the the complementary base or something?
*January 24, 2014*

**Science**

RNA is to U(Uracil) as DNA is to ? a. Cytosine (don't think so) b. Guanine (don't think so) c. Thymine d. Adenine
*January 24, 2014*

**math**

If a test has 25 questions with 4 possible answers per questions, how many possible answer combinations are there?
*January 24, 2014*

**Question help**

Reading titles and headings, and trying to get an overview of what lies ahead in a reading passage is called: A:questioning B:relating C:surveying D:reciting
*January 21, 2014*

**Geometry**

Use the figure of a square pyramid to answer the following questions. a.) Find the total surface area of the pyramid. b.) Find the volume of the pyramid. Do not answer them. I know How to find the answer. Surface Area is squared right?
*January 17, 2014*

**Geometry**

A person who is 5 feet, 6 inches (5.6 feet) tall casts a shadow (from N to S) that is 12 feet long. The distance along the ground from the person (N) to the flagpole (G) is 18 feet. Find the height of the flagpole (FG) showing all calculations.
*January 17, 2014*

**math**

ann uses three 1/4 size strips to model 3/4. She wants to use 1/8 size strips to model an equivalent fraction. how many 1/8 size strips will she need?
*January 16, 2014*

**geometry**

A person who is 5 feet, 6 inches (5.5 feet) tall casts a shadow (from N to S) that is 12 feet long. The distance along the ground from the person (N) to the flagpole (G) is 18 feet. Find the height of the flagpole (FG) showing all calculations. What is the length of SP and PF?
*January 14, 2014*

**Ashford**

Assimilation
*January 11, 2014*

**Science**

How much heat is absorbed when 500g of water goes from 25 to 35 degrees
*December 29, 2013*

**Biology**

How many chromosomes are in a human blood cell? What term describes a picture of the human chromosomes arranged in pairs?
*December 13, 2013*

**Physics**

Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons.
*December 11, 2013*

**math**

If the circumference of a circle is 16 pi, what is its area ?
*December 6, 2013*

**math**

In triangle XYZ, the measure of angle Y is twice the measure of angle X, and the measure of angle Z is three times the measure of angle X, what is the measure of angle Y ?
*December 6, 2013*

**Math**

-1,0,1,0,1,2,3,6,11,20,37,68,125,230,423,778...
*December 5, 2013*

**Biology**

Do breeders observe the genotypes or phenotypes in their organisms?
*December 5, 2013*

**geometry**

Kendra is flying a kite 35 feet in the air. The angle of depression from the kite to where Kendra holds the string is 32 degrees. If Kendra holds the string 3 feet off the ground, what is the distance from her hands to the kite? Round your answer to the nearest tenth.
*December 3, 2013*

**Physics**

y= -0.42 The region isn't between the wires
*December 2, 2013*

**elementary statistics**

A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of students is different, and so he examines a random sample of midterm grades (listed below). At 0.05 alpha level can it be conculded that the variance...
*November 30, 2013*

**elementary statistics**

A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of students is different, and so he examines a random sample of midterm grades (listed below). At 0.05 alpha level can it be conculded that the variance...
*November 30, 2013*

**Trigonometry**

Cot θ = 1/Tan θ = Cos θ/Sin θ = - SQRT of 15/7 =
*November 28, 2013*

**Trigonometry functions**

find the reference angle of -11pi/3
*November 28, 2013*

**Trigonometry functions**

sketch the angle 2pi/3
*November 28, 2013*

**Trigonometry**

Write sin(125°) in terms of its cofunction. Make sure your answer is a function of a positive angle.
*November 28, 2013*

**Trigonometry**

Write sin (125°) in terms of its cofunction. Make sure your answer is a function of a positive angle
*November 28, 2013*

**Trigonometry**

find the exact value of sin 2α if cos α=4/5 (α in quadrant I)
*November 28, 2013*

**Trigonometry**

find the exact value of tan 2β if sin β=5/13 (β in quadrant II)
*November 28, 2013*

**Trigonometry**

evaluate cot 2x = 5/12 with 0<=2x<=pi find cos x and sin x and tan x?
*November 28, 2013*

**Trigonometry**

if cot 2θ = 5/12 with 0≤2θ≤π find cos θ, sin θ, tan θ
*November 28, 2013*

**Trigonometry**

if cot 2x = 5/12 with 0<=2x<=pi
*November 28, 2013*

**Trigonometry**

Write sin(125°) in terms of its cofunction. Make sure your answer is a function of a positive angle.
*November 28, 2013*

**pre-alg**

Oh, I get it. The question is asking you what scale you are going to use for your scale drawing. Here is the definition from my Geometry Book: Scale- a ratio that describes how the dimensions in a scale drawing are related to the dimensions of the actual object. An example of ...
*November 25, 2013*

**Finance**

If the bank holds $65 million in deposits and currently holds bank reserves such that excess reserves are zero, what required reserves ratio is implied?
*November 18, 2013*

**Science**

What is the structure that directs chromosome movement during mitosis and aids in the formation of the microtubule scaffolding that pulls on the chromosomes? a. Centrosome (maybe) b. Nucleosome (don't think so) c. Spindle (maybe) d. Cytokinesis(don't think so)
*November 8, 2013*

**basic rigging trade terms quiz**

an eyeabolt is a piece of rigging hardware wiht a ------ which means it has a series of spiral grooves cut into it.
*November 6, 2013*

**basic rigging trade terms quiz**

if the ----- is showing, the sling is not safe for use.
*November 6, 2013*

**Math**

26-17+15
*November 5, 2013*

**Mythology**

Where did the box with Perseus and Danae float to?
*October 27, 2013*

**Mythology**

According to some stories, Daedalus had a talented nephew who was pushed off a tower. Minerva/Athena caught him and changed him into a Perdix. What kind of bird is a Perdix?
*October 27, 2013*

**Science**

Thanks.
*October 27, 2013*

**Science**

I don't know I think B.
*October 27, 2013*

**Science**

So what is the answer?
*October 27, 2013*

**Science**

Ribosome: protein synthesis: mitochondria: What comes next? a. cell support b. energy release (don't think so) c. nutrient storage (don't think so) d. protein transport
*October 27, 2013*

**Science**

What plant cell organelle contains its own DNA and ribosomes?
*October 27, 2013*

**Biology**

What happens when a substance dissolves in the watery solution outside of a cell and equilibrium is disrupted. a. Water from the cell will move into the solution b. water from the solution will move into the cell c. the pores in the cell membrane will become clogged with the ...
*October 24, 2013*

**History**

Thanks for all your help Ms. Sue!
*October 21, 2013*

**History**

What are the midway islands, Ms. Sue?
*October 21, 2013*

**History**

Also, I have another question: During World War I what is a place that has strategic value in the middle of the Pacific Ocean? a. Hawaii b. Midway Islands
*October 21, 2013*

**History**

Ms.Sue I am wondering if you know where the Titanic left in Great Britain?
*October 21, 2013*

**History**

Well, I asked in class today and the teacher said the questions were right. So, I was thinking that the titanic was sailing between the US and England. I think the 3 countries that make up the triple entente are france, russia, and great britain
*October 21, 2013*

**History**

The Titanic was a ship that sailed between which 2 countries? a.Britain b.United States c.England What 3 countries make up the triple entente? a.France b.Russia c.Great Britain d.England Each word can only be used once for each question.
*October 21, 2013*

**History**

What 3 slogans used by the government to try to get people to conserve? What law makes it a crime to help the enemy during war? What law makes it a crime to criticize the government during wartime?
*October 18, 2013*

**quantum physics**

doing 8b
*October 18, 2013*

**quantum physics**

ya, this time
*October 18, 2013*

**quantum physics**

got my error 8d ƒÆ= 0 and ϕ = 2bt check and tell me if i am right? 8a ƒÆ = pi/3 and ϕ = 0
*October 18, 2013*

**quantum physics**

sorry for that @ss01 your phi is wrong that i am for sure it cannot be 0
*October 18, 2013*

**quantum physics**

D ƒÆ = 2Bt phi = pi/2 C - pi/3; 2*B*t do you need explanation ?
*October 18, 2013*

**vocabulary**

Shortly before the Russian Revolution, an eccentric man namen Rasputin became (1)
*October 17, 2013*

**Biology**

What role do vesicles play in processing the proteins in the Golgi Apparatus? a. They create the proteins.(No) b. They modify the proteins. (No) c. They store the proteins. (Maybe) d.They transport the proteins. (Maybe)
*October 15, 2013*

**Biology**

What role do vesicles play in processing the proteins in the Golgi Apparatus? a. They create the proteins.(No) b. They modify the proteins. (No) c. They store the proteins. (Maybe) d.They transport the proteins. (Maybe)
*October 15, 2013*

**Geometry**

Write an equation of the line that pass through point P and is perpendicular to the line with the given equation. P(3,5); y=4
*October 14, 2013*

**Geometry**

The actual question is : Write an equation of the line that pass through point P and is perpendicular to the line with the given equation. P(3,5); y=4
*October 14, 2013*

**Geometry**

Sorry, I meant to say perpendicular instead of parallel.
*October 14, 2013*

**Geometry**

Write an equation of the line that pass through point P and is parallel to the line with the given equation. P(3,5); y=4
*October 14, 2013*

**Quantum Physics**

seems you are doing a nice deal out here
*October 12, 2013*

**Quantum Physics**

jason what happened?
*October 12, 2013*

**physics**

A police car, whose siren has a natural frequency of 620Hz, moves away from a wall and towards a stationary observer at a speed of 30km/h. What is the beat frequency perceived by the observer? If the observer stands between the car and the wall, what beat frequency does he ...
*October 9, 2013*

**Physics**

The coefficient of static friction between the 2.90 kg crate and the 35.0° incline of Figure P4.41 is 0.260. What minimum force F must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?
*October 7, 2013*