Thursday

January 29, 2015

January 29, 2015

Total # Posts: 233

**Chemistry**

Using the following data 1. CU3+ + 2e- ---> Cu+ E1= 1.28V 2. CU2+ + e- ---> Cu+ E2= 0.15V 3. Cu2+ + 2e- ----> Cu(s) E3= 0.34V 3. Cu+ + e- ----> Cu (s) E4= 0.52V calculate the standard reduction potential for the reaction of Cu(III) to Cu(II). Is it .783 V?
*November 9, 2014*

**physics**

When the Sun is directly overhead, a hawk dives toward the ground with a constant velocity of 4.80 m/s at 50.5° below the horizontal. Calculate the speed of her shadow on the level ground. What i have done: x= rcos(theta) x=4.80m/s*cos(309.5) x=3.05m y=rsin(theta) y=4.80m/...
*September 11, 2014*

**7th grade math**

I think it should be 10 - (3* 2 2/3), since Carrie wants to cut three pieces of wood. which should give you the answer of 2 ft of wood left. 10- (3* 2 2/3)= 10- (3* 8/3)= 10-8= 2ft
*September 11, 2014*

**algebra**

I'm confused. Can you help? "The community pool charges $8.00 for adults and $5.00 for children. The total revenue for a particular cloudy day is $648.00. Determine the number of adults and the number of children who went to the pool that day if twice as many children...
*March 11, 2014*

**Math**

How do I solve this problem? : Four rectangle strips of wood, each 30 cm long and 3 cm wide, are arranged to form the outer section of a picture frame, as shown. Determine the area in side the wooden frame.
*March 4, 2014*

**Physics**

a 2.5 kg ball moving at 7.50 m/s is caught by a 70.0 kg man while the man is standing on ice. how fast will the man / ball combination be moving after the ball is caught by the man?
*February 20, 2014*

**Science ms sue please help**

So the one with run off is false but then what would it be
*October 24, 2013*

**Science ms sue please help**

True or false during dry weather the water level in a small pond drops because of runoff. I think it's true but I'm not sure And in the water cycle water returns to earth as condensation usually in the form of rain or snow. Is that true? And when water vapor leaves it ...
*October 24, 2013*

**math**

not understanding much, and you give me another example
*October 18, 2013*

**math**

a shopkeeper sold a total of 15 boxes of pencils on monday and tuesday. he sold 3 more boxes on monday than on tuesday. there were 12 pencils in each box. how many pencils did he sell on monday?
*October 18, 2013*

**Math**

44945944
*April 30, 2013*

**Math **

Tenencia is thinking of a number with 8 place values.The digit in The thousand place is 5.The digits in The hundred thousands and hundreds place are both an odd number greater than 7. The digit in each other place value is one less than The digit in The thousands place.What is...
*April 30, 2013*

**Physics**

Please 1 and 2?
*April 30, 2013*

**Math**

14,903,256 Write the digit in the ten millions place.
*April 24, 2013*

**math**

Sean's older brother is 16 years old. He runs between 15 and 25 miles each week. The sum of the digits of the total number of miles that he ran last week is eight less than his age. How many miles did Sean run last week?
*April 22, 2013*

**chemistry**

N2(g)+3H2(g)<=>2NH3(g) +▲H if uou are preparing NH3, hiw does the following increase the yield of NH3? (a) ▲[N2] ▲[H2] (b) ▲T of the chamber storing NH3 (c) ▲P of the system (d) ▲[NH3(g)] * <=> equilibrium * ▲ change
*February 18, 2013*

**chemistry**

N2(g)+3H2(g)<=>2NH3(g) +▲H if uou are preparing NH3, hiw does the following increase the yield of NH3? (a) ▲[N2] ▲[H2] (b) ▲T of the chamber storing NH3 (c) ▲P of the system (d) ▲[NH3(g)] * <=> equilibrium * ▲ change
*February 18, 2013*

**chemistry**

N2(g)+3H2(g)<=>2NH3(g) +▲H if uou are preparing NH3, hiw does the following increase the yield of NH3? (a) ▲[N2] ▲[H2] (b) ▲T of the chamber storing NH3 (c) ▲P of the system (d) ▲[NH3(g)] * <=> equilibrium * ▲ change
*February 18, 2013*

**math 4 th grade**

In which total oes the digit 3 represent 3 tenths? a. 12 quarters, 2 dimes, 3 pennies b. 3 quarters, 5 nickles, 3 pennies c. 2 quarters, 3 dimes, 5 pennies d. 2 quarters, 8 dimes, 5 pennies
*January 30, 2013*

**elementary**

525 mL= LITERS
*January 18, 2013*

**social studies**

please help me ms sue anyone
*January 16, 2013*

**MATH**

SORRY THE SUBJECT IS MATH NOT SOCIAL STUDIES.
*January 16, 2013*

**social studies**

i need help!!!!! one type of lightning bug glows once every 1 1/2 seconds. how many times can it glow in 1 minute? and the other one is : Bea can run 1/6 mile in 2 minutes. how long should it take her to run 2 miles? please help the teacher wont help me and i need these ...
*January 16, 2013*

**Science**

Thanks
*January 10, 2013*

**Science**

Even though it says trasmits
*January 10, 2013*

**Science**

Oh ok then what does transmit mean in the sentence?
*January 10, 2013*

**Science**

What does the word trasmits mean? And no the word is not transmits it says you can think of a pigment as a kind of sponge that absorbs light of all colors except the ones that it trasmits and reflects. WHAT DOES TRASMITS MEAN??????!!!!!
*January 10, 2013*

**math**

I think u r supposed to subtract 7/7 -3/7 for the first question ratio means to add so maybe 7/7+3/7 I think idk.......
*January 10, 2013*

**math**

Ms sue.?
*December 17, 2012*

**math**

Oh ok thank ms sue r u a teacher?
*December 17, 2012*

**math**

so its 272 dollars?
*December 17, 2012*

**math**

i put 68.00 dollars before ooh... i forgot to multiply again thanx!!!!!
*December 17, 2012*

**math**

Robbie needs to buy fencing for his square vegetable garden that measures 16 3/4 feet on a side. One side borders the back of the garage. The fencing costs $4 per feet. Estimate how much the fencing will cost. I NEED HELP!!!!!
*December 17, 2012*

**Social studies**

My friend did and she said like for trade it was good because of the fertile which was good but for the rest I don't get
*November 6, 2012*

**Social studies**

I don't know the question that I put is the same one from the paper. It didn't ask or say anything about the aspects.
*November 6, 2012*

**Social studies**

Compare and contrast how that location of Mesopotamia affected trade and culture.
*November 6, 2012*

**Pre-Calc**

Thank you!
*November 1, 2012*

**Pre-Calc**

cosx/(1+secx) Please help me simplify this expression.
*November 1, 2012*

**Math**

1,100,000 sq. miles
*October 18, 2012*

**Math**

What scale factor was used to enlarge the baby( 7 feet ) to the new height of 50 feet?
*October 18, 2012*

**Math**

What is the scale factor of 30 inches to 7 feet
*October 18, 2012*

**math**

25.2
*October 18, 2012*

**math**

help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
*October 1, 2012*

**math**

never mind and ms sue please help!!!
*October 1, 2012*

**math**

u r not dealing with math
*October 1, 2012*

**math**

what is 750 pounds equal to in tons please show your work because i need help!!!!
*October 1, 2012*

**physics**

a pelican flying a horizontal path drops a fish from a height of 5.0m. the fish travels 8.1m horizontaly before it hits the water below. what was the pelicans initial speed?
*September 26, 2012*

**physics**

a cat chases a mouse across a 1.6m high table. the mouse steps out of the way and the cat slides off the table and strikes the floor 2.0m from the edge of the table. what was the cat's speed when it slid off the table?
*September 26, 2012*

**physics**

a baseball is thrown at an angle of 24 degrees relative to the ground at a speed of 23.4m/s. the ball is caught 41.4798m from the thrower. how long is it in the air?
*September 26, 2012*

**chemistry**

what volume of water should be added to 300ml of HNO3 0.25M to obtain HNO3 0.2M?
*September 7, 2012*

**Pre Calc**

Thank you :)
*September 4, 2012*

**Pre Calc**

How do you find cot(225degrees) using the unit circle?
*September 4, 2012*

**Pre-Calc**

Please help me with this word problem, I can't seem to figure it out. Both Derek and Sam are 5ft 10in tall. Derek looks at a 10ft basketball goal with an angle of elevation of 29 degrees, and Sam looks at the goal with an angle of elevation of 43 degrees. If Sam is ...
*August 16, 2012*

**Chemistry**

Volume of HCl, mL:26.5mL Volume of NaOH,mL:29.1mL Molarity of NaOH, mol/L:0.1m/L balanced equation: NaOh+HCl-->NaCl+H2O Using the above equation calculate the number of moles of acid required to react with 2.91 moles of base. Please help me I have no idea what to do.
*May 28, 2012*

**science**

A spaceship moving with an initial velocity of 58.0 meters/second experiences a uniform acceleration and attains a final velocity of 153 meters/second. What distance has the spaceship covered after 12.0 seconds?
*April 17, 2012*

**Chemistry**

Calculate the volume of ovygen at STP collected at 25.0 L at 775 mm and 296 Kelvins. Yhe mercury level inside the tube is 28.0 mm higher than outside. Please help me solve, I am at a loss :(
*April 9, 2012*

**Algebra II**

Please help me solve this rational function, my teacher did not give us notes and the book is confusing me :/ Thank You! y/5+y/2=7
*March 12, 2012*

**Calculus **

AM having problems understanding what equations to use for this word problem. Please help. A rectangular storage container with an open top is to have a volume of 48ft^3. The length of its base is twice the width. Material for the base costs $8 per square foot and material for...
*March 11, 2012*

**English**

.hkbm
*February 27, 2012*

**chemistry**

24.0 kPa - 1.7 kPa = 22.3 kPa
*February 24, 2012*

**math**

3n+6 If n represents the position of a number in the pattern, which of the following is the pattern of numbers decribed by the expression? f. 1,9,12,15,18 g.6,12,22,36,54 h. 9,12,15,18,21 j. 3,9,12,15,21
*January 30, 2012*

**Physics**

A hockey player makes a slap shot on a 2.0 kg stationary puck, exerting a 30N force for .16 seconds. A What impulse is given to the puck? B. With what velocity does the puck leave the stick?
*January 22, 2012*

**Physics**

A hockey player makes a slap shot on a 2.0 kg stationary puck, exerting a 30N force for .16 seconds. A What impulse is given to the puck? B. With what velocity does the puck leave the stick?
*January 22, 2012*

**alegebra 2**

can you please help me solve this compositions of functions? g(x)=2x; h(x)=x^2+4 (h o g)(1)
*January 12, 2012*

**math**

if the artist used scale pof 1/2 inch to represent 1 foot , what are the dimensions in feet of the mural?
*January 10, 2012*

**geometry**

is my question the same way to solve my problem using sss,asa,sas,aas,and HL?
*January 9, 2012*

**geometry**

what can you tell me about the remaining parts of the triangle?
*January 9, 2012*

**Alegbra II**

Please write y=-x62-2x+3 in vertex form. Help would be appreciated thank you :)
*December 18, 2011*

**Physics**

A quarterback throws a football toward a receiver with an initial speed of 18 m/s, at an angle of 29 degrees above the horizontal. At that instant, the receiver is 19 m from the quarterback. With what constant speed should the receiver run in order to catch the football at the...
*November 7, 2011*

**algebra**

130 = 3x + 10
*November 7, 2011*

**Algebra II**

Thank you!!
*September 16, 2011*

**Algebra II**

y=u+1/u+2 solve for "u". Please help me :)
*September 16, 2011*

**Algebra**

The ratio of the lengths of two pieces of ribbon is 1:3. If 4 ft were cut from each piece, the sum of the new lengths would be 4 ft. How long would each piece be ?
*July 30, 2011*

**chemistry**

A radium-226 sample initially contains 0.112mol. How much radium-226 is left in the sample after 6400 years. The half-life of radium-226 is 1600 years.
*May 31, 2011*

**social studies**

what did the kings did for their peole nd what did they get in return
*January 26, 2011*

**algebra**

You have 24 feet of fence to make a rectangular garden.Each side will measurw a whole number of feet.How many different sized rectangular gardens can you make?
*January 20, 2011*

**math**

estimate to find the product of 332*3
*January 11, 2011*

**5th grade math**

how do you do math
*December 14, 2010*

**sustainability (wes jackson)**

we should recognize it and do what with it? continue to educate ourselves or just stop because its too much for us to know. also, i understood him being very negative towards knowledge in general and it came accross to me as if he's saying we shouldnt have meddled with it ...
*November 29, 2010*

**sustainability (wes jackson)**

I need help understanding this article from wes jackson "toward an ignorance based worldview". I understand he does not speak of knowledge as in getting an education of a university, but i cannot understand his point. could anyone please help me.
*November 29, 2010*

**Chemistry 111**

Whatis the gas produced when you add NaHCO3 to methyl salicylate?
*November 14, 2010*

**modern world studies**

write your memoir of World War II. This should include what you think is the most important information about the war that should be passed on to future generations. Your memoir should be at least one paragraph, but can be longer. Answer: I. Major Events A. War in Europe and ...
*November 3, 2010*

**help quick pleeze**

WITHOUT GRAPHING tell whether each point is on the graph of y=-4x-1. (1/2,-1)
*November 1, 2010*

**MATH .HELP QUICK PLEEZE!**

without graphing tell whether each point is on the graph of y=-4x-1. (1/2,-1)
*November 1, 2010*

**MATH**

instrctions:graph each linear equation .tell whether it represents a function. 1.) x+y=4 HELP QUICK PLEEZE!!!!!!!!!!!!!!!!!!!!!
*November 1, 2010*

**re:social studies**

The Democratic point of view is that the Republicans are the party of "No," and progress will be severely impeded if Republicans gain a majority in Congress. Republicans will extend the tax cuts for everyone, including the rich. why though? The Republican point of ...
*September 19, 2010*

**social studies**

Their house will possibly go from democrate to republican. Will this impede progress or make for more progress in the government? What will influence the tax reform bill? i want both republican and demorcatic view
*September 19, 2010*

**social studies**

There house will possibly go from democrate to republican. Will this impede progress or make for more progress in the government? What will the influence the tax reform bill?
*September 19, 2010*

**social studies**

i do not know .
*September 19, 2010*

**social studies**

There house will possibly go from democrate to republican. Will this impede progress or make for more progress in the government? What will the influence the tax reform bill?
*September 19, 2010*

**7th grade**

You round it to the nearest whole number if your homework page says to round if you have to.If not then leave it as it is.
*September 5, 2010*

**CHEMISTRY> HELP QUICK! pls**

BTW would you mind helping me with my algebra 1 question cuz i really dont get it?!?!?!?!
*September 4, 2010*

**CHEMISTRY> HELP QUICK! pls**

well what do you think youre doing wrong?
*September 4, 2010*

**CHEMISTRY> HELP QUICK! pls**

WELL YOURE WELCOME !!!!!!!!!!!!!!!!GEEZ!
*September 4, 2010*

**CHEMISTRY> HELP QUICK! pls**

B. -630 kJ
*September 4, 2010*

**Algebra 1**

ALRIGHT THANK YOU SOOOOOOOOOOOO MUCH!!!!!!!!!!!!!!!!!!!!!!!!!!
*September 4, 2010*

**Algebra 1**

The cube root of the volume of a cube gives the length of one side of the cube . Volume:343 cm^3. A:Find the side length of the cube shown . B:Find the area of each face of the cube.
*September 4, 2010*

**Geography**

Nope sorry its the mediterranean =)
*September 4, 2010*