Friday

April 18, 2014

April 18, 2014

Total # Posts: 233

**Math**

The exchange rate for the Australian dollar in January 2000 was AU$100 = S$x. In June 2000, the exchange rate had become AU$100 = S$(x-5). Karen found out that she could get an extra AU$32 for every S$672 that she exchanged in June compares to January. Form an equation in x an...

**math**

what is the answer to What Do You Get if a Bunch of Bad Guys Fall in the Ocean?

**Physics**

A ray of light hits a side of Lucite ( n = 1.5) prism at 50 degree. Assuming that the nearest vertex has an angle of 70 degrees, what is the angle of light that leaves the prism.

**world history**

what combination of food did the polyneatians introduce to the island that they colonized

**Physics**

A 975 N object is pulled at a constant velocity up an incline with a force of 327 N parallel to the incline as shown in the diagram. Assume that the difference between the work output and the work input is the work required to overcome friction. a) what is the force of frictio...

**physics**

p = w/t<br> 105 = w/3.2 <br> Solve for w is your answer!

**physics**

A 975 N object is pulled at a constant velocity up an incline with a force of 327 n parallel to the incline as shown in the diagram. Assume that the difference between the work output and the work input is the work required to overcome friction. a) what is the force of frictio...

**Physics**

a 975 N object is pulled at a constant velocity up an incline with a force of 327 n parallel to the incline as shown in the diagram. Assume that the difference between the work output and the work input is the work required to overcome friction. a) what is the force of frictio...

**Chemistry**

20cal/degrees C

**math**

(2x+3)/(3x-6) = (5x+3)/(5x - 9)

**math**

|\ | \ 5 |-x-\ | \ | -y- \ 5 | \ | \ 8 |-------10---\

**Math**

A picture measures 20 cm x 25 cm. The width of the matting and frame at the top and bottom is 5cm. What should be the dimensions of the frame so that the framed picture is similar to the picture alone

**Math**

They mean absolute value. It means that anything in between them is positive. so -60 would turn to 60.

**geometry**

Wouldnt it just be 300 m? They tell you in the problem that df equals 300 m.

**ap chem**

No, the pH needs to be converted to H^+ using the inverse log Example: ph = -log[H^+] = 3.0 log [H^+] = -3.0 [H^+] = inv log (3.0) 10^(-3.0)

**Spanish**

Thank you

**Spanish**

What is this asking? ¿Cómo eres? choices would be: This question asks about about a person's health about what a person is like how a person is feeling today what a person is wearing I think it is about a person's health or how a person is feeling today? ...

**10th grade**

How many grams of water vapor (H2O) are in a 10.2 liter sample at 0.98 atmospheres and 26°C?

**physics**

do you have an answer though? I'd really appreciate it.

**physics**

Calculate the period of a ball tied to a string of length 0.3 m making 1.9 revolutions every second.

**math**

All you can do is rearrange it

**Chemistry**

What is the maximum [Ba^2+] that can be maintained in 1.100 L of a 030 M solution of Na2SO4?

**geometry**

Emma has 26 feet of fence. She wants to make the largest rectangular area possible for her rabbits to play in. What length should she make each side of the rabbit pen?

**AP Chem**

2 H2O(g) -> 2 H2(g) + O2(g) H2O(g) -> H2(g) + 1/2 O2(g) 1mol 1 mol 1/2 mole each mole H2O has 2 moles of O-H bonds to break (energy requiring) = 2 x 467 = 934 kJ Each mole H2 has 1 mole H-H bonds to make (energy releasing) = 436 kJ Each mole O2 has 1 mole O=O bonds to ma...

**physics**

A 20 kg mass freely falls a distance of 6m near the Earth’s surface. The total kinetic energy gained by the mass as it falls is approximately A. 120 J B. 1180 J C. 1440 J D. 2400 J

**Chemistry**

This is the first time I've submitted a question and I just need some help with this one.

**Chemistry**

Balance the net ionic equation I− + NO− 2 ! NO + I2 (in acidic solution). What is the sum of the coefficients? Use H+ rather than H3O+ where appropriate. 1. 13 2. 15 3. 17 4. 11 5. 19

**physics**

A toy sled with a mass of 1.0 kg is sliding down a ramp that makes an angle of 25° with the ground. The coefficient of kinetic friction between the toy sled and the ramp is 0.25. 4. In a coordinate system where the x-axis is parallel to the ramp and the y-axis is perpendic...

**Chemistry**

Hi, I posted my question earlier but I was having some difficulty with it. 2Al+ 3Cl2-->2AlCl3 You are given 31.0g of aluminum and 36.0g of chlorine gas. 1.If you had excess chlorine, how many moles of aluminum chloride could be produced from 31.0g of aluminum? _____________...

**Chemistry**

Please help solve; 2Al +3Cl2 --> 2AlCl3 You are give 31.0g Al and 36.0g of Cl2. If you had excess chlorine, how many moles of of aluminum chloride could be produced from 31.0 g of aluminum?

**Math**

: Jim Kim Mim and Tim all went fishing. They each caught one fish. They measured each fish to the nearest inch and weighed them to the nearest pound. When they lined the fish up end to end they stretched from one edge of the 6-foot-long table to the other. The four fish weighe...

**COM/155 English**

Describe your experience with credit and credit cards in a brief paragraph using at least five adverbs and five adjectives in your description. Bold the adverbs and underline the adjectives. What is the most effective way to determine whether a word is an adjective or an adverb?

**axia college**

Describe your experience with credit and credit cards in a brief paragraph using at least five adverbs and five adjectives in your description. Bold the adverbs and underline the adjectives. What is the most effective way to determine whether a word is an adjective or an adverb?

**english**

what are some examples of exposition in The Miracle Worker

**math**

thanks!

**math**

y^2-3y=54 what is y?

**math**

How do you make a w made of 4 pens into a perfect square by only moving one pen

**riddle**

How do you make a w made out of pens into a square by moving only 1 pen

**Penn Foster Writing Assignment Writing Skills**

this is so dumb they keep sendin mine back after yhe instructer told me it was fine

**Penn Foster Writing Assignment Writing Skills**

this is so dumb they keep sendin mine back after yhe instructer told me it was fine

**physics**

An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 5400V . It then passes between two horizontal plates 6.1cm long and 1.2cm apart that have a potential difference of 250V At what angle will the electron be traveling aft...

**English**

Whats Wrong with my thesis on Great migration? The Great migration was the movement of African Americans traveling from the South to the north in search for jobs.

**Science**

What is Analysis?

**Physics **

A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward?

**Physics **

A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward?

**Physics **

This is a pretty simple physics problem, but I do not know how to go about it. How do I: Show that the time required for a projectile to reach its highest point is equal to the time for it to return to its original height?

**chemistry**

what is the difference between electron affinity and ionization energy?

**chemistry**

how does the length of time relate to the amount of heat absorbed?

**algebra II**

4 to the fifth power times 4 to the third power divided by 4 to the sixth power

**algebra II**

5 3 4 . 4 _______ 6 4 I really need help with this math..I don't understand it and all I have is a worksheet with no examples...I am a 10th grader...any help would be appreciated. Jeremy

**4th grade math**

the answer is 9

**math**

how many yards in 48 in. in decimal form rounding to the nearest hundreth

**literary**

Choose 3 selections from literature that are united into one topic or theme. Your topic can be united by subject, author, genre, style, etc. (requirement) Good speeches will have one clear main topic throughout. My topic is (Remembrance) Thanks for any help.

**chemistry**

I'm looking for the Lewis structure but not PbCl2. I need the Lezis Structure of PbCl3.

**chemistry**

What is the Leis Structure for PbCl3?

**computor programming**

is the design phase of a give project only as good as the analysis of the previous phase

**history**

How might have the maps indication of where Native Americans lived strengthened European claims of sovereignty?

**algebra**

14+x2 simplify

**Math**

Find the quotient 3(cos (5pi/12) + i sin (5pi/12) / 6(cos (pi/12) i sin (pi/12)). Express the quotient in rectangular form. I have no idea what I did but I got (1/4) - 433i/1000.

**Pre Cal.**

1. Identify the conic section represented by: 9y^2+4x^2 - 108y+24x= -144? Is it ellipse. 2. Find the coordinates of the vertex and the equation of the axis of symmetry for the parabola represented by: x^2 + 4x - 6y + 10 = 0. vertex: (-2 , 1) axis of symmetry: x = -2

**Pre Cal.**

Express 5sqrt(3) - 5i in polar form. A: 10(cos(11pi/6) + i sin(11pi/6)) Express 4(cos(3pi/4) + i sin(3pi/4)) in rectangular form. A: -2sqrt(2) + 2sqrt(2i Write 2x+y=5 in polar form. A: sqrt(5)= r cos (theta-27degrees) Are these correct?

**Pre Cal.**

The expression 81p^4 + 108 p^3 r^3 + 54p^2 r^6 + 12 pr^9 + r^12 is the expansion of which binomial? A: (3p+r^3)^4 The fifth term in the expansion of (3x^2-sqrt(y))^6 is _______. A: 135x^4y^2

**Pre Cal.**

Find three geometric means betwee -sqrt(2) and -4sqrt(2). A: 2, -2sqrt(2), 4 Is 6 sqrt(2)+ 6 + 3sqrt(2)+... a convergent series? A: Yes. Is 1 + 3(1/2) + 9(1/2)^2 + 27(1/2)^3 +... a divergent series? A: Yes. Are these right?

**algebra 2**

how do i find the radical notation of 25 -1/2?

**Latin**

In what instances do you use the nominative for the word preceding "of the," in oppose to the genitive. For example, in some of my sentences, I have the nominative, like "Forma terrae in Sicilia plana non est." But other times, it is genitive "Curae pu...

**Latin**

Multi Romani copiam aquae in carris spectant. Would this translate to "Many Romans see the suply of water in the carriages?" Thanks, hopefully this will be the last question.

**Latin**

The sentence is: Agricolae equi in reginae terra (with a macron) sunt. The answer is "the farmer's horses are on the queen's land." What ending are you supposed to use for something following an 's or s'? Doesn't this sentence use two different en...

**Latin**

Oh whoops I forgot the translation for 2. I said "Many servants on the island are big."

**Latin**

Would you mind checking my translations of these? 1. Silvas claras insulae magnae spectatis. You (plural) see the clear forest of the large island. I wasn't sure if I properly did the "of" part. 2. Numerus servorum in insula erat magnus. I said this meant Numerus...

**CALCULUS**

Use the Midpoint Rule to approximate the integral: (10x-3x^2)dx from -1 to 5 with n=3

**math 115 9.4 #80**

(-3)^3-(-8)(-2) = (-27)-(+16) = -11

**The court system**

I think that what it is telling you to do is to write 1400 words about how some poeple think that the court systen can be funny, like in a television show, compared to how serious it is in real life.

**Business Math**

with limited information I can only tell you that to find the end of day balance you have to add up your accounts recieved and accounts payable, your sum of items taken in....subtract any money that was given out (accounts payable) from the sum of money recieved.....if you gav...

**English- vocab**

I think you were right. It could be mystery. It could also be phenomenom.

**chem**

[Xe] 4f14 5d10 Always follow this pattern: 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s...

**Chem**

No problem!

**Chem**

Use a bomb calorimeter... or some kind of calorimeter... I'm just guessing; hopefully the calorimeter idea isn't stupid! Good luck.

**chemistry**

The double-slit experiment shows that it acts as both a wave and a particle. Look that up on google or something for more information.

**Algabra**

5/a=?/a^2 5a^2=a? 5=(a?)/a^2 5=?/a or 5a=? or a=?/5 If that's what your question is asking for, I hope that helps.

**physics**

The bowling ball and the volleyball will have the same acceleration. I'm not exactly sure about the car thing, but it's probably because the front meets the most air resistance, pushing it down while accelerating, and when it brakes, the air resistance in the front is ...

**physics**

If I'm not mistaken, it's 9.097155832 grams, which you can round as you see fit. 913.5 J = m x specific heat water x 24 degrees Celcius. Specific heat of water is 4.184 J/(gC). Solve for m.

**Math**

Use the formula x = negative b, plus or minus the square root of b squared minus four ac, all of which is divided by 2a. Formula: [-b+/-sqrt(b^2-4ac)] / 2a

**2nd grade**

Time machine.

**physics**

heat = mCpTsub(f-i) 609 J = (1.2kg)(4184 J/kgC)(Tf - Ti) [609 J/ [(1.2kg)(4184 J/kgC)]] -5C = Tf Tf = -4.87... degrees C. for part A For Part B: Use the same equation, except multiply heat by 3. Solve for the new mass, then divide that mass by the old mass (1.2kg) to get the f...

**chemistry**

I disagree with Dr. Russ's method. Use PV=nRT, where P=2.3atm, V=120L, n= unknown moles, R= .08205, T=340K. Solve for n to get 9.9 mol gas. Without significant figures, n=9.893536939.

**phisical science**

what are the general properties of an acid an a base

**science**

a protist kingdom are animals which have mostly one cell, microorganisms and reproduce by splitting in two. Animal kingdom are animals which have many cells and reproduce with eggs thay either grow inside the body or outsidethe body

**algebra**

The number of students attending the fall play was 150 more than the number of adults attending. Students tickets cost $3, and adult tickets cost 45 . A total of $4730 was collected. How many students attended the play? this is what i have, but i need help on the equation. let...

**7th grade pre algebra**

What is the difference between bar graphs and histograms.

**science**

I am trying to find out about the internal organs of the mealy bug and a drawing of a male and a female

**Math**

What is the length of the longest rod that can be placed in a hollow cube of side 10 feet? in this problem we are supposed to use Pathagorem Theorm.

**Algebra II**

1. -7

**Math**

How do you a equation like: 4x + X +2(42-6)-23 + 5x =81 _ 2

**science**

GCU

**math**

An isosceles triangle automatically has 2 equa; sides. So if you can fin the length of the sides then that will prove that they are equal.

**geometry**

1. Find the area of the square. 2. Find the area of the circle. 3. Subtract the area of the square-area of the circle.

**English grammar**

I think the first and third one are correct.

**math**

I think, but i'm not sure that it is 700,000

**algebra**

You plug in one value as 'x' to find 'y'. or vice versa. ex. y=2x I will use 1 for x 2*1=2 so, y=2 WHen you plot this on a graph you plot it as (1,2). 1 being on the x-axis, and 2 on the y-axis.

**Biology**

Kingdom

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