Thursday

July 31, 2014

July 31, 2014

Total # Posts: 362

**Physics**

(a ball is thrown straight upward with some unknow velocity. The ball reaches a maximum height above the launch point of 32m. how fast is the ball movin when it is 8 m above the launch point )

**NU**

a ball is thrown straight upward with some unknow velocity. The ball reaches a maximum height above the launch point of 32m. how fast is the ball movin when it is 8 m above the launch point

**Math **

If theres a golden rectangle, with one dimension shown as being 100, then what is the length of the unknown side? How do you do this please?

**geometry **

find the volume of a shape whose surface ares is 144 pi square inches

**Math**

Oh i did 1 times 2 times 3 times 4=24, then times the 1000 which is equal to 24000, then on the outside of thefraction it says add 1 so thats how i got 24,001. I dont know what the ...means thats how the problem was written. How does that make it prime though if you don't ...

**busieness **

questions 2) List the facts that have the most bearing on the decision. 4)Explain what each affected person would want you to do about the issue. 5)List three alternative actions and identify the best and worst case scenario for each alternative, anyone who would be harmed by ...

**gen/105**

what website can i use to find this?

**gen/105**

• Conduct online research regarding the strongest of your multiple intelligences. Find three Web sites that accurately describe that intelligence. If you identified more than one intelligence, choose one. • Compile the following information: o Links to the three Web ...

**physics**

a mass of density bottle is 20g,when empty,70g when full of water and 55g when full of a second liquid.calculate the density of the liquid

**Math**

sarah and isabel each has an equal amount of money. After sarah spent 18 and isabel spent 25, Sarah had twice as much as Isabel. How much did each of them have first.

**com 170**

I believe this paragraph below is a Analysis I have to pick between summary,analysis, synthesis, and evaluation can you tell me if i am right and if not which one and why? 1. Alice Doe’s article discussed overlooked tax deductions. It talked about some of the most commonl...

**calculus**

Please help with this. I submitted it below and was asked to clarify by Henry (hope this is clearer and thank you). I need the first derivative of f(x)=4(x+ sqrt (x(8-x)).And then the second derivative of this to show by the second derivative test that it is a local maximum. T...

**reading**

what are some examples of everyday kid ritual?

**Math**

i think its 10/7

**calculus**

Please help with this. I submitted it below but no one responded. I need the first derivative of f(x)=4(x+ then the square root to include (x(8-x)), then close bracket.And then the second derivative of this to show by the second derivative test that it is a local maximum. This...

**calculus**

Please help with this. I need the first derivative of f(x)=4(x+squareroot (x(8-x)) and then the second derivative of this to show by the second derivative test that it is a local maximum. This is difficult to put into form here and I hope I have got it right. Many thanks.

**algebra**

Find value of x: x(x+2)=7

**Chemistry**

Enough SO3 is added to an evacuated container so its initial pressure is 4.00 atm. Calculate the mole fraction of O2 in the equilibrium mixture if the total pressure at equilibrium is 5.00 atm.

**Chemistry**

Enough SO3 is added to an evacuated container so its initial pressure is 4.00 atm. Calculate the mole fraction of O2 in the equilibrium mixture if the total pressure at equilibrium is 5.00 atm.

**Chem**

Enough SO3 is added to an evacuated container so its initial pressure is 4.00 atm. Calculate the mole fraction of O2 in the equilibrium mixture if the total pressure at equilibrium is 5.00 atm.

**Math 1 9th grade**

how do you find the characteristics of a graph

**biology**

rana pipiens, a species of frog, has a diploid chromosome number of 26. a. how many chromosomes are present during metaphase i? per cell? b. how many chromatids are present during anaphase i ? per cell? c. how many centromeres are present during telophase I? per cell? d. how m...

**Calculus**

if u and v are differentiable functions, then does d(uv) = dudv

**MATH HELP NEEDED**

combine 2nd and third

**MATH HELP NEEDED**

yfrog./ 9escreenshot25ucj img338.imageshack.us /img338/7823/screenshot25uc.jpg

**Algebra**

when i combine the like terms i dont know what the next step is

**Algebra**

At what two points do the graphs of y=2x^2-5x-12 and y=1/2x^2-3x+4 intersect? explain your reasoning.

**Math**

b) temperature of the surrounding environment

**Math**

Using Netwon Law of Cool, the graph of T(t)=S+(T subscript --S)e^kt approaches a horizontal asymptote.What does the asymtote describe? a) intial temperature of the heated object b) temperature of the surrounding environment c) the difference in the temparture of the heated ob...

**Pharmacy Tech**

An IV infusion order is written for 0.3 L of D5W/0.45% NS to run over 12 hours. The drp factor on th IV is set to 12 gtt/mL. What is the flow rate in drops per minute? Hint make sure your equation includes conversion factors for volume and timeso that the answer is in gtt/min....

**english**

aesthetics?

**english**

This teen romance doesn't have a single authentic moment, from its canned tragedy setup . . . to its power-ballad finale . . ." wich one would it be? authenticity? universality? aesthetics?

**math**

find all real zeros and their multiplicity of the polynomial function f(x)=5(x-4)squared(x+2)

**math**

sketch the graph of quadratic function. identify vertex and x-intercepts f(x)=(x-3)squared-1

**algebra**

sketch the graph of quadratic function. identify vertex and x intercepts f(x)(x-3)squared-1

**algebra**

solve the system of equations x+y=1 x-y=5

**algebra**

find all real zeros and their multiplicity of the polynomial function f(x)=5(X-4)squared(x+2)

**algebra**

state the domain of the function. identify all intercepts and find vertical and horizontal asymtodes. f(x)=x-2 over x+1 or x-2 f(x)= ___ x+1

**algebra**

find all real zeros and their multiplicity of the polynomial function f(x)=5(x-4)squared(x+2

**algebra**

write the partial fraction decomposition of the rational expression ax over x squared -x-2 or ax ____________ xsquared-x-2

**algebra**

you deposit 8500 dollars in an account that pays you 3.5 % interest compounded continuously. How long will it take for the money to triple?

**small business management**

what's the best way to find out if a particular business is a good fit for you

**calculus**

Integrate x^2+5x+1dx/(2x^3+15x^2+6x+23)^1/2

**AP Physics**

A 2.8 kg mass hangs at one end of a rope that is attached to a support on a railroad car. When the car accelerates to the right, the rope makes an angle of 9.0° with the vertical, as shown in Figure P4.68. Find the acceleration of the car.

**AP Physics**

A woman at an airport is towing her 17.0 kg suitcase at constant speed by pulling on the strap at an angle of θ above the horizontal (Fig. P4.40). She pulls on the strap with a 26.0 N force, and the friction force on the suitcase is 10.0 N. What angle does the strap make ...

**12th grade Math - word problems**

84.33

**Chemistry **

Calcium chloride has been used to melt ice from roadways. Given that the saturated solution is 32% calcium chloride by mass, estimate the freezing point. Express your answer in degrees Celsius. Assume that calcium chloride behaves ideally in solution.

**physics**

To measure the height of a tree, you throw a rock directly upward, with a speed just fast enough that the rock brushes against the uppermost leaves and then falls back to the ground. If the rock is in the air for 2.1 s, how tall is the tree?

**physics**

To measure the height of a tree, you throw a rock directly upward, with a speed just fast enough that the rock brushes against the uppermost leaves and then falls back to the ground. If the rock is in the air for 2.1 s, how tall is the tree?

**physics**

Consider a rock that is thrown off a bridge of height 27 m at an angle θ = 24° with respect to the horizontal as shown in the figure above. If the initial speed the rock is thrown is 12 m/s, find the following quantities: (a) The time it takes the rock to reach its ma...

**physics**

I solved for h and got 210.2. What am I doing wrong?

**physics**

could you possibly explain A. im still not understanding it.

**physics**

A model rocket is launched straight upward with an initial speed of 60.0 m/s. It accelerates with a constant upward acceleration of 2.00 m/s2 until its engines stop at an altitude of 130 m. (a) What is the maximum height reached by the rocket? m (b) How long after lift-off doe...

**chemistry**

-10KJ

**chemistry**

-10KJ

**College Physics**

thank you

**College Physics**

2 questions: a)Assuming that water has a density of exactly 1 g/cm3 (cubed), find the mass of one cubic meter of water in kilograms. b)Suppose that it takes 10 hours to drain a container of 5700m3 (cubed) of water. What is the "mass flow rate," in kilograms per secon...

**math**

yes you suppose to multiply the squared polynomial...but i was not to sure. Here is what I have for an answer... x^4-8x^3+28x^2-48x+36

**science**

the atomic mass of N is 14 u and that of Ca is 40 u. the proportion of n by mass in the compound Ca3N2 is what?

**physics**

x-rays produced in an x ray machine can have a frequency of 1.4*10^14 what is the wave length of these electromagnetic waves in nm?

**Algebra**

more than $7000 to reach her goal.

**algebra**

Yes. Answer choice A is correct. If you simply take the one factor they gave you, which is 2x+y, and multiply by answer A, which a-b, you get 2ax-2bx+ay-by

**ethics**

explain the ethics of public service. why must all criminal justice professionals adhere to such a set of ethics.

**ethics**

given the fact that there is no national religion in the US, what application do the ethics of religious testaments have on the average American criminal justice practitioner?

**ethics**

Explain the hierarchical rule of identities. How could such a hierarchy influence the decisions of a cia agent stationed in a foreign country?

**ethics**

Explain the Edwin Meese synddrome, giving examples from the fields of probation and parole

**Math SAT Sheet **

1.) Find the domain and range for: f(x)= 4x-20/ the square root of 36-x^2 2.) Solve the equation: log6 (x-11) + log6 (x-6) = 2 3.) Solve the inequality: x^2 - 2x - 3 is greater than 0

**math**

100

**AP Chemistry**

Given: N2O4 (g) « 2NO2 (g) @ 25 degrees celcius, Kc is 5.84 x 10^-3. (A) Calculate the equilibrium concentrations of both gases when 4.00 grams of N2O4 is placed in a 2.00 L flask at 25 degrees celcius. (B) What will be the new equilibrium concentrations if the volume of...

**AP Chemistry**

Given: N2O4 (g) « 2NO2 (g) @ 25 degrees celcius, Kc is 5.84 x 10^-3. (A) Calculate the equilibrium concentrations of both gases when 4.00 grams of N2O4 is placed in a 2.00 L flask at 25 degrees celcius. (B) What will be the new equilibrium concentrations if the volume of...

**AP Chemistry**

Thank you! For part B I did the same thing only this time I used 3.00 L. However I can't seem to find the value of x... I am coming up with 0.0191, but when I substitue that in I do not come up with 5.84 x 10^ -3

**AP Chemistry**

It is N2O4 ==> 2NO2 with Kc= 5.83 x 10^-3 (the arrow is actually a double headed arrow to symbolize equilibrium) Sorry for the misunderstanding! I didn't realize the arrows were like that

**AP Chemistry**

Given: N2O4 (g) « 2NO2 (g) @ 25 degrees celcius, Kc is 5.84 x 10^-3. (A) Calculate the equilibrium concentrations of both gases when 4.00 grams of N2O4 is placed in a 2.00 L flask at 25 degrees celcius. (B) What will be the new equilibrium concentrations if the volume of...

**CHEMISTRY HELP NEEDED A.S.A.P**

Given: N2O4 (g) « 2NO2 (g) @ 25 degrees celcius, Kc is 5.84 x 10^-3. (A) Calculate the equilibrium concentrations of both gases when 4.00 grams of N2O4 is placed in a 2.00 L flask at 25 degrees celcius. (B) What will be the new equilibrium concentrations if the volume of...

**CHEMISTRY HELP STILL NEEDED PLEASE!!!**

Given: N2O4 (g) « 2NO2 (g) @ 25 degrees celcius, Kc is 5.84 x 10^-3. (A) Calculate the equilibrium concentrations of both gases when 4.00 grams of N2O4 is placed in a 2.00 L flask at 25 degrees celcius. (B) What will be the new equilibrium concentrations if the volume of...

**CHEMISTRY HELP DESPERATELY NEEDDED!!!**

Given: N2O4 (g) « 2NO2 (g) @ 25 degrees celcius, Kc is 5.84 x 10^-3. (A) Calculate the equilibrium concentrations of both gases when 4.00 grams of N2O4 is placed in a 2.00 L flask at 25 degrees celcius. (B) What will be the new equilibrium concentrations if the volume of...

**IT**

If I have a steel cable pulling 5 degrees from straight down by 1500lbs. This cable goes up to the top of a 10 foot pole and is attached. Then I have a cable going out 20 feet in the opposite direction back to the ground. How many lbs. of force will be pulling at the end by th...

**physics**

A 5.0 kg book is sitting on a table. Which describes the force acting on the book a. there are no forces acting on the book b. the force of the table upward is greater than the force of gravity downward c. the net force on the book is zero d. kinetic energy counteracts the for...

**algebra**

So is the line between the -3 and 2 like a divison sign?

**algebra**

Evaluate and tabulate the values of y for the value(s) given. y = 2x3, for x = -3, 0, 1, 4 Can someone explain how to set this up? I do not know what the question is wanting me to do.

**college english**

I need to know if there are any grammatical errors in the following rewritten paragraph. Thank you. However, dictionaries are often wrong about this; in fact, by putting one word first, they are supporting a self-fulfilling prophecy. Consider the entry “ax or axe”, w...

**Health Administration**

Bayside insurance offers two health plans. Under plan A, Giselle would have to pay the first $60 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first $250, but only 20% of the rest. For what amount of mediacl bills will plan B save Giselle mone...

**physics**

does anyone know who conducted the experiment or a credible description of the experiment that helped prove Einstein's thought experiment: the twin paradox? as in the experiment in which one cesium-beam atomic clock stays on Earth, while another one takes flight and the ti...

**physics **

thankyou! i just need one more now and am having a hard time..

**physics **

thankyou! i just need one more now and am having a hard time..

**physics **

is anyone aware of evidence (preferably experimental evidence) in support of time dilation. in other words proof that it actually occurs. that is, experiments other than the one of Hafele and Keating. i just need a starting point for some research.. just a name or the title of...

**Impossible chemistry problem**

Kinetics Challenge Problem Consider the following reaction: CH3X + Y → CH3Y + X At 25oC, the following two experiments were run, yielding the following data: Experiment 1 : [Y]0 = 3.0 M [CH3X] Time(hr) 7.08 x 10-3M 1.0 4.52 x 10-3M 1.5 2.23 x 10-3M 2.3 4.76 x 10-4M 4.0 8...

**Science Projet**

johnson's

**physics**

Would you see the same thin film interference pattern in a film of soap surrounded by air and a film of soap on glass? Why or why not?

**physics**

Would you see the same thin film interference pattern in a film of soap surrounded by air and a film of soap on glass? Why or why not?

**physics**

What up what up what up

**math**

how to write two differnt word phrases for the expression t 30

**Math**

Thank you very much. I wrote my question incorrectly. It should be the cost of renting buses (plural). Would that be something like 350 times n/60?

**Math**

the total cost for a school bus rental is 350$/day. Each bus holds 60 students. Find the cost (c) of renting the school bus as a function of the number of students going on a trip (n). My answer: I have come up with relating the 350$ to n/60 but i am stuck on where to go from ...

**Physics**

Please someone help me I'm desperate!!!! Two steel guitar strings have the same length. String A has a diameter of 0.59 mm and is under 420.0 N of tension. String B has a diameter of 1.3 mm and is under a tension of 840.0N . Find the ratio of the wave speeds,VA/VB , in the...

**physics**

A spring has k = 88 N/m. Use a graph to determine the work needed to stretch it from x = 3.6 cm to x = 5.6 cm, where x is the displacement from its unstretched length.

**Physics**

Hi I'm kinda new here, and hope someone can please help me out. A person exerts a tangential force of 38.1 N on the rim of a disk-shaped merry-go-round of radius 2.74 m and mass 207 kg. If the merry-go-round starts at rest, what is its angular speed after the person has ro...

**physics**

your wrong

**math**

Pi

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