Saturday
July 26, 2014

Posts by John


Total # Posts: 6,193

math
9000

chemistry
How many grams of 5.400 wt% aqueous HF are required to provide a 50% excess to react with 14.0 mL of 0.0236 M Th4+ by the following reaction? Th4+ + 4F - → ThF4 (s)

math
Brie's cabinet has 6 cans of vegetable soup,4 cans of chicken soup, and 8 cans of beef barley soup. She will pick a can of soup from the cabinet at random. 1. What is the probability brie will pick a can of vegetable soup? Write your answer in ratio from. 2. What is the pr...

math
The barkleys have a set of plastic picnic cups and dishes that come in 6 different colors. Blue, Red, Green, Yellow , Orange, and Purple. 1. How many possible cup-and-dish combinations can they make with such a set? 2. peter will pick a dish and a cup without looking.What is t...

5 th grade algebra
that's 36.375

Science
How does water's oxygen content affect freezing point?

scientist
Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard learning session in run...

Economics
There are two groups of individuals of equal size, each with a utility function given by U(M) = sq. root(M), where M = 100 is the initial wealth level for every individual. Each member of group 1 faces a loss of 36 with probability 0.5. Each member of group 2 faces the same lo...

math
An adult has 206 bones of those 2.9% are found in the inner ear. How many bones in the human body are found in the inner ear?

law and ethics -nursing
What ethical dilema could a wife with cancer possibly face? What ethical dilema could her husband possibly face when he has depression that he doesnt treat? There son is a 24 year old whom has down syndrom and needs his parents for care.

nursing
Two ethical dilemmas potentially faced by a family whom the wife has colon cancer and the son is a 24 year downs. The wife mainly cared for him and the husband is lost and depression and has been drinking

nursing ethics and law
List two ethical dilemmas potentially faced by the Allen family in this simulation

physic
an ideal fluid flows through a pipe hat runs up an incline and gradually rises to a height H. The cross sectional area of the pipe is uniform. compared with the flow at the bottom of the incline, the flow at the top is a) moving slower at lower pressure b) moving slower at hi...

math
Pizzaz pg.103 Did you hear about...

business
You have recently learned that the company where you work is being sold for $275,000. The company’s income statement indicates current profits of $10,000 which have yet to be paid out as dividends. Assuming the company will remain a “growing concern” into the in...

Calculus
Find the particular solution that satisfies the intial condition: xdy - (2xe^(-y/x)+y)dx = 0

chemistry
I am a freshman in college, and am taking a placement test soon, but haven't seen chemistry since 10th grade. I'd appreciate any help I can get from anyone here to help me solve this problem: Hydrogen and sulfur chemically combine to form the gas hydrogen sulfide, acco...

Pre Calc
evaluate the trigonometric function of the given quadrantal angle. tan 1400° cos 9π cos 13π/2 sin (-17π)

nursinmg ethics and law
Identify and explain nursing management decisions relating to standards of practice that pose legal implications.

physics
A small component of 1cm x 1 cm x 1 cm is subject to external forces coming from all directions. Design a holder for the component capable of measuring those forces through sensors that are embedded in the holder and capable of measuring forces in x, y, and z. Without loose mo...

physics
A small component of 1cm x 1 cm x 1 cm is subject to external forces coming from all directions. Design a holder for the component capable of measuring those forces through sensors that are embedded in the holder and capable of measuring forces in x, y, and z. Without loose mo...

English
What is the meaning of "When once you have tasted flight, you will forever walk the Earth with your eyes turned skyward, for there you have been, and there you will always long to return"?

physics
A stone is projected upward at an angle of 60degree to the horizontal from the top of a tower of height 100meter and it hits the ground at a point. If the initial velocity of projection is 100meter. Calculate the maximum height of the stone above the ground. Calculate the time...

physics
A stone is projected upward at an angle of 60degree to the horizontal from the top of a tower of height 100meter and it hits the ground at a point. If the initial velocity of projection is 100meter. Calculate the maximum height of the stone above the ground. Calculate the time...

mathhh
So its A?

mathhh
Which property is illustrated by the equation (rs)t=r(st)? A) associative B)Communtative C)Distributive D)Identity Help me please

Physics
A 60 kg ice skater holds up a large sheet of cardboard that can catch the wind and drive her (frictionlessly) across the ice. While she's moving at 0.5 m/s, a wind that is constant and horizontal for 5.0 s exerts a force on the cardboard of 1.7 N. What is the skater's ...

Physics
A 60 kg ice skater holds up a large sheet of cardboard that can catch the wind and drive her (frictionlessly) across the ice. While she's moving at 0.5 m/s, a wind that is constant and horizontal for 5.0 s exerts a force on the cardboard of 1.7 N. What is the skater's ...

Physics
A 60 kg ice skater holds up a large sheet of cardboard that can catch the wind and drive her (frictionlessly) across the ice. While she's moving at 0.5 m/s, a wind that is constant and horizontal for 5.0 s exerts a force on the cardboard of 1.7 N. What is the skater's ...

grammar
All I got were a doll, a hat, and a bat. subject-verb agreement

math
Let f(x)= 4 and g(x)= ãx-2 : X2 - 4 f o g(11)=ANSWER: Square root X-2/ 11-2 =ã9=3 4/32 -4 = 4/5 f o f(0)=ANSWER Determine the Domain of f o g=ANSWER:

calc
Let f(x)= 4 and g(x)= ãx-2 : X2 - 4 f o g(11)=ANSWER: ãX-2/ 11-2 =ã9=3 4/32 -4 = 4/5 f o f(0)=ANSWER Determine the Domain of f o g=ANSWER:

cal
1. Given the function f(x) and g(x) below determine the following: A) f o g(3) ANSWER: B) f o g(-4) ANSWER: C) g o f(0) ANSWER: D) f o f(1) ANSWER: E) g o g(-2) ANSWER:

math
Suppose that you are a CSI and you are called to a crime scene at 12:00 noon and find a dead body in a walk-in that is a constant 40¨H. The initial temperature is 85¡ã and after 20 minutes. The body¡¯s temperature is 84¡ã. Using Newton&...

CHEMISTRY
546.0 J

Math (URGENT)
solve for x, 0 ¡Ü x < 360 tan2x+1=0 My answers: 22.5, 157.5, 202.5, 337.5 Textbook: 67.5, 157.5, 247.5, 337.5 I don't understand. Am I wrong? Thanks for your help.

trig
How do you find 2.8 revolutions per second in radians? I understand that two revolutions would be equal to 4pie but how do you find the 0.8?

trig
A bolt secured to a bridge is being acted upon by forces being exerted by two cables attached to the bolt. The force vector for one of the cables is represented by F1 = <1.7,9.8>. The other force vector, F2, is known to have a magnitude 5 and a direction angle of 10 degr...

math
how did you get the denominators to be the same?

trig
Find ALL solutions to the equation on the interval [0, 2pie]: 2sin(1/2X) = 1

Anthro
none of the 188,000 results are good fr information

Anthro
“How do images challenge our assumptions and understanding of society as relatively cohesive, homogenous and stable social units?” (feel free to simply summarize potential ideas)

English (URGENT)
How many paragraphs does a literary review have? This is a writing assignment for Grade 12 English. I need to write literary review on an article I find on the internet. I have an identification paragraph that talks about the author's credentials. Then I have a paragraph t...

world geography
in a traditional economic system which type of good is most often produced?

calculus
A tank with a rectangular base and rectangular sides is to be open at the top. It is to be constructed so that its width is 4 meters and its volume is 36 cubic meters. Building the tank costs $10 per square meter for the base and $5 per square meter for the sides. a) Write a f...

math
thank you soooooooooooo much!!!!

statistics
Three percent of the widgets produced by machine 1121 are defective. what is the probablity that a box of 30 widgets produced by that machine contains two or more defective widgets?

math
7 in by 8 in

math
A room measures 12 feet by 15 feet. find the scale that would allow the room to be shown as large as possible on a piece of paper. explain your reasoning.

College Physics
Thank you very much

College Physics
A monatomic ideal gas is compressed adiabatically from a pressure of 1.39 105 Pa and volume of 260 L to a volume of 39.0 L. What is the new pressure of the gas?

math
Two trains depart at the same time from the same station and travel in opposite directions. One train travels 25 mph faster than the other train. After 2 hours the trains are 162 miles apart. Find the speed of each train.

math
Two trains depart at the same time from the same station and travel in opposite directions. One train travels 25 mph faster than the other train. After 2 hours the trains are 162 miles apart. Find the speed of each train.

Science HELP
when traveling only a tiny distance through rock below the earths surface what happens to alpha particles ?

Science
what can alpha particles cause significant damage to ?

calculus
Being some distance from a mountain a man looks up at a 9 degree angle to see the top of the moutain. he then moves 13 miles away from the mountains at looks up at a 3.5 degree angle to see the top of the mountain. How tall is the mountain?

Physics
A child of mass 40 kg stands beside a circular platform of mass 100 kg and radius 1.8 m spinning at 2.6 rad/s. Treat the platform as a disk. The child steps on the rim. a) What is the new angular speed; rad/s b) She then walks to the center and stay there. What is the angular ...

Physics
A circular disk of mass 0.3 kg and radius 40 cm, initially not rotating, slips down a thin spindle onto a turntable (disk) of mass 1.7 kg and the same radius, rotating freely at 3.1 rad/s. a) Find the new angular velocity of the combination; A circular disk of mass 0.3 kg and ...

Physics
A turntable with a moment of inertia of 0.017 kg*m^2 rotates feely at 3.3 rad/s. A circular disk of mass 240 g and diameter 26 cm, and initially not rotating, slips down a spindle and lands on the turntable. a) Find the new angular speed. b) what is the change in kinetic energy?

Physics
A turntable with a moment of inertia of 0.017 kg*m^2 rotates feely at 3.3 rad/s. A circular disk of mass 240 g and diameter 26 cm, and initially not rotating, slips down a spindle and lands on the turntable.

biology
Ectothermic organisms have body temperatures that vary with the temperature of their surroundings. Discuss the effect this variation might have on the functioning of enzymes in these organisms. Suggest some ways ectothermic organisms might cope with this problem.

geometry
The area of a particular regular hexagon is x^3 square units, where x is the measure of the distance from the center of the hexagon to the midpoint of a side. what is the side length of a hexagon?

Precalculus
A builder has 600 feet of fencing to enclose three adjacent rectangular partioned areas. Find the largest possible enclosed area of the partioned areas.

Physics
A small disk of radius R1 is mounted coaxially with a larger disk of radius R2. The disks are securely fastened to each other and the combination is free to rotate on a fixed axle that is perpendicular to a horizontal frictionless table top. The rotational inertia of the combi...

math
A secretary can type 8 pages per hour.There are a total of 96 pages to type. How many pages remain to be typed after 6 hours?

Math
In a flower box there are nine red flowers and six white flowers. There are three times as many yellow flowers as white ones. How many flowers are there in all?

physics
A bicyclist is traveling at 19.3 km/h when he speeds up with a constant acceleration of 0.67 m/s2. What is his velocity after 5.00 s?

Science
A block of mass 3.1 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 14 cm. Treat the pulley as a disk. Find: a) the acceleration of the block; b) the tension in the rope; c) the speed of the block after it has fallen 55 cm, assuming it started at rest:

Science
A torque of 60 N*m acts on a wheel of moment of inertia 30 kg*m^2 for 5 s and then is removed. a) What is the angular acceleration of the wheel? b) How many revolutions does it make in 15 s if it starts at rest?

Science
Two particles with masses 3.1 kg and 6.6 kg are connected by a light rod of length 4 m. Find the moment of inertia of the system about an axis perpendicular to the rod and passing through: a) the midpoint of the rod; b) the center of mass of the system of particle:

Science
Four particles in the xy plane have the following masses and coordinates: 1 kg at (3 m, 3 m), 2 kg at (-2 m, 4 m), 3 kg at (3 m, -2 m) and 4 kg at (-3 m, -4 m). Find the total moment of inertia about: x-axis? y-axis? z-axis?

Science
At t = 0 s a flywheel is rotating at 30 rpm. A motor gives it a constant acceleration of 0.9 rad/s^2 until it reaches 70 rpm. The motor is then disconnected. How many revolutions are completed at t = 20 s?

Science
the work is on a forum that actually helps ppl

Science
Two blocks with masses m1 = 3.9 kg and m2 = 6.7 kg are connected by a string that hangs over a pulley of mass M = 2.2 kg and radius R = 0.11 m as shown above. The string does not slip. Assuming the system starts from rest, use energy principle find the speed of m2 after it has...

3rd grade math
8*5=40 40 add in two zeroes to get 4000

Future
Just Don't put your hopes too high. I've seen peoples lives crushed when they got rejected from their dream school. Some advice: Get Involved in Social Activities Really have to make an Impact -Its not just about the grades, but although those are really important. *PS...

Economics
How large would a corrective tax need to be to move this market from the equilibrium outcome to the socially-optimal outcome? A. An amount equal to P' minus P. B. An amount equal to P'. C. An amount equal to P. D. An amount equal to the external cost.

Economics
Suppose planting flowering shrubs creates a positive externality equal to $7 per shrub. Further suppose that the local government offers a $7 per-shrub subsidy to planters. The number of shrubs that are planted is then A. less than the socially optimal quantity. B. greater tha...

Physics
At t = 0 s a flywheel is rotating at 30 rpm. A motor gives it a constant acceleration of 0.9 rad/s^2 until it reaches 70 rpm. The motor is then disconnected. How many revolutions are completed at t = 20 s? number of revolutions?

Physics
Two blocks with masses m1 = 3.9 kg and m2 = 6.7 kg are connected by a string that hangs over a pulley of mass M = 2.2 kg and radius R = 0.11 m as shown above. The string does not slip. Assuming the system starts from rest, use energy principle find the speed of m2 after it has...

Physics
A torque of 60 N*m acts on a wheel of moment of inertia 30 kg*m^2 for 5 s and then is removed. a) What is the angular acceleration of the wheel? rad/s^2 b) How many revolutions does it make in 15 s if it starts at rest?

Physics
Smith

business
Does anyone know of any specific business turnaround strategies that have failed in the past? What happened with GM? Did they try to do a turnaround? What was their strategy and why did it fail?

business
Does anyone know of any specific business turnaround strategies that have failed in the past? What happened with GM? Did they try to do a turnaround? What was their strategy and why did it fail?

medical billing
The Local School District Has Asked Your Clinic To Submit a Proposal To Do Pre Employment Physicals FOr 60 Bus Drivers What Financial Or Accounting inFOrmation Do You Need To Submit The Proposal

Algebra
Use this proportionality: A correlation V square 2/3 How much more material is needed to manufacture an industrial plastic container with twice the volume of a similar container? A manufacturer of plastic containers prices its product by the amount of plastic used to make the ...

Chemistry
You have 1L of an ideal gas at 0 degree celsius and 10 atm pressure. You allow the gas to expand against a constant external pressure of 1 atm, while the temperature remains constant. Assuming, 101.3 J/liter-atm, find q,w,delta E, and delta H in Joules, A) if the expansion too...

math
line

math
a) use law of cosines b) use hero's formula

Physics
[Young & Freedman, 3-12] A military airplane on a routine training mission is flying horizontally (in the positive x-direction) at a speed of 120. m/s and accidently drops a bomb (fortunately not armed) at an elevation of 2090 m. Air resistance may be ignored and answer with t...

english
can you give me a good common sentence that has these words:to,two,and too

computers
In which type of network configuration is each device connected to exactly two other devices? (Points: 5) Bus Mesh Ring Star im confused between B and C plz help

computers
What type of network is a collection of devices that equally share the processing and storage without having a centralized server? (Points: 5) Client/server File server Peer-to-peer Web-based is it C

computers
Which type of data communication system is composed of a group of devices in close proximity? (Points: 5) CAN LAN MAN WAN Is it LAN

ETH501
1) What I would like for you to do is to choose three (3) "virtues" and then provide a clear definition of each. For example, you might choose such virtues as temperance, justice, honesty, fairness, generosity, or kindness. Be sure that you define each virtue using a...

Math
How to graph: x(x+3)^2 I understand its a cubic function. Anyone care to help me with solving and graphing it? thanks.

Chemistry
How many more grams of Li SO4 can you dissolve in 250g of water at 10.0 degrees C than at 50 degrees C. The solubility is 35.0 at 10 degrees and at 50 degrees C it is at 32.5. Thanks DR Bob for all your help.

Math (URGENT)
I understand why the vertex is there, I just don't understand what you mean by completing the square.

Math (URGENT)
How to graph this: Step 0: y=x(x-4) Step 1: y=x^2-4x What's next? Calculator shows vertex at (2,-4) I asked before, but I'm still stuck. Please help. thanks.

chemistry
Dr Bob, could you please tell me if this is right. Thanks again. Molar Mass of Na = 22.990 Cl = 35.453 NaCl = 58.453 g/mol Change g to moles……. moles= grams/molar mass = (25g) / 58.453 g/mol = 0.427moles Then M = moles/L = .427 moles/ 0.0105 = 406.66

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