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March 1, 2015

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Total # Posts: 78,300

physics
A copper telephone wire has essentially no sag between poles 34.0 m apart on a winter day when the temperature is −20.0°C. How much longer is the wire on a summer day when the temperature is 32.0°C? (Note: Table 19.1 is available for use in solving this problem.)
December 13, 2014

math
Fourteen and a third cream cakes were eaten for dessert! How many sixths of cream cake is this in total ?
December 13, 2014

physics
A 4.10 kg block is pushed along the ceiling with an constant applied force of F = 81.5 N that acts at an angle è = 52° with the horizontal, as in the figure below. The block accelerates to the right at 5.10 m/s2. Determine the coefficient of kinetic friction between...
December 13, 2014

Science
How to find Electron Configuration
December 13, 2014

grade 10 physics
john is walking at such speed so that his kinetic energy is 20 J, what is his speed? It started to rain John runs at a rate of 4.2 m/s find the change in KE.
December 13, 2014

Physics grade 10
sorry i forgot.john is walking at such speed so that his kinetic energy is 20 J, what is his speed? It started to rain John runs at a rate of 4.2 m/s find the change in KE if his mass is 50 kg.
December 13, 2014

math
Ivan bought 8 pounds of flour for $4 . How many pounds of flour did he get per dollar?
December 13, 2014

confidentiality in allied health
1.A  7.D  8.A  11.D  14.D  20.D
December 12, 2014

confidentiality in allied health
1.   Which one of the following statements is an example of hearsay? "The report said the patient died on January 15." "I saw the doctor administer the injection." "I checked the patient's blood pressure three times."...
December 12, 2014

Math
Use differentials (or equivalently, a linear approximation) to approximate sin(27 degrees) as follows: Let f(x) = sin(x) and find the equation of the tangent line to f(x) at a nice point near 27 degrees. Then use this to approximate sin(27 degrees).
December 12, 2014

Confidentiality in Allied Health
According to the AMA, what is a key reason behind a physician's duty of confidentiality to a patient?
December 12, 2014

Confidentiality in Allied Health
According to the AMA, what is a key reason behind a physician's duty of confidentiality to a patient?
December 12, 2014

Confidentiality in Allied Health
Which one of the following steps can shield against discovery of an incident report?
December 12, 2014

Confidentiality in Allied Health
What is one type of information that must be reported to the NPDB
December 12, 2014

Confidentiality in Allied Health
One requirement of the business records exception to the hearsay rule is that the
December 12, 2014

Confidentiality in Allied Health
Medical malpractice payments
December 12, 2014

Confidentiality in Allied Health
What is one type of information that must be reported to the NPDB?
December 12, 2014

Math
Expand and simplify: (5r - 6s + s2) (13r + 3s - 5s2) I got 65r^2-25rs^2+78rs+18s^2+3s^3+5s^4 but it's wrong?! Please correct me!
December 12, 2014

law and ethics in allied health
Which one of the following statements is an example of hearsay?
December 12, 2014

Math help!
Annual deposits of $3150 are made into a bank account earning 4 % interest per year. (a) What is the balance in the account right after the 15th deposit if interest is calculated annually? (b) What is the balance in the account right after the 15th deposit if interest is ...
December 12, 2014

law and ethics in allied health
Attorneys often take malpractice cases on a contingency fee arrangement, which means their fees
December 12, 2014

Math
You have an ear infection and are told to take a 200 mg tablet of ampicillin (a common antibiotic) four times a day (every six hours). It is known that at the end of six hours, about 5% of the drug is still in the body. What quantity of the drug is in the body right after the ...
December 12, 2014

law and ethics in allied health
The Patient Self-Determination Act requires all hospitals that receive Medicare and Medicaid funding to
December 12, 2014

Physics
A 3.32 kg mud ball has a perfectly inelastic collision with a second mud ball that is initially at rest. The composite system moves with a speed equal to one-eighth the original speed of the 3.32 mud ball. What is the mass of the second mud ball?
December 12, 2014

law and ethics in allied health
The branch of ethical theory that considers the origin and meaning of ethical principles is known as
December 12, 2014

law and ethics in allied health
Which type of normative ethics theory describes deciding to abort a woman's pregnancy to save the woman's life
December 12, 2014

law and ethics in allied health
Res ipsa loquitur means that the burden of proof
December 12, 2014

law and ethics in allied health
While a patient is having surgery, his doctor notices a small mole. The doctor doesn't think the mole is anything to worry about, but he decides to remove it to perform a biopsy. What is the doctor guilty of?
December 12, 2014

Physics
A 5.6 g coin sliding to the right at 22.6 cm/s makes an elastic head-on collision with a 16.8 g coin that is initially at rest. After the collision, the 5.6 g coin moves to the left at 11.3 cm/s. (a) Find the final velocity of the other coin. cm/s (b) Find the amount of ...
December 12, 2014

Physics
Two carts with masses of 4.66 kg and 3.00 kg move toward each other on a frictionless track with speeds of 4.77 m/s and 3.33 m/s respectively. The carts stick together after colliding head-on. Find the final speed.
December 12, 2014

Physics
A tennis player places a 60 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.057 kg tennis ball horizontally with a velocity of 35.4 m/s toward the north. What is the final velocity of the machine?
December 12, 2014

Math
In the polynomial 7.08x^4 - 126.92x^3 + 595.95x^2 - 241.81x + 2780.54, an x-value of 16 will give: 95,605?
December 12, 2014

chemistry
what mass of water is necessary to prepare 150.0g of 1.30% saline solution
December 12, 2014

chemistry
What mass of solution contains 15.0g of sulfuric acid in a 20.0% solution
December 12, 2014

physical
A ball of mass m=8.5, at one end of a string of length L=3.6, rotates in a vertical circle just fast enough to prevent the string from going slack at the top of the circle. Assuming mechanical energy is conserved, the speed of the ball at the bottom of the circle is:
December 12, 2014

physical
The potential energy of a 2.0-kg particle moving along the x axis is given by U(x) = 5.0 x^2. When the particle is at x = 1.0 m it is traveling in the positive x direction with a speed of 1.5 m/s. It next stops momentarily to turn around at x =
December 12, 2014

help
No
December 12, 2014

help
That is it
December 12, 2014

help
What is a pictorial stage of art?
December 12, 2014

s
In the draw a line that looks a snake
December 12, 2014

s
Me
December 12, 2014

s
What you would see in the children draw am not sure that mean?
December 12, 2014

Civics
Florida has 27 representatives while Massachusetts has nine representatives. Why do states have different numbers of representatives? Voters in each state decide how many people to send as representatives. The amount of land a state has within its borders determines the number...
December 12, 2014

Math
In the polynomial 7.08x^4 - 126.92x^3 + 595.95x^2 - 241.81x + 2780.54, an x value of 10 will give: 95,605?
December 12, 2014

crying
My stages of art porfolio
December 12, 2014

crying
Me on children drawings
December 12, 2014

crying
Yes
December 12, 2014

crying
What does mean to evaluation the drawings
December 12, 2014

s
I think am tell what in a child like I see trying to draw snake in the picture.
December 12, 2014

s
What a teachers sees
December 12, 2014

s
What does it mean to tell what you see in a child drawing ?
December 12, 2014

Algebra
What is a 4th degree polynomial model calculator for this set of data: 1994 2814 1996 3603 1998 5429 2000 3962 2001 4117 2004 3840
December 12, 2014

physics
A football punter accelerates a 0.47 kg football from rest to a speed of 6.4 m/s in 0.27 s, what constant force does the punter exert on the ball? N upward
December 12, 2014

Algebra
i have to take the standard form of the Equation 11x - 4y = 32 and change it to slope- Intercept form y = my + b Answer 4y = 11x - 32
December 12, 2014

physics
A common graphical representation of motion along a straight line is the v vs. t graph, that is, the graph of (instantaneous) velocity as a function of time. In this graph, time t is plotted on the horizontal axis and velocity v on the vertical axis. Note that by definition, ...
December 12, 2014

English
A person born in a country is blank to that country. What goes in the blank?
December 12, 2014

short story and poetry
what is the two words describing the main character in the piece of string?
December 12, 2014

Geometry
an airplane flying at an altitude of 10,000ft or 1.89 miles. The airport at which it is schooled to land is 50 mi away. Find the average angle at which the airplane must descent for landing round your answer to the nearest degree.
December 12, 2014

math
two integers, x and y have a product of 20. what is the least possible sum of x and y?
December 11, 2014

Math
Radical ((1-sinx)/(1+sinx))= (1-sinx)/cosx (absolute) Identity identity
December 11, 2014

Pre-Calc
Identity the identity i meant
December 11, 2014

Pre-Calc
Radical ((1-sinx)/(1+sinx))= (1-sinx)/cosx (absolute) Simplify
December 11, 2014

Chemistry
Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s) + H2SO4(aq) --> 2HCl(g) + Na2SO4(s) How many grams of HCl can be prepared from 2.00 mol H2SO4 and 2.56 mol NaCl?
December 11, 2014

Chemistry
Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s) + H2SO4(aq) --> 2HCl(g) + Na2SO4(s) How many grams of HCl can be prepared from 2.00 mol H2SO4 and 2.56 mol NaCl?
December 11, 2014

Chemistry
1. Calculate the concentration of H3O+, HC2O4-1, and oxalate ion (C2O42-) in a 0.175 M solution of oxalic acid (C2H2O4). [For oxalic acid, Ka1 = 6.5 ´ 10-2, Ka2 = 6.1 ´ 10-5.]
December 11, 2014

AP physics
i need help
December 11, 2014

Math
Thank you so much for your help!
December 11, 2014

Math
Can you subtract two negative numbers and get a positive difference? What are some examples, if it's possible? Can you add two negative numbers and get a positive sum? (I fairly certain it's not possible, but I'm not sure how to explain why it's not...)
December 11, 2014

nat
An effective piece of document does the all following but a.records information in a systemic fashion b. Tells the story being evaluated. C. Identifies Action items and areas of strength think a
December 11, 2014

math
Javia ran 8 laps to run a total of amile on monday how many laps will she need to run Tuesday to run 3/8 of a mile
December 11, 2014

h
Evaluation is conducted for which of following purposes ? To determine an individual process toward learning goals b.to determine an individual teacher effective s in the classroom. C.to determine the quality and effectives of a program or process am think c
December 11, 2014

h
When you received the results of an evaluation of your classroom ,which of following should ask yourself first? A.what did the children do wrong? B.what did I do ineffective ? C.what does date mean? D.what changes can I make right away?
December 11, 2014

Math
8/8 - 5/8 = 3/8 not cranes 6/6 - 1/6 = 5/6 grasshoppers 3/8 x 5/6 = 15/48 or 5/16 are grasshoppers Same answer as above just done differently.
December 11, 2014

Math
Ned folded a set of oragami figures. Of this set, 5/8 are cranes and 1/6 of the remainder are frogs. The rest are grasshoppers. What fraction of the origami figures are grasshoppers?
December 11, 2014

maths
Q: Prove- 2/log_8a - 4/log_2a= 1/log_4a i tried dividing 1/log_4a by 2/log_4(8) - 1/log_4a by 4/log_4(2) to get log_4(8)/2.log_4a - log_4(2)/4.log_4a =log_4(8)/log_4a^2 - log_4(2)/log_4a^4 =1.5/log4a^2 - .5/log4a^4 =1/.... I don't know how to deal with the denominator or ...
December 11, 2014

Math
Thank you Ms.Sue
December 11, 2014

Math
I got 18.375 If its wrong can you please tell me your answer and how you solved it I first divided 146.5 by 4 and got 36.625 then I subtracted 55 from 36.625
December 11, 2014

Math
How much does the cart weigh? Jason was hauling concrete blocks in a cart. When he had one block in the cart, the total weight of the cart with the block was 55 pounds. When he had 4 blocks in the cart, the total weight of the cart and the blocks was 146.5 pounds. How much did...
December 11, 2014

Math
prove: 1/log(base36)a = 2/log(base6)a i made a common base and then multiplied both sides with log(base6)a to get 2=log(base6)a/log(base6^2)a but this is as far as i can figure.
December 11, 2014

science
A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple? Explain your reasoning.
December 11, 2014

French
What is the difference between vieille and vieil in pronunciation?
December 11, 2014

Physics
A 80.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1320 N. If the diver comes to rest 5.1 m below the water's surface, what is the total distance between the diving board and the diver's ...
December 11, 2014

physics
An 56.0 N box of clothes is pulled 5.2 m up a 30.0° ramp by a force of 104 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.
December 11, 2014

math
A store sells small notebooks for $8 and large notebooks for $10. If you buy 6 notebooks and spend $56, how many of each size notebook did you buy? my answer: 7 small notebooks and 5 large notebooks is this right?
December 11, 2014

Math
Your fishing bobber oscillates up and down from the current in the river in a harmonic motion. The bobber moves a total of 5.0 inches from its high point to its low point then returns up to the high point every 5 seconds. Write an equation modeling the motion of the bobber at ...
December 11, 2014

Math
The function f(t)=37sin(pi/3 -5)+81 is used to represent the changes in temperature of a chemical compound used in a lab. What is the amplitude? I got 5, is this correct. I have the options of 81, 5, 6pi, 37, and 2
December 11, 2014

Trig
What is the period of f(x)=sin4x. I got pi/2 but on my answer list, it is not on there. a.4pi b.2pi c.pi d.1/2pi Which one would i choose?
December 11, 2014

Math
At the amusement park, you decide to ride the Ferris wheel, which has a maximum height of 50 meters and a diameter of 35 meters. It takes the wheel 13 minutes to make one revolution. Write the sinusoidal function, f(t), that models the height of your chair at any time, t I got...
December 11, 2014

english
When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects.
December 11, 2014

Math
What is the domain of this function f(x)=sin^-1 x?
December 11, 2014

Economics
where
December 11, 2014

physics
An 56.0 N box of clothes is pulled 5.2 m up a 30.0° ramp by a force of 104 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy. J
December 11, 2014

math
the ratio of boys to girls in a club is 7:4, there are 21 fewer girls than boys , what is the total number of children in the club?
December 11, 2014

cem
Iron Bromide
December 11, 2014

physics
A child and sled with a combined mass of 45.0 kg slide down a frictionless hill that is 8.79 m high. If the sled starts from rest, what is its speed at the bottom of the hill? m/s
December 11, 2014

french
Hello. I have this bit of french homework. I've already some of it. Please help correct it and help me in the last few blanks. 15. Comme je suis en retard, nous _______ chez nous (restions, reste, restons). 25. Tous les samedis je _____________ des crépes. (Mangeais...
December 11, 2014

physics
A plane designed for vertical takeoff has a mass of 8.2 ✕ 103 kg. Find the net work done by all forces on the plane as it accelerates upward at 10.5 m/s2 through a distance of 25.4 m after starting from rest. J
December 11, 2014

chemistry
write an equation that describes the equilibrium present in a saturated solution of Cu3(PO4)2 someone please explain to me, thanks!
December 11, 2014

chemistry
A solution contains 0.20 M Cl- and 0.20 M SO4^2-. a) identify a cation that could be added to the solution to give a precipitate with only one of these anions. MY answer: Cu+ b) write the net ionic equation for the precipitation reaction in part a) MY answer: Cl^- + Cu^+ ==>...
December 11, 2014

Mathematics
Insert three arithmetic mean and solve the nth term of 1 and 2
December 11, 2014

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