Sunday
December 21, 2014

Posts by Valerie


Total # Posts: 178

liberal arts
A turtle is at the bottom of a 13 foot well. Each day it crawls up 5 feet, but each night it slips back 3 feet. After how many days will the turtle reach the top of the well?
November 24, 2014

accounting
Swan Creek Company has 40,000 shares of cumulative preferred 2% stock, $60 par and 50,000 shares of $50 par common stock. The following amounts were distributed as dividends:year 1 30000 my answer was 18000 common stock
September 14, 2014

Physics
A small fish is dropped by a pelican that is rising steadily at 0.44 m/s. After 2.6 s, what is the velocity of the fish? The acceleration of gravity is 9.81 m/s^2 Answer in units of m/s & How far below the pelican is the fish after the 2.6 s? Answer in units of m
September 11, 2014

Test and Measurements
You are interested in seeing if a new test will help to determine who will be successful in a training program. The current rate of success is 70% for 200 students. When the new test is implemented, the rate increases to 85% for the 50 students who pass the test and are ...
June 12, 2014

English
I think that 3 is a pretty good one since that't what your writing about . The expectations being harmful .
June 3, 2014

Math
Two sides of a triangle measure 7 cm and 15 cm . Which of the following could not be the length of the third side ? A. 5 cm B. 9 cm C. 15 cm D. 22 cm I'm confused because at first I tried Pythagorean thereom and it didn't really work .
June 3, 2014

physcial science
Jennifer, who has a mass of 50.0 kg, is riding at 35.0 m/s in her red sports car when she must suddenly slam on the brakes to avoid hitting a deer crossing the road. She strikes the air bag that brings her body to a stop in 0.500 s. What average force does the seat belt exert ...
May 8, 2014

phisics
Which of the following situations represents a negative displacement? (Assume positive position is measured vertically upward along a y-axis.)
April 29, 2014

Trigonometric Function
A Ferris wheel has a radius of 10 meters and is revolving 6 times each minute (wheel's frequency.) The wheel's center is 12 meters from the ground. If time starts on the ground, then find a sine function that shows the height from the ground for a car on the Ferris ...
April 14, 2014

Pre cal
Translate the graph of y=sinx to the right by pi units, and then reflect this curve about the x-axis what graph result?
April 10, 2014

Physics
a 5 kg crate falls from a height of 2.0 m into an industrial spring scale. When the crate comes to rest the compression of the spring is 24 cm. what is the spring constant?
April 4, 2014

Child Care
Please help me, I need to make a Lesson Plan on diversity, for Pre-k, I choose a story book, of children from different parts of the world, each going to and learning in school or on the outside. The goal should show differences but also its similarities. I need a learning ...
March 9, 2014

accounting
determine how the disallowance of LIFO will impact U.S. multinational firms that report under IFRS.
January 18, 2014

math
Which one(s) of these twelve brands would be considered outliers, if there are indeed any at all? How extreme does something have to be considered an outlier? Brand,Strawberry,Vanilla 1,140,140 2,210,230 3,200,170 4,200,180 5,110,100 6,180,180 7,210,150 8,140,150 9,150,150 10,...
November 14, 2013

physics
A 7g bullet going at 300m/s hits and embeds itself into a 3.456kg block held on a frictionless table by a spring with k = 40N/m. Find the speed of the block and bullet after collision.
November 8, 2013

Computer Science
Write a class “Program1” that has the method “allLess” (below) that receives two arrays of integers and returns true if each element in the first array is less than the element at the same index in the second array. For example, given the arrays {42, 2, 30...
September 3, 2013

English
The assignment just says "literary terms". It does not say which terms.
August 29, 2013

English
I am doing my summer reading for 9th grade reading assignment & need to write about 10 passages from a variety of literary terms. Could you explain some of these terms?
August 29, 2013

Statistics
Blossom's Flowers purchases roses for sale for Valentine's Day. The roses are purchased for $10 a dozen and are sold for $20 a dozen. Any roses not sold on Valentine's Day can be sold for $5 per dozen. The owner will purchase 1 of 3 amounts of roses for Valentine&#...
August 6, 2013

College Physics
A speck of charged dust with a mass of 39mu g. is kept levitating by putting it in an electric field. If you must apply a field of 10 N/C to keep it suspended in mid-air, what is the charge on the speck of dust? Can someone please help soon? I got this wrong on my last test ...
April 25, 2013

College Physics
The rectangular coils in a 201-turn generator are 14 cm by 17 cm. What is the maximum emf produced by this generator when it rotates with an angular speed of 525 rpm in a magnetic field of 0.81 T? I'm not sure what equations to use.
April 25, 2013

Physics
A particle with a charge of 31 µC moves with a speed of 62 m/s in the positive x-direction. The magnetic field in this region of space has a component of 0.50 T in the positive y-direction, and a component of 0.61 T in the positive z-direction. What is the magnitude and ...
April 25, 2013

Physics
A particle with a charge of 31 µC moves with a speed of 62 m/s in the positive x-direction. The magnetic field in this region of space has a component of 0.50 T in the positive y-direction, and a component of 0.61 T in the positive z-direction. What is the magnitude and ...
April 25, 2013

Physics
Two trains with 112-Hz horns approach one another. The slower of the two trains has a speed of 26 m/s. What is the speed of the faster train if an observer standing near the tracks between the trains hears a beat frequency of 4.7 Hz? (Express your answer to the nearest 0.1 m/s...
April 24, 2013

CHM
Consider the following reaction: HCN <--> H+ + CN- delta H = 315kJ If 1.00 mole of CN- in the form of NaCN was added to equilibrium mixture, describe the effect on [H+], [HCN], [CN-], pH, and heat.
April 16, 2013

Physics
A solenoid is 3.2 m long and has 500 turns per meter. What is the cross-sectional area of this solenoid if it stores 0.32 J of energy when it carries a current of 12 A? So I used L = 2*E / I^2; and then I used A = L*l / (uo * N^2) but my answer isn't coming out right at ...
April 14, 2013

Physics
Consider the RL circuit shown in the figure, where R = 5.0 Ω and L = 4.6 H. How much energy is stored in the inductor after the switch has been closed a long time? I would know how to do this if they actually gave me a value for time, but I'm lost now. Can someone ...
April 14, 2013

chemistry
What would the boiling point be of 300 ml with 40 g CuCl2 dissolved in it?
April 9, 2013

chemistry
What would the boiling point be of 300 ml with 40 g CuCl2 dissolved in it?
April 9, 2013

chemistry
What would the boiling point be of 300 ml with 40 g CuCl2 dissolved in it?
April 9, 2013

math
help
April 9, 2013

math
How far does the tip of the minute hand of a clock move in 100 minutes if the hand is 3.3 inches long?
April 7, 2013

Physics
A magnetic field increases from 0 to 0.09 T in 3.0 s. How many turns of wire are needed in a circular coil 20 cm in diameter to produce an induced emf of 7.5 V? Please help soon.
April 7, 2013

Physics
A single-turn square loop of side L is centered on the axis of a long solenoid. In addition, the plane of the square loop is perpendicular to the axis of the solenoid. The solenoid has 1490 turns per meter and a diameter of 6.00 cm, and carries a current of 2.46 A. Find the ...
April 7, 2013

Physics
A single conducting loop of wire has an area of 7.4 10-4 m2 and a resistance of 110 Ω. Perpendicular to the plane of the loop is a magnetic field of strength 0.18 T. At what rate (in T/s) must this field change if the induced current in the loop is to be 0.24 A? I really ...
April 7, 2013

math
Convert the angle given in radians to degrees. 174 and -360
April 7, 2013

math
Danny has 75 marbles in red color and blue color. He found out number of red marbles is 15 less than twice of the blue marbles. What are the numbers of red and blue marbles does danny have?
April 3, 2013

Physics
In Oersted's experiment, suppose that the compass was 0.30 m from the current-carrying wire. If a magnetic field of 1/3 the Earth's magnetic field of 5 10−5 T was required to give a noticeable deflection of the compass needle, what current must the wire have ...
March 24, 2013

Physics
To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 12 cm in diameter and 45 cm in length. You would like a 2.0-A current to produce a 2.1-kG magnetic field inside your solenoid. What is the total length of wire you will need to meet these ...
March 24, 2013

finance
(Bond valuation) Eagle Ventures has a bond issue outstanding with an annual coupon rate of 7 percent and 4 years remaining until maturity. The par value of the bond is $1,000. (a) Determine the current value of the bond if present market conditions justify a 14 percent ...
March 8, 2013

Math
How do I factor y^3 + y^2 -4y -4
March 7, 2013

Finance
Suppose you own $1 million worth of 30-year Treasury bonds. Is this asset riskless?
March 6, 2013

Physics
A 11-V battery is connected to three capacitors in series. The capacitors have the following capacitances: 5.3 µF, 10.7 µF, and 31.8 µF. Find the voltage across the 31.8-µF capacitor. Please Help!
February 24, 2013

Physics
A parallel-plate capacitor is made from two aluminum-foil sheets, each 3.90 cm wide and 10.3 m long. Between the sheets is a mica strip of the same width and length that is 0.0225 mm thick. What is the maximum charge that can be stored in this capacitor? (The dielectric ...
February 24, 2013

Physics
As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and a cloud at an altitude of 590 m to be the other plate. Assume the surface area of the cloud to be the same as the area of a square that is 0.50 km on a side. (a) What is the ...
February 24, 2013

science
While rearranging a dorm room, a student does 286 J of work in moving a desk 1.3 m. What was the magnitude of the applied horizontal force?
February 21, 2013

science
While rearranging a dorm room a student does 286 J of work to move a desk 1.3 m. What was the magnitude of the applied horizontal force?
February 21, 2013

Chemistry
What is the lewis dot structure for copper?
February 21, 2013

Math
The Americans with disabilities act requires that wheelchair ramps have a slope no greater than 1/12 what is the minimum horizontal length a 2 foot high ramp can have ?
January 26, 2013

Chemistry
Assume that 7.2 L of I2 are produced at STP according to the following balanced equation: 2KI+Cl - 2KCl+ I2 How many grams of KI (MOLAR MASS=166.002G/MOL) reacted
January 15, 2013

Chemistry
Assume that 7.2 L of I2 are produced at STP according to the following balanced equation: 2KI+Cl - 2KCl+ I2 How many grams of KI (MOLAR MASS=166.002G/MOL) reacted
January 15, 2013

Chemistry
Assume that 7.2 L of I2 are produced at STP according to the following balanced equation: 2KI+Cl - 2KCl+ I2 How many grams of KI (MOLAR MASS=166.002G/MOL) reacted
January 15, 2013

math
1 out of 6
January 15, 2013

Precalculus
5. A water wheel has a radius of 60 feet, and the center is 14 feet above the water level. The water wheel makes a complete rotation every 45 minutes. A specific cup starts at the top of the wheel. Write a sine equation to model the above water wheel.
January 11, 2013

math
interest is $1104, principal is $4600, and time is 4 yrs. What is rate?
January 1, 2013

math
interest is 67.50 and rate is 3%, and time is 3 years. What is the principal?
January 1, 2013

Honors Physics
If the potential energy is 1962000 what is the kinetic energy of a boulder weighing 200 kg
December 9, 2012

Economics
Secondhand Smoke Kills 600,000 People a Year: Study Secondhand smoke globally kills more than 600,000 people each year, accounting for 1 percent of all deaths worldwide, according to a new study. . . . Researchers estimated that annually secondhand smoke causes about 379,000 ...
November 23, 2012

Economics
5. If the average adult produces $90,000 of output per year, how much output is lost as a result of adult deaths from secondhand smoke, according to the News on page 74? $
November 23, 2012

thermochemistry
A chemical reaction takes place in a container of cross-sectional area 100 cm2 . As a result of the reaction, a piston is pushed out through 19 cm against an external pressure of 596 torr. What is the value for w for this reaction?
October 14, 2012

Chemistry
So you're saying that if you have the Ka of any acid and you can use the ionization constant of water to find Kb of its conjugate base?
September 26, 2012

Chemistry
What is the pH of a 0.50 M solution of NaNO2 if the Ka of H20x = 4.5 x 10^-4. I know that you use the Ka to find Kb and solve from there, but why?
September 26, 2012

chemistry
(4.68 g)x (1 cm^3 / 2.34 g) = cubic cm of born. The unit of grams is cancelled.
September 26, 2012

Science
Xylem dries up and dies what is the effect
September 19, 2012

AP chemistry
Sulfuric acid (H2SO4) is prepared commercially from elemental sulfur using the contact process. In a typical sequence of reactions, the sulfur is first burned:S + O2 → SO2 , then it is converted to SO3 using a catalyst: 2 SO2 + O2 → 2 SO3 . The resulting SO3 ...
September 5, 2012

AP chemistry
A 22.709 g sample of impure magnesium carbonate was heated to complete decomposition according to the equation MgCO3(s) → MgO(s) + CO2(g). After the reaction was complete, the solid residue (consisting of MgO and the original impurities) had a mass of 15.3018 g. Assuming...
September 5, 2012

physics
A cannon on a level plain is aimed 50 degrees above th e horizontal and a shell is fired with a muzzle velocity of 1200 ft/s toward a vertical cliff 3200 ft away. How far above the bottom does the shell strike the side wall of the cliff?
September 4, 2012

Math
If a number has a 9 in the ones place,it is always divisible by 3
August 20, 2012

PreCalculus (PLEASE HELP, IM BEGGING!)
Can anyone please explain these problems to me?? I really need help!I need to simplify these trig expressions but I don't understand how my teacher is doing it at all and I have a quiz on this tomorrow! I've really been trying but I just don't get it! 1)Mulitply: [...
May 5, 2012

chemistry
Use bond energies (Table below) to estimate H (kJ) for the following gas-phase reaction: (CH3)2CHOH(g) ==> (CH3)2C=O(g) + H2(g)
April 12, 2012

British Literature
What figure of speech is used in this statement: "Good Mistress Accost, I desire better acquaintance."
February 12, 2012

Math
Mrs. Klein made some tarts. She sold three fifths of them in the morning and one fourth the remainder in the afternoon. If she sold 200 more tarts in the morning than in the afternoon how many tarts did she make?
February 7, 2012

science
Ions are electrically charged particles that are formed when certain compounds are dissolved in water. These solutions will conduct electricity. The Swedish scientist Svante Arrhenius coined the term ion (which means wanderer) to explain why solutions of electrolytes will ...
January 18, 2012

science
As temperature rises, solids generally become more soluble in water, but gases become less soluble. If a soft drink contains high concentrations of sugar and carbon dioxide, which of the following may be expected to happen if it is cooled down? A) Sugar may precipitate out. B...
January 18, 2012

science
Amniotes vertebrates are generally classified into three orders: Reptilian, Ayes (birds), and Mammalian. Of the following, which group of three animals contains one member of each order?
January 18, 2012

science
Chemical fertilizers stimulate plant growth; but if the concentration is too high, they may damage roots. What precautions concerning chemical fertilizers must a gardener take?
January 18, 2012

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 ...
January 18, 2012

math
two fifth of the students walked to school what fraction did not walk?
January 17, 2012

Statistics
How do you solve this? 28!/(28-28)!28! * 0.88^28 *0.12^28-28 I need help on how to solve this on a graphing calculator(TI-83 Plus) Can you help me? Please show step by step instructions! Thank you!!!
October 25, 2011

Science 6th grade
i need help trying to do a class project on a ocean ecosystem
September 22, 2011

Philosphy
Ms. Ferguson who is practically blind has testified that she saw the defendant stab the victim in the twilight shawdows a 100 yards from the incident. Therefore members of the jury you must find the defendant guilty. Identifiy this fallacy
September 18, 2011

computer literacy
Online education has evolved over the last ten years as much as the cell phone. Given this, what have been some of the major improvements and changes in the digital classroom?
May 9, 2011

computer literacy
If I post a poem on my facebook site and someone cuts and pastes it on their site is that a case for stealing my intellectual property
May 9, 2011

Oncology Report
Ok, we're are supposed to do a one page annual report on oncology and I'm having trouble understanding exactly what I'm supposed to do. Our teacher gave us a sheet saying "You are asked by the CEO of a hospital to contribute to the annual report. She wants you...
May 3, 2011

Algebra
Omg! Would you just please help me I have 3 kids and I'm cooking dinner, please just help me understand this one!
April 22, 2011

Algebra
The town of appleville recorded the following dates and populations. YEAR POPULATION 1985 51.5 1985 53 1990 56 1995 62 Estimate the approximate population of Appleville in 1988 by finding an equation and then substituting. HELP!!!
April 22, 2011

Math
Thank you(:
April 22, 2011

Math
That is no where near what I need I need help please!
April 22, 2011

Math
Use patterns or a linear equation to complete the table. 11) x y 1 -1 3 3 5 7 10 ? 50 ? 100 ? I don't understand what I'm suppose to do! Please hep and explan well! Thank you!
April 22, 2011

Math
Write the answer to the problem as an algebraic expression. (Tell how you got your answer.) 1. Today the Center City baseball team scored 5 runs. The day before yesterday they scored W runs. How many runs did they score in these two days? 2. A theater ticket for adults is a ...
April 22, 2011

Math
Tell whether the quantity is constant or variable. 1. The price per gallon of gasoline. 2. The distance between Chicago and Boston. I need explanation for each also.... Thank you!
April 22, 2011

Math
Three blue and five red balloons are each tied to a string and the strings are held together. If one of the strings is selected at random, determine the odds in favor of the balloon being red.
April 16, 2011

math
a. The sales representative informs you that there is a total of 96 houses for sale. Of these 96, some have one floor plan while the others have a different floor plan. Use x to represent floor plan one and y to represent floor plan two. Write an equation that illustrates the ...
March 29, 2011

math
a. The sales representative informs you that there is a total of 96 houses for sale. Of these 96, some have one floor plan while the others have a different floor plan. Use x to represent floor plan one and y to represent floor plan two. Write an equation that illustrates the ...
March 29, 2011

Math
If each angle of a regular polygon measures 140 degrees, how many sides does it have?
March 26, 2011

Math
How many ways can 5 people be arranged in a straight line if there are 12 people to choose from
March 26, 2011

Math
In how many ways can 7 people line up for play tickets
March 26, 2011

Math
In how many ways can 7 people line up for plane tickets?
March 26, 2011

Math
Make a table to display your answer. When a coin is tossed four times, sixteen equally likely outcomes are possible as shown below: HHHH HHHT HHTH HHTT HTHH HTHT HTTH HTTT THHH THHT THTH THTT TTHH TTHT TTTH TTTT
March 26, 2011

Math
A contractor is considering a sale that promises a profit of $30,000 with a probability of .7 or a loss of $4,000 with a probability of .3. What is the expected profit?
March 26, 2011

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