# elaine

Most popular questions and responses by elaine-
## physics

A 20kg traffic light hangs midway on a cable between two poles 40meters apart. If the sag in the cable is .4 meters, what is the tension in each side of the cable?

*asked on October 19, 2008* -
## physics

A stone is dropped from a 75 m high building. when this stone has dropped 15m, a second stone is thrown downward with an initial velocity such that two stones hit the ground at the same time. find a. time taken for the first stone to fall 75m. (b) the time

*asked on October 19, 2010* -
## english

Some people are so ____ living near a nuclear plant that they want the plant's license to be ___. They say the plant threatens ever homeowner's right to safety.

*asked on February 24, 2013* -
## Computers(Java Programming)

Service Class: Lottery Write a Lottery class that simulates a lottery. The class should define an array of five integers named lotteryNumbers. The constructor should use the Random class (see the Java API) to generate a random number in the range of 0 to

*asked on September 8, 2009* -
## Statistics

The percentage of various colors are different for the "peanut" variety of M&M's candies, as reported on the Mars, Incorporated website. Brown: 12% Yellow: 15% Red: 12% Blue: 23% Orange: 23% Green: 15% A 14-ounce bag of peanut M&M's is randomly selected

*asked on March 28, 2015* -
## Math

You begin to fill a bucket with water at 9 am. Each minute you double the amount of water in the bucket. If it takes you 1 hour to fill the bucket, at what time is the bucket one-quarter full?

*asked on April 3, 2017* -
## Chemistry

a 25.0 mL sample of .050 M solution of aqueous trimethylamine is titrated with a .063 M solution of HCl. calculate pH the solution after 10.0 mL, 20.0 mL, 30.0 mL of acid have been added. pKb of (CH3)_3_N= 4.19 at 25 degrees C

*asked on November 11, 2012* -
## English

Change the italicized clause to nominative absolute. As the game was over the contestants quietly filed out of the room

*asked on January 18, 2016* -
## PHYSICS

A proton is confined to a nucleus whose diameter is 5.5*10^-15m. If this distance is considered to be the uncertainty in the position of the proton, what is the minimum uncertainty in its momentum? I don't really get the uncertainty concept, and how can I

*asked on April 29, 2008* -
## Physics

The force shown in the figure moves an object from x = 0 to x = 60 m, where the interval between vertical dashed lines is 20 m. (a) How much work is done by the force? (b) How much work is done by the force if the object moves from x = 20 to x = 60 m? (IN

*asked on July 14, 2010* -
## physics

A stone is dropped from a 75 m high building. when this stone has dropped 15m, a second stone is thrown downward with an initial velocity such that two stones hit the ground at the same time. find a. time taken for the first stone to fall 75m. (b) the time

*asked on October 19, 2010* -
## 3rd grade-art

In the art piece "Diego on My Mind" by Frida Kahlo, what can be inferred or concluded about the artist based on this painting? Use`details in the painting to support the ideas.

*asked on January 8, 2009* -
## Math

The front door of a house is 80 inches tall. What is the volume of the door? Top is 2 in. the length is 36 in. What is the volume of the door? A bedroom door in the house has the same dimensions as the front door, but the length is 30 inches rather than 36

*asked on April 14, 2018* -
## Finance

5.3 The manager of a large computer network has developed the following probability distribution of the number of interruptions per day: Interruptions (X) P1X2 0 0.32 1 0.35 2 0.18 3 0.08 4 0.04 5 0.02 6 0.01 a. Compute the expected number of interruptions

*asked on November 27, 2012* -
## PHYSICS

how far apart are two point charges of 5.0x10^-6 C and 6.0x10^-6 C if they produce an electric force on each other of 0.62 N?

*asked on February 6, 2016* -
## Chemistry

How many milliters of 1.80M HCl are required to react with 30.0 grams of calcium hydroxide according to the given equation: CA(OH)2(s) + 2HCl(aq)> CaCl2(aq) + 2H2O(l)

*asked on April 3, 2011* -
## ALGERBRA

CAN YOU PLEASE TELL ME THE SOLUTION FOR THE FOLLOWING 5X>-4 BUT THE SIGN HAS A LINE UNDER IT I REALLY NEED HELP

*asked on March 29, 2011* -
## Chemistry

For the given reaction, how many moles of water will be formed starting with 45.0 moles of aluminum hydroxide: 2AL(OH)3(s) + 3 H2SO4 > Al2(SO4)3 + 6H2O

*asked on April 3, 2011* -
## Teacher Aide

If you're preparing a bulletin board,how many ideas should you try to get across at one time?

*asked on October 28, 2014* -
## 3rd grade-art

In the painting "Self Portrait" by Judith Leyster. How does the artist feel about herself? Use details in painting to support answer.

*asked on October 16, 2008* -
## calculus

Use the method of cylindrical shells to find the volume of the solid obtained by rotating the region bounded by the given curves about the x-axis. xy = 2, x = 0, y = 2, y = 4

*asked on March 7, 2017* -
## programming

Create the logic for a program that calls a method that computes the final price for a sales transaction. The program contains variables that hold the price of an item, the salesperson's commission expressed as a percentage, and the customer discount

*asked on February 18, 2016* -
## math

A turtle starts moving north at 4 feet per minute from a point P. Five minutes later, a snail starts moving south at 2 feet per minute from a point 50 feet due east of P. What is the distance (in feet) between the two animals five minutes after the snail

*asked on September 22, 2014* -
## Thermodynamics

The initial state consists of a closed system containing one mole of water (liquid) at 85°C and 1 atmosphere pressure. The immediate surroundings are also at 85°C and 1 atmosphere pressure. The change in state is described as this one mole of liquid

*asked on October 3, 2013* -
## Chemistry

Assuming all gases are at the same temperature and pressure, how many milliliters of hydrogen iodide are produced from 155 of ?

*asked on November 2, 2012* -
## Physics

Bob jumps from a 2.0 m high table and wants to jump over a 0.85 m radius ball. How fast must Bob move horizontally to not land on the ball? If we use kinematics equations for projectile, the answer is 2.66 m/s; however, with this velocity the person will

*asked on September 19, 2012* -
## math

Y^2-4y+3/y^2-9*4y+12/y2-2y+1= 16y^4+36/2y^5+8 check this please

*asked on May 24, 2010* -
## algebra

One day the temperature dropped from 4 degrees F to -15 dgrees f. How many degrees did it drop?

*asked on December 22, 2009* -
## PHILOSOPHY

1. Some regular churchgoers believe that taxpayers' dollars should not be used to fund laboratories that carry out tests on animals for medical research. Hence, it is wrong to go on spending taxpayers' dollars for that purpose. Answer: False Cause 2. Yogi

*asked on September 26, 2017* -
## Physics 30

Two point charges objects produce an electric force on each other of 3.6x10^-2 N. What is the electric force between them if the distance is increased five times?

*asked on February 6, 2016* -
## Materials Transport

You have a vertical plate which is 20 cm square and 0.75 cm thick. The plate has a thermal conductivity of 4 W/mK. The top edge of the plate is kept at a temperature of 325⁰C, and the bottom edge is kept at a temperature of 275⁰C. The vertical edges of

*asked on September 30, 2013* -
## HCS/552

How does the Afghanistan opium black market affect the U.S. pharmaceutical industry?

*asked on April 29, 2011* -
## chemistry

What would the wavelength of radiation whose frequency is 5.75*10 to the 9th cycles per second be? Name the type of radiation it is?

*asked on February 10, 2011* -
## math

Find the z-score such that the area under the standard normal curve to the left is 0.82. ______ is the z-score such that the area under the curve to the left is 0.82. (round 2 decimal places as need)

*asked on December 3, 2013* -
## Calculus

assume that f(x)= x^3(x-2)^2 a) find the x-intercepts algebraically b) find all the critical points c) use the first derivative test to determine local minimums and maximums d)find all inflection points e)state the concavity of the graph on appropriate

*asked on April 24, 2012* -
## Math 208

(x+1)(x+3)=

*asked on February 25, 2012* -
## Chemistry

For the given reaction, how many moles of ammonia will result from 4.0 moles of nitrogen N2(g) + 3H2(g) > 2NH3(g)

*asked on April 3, 2011* -
## math

(6x-5y)^2= 36x-25y 6x-5y (4x+5y)^2 16x+25y 4x+5y Please check to see if right. If not corrected for me.

*asked on June 2, 2010* -
## algebra

Help me solve this problem please, I have tried so many time.I can not seem to get the problem right. x +12 2 x+ 12 < -8 =x +12 > 2 x =4 > -10 is this right

*asked on April 5, 2009* -
## 3rd grade music

Song, "America" by Neil Diamond. In stanza 7, "Got a dream they've come to share" what does this line mean and what do the people have in common.Use examples from song to support answer.

*asked on November 8, 2008* -
## PHYSICS

The average kinetic energy of an atom in a monatomic ideal gas is given by KE=3/2kT, where k=1.38*10^-23J/K and T is the Kelvin temperature of the gas. Determine the de Broglie wavelength of a helium atom (mass=6.65*10^-27kg) that has the average kinetic

*asked on April 29, 2008* -
## Math

A bedroom door in the house has the dimensions as the front door, which is at top 2 in. and the bottom is 36 in. but the length is 30 inches rather than 36 inches. How much greater is the volume of the front door than the bedroom door?

*asked on April 13, 2018* -
## Physic

A force of 7000N is applied to drag a 500 kg cow across a flat level floor to McSlaughter House. The cow has an acceleration of 2.5 m/s2. (a) what's the weight of the cow? (b) what is the normal force acting on the cow? (c) What is the resultant force that

*asked on March 3, 2017* -
## Materials Transport

You have a vertical plate which is 20 cm square and 0.75 cm thick. The plate has a thermal conductivity of 4 W/mK. The top edge of the plate is kept at a temperature of 325⁰C, and the bottom edge is kept at a temperature of 275⁰C. The vertical edges of

*asked on September 30, 2013* -
## Calculus

If x=2sec (theta), express tan(theta) in terms of x.

*asked on February 23, 2012* -
## geometry

Which is the correct ratio of sides for a 30-60-90 triangle

*asked on December 8, 2009* -
## 3rd grade art

In the painting "Sunday Afternoon on the Island of La Grande Jatte", by George Seurat, what is the story the painting is telling? What is happening?

*asked on March 31, 2009* -
## 3rd grade art

In the picture, "Reading to Children" by Mary Cassatt. What is going on in the painting. She has to write a story. We started with, she is reading to the children. They look focused and interested on what she is reading and the teacher says, redo :( can

*asked on October 4, 2008* -
## Early Childhood Ed.

I have a question but think I know the right answer. Just need someone to verify. Which is not an example of the typical toddler behavior? 1.toddlers are fairly capble of self-feeding 2.toddlers don't like food mixtures 3.toddlers show decided food

*asked on April 21, 2007* -
## Physic

A 25 kg box is set on a flat surface with us=0.62 and uk=0.49. A force of 100N is applied to the box through a rope which makes and angle of 30 degrees with the horizon. (a)what's the component of Fa that is attempting to move the box sideways? (b) what's

*asked on March 3, 2017* -
## Math

A shaded circle has a diameter of 12 feet. Within the circle, is another white circle with a radius of 2 feet. What is the area of the shaded circle.

*asked on May 17, 2015* -
## Physics

A baseball with a mass of 150 g is thrown horizontally with a speed of 39.5 m/s (88 mi/h) at a bat. The ball is in contact with the bat for 1.15 ms and then travels straight back at a speed of 45.0 m/s (101 mi/h). Determine the average force exerted on the

*asked on March 2, 2014* -
## Calculus

I have to use integration by parts to integrate tan^-1 (1/x)dx. I'm not sure what to use as u or dv. We were taught to use uv-integral of (vdu) to do this.

*asked on February 15, 2012* -
## Chemistry

Calculate the density of 150g of a 25% by wieght solution of sodium chloride dissolved in water and the volume of solution is 145ml.

*asked on January 24, 2012* -
## math

A motorcycle leaves Colorado Springs traveling north at an average speed of 47 miles per hour. One hour later, a car leaves Colorado Springs traveling south at an average speed of 54 miles per hour. How long after the motor cycle leaves will it take until

*asked on May 31, 2011* -
## Logic

Need help supplying proo f for the following problem using the rules of inference 1. (Z.Y)> X 2. ~O>Z 3. ~Y>O 4. ~O.T /S

*asked on May 16, 2011* -
## alegebra

a cellular phone company offers a contract for which the cost C, in dollars, of t minutes of telephoning is given C=0.25(t-500)+80.95, where it is assumed that t>=500 minutes. What times will keep cost between $123.45 and $146.95?

*asked on May 2, 2010* -
## analogy

accept:except:threw:?????

*asked on January 5, 2010* -
## 4th grade-music

In the song, "Somebody" by Reba M cEntire, I have to retell the story bein told in the song. Is the song about finding somebody special to fall in love with?

*asked on September 22, 2009* -
## algebra

I need help with these problem someone told me that you was not helping them. Please help me!! 5/4x +1/8x=11/8 +x The solution is x= Solve by the elimination method. 4x +5y=5 8x +10y=10 What is the solution of the system.

*asked on April 7, 2009* -
## Algebra

Find the y-intercept and the x-intercept for the equation. -6x+y=22 What is the y-intercept. Type an ordered pair. y is (0,3) What is the x-intercept, Type an ordered pair. x is (0,0) Could check this problem to see if right.

*asked on March 6, 2009* -
## 3rd grade

Have to create a diary entry using the same characteristics from the song, "diary" by David Gates? Not sure how to approach. Please help. Thank you

*asked on February 25, 2009* -
## 3rd grade-math

When counting blocks and they ask for standard form, what do they mean? What is standard form?

*asked on January 31, 2009* -
## 3rd grade music

In the song, "Just My Imagination" by the Temptations, what is the main idea? Supporting details?

*asked on November 23, 2008* -
## Project Management

. What tools and techniques are or could be utilized within your Company to identify project risks? What have been or would be the advantages? Risk is most often identified in delivery dates of material (and engineering services). A weekly review of all

*asked on November 14, 2006* -
## chem 30

When 7.5 g of ethane was completely burned, all the heat produced was used to heat 1.50 kg of water. If the temperature of water rose from 20EC to 80EC, the heat of combustion of ethane is

*asked on January 24, 2016* -
## alegebra

A turtle starts moving north at 4 feet per minute from a point P. Five minutes later, a snail starts moving south at 2 feet per minute from a point 50 feet due east of P. What is the distance (in feet) between the two animals five minutes after the snail

*asked on September 22, 2014* -
## Anatomy

A ________ are designed to alleviate friction that may be caused by accessory structures, like a tendon, during movement of a synovial joint.

*asked on October 3, 2013* -
## sentence@spelling

which one of the following fragment is a prepositional phrase going to cliveland. listeningto her heart. cmopleted her assigment. during the darkest. night.

*asked on July 23, 2013* -
## Calculus

Integrate [1/square root of(e^(2x)-1)]. I have to use u substitution. We are doing the integrals of inverse trig functions, but I cannot get it to work out!

*asked on February 5, 2012* -
## logic

I need help proving these arguments using rules of inference, please. (S>B) > (SvK) (Kv~D) ~ (H>S) ~S.W / ~H ~A > (B>~C) ~D > (~C >A) D v ~A ~D

*asked on May 18, 2011* -
## COM/155

When writing a paragraph, it is important that the topic sentence and supporting points within that paragraph be directly related. What would be the reaction of a reader if the topic sentences in an essay did not coincide with the supporting points?

*asked on May 1, 2011* -
## chemistry

a catalytic converter combines 2.25 g CO with excess O2 What mass of Co2 is formed

*asked on February 24, 2011* -
## 5th grade

My daughter is taking OLSAT test for gift & talented middle school. All practice questions I find are for Kindergarten or 1st grade. Any ideas on how she should prepare? Thank you.

*asked on November 14, 2010* -
## Ks\aplan

How has terrorism impacted the police mission in the U.S.? What disagreements exist regarding the appropriate law enforcement behavior which fights terrorism but maintains personal liberties?

*asked on August 8, 2010* -
## algebra

-3square root 18 over-6= -1 Radical and Rational exponent check this for me please see if it right.

*asked on May 25, 2010* -
## math

I am not sure how to solve this problem. If your paper takes up 1/2 of the space in a landfill and plastic takes up 1/10 of the space, how much of the landfill is used for other materials?

*asked on May 19, 2010* -
## BIOCHEMISTRY

WHAT CONCENTRATION OF SOLUTION DO YOU GET IF YOU DISSOLVE 45G OF GLUCOSE (MOLECULAR WEIGHT =180) IN 500ML OF WATER?

*asked on March 10, 2010* -
## algebra

What percent of 320 is 180

*asked on December 22, 2009* -
## Critical Thinking

How would you re-write the following email so that it follow the critical thinking rules? I don’t have a lot of time to explain but off the top of my head answer is as a reader critical thinking affects me all ways. Not just reading but writing too.

*asked on September 10, 2009* -
## Algebra

Find the slope, if its exists y= -7x + 3 y=-7x+3 y=-4 Is this right help me

*asked on March 5, 2009* -
## Algebra

Solve y-5>-14 y=5>-9 Is this right if not will you help by corrected this. Thank you

*asked on March 5, 2009* -
## 3rd grade social studies

Interpret proverb-"A book is like a garden carried in the pocket." Does it mean, that a book is full of nice, pretty things like in a garden?

*asked on February 9, 2009* -
## 3rd grade music

"I Am a Rock" by Paul Simon, how is the character feeling i the song? Why does he describe himself as "I am a rock, I am an island"?

*asked on November 27, 2008* -
## 3rd grade-music

The song "Minnie the Moocher" by Cab Halloway-retell what the story is about. Use details in song to support your thinking.

*asked on November 1, 2008* -
## 3rd grade, Social Studies.

Explain how you are a consumer, what goods and services do you use?

*asked on October 20, 2008* -
## math-3rd grade

Write the +/- family for:500, 1100, 1600. What do i do? 1100+500=1600 500+1100=1600 1600-1100=500 1600-500=1100 Is that correct? Please help.Thank you.

*asked on October 15, 2008* -
## Math

The lengths of two sides of a triangle are 15 inches each. The third side measures 10 inches. What type of triangle is this? Explain your answer using geometric terms.

*asked on April 17, 2018* -
## diameter

The famous rotunda of the Capital Bldg has a floor that is 96 feet in diameter. A marble restoration company charges $40 per sq. yard for its services. How much would it cost to restore the entire floor in the rotunda? My answer 96 feet in diameter C=πd

*asked on May 1, 2016* -
## Geometry

A football player completed a 45 yard pass. How many inches is that? How many centimeters? I performed the dimensional analysis 45 yds * 36 in over 1yd final step was 1620 in * 2.54 cm =4114.80 cm

*asked on April 30, 2016* -
## Physics 30

A. Calculate the net force on q2? b. calculate the net force on q3? q1= +2.0 MC q2=+3.0 MC q3=+6.0 MC q1-----30cm-----q2-----------45cm----------q3

*asked on February 6, 2016* -
## Dynamics

The acceleration of a particle which moves along the x axis is given by a=4x+5x^(3/2) The particle has speed of 2m/s when x=1m x is in meters a is in m/s^2 evaluate the velocity when x = 8m I know that I need to use kinematic eqn 3 adr = vdv then take the

*asked on January 12, 2015* -
## Math

explain base 10

*asked on December 8, 2014* -
## psycholocy

Professor Stone follows patterns as they relate to human habitats, development, and behaviors. She is _____________.

*asked on August 11, 2014* -
## Anatomy

The ______ ______ (two words), a syndesmosis, which provides a pivot point where two parallel-aligned bones, like the tibia and fibula, can move against each other.

*asked on October 3, 2013* -
## Anatomy

Orthodontic braces can be painful, this is due in part to placing mechanical stress on the ____________ (joint type), causing ___________ of the alveolar sockets of the mandible/maxilla as the teeth are slowly repositioned.

*asked on October 3, 2013* -
## Chemistry

Cow's milk contains 32g of protein in 1052g of milk. What is mass/mass percent concentration of protein in the milk?

*asked on February 7, 2013* -
## Chemistry

What is the mass of lithium chloride in 27.8g of a 4.85% (m/m) LiCl solution?

*asked on February 7, 2013* -
## case management

Identify the differences and similarities of case management in the community setting and in the managed care environment?

*asked on September 9, 2012* -
## Confidentiality of Health Information

IN REGARD TO ELECTRONIC MEDICAL RECORDS (EMRS) WHAT IS THE POLICY FOR DISCLOSING AUTHORIZED DATA REQUESTED BY THIRD PARTIES?

*asked on July 14, 2011*

## Pages

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