
science
25.) Explain the following: (a)Water exists as liquid while H2S exist as a gas (b)HF has higher boiling point than HCl (c)Ice has less density than water (d)Metals have bright luster
asked by Vineeth on September 7, 2011 
3rd gradelanguage
Your speed will increase with each day's practice. future tense Because of snow and ice on the runway, our departure will be several hours late. present tense Could someone tell me if these two answers are correct to the sentences?
asked by Ashlee on April 2, 2009 
Chemistry
A 6.08g peice of solid CO2 (dry ice) is allowed to vaporize (change to CO2g) in a balloon. The final volume of the balloon is 1.00 L at 300k. What is the pressure of the gas?
asked by Kristian on December 5, 2011 
Physics
While curling, you push a rock for 1.70 m and release it when it has a speed of 1.70 m/s. It continues to slide at constant speed for 0.700 s and then hits a rough patch of ice. It finally comes to rest 9.20 m from where it was released.
asked by Jenny on September 21, 2016 
Chemistry
Four ice cubes at exactly 0 Celsius having a total mass of 55.0g are combined with 120g of water at 77 Celsius in an insulated container. If no heat is lost to the surroundings, what will be the final temperature of the mixture?
asked by Ben on September 10, 2012 
What is the Final Temperature?
Four ice cubes at exactly 0 degrees C having a total mass of 53.0 g are combined with 120 g of water at 77 degrees C in an insulated container. If no heat is lost to the surroundings, what will be the final temperature of the mixture?
asked by Amy on January 6, 2013 
Chemistry
What is the total energy transfer(in KJ) when 10.00 pounds of water vapor at 110 degrees C becomes ice at 253K? Assume that the specific gravity of water = 1.00. The answer I got was around 12,000 KJ. Is this correct?
asked by Tyler on April 30, 2011 
algebra
A cellular phone company offers a contract for which the cost C, in dollars, of t minutes of telephoning? is given by C=0.25(t600)+ 79.95, where it is assumed that t>=600 minutes. What times will keep costs between $119.45 and $162.70? For the costs to be
asked by jeanette on September 27, 2009 
MATHS
A and B take 18 days to complete a work. A left the work after 10 days and B takes 12 days more to complete the work. In how many days can A complete the whole work?
asked by clive on December 31, 2015 
physics
1 The principle of conservation of heat energy states that that when an object is at constant temperature or is in thermal equilibrium, it is losing and gaining heat at equal rates. the heat lost by a hot body is equal to the heat gained by the cold body
asked by promise on April 12, 2015 
PHY 113
1 The principle of conservation of heat energy states that that when an object is at constant temperature or is in thermal equilibrium, it is losing and gaining heat at equal rates. the heat lost by a hot body is equal to the heat gained by the cold body
asked by Austin on April 13, 2015 
phy111
1 The principle of conservation of heat energy states that that when an object is at constant temperature or is in thermal equilibrium, it is losing and gaining heat at equal rates. the heat lost by a hot body is equal to the heat gained by the cold body
asked by tk on April 5, 2015 
physics
2. You push a 2.0 Kg block against a horizontal spring (the spring constant is k=200 N/m) compressing it by 15 cm. Then you release the block and the spring sends it sliding across a tabletop. The block stops 75 cm from where you released it. (a) Find the
asked by Anonymous on December 1, 2014 
College Algebra/precalculus
The question is to evaluate each logarithm: My professor wants us to show work. Could you please tell me if I'm on the right track? Thank you!!! 1. log6^(1/36)= 2 2. ln(1/e^4)= 1/e^2 3. log7^1= 0 4. log4^64= ln64/ln4= 3 5. log10^8= ln8/ln10= .9031 6.
asked by Need Help on April 29, 2016 
American Government
What is each of the following responsible for? Local government, State government, Federal government
asked by Sadie on August 23, 2008 
chemistry
sorry the first one didn't post properly Lab: Electrolytic Cells The purpose of this experiment is to test the method of stoichiometry in cells. Materials: balance steel can tin electrode power source wire lead (x2) tin (II) chloride solution (3.25 M)
asked by anna on April 15, 2008 
Physics
In Figure 1020, the magnitude of the force necessary to stretch a spring is plotted against the distance the spring is stretched. Figure 1020 (a) Calculate the slope of the graph, k, and show that F = kd, where k = 25 N/m. (b) Find the amount of work
asked by Claire on October 25, 2011 
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
asked by Frank on January 15, 2010 
drawls, math help
can you explain to me just one more thing so i can undestand it. Now i have an equation which is : 3x = 3x + 5 which I know has no solution to it, now whereas the equation 7x + 8 = 8 has zero as a solution. What is the difference between a solution of zero
asked by jasmine20 on January 3, 2007 
Physics urgent help needed
The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 2.5 105 Pa, and the horizontal divisions represent 1.0 103 m3. Determine the work done (including algebraic sign) in each segment
asked by Papito on April 25, 2007 
physics
a hockey puck is given the initial speed of 10 m/s. If the coefficient of kinetic friction between the ice and puck is 0.10, how far will the puck slide before stopping?
asked by ama on December 14, 2010 
algebra
A block of ice loses one third of its weight every hour. After 2 hours, the block weighs 40 pounds. How much did the block weigh to begin with?
asked by Joshua on January 4, 2011 
thermodynamics and static machenics
For thermocouple,the value of C1 and C2 are 40.0×10^6 v°/c and 0.01×10^6 v°/c^2 respectively.If the thermo emf between the junction is 2.3×10^2 v and the cold junction is kept at the ice point,calculate the temperature of the hot junction.
asked by gourav on March 22, 2015 
Physics
Calculate the force of gravity on a spacecraft 19200 km (3 earth radii) above the Earth's surface if its mass is 1600 kg. I've done all the work but I can't seem to get the right answer, please show work and answer.
asked by Kyle on October 28, 2010 
Physics
The work required to bend a steel beam with a spring constant of 10^6 n/m is 5 j. If it is treated like a perfect spring, what is the displacement of the beam? A. 3.2 mm b. .03 m C. 2.5m D. 0.026 m e. 0 Pls show work thank u!
asked by john on December 3, 2012 
9th Grade Math
For #14, write an equation of the line that passes through each pair of points. Show all of your work to receive full credits. 1.) (9, 2) and (4, 3) Answer: 9 = 1x + 2 2.) (3, 5) and (2, 2) Answer: 3 = 7x + 5 3.) (4, 3) and (2, 0) Answer: 4 = 2/3x + 3
asked by Sharpshooter on September 25, 2017 
statistics/mean and standard deviation
find the mean and standard deviation in the following probability distribution x 1 2 3 p(x) 0.2 0.6 0.2 *i think that the mean is 2 but am lost after that when it comes to the standard deviation. please show work and calculations. the more i work with
asked by mary please check calculations. on October 23, 2010 
math
Im having a problem understanding this problem so I cant solve it. Bruce knows how many key are on his keyboard, but some don't work. How does Bruce find the number of keys that work? write to explain
asked by craig on December 7, 2011 
sociology social work
What influences in your life draw you to work with older adults? What do you anticipate will be a rewarding aspect of this work? What might be a challenge? What do others you speak to say when you indicate that you are interested in working with older
asked by Alice on January 18, 2012 
Physics 221
A 20g particle is moving to the left at 30 m/s. How much net work must be done on the particle to cause it to move to the right at 30 m/s. The answer is 0J of work, and i understand the method of equations, but i don't understand the logic behind it.
asked by K on December 8, 2009 
Physics
A mixture of gasoline vapor and air is placed in an engine cylinder. The piston has an area of 7.4 x 10^3 m^2 and is displaced inward by 7.2 x 10^2 m. If 9.5 x 10^5 Pa of pressure is placed on the piston, how much work is done during this process? Is
asked by Edward on March 29, 2010 
Chemistry
the longest wavelength of light that will cause an electron to be emitted from a metal is 520nm. what is the work function for this metal? (note: the work function is given as kJ/mole of electrons released)
asked by Jen on February 22, 2016 
Physics
A 60 kg is pushed 12m across a horizontal floor by a horizontal force of 200N. The coefficient of kinetic friction is 0.3. How much work went into overcoming friction and how much work went into accelerating the box.
asked by Ali on October 12, 2015 
physics
A Carnot refrigerator is operating between thermal reservoirs with temperatures of 27.9°C and 0.0°C. a) How much work will need to be input to extract 13.7 J of heat from the colder reservoir? b) How much work will be needed if the colder reservoir is at
asked by maria on January 4, 2012 
PHYSICS Electricity
A carbon atom's nucleus and its electrons become separated by 20nm . How much work does it take to separate them in J?I found the magnitude of the force the nucleus feels from the electrons,2.07*10^11 N but the work? Could ex[lain me please?
asked by Maurice on February 19, 2015 
algebra
Twins Diana, and Riana are each 6 years older than their younger brother Kyle. Together, their three ages total 21 years. How old is kyle? Please show your work to help me understand how to work the problem
asked by Theresa on January 6, 2009 
Interview for Job
Tell me what you would do if you were on a team and another team member didn’t pull their weight. I would do my part, and wait for them to do theirs. A team has to work together, it should be all of the members of the team putting in their efforts in the
asked by Anonymous on January 28, 2011 
Physics
A constant force, F = (4.63, −3.79, 2.16) N, acts on an object of mass 17.7 kg, causing a displacement of that object by r = (4.10, 3.86, −2.45) m. What is the total work done by this force? Im pretty sure the work equals k(xxo) but im not really
asked by Anonymous on October 21, 2014 
Physics
How much work is done when a mass of 3 kg (weighing 30 N) is lifted vertically through 6 m?. A hiker climbs a hill 300 m high. If she has a mass of 50 kg calculate the work she does in lifting her body to the top of the hill.
asked by Rainzz on February 24, 2018 
math
How do I work out Logs on my calculator to do the sum Log6x=0 or Logx64=2. I have a sharp ELEL531WH Advanced D.A.L. What is x? This is how I work this one out on it, Log2^16=4 I do Log big number 16 /Log small number 2 = 4.
asked by jo on November 11, 2009 
Physics
Does centripetal force acting on an object in uniform circular motion do work on the object? For work, force must be in the direction of movement. Please stop posting under differing names.
asked by Rob on June 18, 2007 
Math
can you help me with the homework that I am doing right now that is math 4th grade work.Also I need the answers 16/36 We can help, but we wont provide answers. You have to work for them. bobpursley on Tuesday, January 16, 2007 at 7:12pm in response to
asked by Nakia Johnson on January 16, 2007 
Math
Simplify the expressions in each pair. (2 marks each) (Show your work) (x^22x)/(x+1)x (x^21)/(x^2+x6) My work on simplifying the expressions x(x2)/x+1 x (x+1)(x1)/(x+3)(x+2) If I've gone wrong please help me understand where I went wrong and help me
asked by Alex on January 10, 2015 
Math
Simplify the expressions in each pair. (2 marks each) (Show your work) (x^22x)/(x+1)x (x^21)/(x^2+x6) My work on simplifying the expressions x(x2)/x+1 x (x+1)(x1)/(x+3)(x+2) If I've gone wrong please help me understand where I went wrong and help me
asked by Alex on January 10, 2015 
literature
Can you please revise this for me? Tears: Easily coming, easily going. Effortless work for salty streams flowing. Might come when you're here, might come when you go. But tears are definitely good work's foe Does the last line make sense? thanks
asked by mysterychicken on October 26, 2008 
S.S
which form of government provides funding for maintaining the infrastructure for bridges and highway A. local government B. regional government C. state government D. federal government
asked by Anonymous on September 28, 2017 
Publish
Do publish your work (stories, art wk, etc.) will express colleges (ivy league). I'm partcipating some contests that involved publishing work (if one of the winners). Like Scholastic Arts and Writing, Schloastic Kids Are Authors, and National Children Book
asked by Lauren on December 29, 2011 
physics
A 71 kg skater and a 59 kg skater stand at rest on frictionless ice. They push off, and the 71 kg skater moves at 2.5 m/s in the + xdirection. What's the other's velocity?
asked by lizbeth on February 17, 2016 
physics
a hockey puck is sliding across frictionless ice at 6m/s. a)what is the net force on the puck? b)what forces act on the puck?
asked by lisa on May 2, 2012 
Chemistry
Identify the compound with the highest entropy. a. solid ice b. room temperature water c. gaseous water d. frozen water
asked by Adryan on December 6, 2011 
Introduction to physical science
I am not understanding this because I thought ice ruins the fruit. Could you please help. Why does spraying fruit trees with water before a frost help protect the fruit from freezing?
asked by Aundrea on August 11, 2013 
Chemistry
determine the final temp when 45.8 g of aluminum at 5.2 degrees C is added to a mixture of 45.0 grams of ice at 0.00 degrees C and 2000.0 g of water at 95.0 degrees C.
asked by Brittany on November 20, 2009 
chemistry
What equation will you use to calculate the heat of fusion of ice? The specific heat of water is 4.184 J/(gx°C), and the heat capacity of your calorimeter is 1.0x10^1 J/°C.
asked by Stephanie on October 1, 2013 
maths
At an ice hockey match 3/5 of the spectators were boys and 1/10 were girls. The remainder of the spectators were adults. Calculate the fraction of the spectators who were children?
asked by rebecca on February 20, 2011 
Physics
A hockey puck is given an initial speed of 6.7 m/s. If the coefficient of kinetic friction between the puck and the ice is 0.08, how far (in m) does the puck slide before coming to rest?
asked by Amir on May 1, 2017 
Chem please help
Which of the following would have the greatest entropy? A. Water placed in the refrigerator B. Water sitting out on the kitchen counter C. Water vapor D. An ice cube I think c what about you drbob222
asked by Morgan on November 23, 2014 
english
Imagine you are on a local commission appointed to study the lack of proper recreation facilities for youth in your neighborhood. Decide what facilities should be recommended. Write an appropriate resolution to be presented to your county government.
asked by jason on November 4, 2010 
world studies
Which is not a cause of air pollution? A.)burning of fossil fuels in manufacturing plants B.)industrial wastes dumped into rivers C.)burning of waste or trash by local governments D.)exhaust from cars, trucks, and oil tankers Help please I don´t
asked by kid on November 26, 2018 
Technical Communication
I have to rewrite a letter to a local newspaper. Original Text: your application for the advertised position has been forwarded to our personnel office. As the selection process moves forward, we will be in touch. Thank you for your interest. I have to
asked by Amy on October 19, 2015 
english
Imagine you are on a local commission appointed to study the lack of proper recreation facilities for youth in your neighborhood. Decide what facilities should be recommended. Write an appropriate resolution to be presented to your county government.
asked by Travis on October 26, 2009 
EnglishGrammar check
Can someone tell me if these 2 sentences are the correct use of a semi colon: Another example of prejudice displaying in Maycomb county is against Arthur Radly, the local everyone is afraid of; he is considered the town freak. One more example of prejudice
asked by Mike on April 6, 2009 
Public Administration / GOVT
This may seem like an easy question, but I am torn between two answers and would like some help. I am inclined to go with D. as my answer, but also feel like A. might also be correct. The greatsest number of elected officials responsible for the machinery
asked by Keith on November 26, 2007 
MathAlgebra 1
Part 1: When writing linear equations, how do you determine which form of a line to use? Part 2: Choose 1 set of points from the choices below. Then, solve the problem and post your solution, showing your steps. Write an equation in pointslope form for
asked by Gabby on November 23, 2013 
Math
Mrs.Perry hires a landscaper that charges $15 per hr. The landscaper says the total charge for the work done is $120.00 Write an inequality to show h, the number of hours it took to do the work and solve the inequality.
asked by Amy on March 16, 2016 
Math PLEASE HELP!!!!!!!!!!!!!!!
A biker traveling at his usual speed can go from his house to work in 4 hours. When the weather is bad, he travels 6 miles per hour slower, and it takes him half an hour more. How far is his work from his house?
asked by Katniss Everdeen on April 15, 2017 
physics
A persn carries a 218N suitcse up a stairs.the displcment is 4.20m vertically & 4.60m horizntally. A.hw much work does the person do on the suitcase B. If the prsn carries the same suitcse dwn.hw much work does he do
asked by Luc on August 15, 2011 
Calculus 1
Use Newton's method with initial approximation x1 = −2 to find x2, the second approximation to the root of the equation x^3 + x + 1 = 0. *I got 1.307692 for my answer but it said that was wrong, so then I tried rounding it to two decimal places and got
asked by TayB on November 12, 2015 
Physics
Which motor performs more work in the same amount of time a 10 kW or a 20 kW motor? Explain your reasoning. Power masures work per unit time and kW is a way of measuring it. That should make the correct answer obvious.
asked by Anonymous on December 10, 2006 
eng 122
The modification of text with the intent of changing phrases, changing words, or interspacing the student's work into the plagiarized work is plagiarism. (Points : 1) True False answer true
asked by madam on August 29, 2016 
Math(analytic geometry)
I'm studying analytic geometry and i came accross this question;"find the tangents common to x²+ y²=8 and y²=16x.How am i going to work it out,please? I tried to work out their gradients which gave me x²+y²=8 2x+2ydy/dx=0 dy/dx=2x/2y =x/y y²=16
asked by Shyla on December 4, 2015 
Algebra
Write the equation of the line L satisfying the given geometric conditions. L has yintercept (0,2) and is perpendicular to the line with equation 2x3y=6 Show work I will be happy to critique your work on this. 3x+2y=4?
asked by Linda on May 20, 2007 
MATH PLEASE SHOW WORK
Three consecutive odd intergers are such that the sum of the squares of the first two integers is 54 more than 20 times the third integer. Determine the three integers. Please help and show all work thank you SHOW WORK SO I UNDERSTAND HOW TO DO IT THANK
asked by Sarha on October 18, 2016 
Advance Math
Find solutions of the equation in the interval [0, 2pie} Cos(x+pie/3)+Cos(xpie/3)=1 I need to show work without calculator and be able to check in order for it to work Thanks for help
asked by Mike on May 24, 2010 
Math
Mr Connors drives his car 11 miles each day to and from work. Is this distance mr Connors drives commuting to work proportional to the number of days he works ? How do you know?
asked by Niko on February 5, 2014 
english
select the antecedent of the pronoun in the following sentence. The strikers will return to work when the union representatives have completed their negotiations. A. negotiation B. representatives C. work D. strikers
asked by sharon on March 6, 2015 
physics
A net force of 1000 N is needed to accelerate a small 1200 kg car from 5 m/s to 8 m/s. Use the workenergy theorem to determine the net work done by the force.
asked by saeed on May 16, 2015 
Physics
There are two ways to find how much work is done voercoming friction. One method entails knowing the force overcoming friction. What other calculation could be done to find this wasted work?
asked by Hayley on December 16, 2007 
informal logic
Since Jessica’s participation in local politics increased significantly after she joined her school’s political science club, it is clear that her involvement in that club led her to take an interest in politics. The argument above is flawed because
asked by ray on August 9, 2011 
Science
Of the three local winds, which do you think could be easily harnessed for the generation of electricity by a huge wind farm and why? Land and Sea Breezes,Mountain and Valley Breezes or Chinook and Santa Ana Winds.
asked by Niki on June 15, 2011 
social studies
while in sandiego the pittsgurgh could travel just a little south to visit the famous peninsula of what in the country of mexico? Anonymous... check your local Atlas... what peninsula is directly south of San Diego, California.
asked by Anonymous on October 2, 2006 
Business Math
A local Barnes and Noble paid a $79.33 net price for each calculus textbook. The publisher offered a 10% trade discount. What was the publisher’s list price? (Round your answer to the nearest cent.)
asked by Mandy on February 27, 2014 
Math Help
The sale price of shrimp at a local grocery store is $1.15 for the first ounce and $0.95 for each additional ounce. Which function rule shows how the cost of shrimp, y, depends on the number of ounces, x? A.y=1.15x+0.95** B.y=(0.95+1.15)x C.y=0.95x+1.15
asked by The Weekend on May 16, 2017 
statistics
The average middledistance runner at a local high school runs the mile in 4.5 minutes, with a standard deviation of 0.3 minute. Find the percentage of a runners that will run the mile in less than 4 minutes?
asked by dw on March 5, 2012 
Philosophy
Since Jessica’s participation in local politics increased significantly after she joined her school’s political science club, it is clear that her involvement in that club led her to take an interest in politics. The argument above is flawed because
asked by John on May 12, 2013 
Applications
I'm applying to the local Chamber of Commerce for a scholarship open to high school juniors to become ambassadors for our town, and it says that a cover letter and job resume are required. What should a cover letter be in this situation?
asked by Katie on April 16, 2009 
computer science java
write a program in java for a grocery (fruit shop calculate the prize of bananas @ $.89/kg declaring the the prices of all either as instances or class variables.declare the weight of the fruit as local variables
asked by makagona makamachi on October 2, 2016 
Economics
A local video store estimates their average customer's demand per year is Q = 7  2P, and knows the marginal cost of each rental is $0.5. How much should the store charge for each rental if it engages in optimal twopart pricing? Answer A. $0.35 B. $0.5.
asked by Ronald on March 20, 2012 
Confidetiality of Health information
please check my answer thanks :) True or Flase You are allowed give access to someone if they need a patients records for a research project. I said True I have seen in my local hospital nursing students taking a look at a pt chart for research
asked by Anonymous on June 7, 2008 
sir damon steve damon damon help maths
Record, indicate that t hours past midnight, the temperature at the local airport was T(t)=0.3t^2+4t+10degree celcius. What was average temperature in farenheit at airport between 9am and noon? Plz damon show step
asked by weryiyemi on March 15, 2017 
Critical thinking
Since Jessica’s participation in local politics increased significantly after she joined her school’s political science club, it is clear that her involvement in that club led her to take an interest in politics. The argument above is flawed because
asked by Priscillia on September 10, 2014 
English (phrasal modals)
Zach used to work at an independent record label. Negotiating could be exciting, but he was supposed to slant everything in the label’s favor. Some reps used questionable tactics. He couldn’t look at himself in the mirror if he treated people like
asked by Claire on November 19, 2013 
English
Zach used to work at an independent record label. Negotiating could be exciting, but he was supposed to slant everything in the label’s favor. Some reps used questionable tactics. He couldn’t look at himself in the mirror if he treated people like
asked by Tim on November 18, 2013 
math 156
june wants to work for 15 1/2 hours at her parttime job this week. she has already worked 8 3/4 hours. how many more hours does she need to work?
asked by Anonymous on February 18, 2011 
Life orientation
Two example of social issue. Identify a social issue in your local community and describe it shortly .
asked by Emely on August 1, 2013 
physics
Will check my work and help me with the last two problems please? A 4 kg ball has a momentum of 12 kg m/s. What is the ball's speed? (12 kg/m/s) / 4kg=3m/s A ball is moving at 4 m/s and has a momentum of 48 kg m/s. What is the ball's mass? (48kg/m/s) /
asked by Soly on October 15, 2007 
Physics Problems
Will check my work and help me with the last two problems please? A 4 kg ball has a momentum of 12 kg m/s. What is the ball's speed? (12 kg/m/s) / 4kg=3m/s A ball is moving at 4 m/s and has a momentum of 48 kg m/s. What is the ball's mass? (48kg/m/s) /
asked by Soly on October 13, 2007 
Physics
Will you check my work and help me with the last two problems please? A 4 kg ball has a momentum of 12 kg m/s. What is the ball's speed? (12 kg/m/s) / 4kg=3m/s A ball is moving at 4 m/s and has a momentum of 48 kg m/s. What is the ball's mass? (48kg/m/s)
asked by Soly on October 14, 2007 
Chemistry
are these items belowed classified as a heterogeneous mixture, a solution, a compound or and element? chalk clear spring water oxygen tomato soup pencil ice and soda sterling silver iron
asked by Courtney on September 28, 2010 
Chemistry
A 156.5 g piece of stainless steel was heated to 510 C and quickly added to 25.11 g of ice at 30 C in a wellinsulated flask that was immediately sealed. What will be the final temperature of the system if there is no loss of energy to the surroundings?
asked by Jerry on October 26, 2008 
Human Services
Creating a Budget Various budget approaches play an important role in resource allocation in human service organizations. You are the executive director for a local government workforce agency that focuses on providing career and workrelated skills. The
asked by Angel on February 1, 2012