
phyics
during a process, 21.6 MJ of heat is added to closed system. if the internal energy is increased by 59.6 MJ, how much work in Btu was done? is the work done on ro by the system?
asked by mikel on May 5, 2012 
physics
during a process, 21.6 MJ of heat is added to closed system. if the internal energy is increased by 59.6 MJ, how much work in Btu was done? is the work done on ro by the system?
asked by john on May 5, 2012 
Math
Problem Page Ali made $255 for 17 hours of work. At the same rate, how many hours would he have to work to make $105 ?
asked by Capri on September 27, 2016 
The Equation of Time
The reason for this post is I think I understand it and am seeking reassurance. I am just starting to study celestial navigation and am trying to get to grips with some of the fundamentals. I need to use the Equation of Time of the Sun to establish
asked by Mike on October 31, 2006 
Language Arts
Paragraph 4: Into this environment stepped a very determined woman. Frances Gabe hated housework. She said, "Housework is a thankless, unending job, a nervetangling bore. Who wants it? Nobody! With my jaw set hard, I was determined there had to be a
asked by Anonymous on October 14, 2014 
physics
I calculated parts a, b, c, but cannot figure out d. I tried combining all the forces and adding them but I am missing something? There is an 18 kg box on a 32degree incline. a HORIZONTAL force of 150 N is given to the box a) How much work is done by the
asked by Aileen on November 7, 2010 
Physics
A steamelectric power plant delivers 900 MW of electric power. The surplus heat is exhausted into a river with a flow of 2.91×105 kg/s, causing a change in temperature of 1.07 oC. A. What is the efficiency of the power plant? B. What is the rate of the
asked by Abbey on April 6, 2016 
tax income
A taxpayer can exclude from income interest received from: A. a savings account established at a local bank. B. a credit union. C. a sellerfinanced mortgage transaction. D. municipal bonds issued by the state. is it D
asked by Billy on March 2, 2012 
Geometry
You wanna adopt a puppy from your local animal shelter. First, you plan to build an outdoor play pen along the side of your house, as shown below. If a dog grass cost $1.70 a square foot, how much will you spend A) $23.80 B) $30.60**** C) $35.70 D) $40.80
asked by Ava on September 26, 2017 
english 11
What surprising action does Locust take at the end of the story? (1 point)He scratches on the eight ball. He shows up at the Lemon Tree Billiards House.*** He turns himself in to the local authorities. He sets Mitch up with his daughter. help? not sure if
asked by brandon on December 8, 2012 
Cultural Anthropology 101
Typical characteristics of Band societies include dependence on outside populations to acquire resources. (****) exploitation of local plants and animals. development of permanent settlements. accumulation of material wealth. my answer(****)
asked by Anonymous on December 8, 2012 
marketing
To increase interest in rodeos, the local chapter of the National Rodeo Cowboys Association (NRCA) is offering free roping lessons to students in the sixth and seventh grades. An exchange will take place because:
asked by stefani on October 16, 2011 
English
Which of the following contains a noun clause? A. Louis did not know Jocie could not swim. B. Since last August we have not seen a drop of rain.
asked by Rena on November 15, 2016 
english
on which line is there a spelling mistake. 1/ reported to the HSE or local authority immediately. A major injury is 2/ construction industry. About one hundred and forty are fatal. This is 3/ hospital treatment lasting more than twentyfour hours.
asked by Marc on December 9, 2008 
criminal justice
Prevention of catastrophic terrorism is most dependent on a unity of efforts between the federal government and A. the American Red Cross. B. local and state level agencies. C. the U.S. Armed Forces. D. private security services.
asked by a.c on February 5, 2014 
Business Marketing
34 pages Details: A senior federal agent is assigned as the division training officer responsible for providing/coordinating inservice training for the agents in the division along with the local police officers assigned to work on a federal task force.
asked by Shakaa' on November 29, 2008 
Social Studies And Business
Since no one answered and I NEED IT ASAP 1. Customers cannot purchase every product. How does this fact affect companies that make products? A: They increase costs to make up for low sales. B: They decrease quality to make up for low sales. C: They provide
asked by Reeses on April 11, 2017 
Law Studies
Hi, I need help with finding a federal law relating to this case I got for my final project. I have to pretend why or why not I'm not going to take her case and give reasons but I really need help finding the federal law that relates to this. Here it is:
asked by Anonymous on December 20, 2018 
math
Jennifer runs a restaurant that offers a children's menu. This past week, 24 children ate at her restaurant, and 8 of them ordered macaroni and cheese. What is the experimental probability that the next child to eat in Jennifer's restaurant will order
asked by Anonymous on March 7, 2016 
Physics repost please check
Good morning. This is a repost. The system is telling me my calculations is incorrect. I thought a fresh pair of eyes would help. Please tell me what I am doing wrong. Suppose a monatomic ideal gas is contained within a vertical cylinder that is fitted
asked by Mary on April 20, 2007 
Calculus (Urgent Help)
Okay, I need major help! Can someone tell me if these statements are true or false ASAP please. Thank you. 1. If ƒ′(x) < 0 when x < c then ƒ(x) is decreasing when x < c. True 2. The function ƒ(x) = x^3 – 3x + 2 is increasing on the interval 1 < x <
asked by Veronica on July 25, 2008 
ELA
Help me understand This question asks you about your work in your reading character role. You may use your novel to help you answer the question. Think about the work you completed in your reading character role. Determine the ideas that would be most
asked by Naegirl on December 8, 2016 
Economics
A New Hampshire resort offers yearround activities: in winter, skiing and other coldweather activities; and in summer, golf, tennis, and hiking. The resorts operating costs are essentially the same in winter and summer. Management charges higher nightly
asked by Joe on May 16, 2010 
Business
A New Hampshire resort offers yearround activities: in winter, skiing and other coldweather activities; and in summer, golf, tennis, and hiking. The resorts operating costs are essentially the same in winter and summer. Management charges higher nightly
asked by Ariana on May 17, 2010 
physics
calculate the amount of work it takes to increase a cars speed from 10mph to 30 mph and from 50mph to 60mph. Is more work required for 10mph to 30mph?
asked by sam on August 6, 2014 
math
Mr Ahmad starts work at 11.40 on Tuesday.He works for 12h45min.When does Mr Ahmad finish his work?Express your answer usering the 24hour clock Math
asked by Mazhar on June 10, 2017 
science
It takes 3.38 J of work to stretch a Hooke’slaw spring 5.63 cm from its unstressed length. How much the extra work is required to stretch it an additional 4.22 cm? Answer in units of J
asked by jason on November 16, 2012 
Algebra 2 help
1. (3ã6 * 4ã6)^12 Answer :6^7 2. 3ã9 * 3ã6 / 6ã2 * 6ã4 Answer: 3 Can you guys show me how to work those? I got the answers from back of the book, but I have no idea how to work it. The number behind the square root sign is the nth.
asked by Chopsticks on January 25, 2009 
calculus
1) Integrate (e^x+x)^2(e^x+1) dx 2) Integrate xe^x2 dx Let u=(e^x+x) du=(e^x +1) dx I will be happy to critique your work or thinking. You are posting work for me to do, and I am not inclined to do that, it will not help you for me to do it. I think I gave
asked by Febby on April 13, 2007 
Finding Job
Gradually retiring by working fewer hours: Phaed retirement Work Sharing leave time shift work would it be phased retirement
asked by Anonymous on January 10, 2011 
Ethics and social responsibility
You work hard in your office overtime weekends and early mornings.you get paid well but despise that your coworkers are getting paid the same pay for less work then what you are doing and get promoted ahead of you.
asked by Judy on May 9, 2013 
Calc
the productivity of a person at work is modeled by a cosine function: 5cos (pie/2 (t)) +5, where t is in hours. If the person starts work at t=0, being 8:00 am, at what times is the worker the least productive?
asked by Anonymous on July 20, 2016 
science
how do you calculate the missing variable in work and power;example:you must exert a force of 4.5N on a book to slide it across a table .if you do 2.7J of work in the process,how far haveyou moved the book
asked by jimmy on August 28, 2014 
Anthropology
What do you think are the relative contributions of individual ideas and actions and the sociocultural context in which individuals live to the conditions depicted in Bourgois’ “Office Work and the Crack Alternative”? How would you compare individual
asked by Ron on June 25, 2007 
English
1. Which idea is central to a literary analysis? A. the number of images in the work B. the order of the images in the work C. how the imagery relates to the work as a whole D. Imagery is not central to a literary analysis I think it's C? 2. Which should
asked by anthony on May 16, 2011 
Probability
An advisor offers 8 mutual funds in the high risk category, 7 moderate, 10 in low risk. The investor decides to invest in 3 high risk, 4 moderate risk, and 10 low risk. How many ways can he do this?
asked by Betty on February 9, 2013 
Math
An advisor offers 8 mutual funds in the high risk category, 7 moderate, 10 in low risk. The investor decides to invest in 3 high risk, 4 moderate risk, and 10 low risk. How many ways can he do this?
asked by Betty on February 8, 2013 
Statistics
An advisor offers 8 mutual funds in the high risk category, 7 moderate, 10 in low risk. The investor decides to invest in 3 high risk, 4 moderate risk, and 10 low risk. How many ways can he do this?
asked by Betty on February 9, 2013 
MathStatistics
An advisor offers 8 mutual funds in the high risk category, 7 moderate, 10 in low risk. The investor decides to invest in 3 high risk, 4 moderate risk, and 10 low risk. How many ways can he do this?
asked by Betty on February 10, 2013 
English
1. I would rather die than surrender. 2. I would rather fail than cheat. 3. I would rather play games than study. 4. I would rather walk to work than go to work by car.  Are they all grammatical? Do we have to use the base
asked by rfvv on December 15, 2016 
science
a.boiling water b.melting a cube of ice c.dissolving 10 grams of salt in water d.splitting water into hydrogen and oxygen my answer: c a.boiling water b.melting a cube of ice c.dissolving 10 grams of salt in water d.splitting water into hydrogen and oxygen
asked by help!!!! on January 7, 2019 
Physics
A mass m1 = 4.1 kg rests on a frictionless table and connected by a massless string to another mass m2 = 5.9 kg. A force of magnitude F = 32.0 N pulls m1 to the left a distance d = 0.83 m. 1) How much work is done by the force F on the two block system? 2)
asked by Drew on January 2, 2013 
physics
A 5.20 package slides 1.57 down a long ramp that is inclined at 13.0 below the horizontal. The coefficient of kinetic friction between the package and the ramp is = 0.305 Calculate the work done on the package by friction. Calculate the work done on the
asked by Matt on October 5, 2012 
physics
A 5.20 package slides 1.57 down a long ramp that is inclined at 13.0 below the horizontal. The coefficient of kinetic friction between the package and the ramp is = 0.305 Calculate the work done on the package by friction. Calculate the work done on the
asked by Matt on October 4, 2012 
Physics
A mechanical device requires 420 J of work to do 230 J of work in lifting a crate. What is the efficiency of the device? I keep getting 0.5% am I right?
asked by Anonymous on March 4, 2015 
physics
what is the efficiency of a pulley that requires a worker to do 250 J of work to lift an object that requires 170 J of work
asked by joe on October 27, 2010 
Math
What is 50x50 and why pls show work (don't show adult work I'm in 6 grade I'm not going to understand lol)
asked by Vanessa on August 29, 2016 
Physics
What force does work on a ball rotating down an inclined plane? Explain why the other forces the ball experiences do not do work.
asked by Joe on November 29, 2010 
chemistry please help
how do you know if a hydrolytic work up is required for reactions with grignard reagents? What does hydrolytic work up mean is it treatment with aqueous acid
asked by molly on November 2, 2009 
Math
Limit = x>infinity 11x^5+4x^36x+2/6x^3+5x^2+3x1 My work: After doing lots of work I got 11/x^2 +4 6/x^2 +2/x^3 All over 6+5/x+3/x^21/x^3 So then I get 4/6 but the correct answer is supposed to be infinity.. I'm very confused
asked by Maya on February 16, 2016 
math,correction
simplify: 7sqrt(7x) + 5 sqrt (7x) My work: (7+5)sqrt (7x) My answer: 12sqrt (7x) is this correct? It looks fine. Good work. Thanks for asking.
asked by jasmine20 on April 19, 2007 
College Physics
It takes 164 kJ of work to accelerate a car from 23.7 m/s to 27.8 m/s. What is the car's mass? I tried using this equation but it didn't work KE = 1/2mv^2
asked by Anonymous on March 12, 2012 
Math
4t+14=6t/5+7 Please help me work out this problem and show your work
asked by Patty on February 16, 2012 
Maths
What is the intergral of: 2x/[(x+1)^3] dx Can someone show me how to work to work it out please? Thanks!!
asked by Claire on November 4, 2009 
physic
how is the time for which work a machine and it does a work? t=? A=9.3*10^4J P=1.3*10^4W
asked by gdbtv on January 19, 2011 
Calculus
Your firm offers to deliver 250 tables to a dealer, at $160 per table, and to reduce the price per table on the entire order by 50 cents for each additional table over 250. Find the dollar total involved in the largest possible transaction between the
asked by Jose on November 3, 2014 
Math
A video rental company offers a plan that includes a membership fee of $6 and charges $2 for every DVD borrowed. They also offer a second plan, that costs $48 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans
asked by Anonymous on May 21, 2014 
algebra
A video rental company offers a plan that includes a membership fee of $6 and charges $2 for every DVD borrowed. They also offer a second plan, that costs $48 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans
asked by Anonymous on May 21, 2014 
math
A video rental company offers a plan that includes a membership fee of $8 and charges $2 for every DVD borrowed. They also offer a second plan, that costs $14 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans
asked by ethan on April 23, 2015 
econ
Suppose an individual has 60 hours of time available in the week and has to decide how much to work. The hourly wage is $ 10 and he has $ 50 per week from a government subsidy. 1. (15 points) Draw an equilibrium where the individual choose to work 50 hours
asked by tofu on January 31, 2007 
MATH
Epicure Market prepares fresh gourmet entrees each day. On Wednesday, 80 baked chick dinners were made at a cost of $3.50 each. A 10% spoilage rate is anticipated. Question 1: At what price should the dinner be sold to achieve 60% markup based on selling
asked by Anonymous on February 16, 2014 
Chemistry
Heat is applied to an ice cube in a closed container until only steam is present. Draw a representation of this process. What happens to the size of the molecules and total mass of the sample?
asked by Person on July 6, 2015 
physics
Suppose partial melting of the polar ice caps increases the moment of inertia of the Earth from 0.331MR^2 to 0.332MR^2. What is the change in length of day in seconds?
asked by nikki on March 17, 2011 
Science
A meteorite is DIFFERENT from a comet mainly because has a tail of ice and dust enters the earth's atmosphere*** has a nucleus made of snow and rock is found in the orbit between Mars and Jupiter
asked by Haley on May 16, 2017 
physics
The heat of vaporization of ethyl alcohol is about 200 cal/g.If 2.4 kg of this fluid were allowed to vaporize in a refrigerator, find what mass of ice would be formed from 0 degree C water.
asked by Jim on April 3, 2012 
Maths
Rajesh gets Rs 240 per month. He spends onethird of it on ice creams ,onehalf on comic books and the remaining on wafers . Find the ratio of the money spent on each item
asked by Anonymous on July 30, 2016 
chemistry
which of the following is not spontaneous process at 25 degrees celsius and 1 atm pressure? ice melting iron rusting salt dissolving steam condensing water boiling
asked by martina on April 30, 2012 
chemistry
which of the following will result in a chemical change?A.melting ice to obtain water B.evaporating alcohol into vapor.C.drying wood in ashed D.burning coal in a furnace
asked by norman on February 5, 2012 
Chemistry
Do you know how to set up the ICE? That's what you need to do. If you know but are confused, tell us what you don't understand about it. At 55 degrees celcius, the K for the reaction: 2NO2 (g) N2O4(g) is 1.15 Calculate the concentration of N2)4(g) present
asked by DrBob222 on May 15, 2007 
Art
Discuss a minimum of two reasons why Jackson Pollock's Convergence (p. 510, Figure 734), is a work of "fine art" as opposed to an arbitrary composition of paint. Imagine that you are a defense attorney for this work of art. Establish a very strong
asked by Alicia on November 10, 2007 
Algebra
The sale price of apples at a local grocery store is $1.35 for the first kind and $1.10 for each additional pound. Which function rule shows how the cost of apples,y, depends on the number of pounds, x?
asked by anonymous on June 7, 2018 
law
Attorneys’ membership in local and national bar associations is: (Points: 5) required to practice law. delayed for three years from the licensing date. compulsory. voluntary. is it "compulsory"
asked by tobby on October 12, 2011 
business math
lane french had a bad credit rating and went to a local cash center. he took out a $119 loan payable in five weeks at $129. what is the percent of interest paid on this loan?
asked by elijah on April 14, 2011 
history
As a result of the early women's movement, women began to a. own property and make wills b. join religious revivals c. vote in local elections d. graduate from college B...?
asked by Bella on February 21, 2009 
Business Statistics
Using the telephone numbers listed in your local directory as your population, randomly obtain 20 samples of size 3. From each telephone number identified as a source, take the fourth, fifth, and sixth digits.
asked by Anonymous on June 30, 2013 
Government
Which is the main source of money used to pay for public primary and secondary schools? A. state funding B. federal funding C. local taxes D. parents of students The answer is not A!
asked by Anonymous on April 3, 2012 
Ethiopia(AAU)
Find the asymptote, interval of monotonicity, critical points, the local extreme points, intervals of concavity and inflection point of the following functions. Sketch the graph of each. A) f(x)=x2ex B) f(x)=x2 +x2 C) f(x)= x2 6x (x+1)2
asked by Woinshet.A on February 26, 2014 
history
by the time NAWSA was formed in 1890, women could a. vote in local elections b. vote for President c. buy and sell property d. run for a national political office is it C?
asked by history on April 19, 2009 
math
There are nine customers waiting for their local SuperDuperMegaMart store to open on a big shopping day. In how many ways can the nine customers form a single line at the door? That is, how many different lines of nine people are possible?
asked by Karen on February 20, 2012 
business math
Lane French had a bad credit rating and went to a local cash center. He took out a $100.00 loan payable in two weeks at $105.50. What is the percent of interest paid on this loan?
asked by erica on July 31, 2014 
math
Lane French had a bad credit rating and went to a local cash center. He took out a $100.00 loan payable in two weeks at $106.00. What is the percent of interest paid on this loan?
asked by glen on September 28, 2014 
Physics
A 72.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is onequarter of a circle with a radius of 4.65 m. What speed (in m/s) does he need at the bottom assuming that the local acceleration due to gravity is 9.80
asked by Dan on October 27, 2011 
com130
Imagine you have been asked to communicate to several clients regarding a delay in the production of widgets your company produces. Your clients are both local and international. They have diverse backgrounds, technical experience, and understanding.
asked by misty on May 16, 2008 
English
"At Common Good we tried to stick to 8515, so 85 percent of the food we grow are distributed within the community, then 15 percent we sell to local restaurants and a mobile farmers' market that comes once a week," she said.  How
asked by rfvv on December 14, 2013 
Physics
A 72.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is onequarter of a circle with a radius of 4.65 m. What speed (in m/s) does he need at the bottom assuming that the local acceleration due to gravity is 9.80
asked by dan on November 2, 2011 
com130
Imagine you have been asked to communicate to several clients regarding a delay in the production of widgets your company produces. Your clients are both local and international. They have diverse backgrounds, technical experience, and understanding.
asked by estina on December 15, 2008 
Growing salt crystals
What kind of common salt compounds can be found at the local grocery or drug store to grow crystals? http://www.waynesthisandthat.com/crystals.htm#fast
asked by Ami on April 24, 2007 
early childhood education
To enrich children's learning and play experiences' you may borrow...... from your local public library. (a)videocassette recorders (b)slide projectors (c)videocassette tapes (d)toys i cant figure out this at all can you please help me
asked by semone on June 22, 2011 
Physics helppp
A 67.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is onequarter of a circle with a radius of 2.55 m. What speed (in m/s) does he need at the bottom assuming that the local acceleration due to gravity is 9.80
asked by Me on November 2, 2011 
central academy
rupesh completes a work in 3 days and sakshi completes it in 1 day only ..if they both complete the work in 15 days then how many days rupesh took in completing the work ??
asked by rakesh bidu on December 18, 2015 
Science
Consider the isothermal expansion of 4.50 mol of an ideal gas at 450 K from an initial pressure of 12.0 bar to a final pressure of 2.75 bar. Describe the process that will result in the greatest amount of work being done by the system and calculate work
asked by Katherine on January 25, 2011 
Intergrated science
I need help... I don't know where to begin to answer this question. We are working in force/work ok... This is the question: A pole vaulter weighing 175 lbs leaps 16 ft over a bar . How much work is done?
asked by Harris on January 23, 2013 
algebra
a survey of 2000 people was giuven their mode of transportation to work each day, the pie chart below gives the results of people surveyed, how many traveled by bike to work?
asked by ngo on March 24, 2011 
AP Physics 1
How much work is required to compress a spring, k = 33.3 N/m, from its equilibrium point at x = 0.0 m to x = 5.0 m? I am not sure how to approach a problem like this  what equation do I use? I know work = Force * Distance, but these aren't exactly terms I
asked by Tyger2020 on August 25, 2017 
Algebra
Find all solutions to the following system of equations: x + 3y + 2z = 6 3x + y + 5z = 29 2x  3y + z = 14 This just did not work out for me. Here is my work: I first solved Equation #1 for x. x = 3y  2z + 6 Then, I did substitution, and replaced x for
asked by Anneliese on February 25, 2009 
I cant post
I have problem i cant submit my work this keep poping up when i need to submit my work the page you are trying to access is forbidden. Please contact Jiskha Homework Help if you believe you have received this message in error. For Further Reading
asked by JOSEPH on April 25, 2012 
algebra
A survey of 2,000 people was given to find their mode of transportation to work each day. The pie chart below gives the results. Of the people surveyed, how many travel by bike to work?
asked by Tanita Canty on October 2, 2011 
Math
Naomi and 50 red beads and white beats the number of red beads is one more than six times the number of white bees how many red beans does Naomi have. What does one more than six times the number of white beads mean coming from me Alexis I do not know how
asked by Alexis on October 19, 2015 
Physics
A crate (weight 381 N) is lowered vertically a distance of 3.0 m by two ropes at a constant speed of 1.2 m/s. The tension in rope A is TA = 248 N; the rope makes an angle of ƒÆA = 63‹ with the horizontal. Rope B makes an angle of ƒÆB = 55‹ with
asked by Monica on October 27, 2007 
Physics
A glider (mass = 0.12kg ) on a frictionless horizontal air track is connected by a light string over a pulley to a metal block (mass = 0.13kg ) hanging vertically (see figure below). The objects are released from rest and move 0.44 m . a)Find the objects'
asked by Eman on October 12, 2011