Saturday
May 23, 2015

Search: determine the work done (including the algebraic sign).

Number of results: 40,021

Chemistry
If you mix 20.0mL of a 3.0M solution with 30mL of a 5.00M solution, determine the concentration in molarity of the new solution.
April 16, 2015 by Chris

Chemistry
Please help me with these problems, the book examples very different. I'm really confused. Any help with these will help me immensely. Thank you in advance! What I got were: 1.)c 2.)d 3.)a 4.)c 5.)b 1.) When is any endothermic reaction spontaneous? a.)When ΔSreaction >...
November 16, 2014 by Herbert Lee

Math
Determine the color, driver and mpg of each car by the information: 5 different drivers -- Cox, Durham,Gosling, Heynek and Wollinsky. Car colors-- blue, green, red, white and yellow. different mpg-- 32, 31, 30, 29 and 28 1. Durham got morempg than the green car but not as many...
August 28, 2008 by Mary

MATH HELP
The amount of fill (weight of contents) put into a glass jar of spaghetti sauce is normally distributed with mean ì = 843 grams and standard deviation of ó = 9 grams (d) Find the mean of the x distribution. (Give your answer correct to the nearest whole number.) 843 Was my ...
June 19, 2013 by TOM7

Science
Put the following in the correct order. Report results Determine if hypothesis is true Do background research Construct a hypothesis Collect data Analyze results and draw conclusions Design and implement an experiment State the problem / ask questions Correct Order State the ...

i have a problem with this question my teacher gave me. i don't know what to write for the answer. the problem: there is a girl named Jane who is hired as the head of the payroll department at R& S Electronic company, firm of 75 employees. she is hired by Eddi the general ...
August 22, 2011 by jack smith

Let f(x)=[x^3-9x] [] --- absolute value a. does f'(x) exist? b. does f'(3) exist? c. does f'(-3) exist? d. determine all extrema of f.
November 4, 2008 by dt

MATH
Determine all the absolute extreme values for the function f(x, y) = sin x sin y sin(x + y) on the square 0 <x <PI ,0 < y < PI.
March 26, 2010 by GRAVITY

calculus
Determine all the absolute extreme values for the function f(x,y) = sin(x)*sin(y)*sin(x+y)on the square 0<x<pi, 0<y<pi
March 28, 2010 by LOL

Trig
Given that theta is a quadrant 3 angle with cos of theta=-7radical65/65, determine tan of theta
March 10, 2011 by Mark

Chem20
Determine ΔG in kJ at a temperature of 261 K given ΔHrxn = 91 kJ and ΔSrxn = 151 J/K.
May 2, 2011 by Ryan

geometry
Segment AB is a midsegment of trapezoid WXYZ, and segment ZY is parallel to segment WX. Determine WX if AB = 10 cm and ZY = 7 cm. Justify your answer.
July 26, 2012 by victoria

Determine the Interval notation and Inequality notation of the absolute value notation: abs(x)>-5
February 19, 2013 by jc

Algebra II
Determine if the following equation is linear. -7^2+y^2-y^2=3x+7 Linear and Standard Form ______________ or Non Linear
March 5, 2013 by Shelvia

Maths
In the sequence 3,p,q,24 are the first four terms.determine the values of p and q if the ,(a)the sequence is geometric .(b)the sequence is arithemetic
February 25, 2015 by Rabelani

Algebra
Given a line containing the points(1,4), (2,7) and (3,10) determine that slope-intercept form of the equation, provide one additional point on this line, and graph the funtion. Start by putting the first point into point-slope form: y-y1=m(x-x1), so y-4=m(x-1). Slope, or m, is...
January 7, 2007 by delmore

Physics
Electrons are ejected from a surface with speeds ranging up to 6.0 x 10^5 m/s when light with a wavelength of 400 nm shines on it. a.) What is the work function of this surface? b.) What is the threshold frequency for this surface? c.) What is the deBroglie wavelength of an ...
June 12, 2006 by Nathaniel

The Situation. Your company recently installed an Eazy-Air Model 77 air conditioner in the upstairs den of Mr. and Mrs. Norman E. Stocker’s home (41 Citrus Place, Sumatra, FL 32691). Installation was unusually difficult because the oak paneling in the room was old and brittle...
August 16, 2007 by Mr. Salman

Literaure Question-Desperate For Help!
It is not wise to rely on the ________ to determine whether a stereotype exists in a book. title, illustrations, book's format, or copy-right date I do not know how to answer this question. My text says do not rely on the date of publication to tell you if a stereotype exists...
February 5, 2007 by Karin

Windows Server 2003 HELP ASAP!!!
Could please help me with some questions aswell as check the ones I've answered? Thanks! Which of the following media has the largest data storage capacity? a. Zip cartridge b. CD c. DVD (This is what I think the answer is) d. Jaz cartridge Why is hardware data compression for...
September 30, 2006 by I_Love_Music

Law
Many notable characters, songs, and movies that were previously set to enter into the public domain have not as of yet due to repeated extensions of the copyright laws that have extended protections. Many of the Disney characters, including Mickey Mouse, Donald Duck, and Goofy...
November 10, 2011 by Bryan

Earth Science Continued
Please help me with the following questions: 1. A scientist suspected that the increase in the acidity of ocean water could have a devastating effect on organisms such as snails because it could break down calcium carbonate, a chemical that makes up their shells. Which could ...

Geometry
Determine whether the triple of numbers can be the sides of a right triangle. Please explain. 6, 8, 10 Squareroot of 2, Squareroot of 3, Squareroot of 10
December 5, 2009 by Renee

chemistry
Determine the overall orders of the reactions to which the following rate laws apply: a) rate= k[NO2]^2 b) rate = k c) k [H2][Br2]^1/2 d) k [NO]^2[O2] is it.. a. 2 b. 0 c. 1 1/2 d. 3
July 15, 2010 by Jin

Calculus
Determine whether the curve has a tangent at the indicated point. f(x)= sin x 0<x<3pi/4 cos x 3pi/4<x<2pi at x = 3pi/4
September 7, 2010 by Hannah

math
the third term of a geometric sequence is t3= -75 and the sixth term is t6= 9375. determine the first term and the common ratio
January 4, 2011 by liza

Chemistry
Determine whether the following reaction is endothermic or exothermic: Mg(g) + 2 F (g)--> Mg 2+(g) + 2 F- Mg: I1= 738 kJ/mol I2= 1451 kJ/mol F: EA= -328 kJ/mol
April 18, 2011 by Kamila

trigonometry
given that sin alpha/2 = 2/3, and that alpha/2 is in quadrant II, determine the exact values of all trig functions for alpha.
April 15, 2012 by kiko

Physics
When uranium 92U235 decays, it emits a ray. If the emitted ray has a wavelength of 1.30 x 10-11 m, determine the energy (in MeV) of the ray
July 27, 2012 by Beth

maths
the third term of a geometric sequence is 6 and the sixth term is 3 over 32. Determine the first terms and the general term Tn?
January 23, 2014 by bahle

Math
For each arithmetic sequence, determine a) the value of t1 and d (2 marks) b) an explicit formula for the general term (2 marks) c) t20 (2 marks) 7/4, 1, 1/4, -1/2
September 18, 2014 by Alex

Math
For each arithmetic sequence, determine a) the value of t1 and d (2 marks) b) an explicit formula for the general term (2 marks) c) t20 (2 marks) 3a, 3a – 2b, 3a – 4b, 3a – 6b, …
September 19, 2014 by Alex

physics
A rock is given a KE of 2.00*10^4 J when it is launched vertically upward. If the rock reaches a height of 50m determine the mass of the rock.
January 6, 2015 by moooose

geometry
The third term of a geomatrie sequence is 6 and the sixth term is 3/32.determine the fist three terms and the general term Tn
February 8, 2015 by Snontia

Calculus
For the question "Determine the equation of the tangent to the curve y = xtanx at the point with x-coordinate π." how is the answer -πx + y + π2 = 0?
March 9, 2015 by Sara

AP Physics
A light string that is attached to a large block of mass 4m passes over a pulley with negligible rotational inertia and is wrapped around a vertical pole of radius r. The system is released from rest, and as the block descends the string unwinds and the vertical pole with its ...
February 18, 2008 by Mary

chem- ion
naming chemical compounds. I don't really get how you get the symbol from the word or the other way around for polyotomic ions so.. here are some examples that a website gave me: this is wut the site said to do:(Its confusing to me) The name of the compound should have a roman...
October 19, 2010 by claire

How do you determine the ymax? I know you have to use Q which I have values that were given to me as well as vo values but I am not sure what to do with these values. Physics - drwls, Saturday, September 15, 2012 at 1:29am Define your terms. I have no idea what you are talking...
September 15, 2012 by Hannah

physics
Two thin rectangular sheets (0.06 m 0.52 m) are identical. In the first sheet the axis of rotation lies along the 0.06 m side, and in the second it lies along the 0.52 m side. The same torque is applied to each sheet. The first sheet, starting from rest, reaches its final ...
June 1, 2007 by meredith

physics (thanks)
in the context of the loop and junctions rules for electrical circuits a junction is: a) where a wire is connected to a resistor b) where a wire is connected to a battery c) where only two wire are joined d) where three or more wire are joined e) where a wire is bent My answer...
March 27, 2007 by susane

college essay
Which of the following would you prefer and why. The opportunity to take a wide range of courses across a range of disciplines including the sciences, social sciences, and humanities, or the opportunity to focus on courses in one discipline that deeply interests you? Answer: I...
November 19, 2007 by jasmine

MATH,HELP
Including yourself, you have an 11-man squad prepared to build fortifications for hte next six hours. It is 98-degrees in the shade. You have directed each soldier to drink one quart of water per hour duing this period. Each individual has two 1-quart canteens full of water. ...
March 26, 2007 by jasmine20

Math (Fourier)
I want to self-study Fourier Transforms followed by signal analysis and Wavelets. I am considering buying the books: "Fourier Analysis: An Introduction" and "A First Course in Fourier Analysis". My question is, are these at my level or are they over my head? Are these books ...
August 21, 2009 by Sean

Social Studies
"To no one will we sell, to no one will refuse or delay, right or justice." This quote from the Magna Carta have influenced the colonists to believe that a) no person who was a criminal has the rights to earn money or purchase from others. b) Each person has the rights to pay ...
October 9, 2014 by Help please?!

algebra
2. The equation relates the radius r of a drainpipe in inches to the flow rate F of water passing through it in gallons per minute. a. Find the radius of a pipe that can carry 600 gallons of water per minute. Round to the nearest tenth. (Let ) b. Solve the following equation ...
July 11, 2011 by stephanie

Math
1. Determine which ratio forms a proportion with 9/5 by finding a common multiplier. a. 54/30 b. 45/50 c. 45/40 d. 90/20 2. Determine which ratio forms a proportion with 15/8 by using cross products. a. 25/16 b. 30/12 c. 60/32 d. 75/32 3. Solve 3/27 = w/54 a. 2 b. 6 c. 9 d. 18...
December 4, 2014 by Lelo

Molar Mass & Elements
The weight percent of oxygen in an oxide that has the formula MO2, is 15.2%. What is the molar mass of this compound? What element or elements are possible for M? what can someone give me a push in the right direction???? Let x be the taonic mass of the unknown element. Solve ...
June 26, 2006 by nglaze

Accounting
I have completed all of my assignment except this one last question. I am having a heck of a time figuring out where to even start. Can anyone help me? The comparative year-end balance sheets of Sign Graphics, Inc., revealed the following activity in the company's current ...
July 12, 2014 by Lois

Art
I left out the following sentences, Writeacher. Thank you. 1) After that we’re having dinner (better we’ll have dinner) and after that we’ll go for a walk in the city centre. 2) On the next day we’ll first go on a sightseeing tour of (in ) the historic centre. 3) Then we’ll ...
May 29, 2012 by John

P-Chem
A 0.85-g sample is dissolved in 0.150 kg of bromobenzene. Determine the molar mass of the solute if the solution boils at 429.0 K at 1 atm pressure. The normal boiling point of bromobenzene is 428.1 K and the ebullioscopic constant is 6.26 K kg mol-1. A 0.85-g sample is ...
October 12, 2006 by Michelle

Math
Here is the math problem. 150 is 75% of what number? I know the rate is 75 percent and the base is 150. I am looking for the amount. My questions is how to find the answer? Do I divide? Okay maybe I am missing a huge section as to finding the answer to this question. I went ...
June 28, 2007 by marinda

triginometry
hi i tried solving this problem but i get the second part wrong? please help me. thanks you question: a) the maximum number of hours of sunlight is 15.3h, and occurs on June 21(day 172). The minimum number of hours of sunlight is 9.1h, and occurs on december 21(day 355). use ...
November 26, 2007 by steve

Chemistry
For the following electrochemical cell, what is the correct, balanced reaction? Cu(s) | Cu2+(aq) || Ag+(aq) | Ag(s) A. Cu(s) + Cu2+(aq) → Ag+(aq) + Ag(s) B. Cu(s) + Ag+(aq) → Cu2+(aq) + Ag(s) C. Cu(s) + 2 Ag+(aq) → Cu2+(aq) + 2 Ag(s) D. Cu2+(aq) + Ag(s) &#...
March 21, 2010 by Val

AP Physics B
The position of a 20 g oscillating mass is given by x(t) = (2.0 cm) cos(2t), where t is in seconds. Determine the following. The Amplitude (cm.) The Period (s.) The Spring Constant (N/m) The maximum speed (cm/s) The total energy (J) The velocity at t=0.40 s. (cm/s) I need your...
December 16, 2009 by Charlie

Math Contest question
determine the number of digits in the expansion (2^120)(5^125) without using a calculator or computer Find the coordinates of the two points that trisect the line segment with endpoints A(2,3) and B (8,2)
September 10, 2010 by Prethy

chem
Determine the mass(in grams) of each of the following compounds. a) 0.709 mol magnesium fluoride i got 30.7grams but it was wrong. id appreciate the help! thanks! also if i end up getting the help i have a couple other questions
November 9, 2010 by hannah

math
Determine the selling price of a 15-year, 4.725% bond, with \$1000 maturity value, with a yield of 4.735%. (Assume twice-yearly interest payments. Round your answer to the nearest cent.)
November 14, 2010 by liz c

math
Determine the selling price of a 15-year, 4.725% bond, with \$1000 maturity value, with a yield of 4.735%. (Assume twice-yearly interest payments. Round your answer to the nearest cent.)
November 14, 2010 by liz c

Chemistry!!!
3. Imagine that more than one band appeared in the GC chromatogram, but you were unable to run the standards. Instead you took the RI and corrected it to 20 oC (1.4205). RI can be used to determine the exact mole percentage of an isomeric mixture.
November 27, 2010 by Mandy

Chemistry
I need a creative title for a lab report that deals with using dalton's partial pressure law in order to determine the amount of hydrogen gas that was collected over water. any ideas?
December 15, 2010 by Jacob

Finance
determine the future value of education jenny franklin estimate that as result of completing her master degree , she will earn7000 a yeaar for the next 40 years. a. what would be the total amount of these additional earning
January 18, 2012 by quaneshia

physics
A CD has a mass of 17.4 g and a radius of 6.01 cm. When inserted into a player, the CD starts from rest and accelerates to an angular velocity of 20.0 rad/s in 0.901 s. Assuming the CD is a uniform solid disk, determine the net torque acting on it.
March 7, 2012 by Will

physics
A CD has a mass of 17.4 g and a radius of 6.01 cm. When inserted into a player, the CD starts from rest and accelerates to an angular velocity of 20.0 rad/s in 0.901 s. Assuming the CD is a uniform solid disk, determine the net torque acting on it.
March 8, 2012 by Will

Physics
A CD has a mass of 17.0 g and a radius of 5.98 cm. When inserted into a player, the CD starts from rest and accelerates to an angular velocity of 19.1 rad/s in 0.744 s. Assuming the CD is a uniform solid disk, determine the net torque acting on it.
March 8, 2012 by Jackie

Dynamics
a 1500 kg automobile is travelling upto 20 degrees inclined at a speed of 6m/s. if the driver wishes to stop his car in a distance of 5m, determine the frictional force at pavement which must be supplied by rear wheels
July 31, 2012 by vikrant

Biology/Science
1. Describe a SPECIFIC EXAMPLE of how increased temperature can change cellular processes. 2. What FACTORS (can be properties of animals or the environment) determine how wide a range of temperatures a species can tolerate? Be as comprehensive as you can.
October 2, 2012 by Pag

Science/Biology
1. Describe a SPECIFIC EXAMPLE of how increased temperature can change cellular processes. 2. What FACTORS (can be properties of animals or the environment) determine how wide a range of temperatures a species can tolerate? Be as comprehensive as you can.
October 3, 2012 by Pag

math
Find the first and second derivative of the function y=f(x)=x^3/(1-(x^2)) Use the information about the derivatives to determine any local maxima and minima, regions where the curve iss concave up or down, and any inflection points
November 22, 2012 by ravinder

Physics 1
(I) determine the tangential and centripetal components of the net force excreted on the car(by the ground) when it accelerates at a uniform speed of 15 m/s in 11 s, moving on a circular track of radius 500m. The cars mass is 1100kg.
May 18, 2013 by Martin

Physics 1
(I) determine the tangential and centripetal components of the net force excreted on the car(by the ground) when it accelerates at a uniform speed of 15 m/s in 11 s, moving on a circular track of radius 500m. The cars mass is 1100kg.
May 18, 2013 by Martin

dynamics
A 1500 kg automobile is treveling upto 20 degree incline at a speed of 6 m/s. if the driver wishes to stop his car in a distance of 5 m, determine the frictional force at pavement which must be supplied by rear wheels.
July 22, 2013 by neeraj sharma

Pigskin geography
Determine which state capitols( Denver, Atlanta, Indianapolis, Nashville, pheonix, or boston) The. Dallas cowboys will fly over or near en route to the' it's of brotherly love' _________ _ _ __________ _ _
October 17, 2013 by Mia

introduction to health care
which of the following statements is true a.doctors are held to the same reasonable person standard as the general public b. professional standards cans determine if negligence has occurred my answer is b
November 17, 2013 by susue

Gen Chem
In an experiment I used .139 grams of an Alka Selzter table. A question asks us to determine the amount of CO2 dissolved in 5.10ml of 6M HCl. How do you go about solving such a problem?
November 22, 2014 by Jessica

probability and statistics
a certain university in the region has a population of 20000 students distributed into 15 courses and four year levels.if you would like to determine the sample size, what technique can be applied
January 4, 2015 by fin

Civics
Which of the following is an example of a power the U.S. Constitution delegates to the national government? Print and coin money Charter new banks *** Make laws about marriage Determine voter qualifications
January 12, 2015 by jeje

Prob/Stats
determine the average savings balance on a particular day. error of tolerance is 50. what is the minimum number of accounts he must sample to construct a 95% confidence interval. the standard deviation is 350
February 19, 2015 by chris

pkg1 pkg2 215 148 89 70 367 292 find the relative frequency of occurrence approach to determine the probability that a tube of toothpaste sold had packaging style 1
April 6, 2015 by charissa

math
December 18, 2014 by starie johnn

math!
for f(x)=x^2+kx+k, determine all values of k such that f(x)>0 The minimum of f(x) occurs when f'(x) = 2x + k = 0, x = -k/2 The value of f(x) at that minimum is f(-k/2) = k^2/4 -k^2/2 +k = k^2/4 + k That minimum is >0 if k>0 or k< -4
October 29, 2006 by moi

math
Determine which of the sets of vectors is linearly independent. A: The set {p1, p2,p3} where p1(t) = 1, p2(t) = t^2, p3(t) = 3 + 4t B: The set {p1, p2,p3} where p1(t) = t, p2(t) = t^2, p3(t) = 3t + 4t^2 C: The set {p1, p2,p3} where p1(t) = 1, p2(t) = t^2, p3(t) = 3 + 4t + t^2 ...
August 5, 2007 by zinnia

Math
Given: f(x)=2+x g(x)=sqrt(x-7) h(x)=2x^2-5 Determine: g(h(x)) This is what I've got so far: f(x)=2+x g(x)=sqrt(x-7) h(x)=2x^2-5 g[h(x)]=sqrt(h(x)-7) And I don't know if that's right or not >_< Please help!
July 28, 2009 by Anna

SCIENCE
HOW CAN YOU DETERMINE THE NUMBER OF NEUTRONS AN ATOM HAS FROM AN ATOMS MASS NUMBER AND ITS ATOMIC NUMBER
December 18, 2009 by SPOOKY

arithmetic
determine the A.P whose fourth term is 18 and the difference of the ninth term from the fifteenth term is 30.
February 27, 2012 by shabna

Chemistry
Determine the boiling point(bp)of 0.44 m Naphthalene, C10H8, in Benzene, C6H6. kb(C6H6)=2.53, bp(C6H6)=80.1
February 11, 2013 by Shelly

Pre-calculus
Find the critical point of the function y=-2(x-1)^2-3. Then, determine whether the point represents a maximum, a minimum, or a point of inflection.
August 23, 2008 by Lucy

Pre-calculus
Find the critical point of the function y=-2(x-1)^2-3. Then, determine whether the point represents a maximum, a minimum, or a point of inflection.
August 25, 2008 by Lucy

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.
November 20, 2009 by Brittany

Physics
Hillary kicks a ball so that it is in the air for 3.2 s. The ball lands down field 56 m from its starting point. a. Determine the x and y velocities of the ball.
October 10, 2010 by katelyn

com156
How might you determine what is fact and what is opinion? Does the opinion of an expert in the field carry more weight than the opinion of someone that is not? Explain why or why not
October 30, 2010 by Anonymous

Chemistry
Can the 5% approximation be used to determine the pH of the following solutions? How do I do this question? (A) 0.56 M hypochlorous acid - yes (B) 3.00 M nitrous acid - yes (C) 0.010 formic acid - no
December 15, 2010 by LISA

chemistry
A solution is prepared by dissolving 23.7g of CaCl2 in 375.0g of water. The density of this solution is 1.05g/mL. determine the concentration (molarity) of Cl in solution.
March 14, 2011 by jim

Math
One card is selected from a deck of playing cards. Determine the probability of selecting: a card greater than 9 or a black card.
July 26, 2011 by Jen

science
a particle travels in a straight line ,such that for a short time 2s<t<6s its motion is described by v=(4/a)m/s where a is in m/s^@. if v=6m/s when t=2s,determine the particle the particle's acceleration when t=3s
June 28, 2012 by bk4

math
) Determine whether the following two planes x + 4y − z = 7 and 5x − 3y −7z = 11 are parallel, orthogonal, coincident (that is, the same) or none of these.
April 22, 2014 by Carrolyn

math
determine known length for a triangle one side is 2.5cm other side 1.6cm find how solve the third side
October 9, 2014 by anita

Algebra
1. (2x-6)/(21) divided by (5x-15)/(12) 2. Solve (x)/(x-9)-4=(9)/(x-9)..I got -6, is that correct? 3. Add. Express your answer in simplest form...(4)/(s)+(6)/(s^2).. 4. Add. Express your answer in simplest form...(x^2)/(x+4)+(8x+16)/(x+4) Lets check you number 2) -6/(-15) - 4= ...
May 27, 2007 by Helpless in Math

CHEMISTRY
Mass (before reaction): test tube + HCl(aq) + stir bar + capsule 26.600 g Mass (after reaction): test tube + HCl(aq) + stir bar + capsule 25.300 g Volume of water displaced from the squirt bottle 148 mL Temperature of the CO2(g) 287.4 K Pressure (atm) 1.032 atm Using this data...
October 22, 2012 by Karina

Hamlet
This question is in regards to Hamlets to be or not be speech. Historians have noted that some of the most effective leaders in recent history, including some recent Presidents, have not been considered to be especially intelligent. They have made quick decisions and decisive ...
April 19, 2011 by Emma

For Kristy - re Hamlet
http://www.jiskha.com/display.cgi?id=1357147928 and http://satomko.hubpages.com/hub/Fortinbras-as-a-Foil-for-Hamlet Do. Not. Plagiarize. If you are not clear on what plagiarism is and how NOT to plagiarize from a source, read through this entire webpage from Capital Community ...
January 3, 2013 by Writeacher

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