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September 30, 2014

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

Number of results: 36,525

Pre Calculus
Determine all discontinuities that exist on the graph of y = f(x) shown below. Please show your reasoning by justifying your answer with the conditions of continuity. If there is a discontinuity, identify it as removable or non-removable.
April 5, 2012 by Nanda

math(mechanics)
the velocity of a particle traveling in a straight line is given by v=(6t-3t^2)m/s, where t is in seconds, if s=0 when t= 0. determine the particles deceleration and position when t=3s. how far has the particle traveled during the 3s time interval and what is its average speed?
April 18, 2012 by chanz11

chemistry
Ni(II) coordination compound in an octahedral arrangement. Determine exact formula of compound. Info given: 4.37x10-4 moles of complex in 425 mL of water. You find that 17.49 mL of .1000 M HCl is need to titrate.
May 8, 2012 by tc

Maths B
The following data shows the weekly sales claimed by some door-to-door salespeople selling sets of reference books: 5 8 10 7 6 3 8 12 8 3 12 15 6 8 7 5 3 18 19 15 13 14 18 24 Determine whether any of the claims should be investigated as suspicious
May 24, 2012 by Rianna

chemistry
determine the mass of a 50.0mL sample of your salt solution. Report the mass as a number and use all lower case letters to spell out the word(s) in the unit(s). y = 1.049 x + 0.096
May 28, 2012 by Elias

Introduction to Psychology
Dr. Hall believes that thought processes determine behavior.She encourages her patient to examine the way he looks at problems and solves problems. They look for successful and unsuccessful evaluations and strategies.
May 30, 2012 by Smith

Chemistry
When you use UV Vis to determine the purity of the product- how does knowing the amount of salicylic acid help? Do you only use this when you know (after adding Fe3+) that the aspirin isn't pure? I know there is a very simple answer to this question...
June 9, 2012 by mish

Algebra
I have major issues with problems like these,please I need help. For these systems of linear equations in questions -Determine how many solutions exist -Use either elimination or substitution to find the solutions (if any) 1. y = 2x + 3 and y = -x - 4 2. 2x + 3y = 8 and 3x + ...
June 10, 2012 by Vilma

College Algebra
The concentration C of a certain drug in a patient's bloodstream t minutes after injection is given by C(t)=50t/t^2+25. Determine the time at which the concentration is highest. Round your answer to the nearest tenth of a minute.
October 22, 2012 by Rene

Differential Calc
If: 0 = f(1) = a+b+c+d 2 = f(-2) = -8a+4b-2c+d 0 = f'(1) = 3a+2b+c 0 = f'(-2) = 12a-4b+c "since we now have four equations and four unknowns, we can determine unique solution. Solving for "a" and "b", a=, b=" Please show the steps, I am so confused and no one knows how to do ...
November 5, 2012 by Joey

chemistry
You are doing an experiment to determine the Ksp of a salt. If, while filtering, some of the solid passed through the filter and was not taken out before titrating, how would the calculated Ksp and solubility be affected? Thanks.
November 11, 2012 by Ashley

Physics
Use Kepler's Laws and data about the Moon to determine the orbital period (hours) of a satellite that is 17512 km above the SURFACE of the Earth. HINT: How does the radius of the Earth affect the problem?
December 20, 2012 by Alex

THEORY OF MACHINE
A piece of material subjected to three mutually perpendicular stresses of 70, 56 and 84 MPa. If E= 200 Gpa, Poissions ratio= 0.28 Determine 1) Principal strains 2) Shear modulus 3) Bulk modulus.
January 12, 2013 by rajesh jain

astronomy
if the earths orbit is 1.5x10^8km, determine how fast earth moves along its orbit assume there are 365 days in a year. remember the circumference of a circle is equal to 2pi where r is the radius.
January 16, 2013 by kristy

physics
A 2000 watt heating element is connected in parallel to a 100 watt bulb across 200 volt source. Determine the total power and heat generated in the combination for 1.5 hours. help!
February 10, 2013 by nitz

science
the block is acted upon by its W=200 lb, a horizontal force Q=600 lb, and the pressure P exerted by the inclined plane. The resultant R of those forces is up and parallel to the incline thereby sliding the block up it. determine P and R.
June 28, 2013 by mi

solid mechanics
A steel block 200mm*20mm*20mm is subjected to a tensile force of 40kn in the direction of its length.Determine the change in volume,if Eis 205kn/mm square and poisson's ratio=0.3.
July 25, 2013 by sushil

Physics
an object 2.6 cm high is 24cm from concave mirror whose radius of curvature is 16cm. Determine the location of its image. the answer is 12cm in front of mirror. I want to know what to get this. What steps and which formulas are used? please help
January 22, 2014 by Sykox

SOLID MECHANICS
A piece of material subjected to three mutually perpendicular stresses of 70, 56 and 84 MPa. If E= 200 Gpa, Poissions ratio= 0.28 Determine 1) Principal strains 2) Shear modulus 3) Bulk modulus
January 31, 2014 by Anonymous

solid mechanics
at a point in a strained material the principal stresses are 60MPa and 40MPa.find the position of the plane across which the resultant stress is most inclined to the normal and determine the value of this stress.
February 3, 2014 by sabin

B-Tech mechanical
At a point in a strained material the principal stresses are 60MPa and 40MPa. Find the position of the plane across which the resultant stress is most inclined to the normal and determine the value of this stress.
February 14, 2014 by Ravi

Math
How do I solve this problem? : Four rectangle strips of wood, each 30 cm long and 3 cm wide, are arranged to form the outer section of a picture frame, as shown. Determine the area in side the wooden frame.
March 4, 2014 by Gaby

Statistics
Determine the minimum sample size required in order to be 95% confident that our estimate is within 4% of the true percent of all US households using e-mail. Assume no prior estimate available.
March 17, 2014 by mary

Survey of mathematics
A homeowner installed a new swimming pool for $8500. He paid 8% down and then paid 36 monthly payments of $243.07. Determine the APR of the loan to the nearest one-half of a percent.
June 20, 2014 by Jennifer

Please help! Urgent
A homeowner installed a new swimming pool for $8500. He paid 8% down and then paid 36 monthly payments of $243.07. Determine the APR of the loan to the nearest one-half of a percent.
June 20, 2014 by Jennifer

physics
A 2.53-μC charged particle with a kinetic energy of 0.0929 J is fired into a uniform magnetic field of magnitude 0.147 T. If the particle moves in a circular path of radius 2.92 m, determine its mass.
July 21, 2014 by Caty

Power circuit theory
A three phase fully transposed transmission line ha s solid conductors of 2 cm diameter, spaced at distances between centres of 3.65 m, 5.5 m and 8.2 m. Determine the inductance of the complete line per km.
August 20, 2014 by Md

geography
what would be some simple sanitation uses in australia? and you were usin tools made by yourself. the location of australia is in the area of west and south Gippsland. also including Wilsons Promontory, Victoria I'm not sure what you mean by "sanitation uses." South and west ...
February 23, 2007 by Philo

algebra
how do I work this? (-4x^12y^7)^2 (2x^-3y^-2)^2 divided by (5x^-3y^10)^-1 i need step by step help
October 14, 2007 by dave

math
Show work for 6 times a number is 14 more than that number?
November 6, 2007 by shanae

Algebra
show all work for counterexample.for all integers a, b, and c----if a=b, then a/c=b/c
June 3, 2009 by Nicole

physics
Graphically solve for the WORK done if F= 40N @ 30 degrees and d= 12 @ 0 degrees.
November 21, 2010 by russell

Physics
A motor does 5,000 of work in 20 seconds what is the power of the motor
December 14, 2010 by Anonymous

8th grade math
I need to know how to work this math problem: 3n + (-7) -5n +1
September 9, 2011 by david

Math
2(27+4x)+7x=21 Please help me solve this problem and show your work please and thank you
February 15, 2012 by Sadie

Math PLEASE HELP ME!!
What is 14% of 120?? PLEASE SHOW ALL WORK, THANK YOU!!!
March 11, 2012 by Madelyn Santiago

chemistry
You work with the following system: 2X(g) <--> Y(g) At, equilibrium, [Y]=3[X]. If K=10, calculate the [Y] at equilibrium.
May 10, 2012 by Katie

grammar
Plural possesive of Mr. Valdez. (i.e., Mr. Valdez's performance at work....)
October 17, 2012 by Linda

math
(10x+2)-(x-10) simplified please! Thank you,please show the work!
October 25, 2012 by t

Algebra
Evaluate the expression.(50) How do I solve this expression? Can you show work. Thanks.
January 31, 2013 by Mike P

Spanish
Can you please unscramble the work in Spanish with the letters RACHAAMR
February 27, 2013 by Portia

Algebra 2 variables
Find the values of the variables. [-12 -w^2] = [2k -81] [2f 3] [-4 3] Show your work?
April 19, 2013 by Ana

chem!
You work with the following system: 2X(g) <---> Y(g) At, equilibrium, [Y]=3[X]. If K=10, calculate the [Y] at equilibrium.
April 21, 2013 by scilover

math
i need to know how to work this problem out step by step..[-16*-11/(4-9)] thank you
September 15, 2013 by sharolyn

chemistry help~Please!!!
What are the Ka and/or Kb value for 1M ZnCl2 Show work please!!!
April 11, 2014 by Eric

chemistry
0.050 kg of 4.0% (m/m) MgCl2 the answer is 2.0g MgCl2 how do you show the work
April 24, 2014 by Reina B.

math,algebra
(3^-1X^3)^2 x 12X^5 my work: 3/2X^6 x 12X^5= 36/2=18X^11 but the answer was 4/3X^11
September 23, 2014 by Chris

Physics
Took a leaf out of Eileen's book for the picture corresponding to the problem (you have to delete the spaces in 'h t t p :'): h t t p ://img444.imageshack.us/img444/1057/circuit6pk4.png In the circuit that is in the link above, the switch S is initially in the open position ...
April 13, 2008 by Bobby

social science: Plz Answer
I need articles that pertain to this question. How does a teacher evaluation for a student's entry into a program (ex. summer program) determine his success in the program?
July 29, 2008 by Linda

Pre-calculuc-check answer
Which is true for the graph of f(x)= -x^3+3x-2? Answer: relative maximum at (1,0) 2) Determine between which consecutive integers one or more real zeros of f(x)= 3x^4+x^3-2x^2+4 are located. Answer: -1 and 0
August 23, 2008 by Lucy

chemistry
Determine the number of bromide ions in solution when 4.23 g of magnesium bromide and 1.21 g of potassium bromide are dissolved in 120mL of water. Please explain not sure how to even start this problem, thanks!
December 8, 2010 by Stacy

DIT
Given the co-ordinates (x,y) of a center of a circle and it's radius. determine whether a point lies inside the circle or outside the circle? Tell three formlaes which are used in this question?
April 8, 2011 by AKHLAQ

Chemistry
Determine how many grams of active antacid ingredient AL(OH)3 would be necessary to neutralize the HCL in 50.0 mL of .0100 M HCL (an approximation of the conc. of HCL in the stomach) 3HCL9aq)+AL(OH)3(s)-> AlCL3 (aq) = 3H2O (L)
June 7, 2011 by Vinny

algebra
If you are standing 85 ft from the base of a flagpole, and determine that at ground level, you would need to look up at a 30 angle to see the top of the flagpole, how tall is the flagpole? Round the height to tenths.
July 10, 2012 by Justyn

Physics
A string is fixed at both ends and vibrating at 120 Hz, which is its third harmonic frequency. The linear density of the string is 4.9x10-3 kg/m, and it is under a tension of 3.6 N. Determine the length of the string.
March 3, 2013 by Tim

Concavity-Calculus
Determine the concavity for f(x)= 4/x^2-1 I took the second derivative and solved for zeros. I got x=-1 and x=1. However when plugged into the orig. equation this results in 4/0 (undefined). Does this mean there is no concavity?
March 10, 2013 by Lisa

Dyanamics
A particle of mass m moves in a x-y plane. the co-ordinates of the particle at any instant are given by x=acos(wt) & y=bsin(wt) where a,b,w are constsnt.Determine the angular momentum of the particle with .r.to the origin of the co-ordinate system
December 6, 2013 by vinod

Chemistry
Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium concentration of SO2(g). 2SO2(g)+O2(g)=2SO3(g) Kc=1.7*10^8 [SO3]aq=0.0034 M [O2]aq=0.0018 M
December 10, 2013 by Timothy urgent need

science
Two forces of 5 N and 12 N respectivlely act on the same point. Show how to determine the magnitude of the resultant by using the tail to head and tail to tail methods and pythagoras theorem.
February 22, 2014 by Steven

Chemistry
For the compound Ge[S(CH2)4 CH3)]4 determine: a.) the ratio, by number, of C atoms to H atoms b.) the ratio, by mass, of Ge S THANKS!
September 30, 2007 by Justin

math
Determine if the given rates are equivalent? 12 gallons of paint/8,329ft^2 =? 9 gallons of paint/1,240 ft^2
October 19, 2007 by chester

calculus
for each series determine if the series is absolutely convergent and convergent the sum from 0 to infinity of (-1)^n/(the square root of (n+1))
March 2, 2008 by sarah

math
Calculate the magnitude of a when a = (2, 3, -2). Find (1/|a|)xa. Is it a unit vector. I calculated the |a| = sqrt17. I don't know how to determine if it's a unit vector or not?
March 29, 2008 by Anonymous

graphing
Determine whether the graphs of the two lines are parallel. y+3=3x 6x-y=-3 Are the graphs of the given equations parallel?
April 20, 2008 by Shawn

chem
Use the molar volume of a gas at STP to determine the volume (in L) occupied by 10.5g of neon at STP.
October 10, 2008 by nikki

LSU
Determine the surface area of a cylinder whose height is 2m and whose base has an area of 9 pi m square?
December 2, 2008 by Allison

Peer Review Article
I'm looking for 2 articles in Biology and I can't determine if they're peer review or not. Can anyone help with what I'm supposed to look for?
January 26, 2009 by Sam

Algebra
Explain how you would determine whether the graph of y = x^4 represents an exponential function. What is an exponential function? Thank you! :-)
March 30, 2009 by Cassie

Chemistry
Determine the molar concentration of ethanol (C2H6O) in a wine that is 14% ethanol by mass. The density of this wine is 0.93 g/cm^3.
October 3, 2009 by Anonymous

Vector & Geometry
Determine the vector having initial point P(x,y,z) and the terminal point Q(x,y,z) and find its magnitude.
October 28, 2009 by Beta plus

Algebra
Determine the number of real-number solutions to the equation -2x2 - x - 5 = 0, given the graph of y = -2x2 - x - 5
May 16, 2010 by Carmen

calculus
Determine whether the sum from n=1 to infinity of arctan(2n^2/(25n+1)) converges or diverges. If it converges, what is the sum?
September 7, 2010 by bill

empirical formula of a compound
if 11.80 g of iron reacts with 5.06 g of oxygen . Determine the empirical formula of the resulting oxide ?
October 9, 2010 by r2rou2a

algebra
when you solve a system of equations by the substitution method, how do you determine whether the system of equations is dependent?
October 28, 2010 by Stephanie

Geometry
If the boy is 4' 9" tall and his shadow is 6 ft. and the shadow of the flagpole is 19 ft., determine the height of the flagpole (to the nearest tenth).
January 17, 2011 by Ivan

Chemistry
Determine the volume of concentrated HCL and the volume of water needed to produce 20mL of 6M HCL.
January 26, 2011 by Michelle

pharmacy tech
Determine the milliliters of water needed to prepare 2 oz of a 10% solution from a 12.5% solution and distilled water.
April 4, 2011 by rob

pharmacy tech
Determine the milliliters of water needed to prepare 2 oz of a 10% solution from a 12.5% solution and distilled water.
April 4, 2011 by rob

MATH....
Determine the level of the confidence given the confidence coefficient z(α/2) for the following situation: z(α/2) = 1.96
November 3, 2011 by Jen

maths
use square nombers to determine at least 3 pattern for the first five square nombers.
November 9, 2011 by kell kell

precalculus
find the inverse of the function, graph the inverse function, determine the domain, range and asympotoes f(x)= e^-x/(2)+4
November 12, 2011 by mz tee

calculus
6. Determine a, b, c, and d so that the graph of y=ax^3+bx^2+cx+d has a point of inflection at the origin and a relative maximum at the point (2, 4). Sketch the graph.
January 3, 2012 by Yoona

chemistry
Determine the specific heat of iron if 6.1 J of energy are needed to warm 1.50 g of iron from 20 degrees C to 29 degrees C
January 16, 2012 by Anonymous

Math
Lines A and B are perpendicular and have the same x-intercept. The equation of line A is x+2y-4=0. Determine the y-intercept of line B.
January 23, 2012 by Alana

algebra
When you solve a system of equations by the substitution method, how do you determine whether the system of equations is inconsistent?
March 21, 2012 by algebra

Math
lines a and b are perpendicular and have the same x-intercept. The equation of line a is x+2y-4=0. Determine the y-intercept of line b.
August 12, 2012 by Anonymous

Math
Two points for each of two lines are given. Determine if the lines are parallel, perpendicular, or neither. L1: (4, -6) and (3, -2) L2: (3, -1) and (7, 0)
September 11, 2012 by Neil

Algebra2
Check Please? Determine if the given function is even, odd or neither. 1. f(x) = 3x^4 - 2x^2 =Even. 2. f(x) = x^3 + x = Odd.
November 29, 2012 by Pam

Phsyics
Determine the magnitude and direction of the gravitational force exerted a) on the Moon by Earth and b) on Earth by Moon.
December 18, 2012 by g

physics
an object's acceleration is given by the function a= 2/v^2, determine an expression for the velocity of the object as a function of time. (at t= 0, v=0)
January 12, 2013 by Kiana

physics
an object's acceleration is given by the function a= 2/v^2, determine an expression for the velocity of the object as a function of time. (at t= 0, v=0)
January 12, 2013 by Kiana

science
List 3 other elements similar to properties of Flourine. a. Why did you choose these? b. How did you determine their properties were similar?
February 21, 2013 by teacher1

Physics
In the drawing below, R1 has a resistance of 6.2 and R2 has a resistance of 2.6-. Determine the current (magnitude and direction) in the 6.2 and 2.6- resistors in the drawing.
February 24, 2013 by Don

Applied Calculus
Let f(x) = −x2 + ax + b. Determine the constants a and b such that f has a relative maximum at x = 2 and the relative maximum value is 13.
February 27, 2013 by Jacob

Math
A biased coin is tossed 5 times where p(t) = .6. determine the probability that if you have 2 tails, you have 3 tails.
May 25, 2013 by Ann

math
Determine the equation of the lines perpendicular to the given lines and passing through the given points:(a)y-5x+3=0;(3,2) (b) y=8-7x;(-3,-4)
April 19, 2014 by Kevo

maths
Determine the length and breadth of a rectangle if the length is 3cm less than twice the breadth, and the perimeter is 18 .
May 5, 2014 by anonymous

maths
Determine the length and breadth of a rectangle if the length is 3cm less than twice the breadth, and the perimeter is 18 .
May 9, 2014 by anonymous

Algebra 2
Given a point (-2,5), determine a point that satisfies the specified symmetry. 1.)Origin 2.)y-axis 3.)x-axis 4.)y=x
September 18, 2014 by Alicia S.

Algebra
Given a point (-2,5), determine a point that satisfies the specified symmetry. 1.)Origin 2.)y-axis 3.)x-axis 4.)y=x
September 19, 2014 by Alex

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