Sunday
March 1, 2015

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

Number of results: 38,837

chemistry
A student graphs the data from the experiment to determine how pH affects reaction rate and finds that the slope of a line through the data for pH = 7 is 5 seconds per absorbance unit. What has he/she done wrong?
January 27, 2011 by Billy

algebra
The principal P is borrowed and the loan's future value, A, at time t is given. Determine the loan's simple interest rate, r, to the nearest tenth of a percent. P=$130, A=171.60, T=4 years
February 4, 2011 by Anonymous

Science
We determine the structure of the Earth's core using ? deep mine shafts. satellite imaging. radar and sonar. seismic wave data. magnetic resonance imaging.
February 20, 2011 by Anonymous

physics
This is my lab project and i need help in how to start to solve this problem. Determine the buoyant force on a balloon(filled with air) as a function of depth. At what depth does neutral buoyancy occur.
March 18, 2011 by ami

Logic
Using truth tree decompostition, determine the consistency of the set of proposittions. Include line numbers and justifications, and recover the truth values if consistent. {A and B, ~B or C} Please help me on this one
May 9, 2011 by Alisha :)

chemistry
A 4.98 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25 kJ/°C. If the temperature rose from 29.5°C to 69.8°C, determine the value of ΔH°comb for aniline.
June 14, 2011 by Amber

Math
Q: A coule borrow Rs. 10,000 to buy a car. The loan agreement specifies that monthly payements are to be made for 4 years. The annual inttrest rate is 10%. Determine the monthly payments?
July 24, 2011 by REHAN

physics
A linear charge of nonuniform density (x) = 5.2 x C/m, is distributed along the x-axis from 4.9 m to 6 m. Determine the electric potential (relative to zero at infinity) of the point y = 8.6 m on the positive y-axis. Answer in units of V
September 24, 2011 by physics

physics
In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 8.49 m/s in 1.89 s. Assuming that the player accelerates uniformly, determine the distance he runs.
October 10, 2011 by abbie

criminal law
typically the chronological, ______ of a child is used to determine criminal responsibility rather than mental capacity. a. age b. well being c. health d. sanity im confused between A and D
October 26, 2011 by john

statistics
A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 4% margin of error at a 99% confidence level, what size of sample is needed?
November 27, 2011 by Livia

Physics
In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 11.1 m/s in 2.30 s. Assuming that the player accelerates uniformly, determine the distance he runs.
December 13, 2011 by K

chemistry
If the reaction Cl2 (g) + O3 (g) = Cl2O (g) + O2 (g) occurred in just two steps, what would be the overall order of the reaction be? a. 1 b. 2 c. 3 d. 4 e. not possible to determine from the information given i have absolutly no idea how to do this
February 27, 2012 by john117

Physical Science
A wooden raft 3 m long x 2 m wide x 20 cm thick floats on a freshwater lake. A) Determine the buoyant force? B) If the raft itself has a mass of 600 kg, how many 65-kg people could it support?
February 21, 2012 by Jessica

chem
CF4 how would you determine the molecular shape using vsepr? i got that it has 32 electrons and four bonds. im stuck on how to get the non bonding domains and shape and bond angle! thanks!
March 12, 2012 by skye

Accounting
On November 30, 2011, Constance purchased an apartment building for $750,000. Determine her cost recovery deduction for 2011 rounded to the nearest dollar? A. $0 B. $2,400 C. $3,413 is it B
March 19, 2012 by Billy

physics
three cables are pulling on an object which is in static equilibrium. If 2 of the forces have the same magnitude but are separated by a 32 degree angle, determine the magnitude and direction of the third force.
April 23, 2012 by Syd

statistics
What type of statistical information would I include in my report to determine our year-to-date performance of our division; example, mean, median, or standard deviation.
April 26, 2012 by jake

chemistry
SrH2 + 2 H2O ==> Sr(OH)2 + 2 H2 Determine the number of grams of strontium hydroxide (Sr(OH)2) produced when 10.0 g of hydrogen gas (H2) is also produced. (Your answer must have at least 3 significant figures.)
May 1, 2012 by ani

Chemistry
Consider the following reaction: 2NOCl(g) 2NO(g) + Cl2(g) Initially pure NOCl(g) is placed in a vessel at 3.00 atm. At equilibrium, 0.416% of the NOCl has decomposed. Determine the value for Kp.
May 13, 2012 by Andrew

Physics
A bus goes over the crest of a hill at 10 m/s and the radius of curvature of the hill is 15 m. Determine the force exerted by the car seat for a man of 75 kg. At what speed would you become weightless
May 18, 2012 by Del

trig
plot of land ABCD such that AB = 85m, BC = 75m, CD = 60m, DA = 50m and angle ACB = . Determine the area of the plot in hectares correct to two decimal places
May 27, 2012 by anonymous

Physics
An object is thrown upwards at an initial speed of 19.6 m/s from a height of 65m. Determine how long will take for the object to reach the ground (time of flight). what formula should i use?
August 29, 2012 by Anna

Physics
In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 9.9 m/s in 2.0 s. Assuming that the player accelerates uniformly, determine the distance he runs.
August 30, 2012 by Gary

Physics
A boat, having an initial velocity of 6.6m/s east undergoes an average acceleration of 2.2 m/s squared south for 2.5 s. Determine final velocity after the time interval (magnitute and direction)
September 30, 2012 by Laura

Statics
The right angle uniform slender bar AOB has mass m. Assuming a frely hinged pivot O, determine the magnitude of the normal force at A and the magnitude of the pin reaction at O.
October 16, 2012 by Margaret

physics
In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 5.17 m/s in 1.29 s. Assuming that the player accelerates uniformly, determine the distance he runs.
October 21, 2012 by Anonymous

pre-calc.
Answers for Determine The Minimum Distance From The Point (18,20) To The Line 5x+8y=120 Include: Graph, Algebra Of Any Equations, Algebra Of System, Set-up & Steps Of Final Calculations.
October 21, 2012 by Okzy

Maths
Determine how long in years it will take the value of a motor vehicle to decrease to 25% of its original value if the rate of depreciation based on the reducing balance method is 21% per annum?
February 7, 2013 by Lucas

chemistry
Calculate the enthalpy of atomization per unit volume for Rb. Express your answer in kJ/m3. Determine the volume (in mL) occupied at room temperature by 3.5e22 mercury (Hg) atoms in the liquid state.
March 23, 2013 by schoolgirl

physics
A particle with a +5.0 µC charge and a kinetic energy of 0.090 J is fired into a uniform magnetic field of magnitude 0.30 T. If the particle moves in a circular path of radius 3.0 m, determine its mass.
March 26, 2013 by erika

chemistry
Determine the radius of the largest atom that can be accommodated in the interstices of BCC iron (Fe) without stress. (Hint: the center of the largest site is at ½, ¼, 0; draw a unit cell - it helps.)
April 3, 2013 by adex

chemistry
Determine the radius of the largest atom that can be accommodated in the interstices of BCC iron (Fe) without stress. (Hint: the center of the largest site is at ½, ¼, 0; draw a unit cell - it helps.)
April 4, 2013 by adex

biology/chemistry
Determine the net ATP production from one molecule of acetyl CoA through the citric acid cycle and taking the products through oxidative phosphorylation?
April 17, 2013 by meg

chmistry
A 4.98 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25 kJ/°C. If the temperature rose from 29.5°C to 69.8°C, determine the value of ΔH°comb for aniline.
June 18, 2013 by love

chemistry
A thermometer scale is calibrated (marked off) in a degree Celsius from 1 oC to 50 oC. Determine how many significant figures should be used to express the outdoor temperature if the temperature is more than 1 oC and less than 10 oC: (A) 1 (B) 2 (C) 3 (D) 4
July 15, 2013 by Janaiby

Math
Nico squared some numbers and got these answers.Determine each number she squared, Explain your reasoning. a)49 (its 7)i know this one 7 X 7=49 b)1225 c)30 d)72 e)169 f)625 please help, it'll mean alot! :)
September 22, 2013 by Saru

Physics
A 0.02kg bullet collides with a 5.75kg pendulum. After the collision, the pair swings up to a maximum height of 0.386m. Determine the velocity of the bullet just before impact.
October 5, 2013 by xavier

Physics
A 0.02kg bullet collides with a 5.75kg pendulum. After the collision, the pair swings up to a maximum height of 0.386m. Determine the velocity of the bullet just before impact.
October 5, 2013 by xavier

Chemistry
Determine the minimum potential that must be applied to a proton so that, on interaction with a hydrogen atom, it can excite the ground state electron to a state of n=3 please tell steps in brief
October 12, 2013 by ss01

math
Six people enter a dart throwing tournament in which each person must play each of the others in the tournament exactly once. Determine the total number of games that will be played.
November 14, 2013 by junie w.

physics
A stone is projected vertically upward with a speed of 30m/s from the top of a tower of height 50m neglecting air resistance. Determine the maximum height reached from the ground
February 28, 2014 by ogboye

physics
the cheetah is is one of the fastest accelerating animals, for it can go from rest to 34.5 m/s in 5.00 seconds. if its mass is 106 kg, determine the average powee developes by the cheetah during the acceleration phase of its motion
March 7, 2014 by Angelia

Chemistry
a 2.500 g sample of a pure compound was analysed and found to contain 1.094 g of nitrogen.determine whether the compound is either NH4NO3 or NH4NO2 .show all by calculations.
March 18, 2014 by C'mphiwe

Physics
A uniform beam of length L = 8.00 m and weight 3.80 102 N is carried by two workers, Sam and Joe, as shown in the figure below. Determine the force that each person exerts on the beam.
April 1, 2014 by Joe

Physics
A uniform beam of length L = 8.00 m and weight 3.80 102 N is carried by two workers, Sam and Joe, as shown in the figure below. Determine the force that each person exerts on the beam.
April 2, 2014 by Joe

Physics
A uniform beam of length L = 8.00 m and weight 3.80 102 N is carried by two workers, Sam and Joe, as shown in the figure below. Determine the force that each person exerts on the beam.
April 2, 2014 by Joe

Physics
A uniform beam of length L = 8.00 m and weight 3.80 102 N is carried by two workers, Sam and Joe, as shown in the figure below. Determine the force that each person exerts on the beam.
April 3, 2014 by Joe

calculus-answer check
Determine the slope of the tangent line to the curve y=(x^2+3x)(x^2-2) at x=-1. I got 3 as my answer although I am not too sure that it's correct. I found the derivative of the function and then substituted -1 into the equation.
May 9, 2014 by Kim

physics
If I am standing on top of a building that is 350 ft. high and I throw a baseball off the roof at angle of 60 degrees, determine how long the ball is in the air as well as how far it lands from the building.
May 10, 2014 by Sophia

Physics
A stone projected vertically upward with a speed of 30ms from the top of a tower of height 50m neglecting the air resistance.determine the maximum height it reach from the ground
August 5, 2014 by Charles

physics
In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 11.0 m/s in 2.58 s. Assuming that the player accelerates uniformly, determine the distance he runs.
September 7, 2014 by S

science
As mentioned before, our asteroid is in the shape of a sphere and has a mass of 2000 kilograms. Determine the density (in grams per cubic centimeter) of this asteroid if its diameter is known to be 1.2 meters.
October 11, 2014 by stacy

science
Using the systematic method and information in the Appendices F and J (note that log value is given in Appendix J), determine [SCN-], [Hg2+], and [HgSCN+] at equilibrium when Hg(SCN)2(s) is dissolved in water.
November 4, 2014 by chris

Science
Science To determine the acceleration of an object moving in a straight line, you must calculate the change in its stored during each unit of A. Velocity. B. Time. C. Motion. ******* D. Deceleration Please help
February 14, 2015 by BUBBLES

Vectors
How did you get your answer? A plane is heading on a bearing of 200° with an air speed of 400 km/h when it is blown off course by a wind of 100 km/h from the northeast. Determine the resultant ground velocity of the plane.
February 22, 2015 by Amyy

DNA Lactase
Can anyone comment on my working out for the following question. position - - 1 2 3 4 5 6 7 8 9 - Nucleotide - - T A C T C G G A A - Write down the equivalent mRNA and hence work out the sequence of amino acid names coded in this part in the polypeptide produced you can assume...
March 11, 2007 by Freddo

Chemistry
Given 2Al2O3 (s) --> 4Al(s) + 3O2 (g) (standard enthalpy change= 3351.4 kJ) a) What is the heat of formation of aluminum oxide? How do I find heat of formation from standard enthalpy change? I know how to do it when I'm given enthalpy, but they aren't the same thing- ...
January 31, 2007 by Chris

Physics - Please help!
Ironman steps from the top of a tall building. He falls freely from rest to the ground a distance of h. He falls a distance of h/ 3 in the last interval of time of 1.1 s of his fall. Hint: First, compute the velocity when Ironman reaches the height equal to the distance fallen...
October 22, 2010 by Anonymous

REGENTS(PRACTICE)
A scientist wants to determine the best conditions for hatching brine shrimp eggs. In a laboratory, brine shrimp hatch at room temperature in glass containers of salt water. The concentration of salt in the water is known to affect how many brine shrimp eggs will hatch Design...
September 21, 2011 by hoover

Biology
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 ...
September 16, 2014 by Please help

Algebra
"A recent study determined that the distance employees at a pharmaceutical company in New Jersey commute to work each way is normally distributed with a mean equal to 13.4 miles and a standard deviation of 3.6 miles. Management has decided to give a year-end bonus to employees...
August 14, 2011 by Chelle

Question
If I join these clubs in high school will I make it to Ivy League Schools Computer Club Any student interested in computers will learn skills such as creating web designs and building PCs. Students will also have the opportunity to learn advanced techniques using computer ...
November 27, 2011 by Laruen

object oriented programming
We want to define a class clockType, to implement the time of day in a program. The time is represented as a set of three integers: one to represent the hours, one to represent the minutes, and one to represent the seconds. We also want to perform the following operations on ...
April 18, 2011 by sara

Math
The height h in metres above the ground of a projectile at any time t in seconds after the launch is defined by the function h(t)=-4t +48t +3 A.) Complete the square to write H in standard form b.) Find the height of the projectile three seconds after the launch c.) Find the ...
October 27, 2014 by Sarah

calculus
You work for the silver there is a home with a driveway 2 miles long extending to the house from a nearby highway. the nearest connection box is along the highway but 5 miles from the driveway. it costs the company $100 per mile to install cable along the highway and $140 per ...
February 15, 2011 by scott

Probability / Statistics
I was wondering if someone could check my work thanks so the question is like so: The time it takes for a pendulum to complete the one period is simplified by the formula: T=2 pi square root (L/g) Where g is the constant measuring 9.80655m/s^2 and L is the length of the ...
June 10, 2007 by z score!

social studies
A 150 years ago nearly 3/4 of the working people in this country worked on farms. By the beginning of the 1980s only 1/40 did. Clearly automation "destroyed" many farms jobs. But if technology were really eliminating work, we would expect unemployment . The reason most ex-...
September 8, 2013 by Anon

english
Can you check my grammar? should I remove the apostrophies in the following sentences? " The apostrophies in Gloria's name" Q1.Gloria has paid more than half of the cost of keeping up on her home, and her qualifying dependent. Q2.Gloria benefits by having lower tax rates, and ...
May 12, 2011 by icelocsgirl

chemistry
Aluminum reacts with sulfuric acid, which is the acid in car batteries. If 20.0 grams of Al is placed into a solution contain 115 gram of H2SO4, how many grams of hydrogen ga could be be produced? 2Al + 3H2SO4 ---> Al(SO4)3 + 3H2 20.0g/27 = .741 .741 X 3/2 = 1.11 1.11 X 2...
May 15, 2007 by mike

Last proof read
Sorry for bugging you guys.. But can someone proof read this paragraph. Ohio Sen. Rob Portman is the first Republican senator to endorse same-sex marriage. Portman changed his views on same-sex marriage once he learned his son is gay. " I want all my children, including my son...
April 3, 2013 by Blaze

english
One of the reform movements that arose during the "freedom's ferment" of the early nineteenth century was a drive for greater rights for women, especially in the political area. Women were heavily involved in many of the reform movements of this time, but they discovered that ...
February 9, 2015 by Robb4301

Financial Management
A small company was founded by 2 electronic engineers, Tom and Jessica, 15 years ago. The company manufactures integrated circuits to capitalize on complex mixed-signal design technology and has recently entered the market for frequency timing generators, or silicon timing ...
March 9, 2009 by Sandra

math
A straight road up a hill has a slope of 1/4. From the bottom of the hil to the top of the hill, the horizontal change is 80 m. Determine the height of the hill. I'm thinking that it's 80/4 = 20 m.. but I'm not 100% sure.
July 5, 2010 by CL

physics
consider a simple harmonic oscillation with m=0.5kg,k=10N/m and amplitude A=3cm,if the oscillation is released from rest at x=A when the clock is set to t=0,determine the position of the oscillation at t=2s
September 20, 2010 by kabelo

physics
A proton is projected in the positive x direction into a region of uniform electric field E = (-6.80 * 10^5 N/C at t = 0. The proton travels 6.80 cm as it comes to rest. (a) Determine the acceleration of the proton. thanks
March 27, 2011 by Rachel

physics
A proton is projected in the positive x direction into a region of uniform electric field E = (-6.80 * 10^5 N/C at t = 0. The proton travels 6.80 cm as it comes to rest. (a) Determine the acceleration of the proton. thanks
March 27, 2011 by Rachel

MATH:( Base systems?!
2. Determine the base- five representations for each of the given numbers. Remember that a numeral with no subscript is understood to be n base ten. a.47 b. 179 c. 354
July 9, 2013 by Kaitlin

math
Determine how many 1000 digit numbers A have the following property: When any digit of A, aside from the first, is deleted to form a 999 digit number B, then B divides A.
July 31, 2013 by Steven

math trigonometry
By making use of a sketch,determine the value of 10 secant theta plus 13sin theta. And 5tan theta minus 12 equal to zero. (0,90)
May 15, 2014 by rirhandzu

History Essay
How does this sound so far? It is the introduction to an essay about the history of Canada. The History of Canada The broad and beautiful country of Canada stretches from the Pacific Ocean in the west to the Atlantic Ocean in the east and form the Arctic Ocean in the north to ...
February 21, 2009 by Anonymous

Psychology
Discuss the prevalence and effects of Foetal Alcohol Syndrome (FAS) in South Africa with reference to either Erikson’s theory of socio-emotional development or Piaget’s theory of cognitive development. Identify at least one risk to normal socio-emotional or cognitive ...
August 23, 2010 by Cathy

Algebra Word Problem Help
A gardener has 40 feet of fencing with which to enclose a garden adjacent to a long existing wall. The gardener will use the wall for one side and the available fencing for the remaining three sides. If the sides perpendicular to the wall have length x feet, which of the ...
August 6, 2009 by Jeanna

Algebra Word Problem Help
A gardener has 40 feet of fencing with which to enclose a garden adjacent to a long existing wall. The gardener will use the wall for one side and the available fencing for the remaining three sides. If the sides perpendicular to the wall have length x feet, which of the ...
August 7, 2009 by Jeanna

physics
A 4.63-g bullet is moving horizontally with a velocity of +349 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
October 15, 2011 by riley

physics
A 4.63-g bullet is moving horizontally with a velocity of +349 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
October 16, 2011 by riley

physics
A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
November 4, 2011 by Meagan

physics
A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
November 4, 2011 by Meagan

phisics
A 7.45-g bullet is moving horizontally with a velocity of +348 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
November 4, 2012 by greg

Physics
A 7.45-g bullet is moving horizontally with a velocity of +348 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
November 5, 2012 by greg

physics
A 6.26-g bullet is moving horizontally with a velocity of +344 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...
March 27, 2014 by Anonymous

Chemistry
This is a three part problem I need help in figuring out pleaseI n each of the questions below you are going to determine a different type of balanced equation for the same reaction. Make sure your equations have the lowest whole number coefficients possible. Indicate the ...
October 10, 2012 by Melinda

Chemistry
This is a three part problem I need help in figuring out pleaseI n each of the questions below you are going to determine a different type of balanced equation for the same reaction. Make sure your equations have the lowest whole number coefficients possible. Indicate the ...
October 10, 2012 by Melinda

language arts
Which type of person is Merchant Lyte? A kind and generous B crass and sloppy C devious and manipulative D intelligent and hardworking Which lines from the novel best supports the answer to the previous question? A "He's sly" When merchants agreed not to import any English ...
December 10, 2014 by Ben

physical science
i have 25 examination quesions i need answered. can you help me? We can help you with some of them if you post them individually and show your own work or thoughts. We don't do exams for you here.
March 9, 2007 by cynthia

Biology
I was wondering if you could double check my work thanks! Kidneys play a major homeostatic role in regulating body fluids. Which would not be a reasonable inference? A.
March 13, 2007 by Nelson

math
solve the following system of equations algebraically or graphically for x and y: y=xsquare-6x+6 y-x=-4 For an algebraicc solution, show your work here. y=x^2-6x+6 y-x= -4 Let's substitute x-4 for y in the first equation. x-4 = x^2-6x+6 x^2 -7x + 10 = 0 (x-5)(x-2) = 0 x = 5 or...
August 12, 2007 by Tashanna

physics help
A 1000-kg car moving at 10 m/s brakes to a stop in 5 s. The average braking force is? when i work this out with the formula that you gave me, i get 2525 instead of 2000 N
October 17, 2007 by Soly

Business
What should an employer or Human Resource Manager do when they find drugs in someone car during a random search at work? What if the employee says it is not their?
December 7, 2007 by Jen

physics
How much work must be done to roll a metal safe, mass 116 kg, a distance of 15.0 m across a level floor? The coeffecient of friction is 0.050.
January 29, 2008 by mer

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