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July 28, 2014

Search: A force of 5.0 is required to stretch a certain spring by 1.2 .How far must this spring be stretched for its potential energy to be 0.015 ?

Number of results: 24,959

College Physics
Two long, straight, parallel wires 8.0 cm apart carry currents in opposite directions. Use the right-hand source and force rules to determine whether the forces on the wires are attractive or repulsive. a)Repulsive b)Attractive If the wires carry equal currents of 4.0 A, what ...
February 19, 2010 by Lanise

Physics
A certain "brand-new" (never-used) 9.0 volt cell contains 40mC of charge. The Electric energy "stored" in the cell amounts to about (___) joules. 0.0 0.06 37.5 .36 60x10^-4 I'm not too sure how to figure this problem out. I initially thought 40/9, but the answer was not one of...
February 5, 2011 by Amber

English
I'd like you to explain to me the use of the subjunctive after certain verbs such as "recommend". Where can I find further examples on line? 1)Hamlet asks Horatio to tell his story recommending that Fortinbras, prince of Norway, be elected King and then he dies. recommend ...
November 23, 2011 by Henry2

Physics
A 290 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.6 N/cm. The block becomes attached to the spring and compresses the spring 10 cm before momentarily stopping. (a) While the spring is being compressed, what work is done on the block by...
October 5, 2009 by Mario

Physics
A spaceship of mass m travels from the Earth to the Moon along a line that passes through the center of the Earth and the center of the Moon. (a) At what distance from the center of the Earth is the force due to the Earth five times the magnitude of the force due to the Moon? ...
October 6, 2009 by jawn

physics
A 12 kg block is released from rest on a 30 degree fricitonless incline. Below the block is a spring that can be compressed 2 cm by a force of 270 N. The block momentarily srops when it compresses the spring by 5.5 cm. a) How far does the block move down the incline from its ...
January 5, 2007 by Jamie

ECONOMICS
PLEASE HELP ME WITH THESE!!!!!!!! 1) If the price of a product produced in a competitive market increases, which of the following is most likely to occur in the labor market for workers who produce the product? A) the demand for labor and the number of workers hired both ...
July 19, 2012 by Booker Perry

english
Which of the following topics relate directly to a work's authenticity? 1)believability of characters 2)the appeal of a certain guitar riff 3)sincerity expressed in a love song 4)the likely appeal to all teenagers 5)the way the setting matches the mood of the plot i put all of...
November 1, 2010 by danny

Physics
A figure skater spins on the ice, holding two weights a distance d from the axis about which he is rotating. At a certain time, he pulls these weights toward his body as shown, causing his rotational inertia to decrease by a factor of 2. How does this affect the maximum ...
March 19, 2011 by John

physics
(a) Just for fun, a person jumps from rest from the top of a cliff overlooking a lake. In falling through a distance H, she acquires a certain speed v. Assuming free-fall conditions, how much farther must she fall in order to acquire speed 2v? Express your answer in terms of H.
January 20, 2012 by Natasha

Calculus - Compound Interest
Recently, a certain bank offered a 10-year CD that earns 8.93% compounded continuously. a) If $20,000 is invested in this CD, how much will it be worth in 10 years? Ans: I used the formula A = Pe^(rt) to get the answer $48,848.92 b)How long will it take for the account to be ...
November 3, 2013 by Cal

law and ethics in allied health
a formulary is a list of? a.procedurals steps to resolve ethical conflicts in the medical office b.approved drugs for which the insurance company pays c.proper behaviors and manners for a certain community d.employes covered by an employers health insurance plan my answer is b
November 10, 2013 by susue

Physics
*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we are fishing for ...
October 8, 2006 by Justin

Chemistry
Given the following chemical equation: 3 Cu + 8 HNO3 = 3 Cu(NO3)2 + NO + 4 H2O. How many moles of HNO3 are required to react with 6 moles of Cu?
July 14, 2008 by Persia

physics
A heat transfer of 8.7 multiplied by 105 J is required to convert a block of ice at -12C to water at 12C. What was the mass of the block of ice?
November 22, 2008 by lyd

Chemistry
Assuming the mass of 5% Acetic Acid is 1.0g/mL, what volume of acetic acid is required to neutralize 25.0mL of 0.10M NaOH?
November 12, 2009 by EDK

science
how much energy is required to raise 5 kg of silver 36 degrees celcius with a specific heat of 234 j/kg degrees celcius
November 30, 2010 by justin

Chemistry
How much heat is required to raise 75 grams of 0 degree Celsius ice to 135 degree Celsius steam?
March 31, 2011 by Lizabeth

Chem 100
at 1 atm how much energy is required to heat 67 grams of H2O(s) at -22 degrees C to H2O(g) at 159 degrees C
May 1, 2011 by Kristin

Chemistry
Acetic acid has a pK of 4.8. How many mL of 0.1M acetic acid and 0.1M of sodium acetate are required to prepare 1 liter of 0.1M buffer solution having a pH of 5.8?
September 14, 2011 by Barb

chemistry
An HNO3 solution has a pH of 3.04. What volume of 0.015 M LiOH will be required to titrate 89.0 mL of the HNO3 solution to reach the equivalence point?
January 5, 2012 by Anonymous

Chemistry
How much heat energy is required to raise the temperature of 4.50 liters of water from 36 degrees celcius to 44.6 degrees celcius?
January 15, 2012 by carol

Chemistry
What mass of oxalic acid dihydrate , H2C2O42H2O, is required to prepare 220.0 ml of a 1.28 M solution of oxalic acid ?
February 22, 2012 by Cynthia

physics
What amount of heat is required to increase the temperature of 75.0 grams of gold from 150C to 250C? The specific heat of gold is 0.13 J/gC.
March 19, 2012 by Anonymous

Chemistry
Calculate the amount of heat required to take 3.00kg of ice at -10 degrees Celsius to 115 degrees celsius.
April 25, 2012 by Ahmad

Applied Math
If a scale drawing has a ratio of 1.5 inches to 20 feet,how many inches would be required for an actual distance of 75 feet?
April 26, 2012 by Shannian

chemistry
A 0.115-L sample of an unknown HNO3 solution required 31.1 mL of 0.100 M Ba(OH)2 for complete neutralization. What was the concentration of the HNO3 solution?
July 7, 2012 by Anonymous

chemistry
how many joules are required to heat a frozen can of juice (360 grams) from -5 degrees Celsius to 110 degrees celsius
November 5, 2012 by jackie

Stoichiometry
How many grams of oxygen are required to completely burn 85.6 grams of methane (CH4)? CH4 + O2 → H2O + CO2
November 14, 2012 by Mike

Chemistry
How much heat is required to raise the temperature of a 125g block of iron from 17.5 degrees celcius to 82.3 degrees celcius?
November 27, 2012 by Maryam

PLEASE HELP ME IN THIS PHYSICS PROBLEM
A heat transfer of 9.5 x 10^5 J is required to convert a block of ice at -15C to water at 15C. What is the mass of the block of ice?
January 14, 2013 by JOHN

Chemistry
titration of a 50.00mL of KOH required 175.00mL of 0.0150M acetic acid, what is the Molarity of KOH solution
April 8, 2013 by Shay

Chemistry.
the titration of 25cm^3 of a zinc solutn required 23 82cm^3 of 0.0105molar EDTA solutn. Calculate the conc of zinc in g/dm^3.
June 9, 2013 by Ade oba naim

Chemistry 109
How many joules of heat are required to raise the temperature of 225 g of water from 42 degree celcius to 75 degree celcius?
July 22, 2013 by Chrystal Kilgore

Chemistry
A 0.110-L sample of an unknown HNO3 solution required 52.1 mL of 0.150 M Ba(OH)2 for complete neutralization. What was the concentration of the HNO3 solution?
November 9, 2013 by Lori

Math Ratio
If 8 pounds of hamburger feeds 5 people for 7 days, how much meat is required to feed 7 people for 8 days?
January 31, 2014 by Sarah

Chemistry
The Haber process is used to synthesize ammonia from hydrogen and nitrogen. How much hydrogen is required to produce 42.8 kg of ammonia?
February 9, 2014 by Jesus

chemistry
A 25.0-mL sample of H2SO4 is neutralized with NaOH. What is the concentration of the H2SO4 if 35.0 mL of 0.150 M NaOH are required to completely neutralize the acid?
March 2, 2014 by tiya

math - marginal analyis
A factory's output is Q=600K^1/2L^1/3 units, (read 600 x K to the 1/2 power x L to the 1/3 power). K denotes capital investment and L denotes the size of the labor force. Estimate the percentage increase in output that will result in a 2% increase in the size of the labor ...
August 13, 2006 by becky

algebra
if 7 times a certain number is subtracted from 6, the result is 5 times the number. what is the number?
October 4, 2010 by mike

Probability
Could you please explain how to do this question. Suppose that a certain candidate is running in a city election. A recent poll of 500 randomly chosen voters concludes that 60% of the voters prefer this candidate. Determine the probability that the candidate will get less than...
March 28, 2010 by Sandy

math
a certain mountain has an elevation 19580 feet in 1907 the glacier on its peek covered 8 acres by 2002 this glacier had melted to 1 acre assume the glacier melted at a constant rate each year find this yearly rate
January 27, 2013 by max

biology
This question consisted of a pedigree which involves certain inbred individuals which you are going to identify. The inbred coefficient is for one of the first cousins named Stormy is F = 0.08. An individual called Shady is a parent. Question: Is Shady inbred? How did you ...
July 14, 2013 by azonto

ap chem
ok, i'm given: Ethylene Glycol C2H6O2 is the main ingredient in antifreeze. density of pure EG: 1.132 g/mL Anti-freeze is 32% by volume EG I have to find: Volume of Eg in 1 L Mass of Eg in 1 L & the Volume of "solvent" in 1 L Can someone help me? and give me some tips? For ...
February 27, 2011 by dylan

science
Phase changes of water 1. is enrgy required for each phase change 2. Can both liguid water and steam exist at 100c
October 22, 2007 by bella

Engineering
A receiver requires 10 mW as input power. If all the system losses add up to 50 db, then how much power is required from all the source ?
September 1, 2008 by Rita

Medical Transcriptionn
2 part question: When must a new medical employee be trained in privacy practices? What is required if an employee does not comply?
June 12, 2009 by Hope

physics-7
A spaceship travels 1220 km with a constant uniform acceleration. How much time is required for the acceleration if the spaceship increases its speed from 11.1 km/s to 11.7 km/s ?
September 16, 2009 by NoNo100

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
November 2, 2009 by molly

science
A 6.2 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.41 m above the counter?
September 3, 2010 by ashley

science
A 6.2 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.41 m above the counter?
September 3, 2010 by ashley

Chemistry
Calculate the amount of heat (in kJ) required to convert 87.5 g of water to steam at 100C. (The molar heat of vaporizaion of water is 40.79 kJ/mol.)
December 1, 2010 by MC

Chemistry
The molar heat of solution of NH4NO3 is 25.7 kJ/mol. How much heat (in kJ) would be required to dissolve 20 grams of NH4NO3 in water?
December 14, 2010 by Hannah

science
how much energy is required to obtain superheated steam at 115 degrees celcius from 25 grams of water at 10 degrees celcius?
December 16, 2010 by Tyler

physics
How many mL of orange juice would be required to get the recommended daily allowance of 60 mg of vitamin C? (Concentration of vitamin C is .011 moles/L in 5.0 mL of juice).
May 4, 2011 by Seth

chemistry
Calculate the volume of the specified titrant required to neutralize 35 ml of .4 M NaOH. Titrant: 0.75 M H2SO4 [2NaOH + H2SO4 2H2O + Na2SO4]
July 24, 2011 by luv2swim

chemistry
How many moles of elemental chlorine (Cl2) is required to have the same number of atoms as two moles of of elemental phosphorus (P4)
August 5, 2011 by Anonymous

physics
A 4.5 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.55 m above the counter?
September 17, 2011 by kaira

science
A 4.3 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.43 m above the counter?
September 24, 2011 by Anna

math modeling
Determine the annual interest rate r required for an investment with continuous compound interest to yield an effective rate of 9.94%.
October 25, 2011 by math

chemistry
How much heat is required to warm 250.4 g of water from 22.6 C to 75.8 C given that the specific heat capacity of water is 4.184 J/gx degrees C?
November 3, 2011 by Teresa

Chemistry
Calculate the volume of concentrated reagent required to prepare the diluted solutions indicated: (a) 18 M H2SO4 to prepare 225 mL of 2.0 M H2SO4 (
December 21, 2011 by Annette

Chemistry
Determine the volumes of 1 M acetic acid and 1 M NaOH required to make a 200mL 0.1 M buffer with a pH of 5.5. (Assume the pKa of acetic acid is 4.76).
January 15, 2012 by Rachel

science
A 5.8 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.57 m above the counter?
February 4, 2012 by vanessa

chemistry
How many grams of CaO (56.08) are required for complete reaction with HCl (36.46) in 275 mL of a 5.90 M HCl solution? CaO + 2HCl --> CaCl2 + H2O.
February 22, 2012 by Anonymous

chem
How much energy (in Joules) is required to heat 13.48 g of water from 10.5 oC to 46.2 oC ? Use 4.184 J/goC as the specific heat capacity of water.
March 26, 2012 by emily

Chemistry
How much heat is required to raise the temperature of a 35.0g block of aluminium from 125 degrees celcius to 322 degrees celcius?
November 27, 2012 by Maryam

chemistry
What mass of lead (ii) trioxonitrate(v) would be required to yield 9g of lead(ii)chloride on the addition of excess sodium chloride(pb=207,N=14,O=16,Na=23,cl=35.5)
January 20, 2013 by chi

Chemistry
What quantity of heat is required to flow into 1.50 g of water at 18.0 degrees Celsius that is heated in an electric kettle to 70.0 degrees Celsius?
April 10, 2013 by Anonymous

Math
Determine the minimum number of students with scores of 90 required to have the class average over 75. Score 60,70,80,90. Number of students 7, 3, 8, ?
March 7, 2014 by James B.

Science
How many minutes are required for a radio signal to travel for Earth to a space station in Mars if the planet Mars is 7.83 x 10 to the 7th km from Earth?
March 20, 2014 by Mark

chemistry
what mass (in grams) of solid potassium permanaganate is required to prepare 250mL of a 0.02 M of potassium permanaganate solution?
September 23, 2009 by Hannah

chemistry
what mass (in grams) of solid potassium permanaganate is required to prepare 250mL of a 0.02 M of potassium permanaganate solution?
September 23, 2009 by Hannah

PHYSICS
WHAT ARE THREE THINGS ARE REQUIRED TO PRODUCE VOLTAGE? THESE THREE THINGS ARE THE FUNDAMENTALS OF HOW AN ELECTRICAL GENERATOR WORKS.
April 20, 2010 by PHYSICSHELP

CHEMISTRY
The specific heat capacity (cp) of lead is 0.13 J/g C. How much heat (in J) is required to raise the temperature of 15 grams of lead from 22 C to 37 C? a. 2.0 b. -0.13 c. 0.13 d. 29
May 9, 2010 by GRACE

CHEMISTRY
The specific heat capacity (cp) of lead is 0.13 J/g C. How much heat (in J) is required to raise the temperature of 15 grams of lead from 22 C to 37 C? a. 2.0 b. -0.13 c. 0.13 d. 29
May 9, 2010 by GRACE

Physics
What three things are required to produce voltage? These three things are the fundamentals of how an electrical generator works.
May 17, 2010 by MW

Chemistry
When 25.0 g of ethanol vapor condenses, 23.6 kJ of heat is released. How much heat is required in kJ to vaporize 254 g of ethanol?
October 13, 2010 by Jordin

chemistry
How much heat is required to warm 1.60 L of water from 26.0 degree C to 100.0 degree C? (Assume a density of {1.0 g/ml for the water.)
October 18, 2010 by Mely

chemistry
How much heat is required to warm 1.30 L of water from 30.0 degrees C to 100.0 degrees C? (Assume a density of 1.0 g/mL for the water.)
October 18, 2010 by Mely

chemisty
A 5.10-g sample of iron is heated from 36.0 C to 75.0 C. The amount of energy required is 89.5 J. the specific heat capacity of the sample of iron is?
March 5, 2011 by emily

UNP
HOW MANY CALORIES ARE REQUIRED TO HEAT OF EACH OF THE FOLLOWING FROM 15 DEGREE CELSIUS TO 65 DEGREE CELSIUS? A. 30 G OF Aluminum b. 20 g of platinum c. 35 g of water
March 16, 2011 by Dangadang

Chemistry
Exactly 23.6 ml of a 0.131 N HCl solution was required for complete neutralization of 25.0 ml of an NaOH solution.What was normality of the NaOH?
June 25, 2011 by Rajan Khare

CHEMISTRY
AIR CONTAIN 20% oxygen by volume . the volume of air required to oxidise 1gram CNG AT STP WILL BE WHAT
August 16, 2011 by Anonymous

child day care
of the forms used in a child care program which of the following would be required for the children?
October 18, 2011 by laura

chem
What volume of a 8.50M Na2CO3 solution would be required to prepare 220.00mL of a 8.20%w/v Na2CO3 solution?
November 29, 2011 by darren

Chemistry
How much heat is required to raise the temperature of a 65-g sample of water from 32 degrees celsius to 65 degrees celsius
February 11, 2012 by Lisa

Chemistry
What volume will be required to contain a mixture of 0.547 mol of N2 and 0.547 mol of O2 at 1.11 atm and 22.1 degrees celsius?
March 20, 2012 by Harry

Chemistry
Calculate the amount of energy required to change 32.8 grams of BF3 from -32 degrees celsius to 56 degrees celsius.
April 3, 2012 by Faith

Physics
How much heat is required to raise the temperature of a 4.3-kg block of steel by 48 K? (The specific heat of this steel is 450 J/kg K.)
July 31, 2012 by Sierra

chemistry
if the heat of combustion of glucose is -2808 kJ/mol, how many grams of glucose are required to supply 1650 kJ of heat?
November 12, 2012 by Anonymous

CHEMISTRY HWK MAKES NO SENSE
How many grams of C are required to make 464.99 grams of this compound? compound= C3H8
November 29, 2012 by HELP

Chemistry105
A 10.00 mL volume of sulfuric acid required 23.65 mL of NaOH solution for complete neutralization. What is the molarity of the acid solution?
December 18, 2012 by Mira

chem
how many calories of heat energy are required to warm 250ml of water from 35 degrees celsius to 64 degrees celsius?
April 1, 2013 by Denise

chemistry
How many grams of calcium carbonate are required to prepare 50.0 grams of calcium oxide? CaCO3-> CaO + CO2
March 11, 2014 by Kendra

chem
Consider the following reaction. 2 NO(g) + 2 H2(g) N2(g) + 2 H2O(g) An equilibrium mixture of this reaction at a certain temperature was found to have [NO] = 8.1 10-3 M, [H2] = 4.1 10-5 M, [N2] = 5.3 10-2 M, and [H2O] = 2.9 10-3 M. What is the value of the equilibrium constant...
April 15, 2011 by Rebekah

Physic
A certain object with a surface temperature of 150 degree C is radiating heat at a rate of 200 J/s. To triple the object's rate of radiation energy, what should be its surface temperature in Celsius?
May 7, 2011 by Anonymous

Mathematics
The value of a certain fraction becomes 1/5 if one is added to its numerator. If one is taken from its denominator, its value becomes 1/7. Find the fraction by setting up a pair of simultaneous equations and solving them
March 13, 2012 by Jiskhaa

Math-helpppppp
1)when a certain polynomial is divided by x - 3, the quotient is x^2+2x-5 and the remainder is -3. what is the polynomial 2) Find each quotient and remainder. Assume the divisor is not equal to zero. a)(2x^2+29x-x^3-40)/(-3+x) b)(6+7x-11x^2-2x^3)/(x+9) c)(x^3-2x^2+4x+150/(x^2+...
April 28, 2012 by sarah

Engineering science
A brick with a mass of 6kg is dropped vertically from a certain height.it takes 4,5 seconds for the brick to reach the ground.determine the ff.the height from which the brick is dropped and potential energy of the brick
March 8, 2014 by Peter

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