1. physics

    Find an expression for the energy densityin terms of stress and strain.

    asked by rahul on January 2, 2014
  2. science

    what energy source can generate most of my home's electricity day and night????

    asked by Young Trippy Lil G on April 4, 2017
  3. chemistry

    how to calculate nuclidic mass of 3He when its binding energy is 0.76 MeV

    asked by nithya on February 23, 2015
  4. chem 111

    state fist ionization energy of calcium high than pottatium

    asked by Anonymous on March 25, 2017
  5. Physics

    What electric field strength would store 17.5J of energy in every 9.00mm3 of space?

    asked by Icy on September 7, 2014
  6. science

    Amount of energy flowing through an area, influcences how far away a sound can be heard

    asked by Wyatt on March 24, 2010
  7. Chemistry

    How much heat energy, in kilojoules, is required to convert 63.0g of ice at −18.0 ∘C to water at 25.0 ∘C ?

    asked by Rebecca on January 26, 2014
  8. ENVIRONMENTAL SCIENCE

    DESCRIBE THREE COMMON CHALLENGES WITH MANAGING NONRENEWABLE ENERGY RESOURCES

    asked by JASON on November 20, 2007
  9. Chemistry 3A

    what is the maximum number of electrons that may occupy the second electron energy level?

    asked by Gurjot on December 10, 2012
  10. Brains!

    Our brains can’t waste energy recording everything in detail. a) True b) False

    asked by Anonymous on July 31, 2017
  11. science

    umm is all light energy from the sun?Explain

    asked by emily on October 30, 2012
  12. chem

    How much energy in joules does it take to raise the temperature of 255g of water by 12.5 C? pls help!

    asked by alissa on March 10, 2019
  13. science

    which kind of energy transformation occurs during skydiving. plz i need answer

    asked by need help now on March 26, 2018
  14. Science

    Explain how adding or removing energy affects particles motion?

    asked by Cassie on October 28, 2010
  15. math

    in human most of the energy needed for life activities come from carbon dioxide

    asked by Pavleen on August 30, 2010
  16. phy 111

    what are the dimension of power(time rate of change of expending energy)

    asked by ugo on October 14, 2013
  17. Science

    Calculate the Mass of C6H12O6 needed ot generate 2575 KJ of energy

    asked by Thomas on February 10, 2011
  18. Chemistry

    The population ratio between two energy levels separated by 1.4 ✕ 10−22 J is 0.69. What is the temperature of the system?

    asked by Anonymous on November 28, 2015
  19. science

    Electric Charge A. Radiation B. Electricity C. Discovery D. Potential Energy I think either b or d but i'm not sure which on is right.

    asked by Dylan on December 9, 2015
  20. Chemistry

    In calcium, the electron configuration is 2-8-8-2. Why does the 3rd level have more energy than the 2nd if they're both 8?

    asked by danny123 on November 13, 2010
  21. science

    Blank have vibrating particles that don't have enough energy to move out of position?

    asked by zane on September 7, 2010
  22. physics

    How much heat energy must be added to a 3.0 cm × 3.0 cm × 3.0 cm block of aluminum to raise its temperature from -50∘C to 50∘C?

    asked by Anonymous on February 10, 2017
  23. Chemistry

    How much energy is associated with a photon in the gamma ray region of the spectrum with a frequency of 6.6*10^5s^-1

    asked by Rob on October 31, 2011
  24. physical science

    What is the energy transformation present when the carbon compounds in wood are burned?

    asked by kt1993 on March 18, 2009
  25. ap chemistry

    How can I calculate the exothermic lattice energy when all I am given is the compound formula LiF?

    asked by Claudia on December 10, 2007
  26. Chemistry

    The population ratio between two energy levels separated by 1.4 ✕ 10−22 J is 0.69. What is the temperature of the system?

    asked by Anonymous on November 27, 2015
  27. chemistry

    How many kilojoules of heat energy does it take to change the temperature of 50 grams of water from 20 C to 24 C?

    asked by g on July 14, 2011
  28. chemistry

    What number of electrons fit into energy levels higher than the third level?

    asked by madeline on November 9, 2009
  29. physics

    explain the input energy and out put energies of two kitchen machines

    asked by AMY on March 23, 2014
  30. chemistry

    is energy considered a chemical reaction that is important to a healthcare professional

    asked by kathyann on June 29, 2011
  31. Science

    The binding energy of election is 13.6 v .the loss of mass in formation of h atom is

    asked by Jinkal on September 24, 2016
  32. Chemistry

    What is the energy change per mole of lauric acid (C12H24O2) burned?

    asked by FS on July 29, 2018
  33. science

    which of the following cellular organelles is responsible for realising the energy contained in food

    asked by Dana on April 27, 2016
  34. Physics Help!!!

    With the energy needed to warm up some amount of water from 26°C to 44°C, how high could you lift it?

    asked by Molly on November 8, 2010
  35. physics

    If a hair dryer is rated at 900 W, how much energy does it require in 5 minutes?

    asked by Katelyn on October 25, 2016
  36. physics

    The energy of the em waves is of the order of 15 kev.to which part of the spectrum does it belong?

    asked by Princy on January 18, 2016
  37. science

    How does the temperature of 33.0 g of graphite change when it absorbs 350 J of thermal energy?

    asked by Mary on November 10, 2014
  38. Physics

    Does the axis system chosen affect the magnitude of potential energy? I say yes

    asked by Harold on March 11, 2009
  39. Health Physics

    The human body is 20-25 percent efficient. In what form is energy lost?

    asked by Shannon on January 22, 2010
  40. Science

    in plants the process that happens when sugars break down and give off energy is called

    asked by Brian on September 8, 2010
  41. Chemistry

    Does fission store or create energy. answered the duplicate question.

    asked by Aj on March 3, 2007
  42. physics

    how much energy was released by a 60 kg cannon shooting an 8 kg projectile horizontally at 50m/s?

    asked by michael on January 27, 2011
  43. Chemistry

    What energy is associated with a photon in the infared region of the spectrum having a frequency of 4.5*10^12s^-1

    asked by Fred on October 31, 2011
  44. Science

    What is the value of resource conservation and what are some strategies? What are some alternative energy sources that could become more mainstream?

    asked by Anonymous on January 9, 2013
  45. Chemistry

    The population ratio between two energy levels separated by 1.4 ✕ 10−22 J is 0.69. What is the temperature of the system?

    asked by Anonymous on November 29, 2015
  46. Physical science

    Calculating the total energy required to break NH3 bond?

    asked by Bucie on January 23, 2011
  47. Science 6th Grade

    Light, XRays, and radio waves contain _____________ with different amounts of energy.

    asked by David on March 14, 2010
  48. psychology

    when physical energy has resulted in aresponse in a sense organ, it is clear that

    asked by sam on December 27, 2011
  49. Science

    A basketball is dropped from a height of 2m and has a rebound of only 1.5m. what happened to that energy that was lost?

    asked by Bianca on March 26, 2015
  50. 5th grade science

    blank a type of material that tries to prenent the flow of thermal energy.

    asked by brittany on November 15, 2010
  51. thermodynamics statistical machenics

    For copper, take N/V =8.5×10^28m^-3, h=6.62×10^-34Js, and me =9.1×10^-31kg to calculate Fermi energy.

    asked by gourav on March 26, 2015
  52. chemistry

    which of the following has highest binding energy (nuclear chemistry) Fe-56 , O-16 , H-3 , U-235 and explain why

    asked by ahmed on January 15, 2016
  53. Science

    How much energy is needed to raise the temperature of 2.0kg of aluminium by 30oc

    asked by Anonymous on September 29, 2016
  54. True/False question

    When phosphate groups are joined together to make ATP, it gives off energy. Is this true?

    asked by Terrie on April 16, 2009
  55. physics

    how much energy is needed to raise the temperature of 0.05kg of water from 20-60 degrees

    asked by Anonymous on January 17, 2019
  56. physics

    explain the input energy and out put energies of two kitchen machines

    asked by AMY on March 24, 2014
  57. chemistry

    Calculate the energy released when 200 g of ethanol are cooled from 30.0 oC to 5.00 oCeased when

    asked by Anonymous on July 17, 2010
  58. Chemistry

    What is the wavelength of light (in nm) if the energy of the wave is 1.33x 10^-19 J? How do I work this problem out????

    asked by Evin on April 24, 2016
  59. chemistry

    How much energy is required to increase the temperature of 755 g of iron from 10 ̊C to (40,679 J)?

    asked by monica on February 16, 2017
  60. Ecosystems

    how much energy is lost 4rm producers to secondary consumers? I think between 80 and 90 percent.

    asked by Sherrie on July 5, 2010
  61. chemistry

    what is the energy released when 0.5 grams of uranium 235 under goes a fission reaction?

    asked by ben on April 30, 2019
  62. Chemistry

    Which metal ion produces the light with the highest energy? a. Na+ b. Ca+ c. K+ d. Ba2+

    asked by R. on October 26, 2012
  63. chemistry

    How do you calculate the energy released when 1 mole of ethanol, C2H5OH, is burned?

    asked by william on November 7, 2010
  64. Health

    2. Which main body system is responsible for breaking down food for energy?

    asked by Hippo on January 29, 2018
  65. Chemistry

    The population ratio between two energy levels separated by 1.4 ✕ 10−22 J is 0.69. What is the temperature of the system?

    asked by Anonymous on December 1, 2015
  66. physics

    how much work is required to give an object 600 J of potential energy?

    asked by lisa on May 31, 2012
  67. Chemistry

    The population ratio between two energy levels separated by 1.4 ✕ 10−22 J is 0.69. What is the temperature of the system?

    asked by Anonymous on December 1, 2015
  68. science

    what is the amount of light energy reflected back into space called?

    asked by adam on November 24, 2008
  69. physics

    what device could use th earth's magnetic felds to produce energy and how it would work?

    asked by mary on October 12, 2012
  70. physics

    Can the gravitational potential energy of a baseball ever be negative? Yes No Explain without using a formula.

    asked by mathew on February 3, 2015
  71. Chemistry

    can the energy originally stored in gasoline be traced to rotating wheels?

    asked by Jonny on February 3, 2008
  72. Chemistry

    What is the final temperature when 750 J of energy is added to 9.0 g of ice at 0.0 degress C?

    asked by Alex on April 19, 2011
  73. science

    A lamp consumers 1000 J of electrical energy is 20 seconds .What is its power?

    asked by gracy on March 11, 2019
  74. 5TH GRADE SCIENCE

    where in nature could you find a source of the same energy as that provided by batteries?explain

    asked by jackie on November 4, 2009
  75. Physical Science

    What is my potential energy if I weigh 60kg and I jump 3 meters in the air?

    asked by Anonymous on February 5, 2011
  76. sci

    what would be some environmental problems that would call for energy conservation i'm drawing a blank can some help please

    asked by biggie on November 1, 2009
  77. Science please help

    What form is the energy turned into by a mitochondria? I need help with this question. thanks god bless

    asked by Karen on March 21, 2009
  78. Chemistry

    what effect does a catalyst have on.. a) energy of the reactants b) enthalpy change of the reaction

    asked by Zac on April 27, 2009
  79. physics

    What would the gravitational potential energy be if the bucket were raised six times as high?

    asked by George on March 11, 2013
  80. Physics

    A photon a. is a quantum of light b. is a wave c. means bundle of energy(I think it's this one)

    asked by Max on May 11, 2018
  81. Simple science Question #3

    Is this false?? When phosphate groups are joined together to make ATP, it gives off energy.

    asked by Terrie on April 17, 2009
  82. respiration/releasing energy

    Does respiration release more energy from 1 gram of fat than from 2 grams of glucose?

    asked by Nadia on February 27, 2007
  83. English - ms. sue

    ms. sue i also want to say this about leaves that they draw energy from their surroundings but how i make that relate with me?

    asked by Mohammad on April 22, 2012
  84. Chemistry

    How much energy is released when 54.0 g of H2O are condensed from a gas at 115°C to a liquid at 65°C?

    asked by TS on October 23, 2018
  85. physics

    if it costs 4.5 to 7.5 cents per kilowatt-hour (wind energy) what is the price per kW?

    asked by Tim on March 26, 2008
  86. diet

    what are the typical nutritional and energy values of the 8 main food groups

    asked by Elizabeth on January 20, 2008
  87. Science

    Which energy conversion allows the lamp to light up in your room? plz quick

    asked by Prarthana on November 23, 2017
  88. Science

    If neons atomic number is 10 how many electrons are in the outer energy level?

    asked by Melissa on June 10, 2010
  89. science

    describe the energy changes that takes place when a baseball bat is swung

    asked by Anonymous on November 13, 2009
  90. science

    why is the use of fossil fuels not a long term solution to the worlds energy needs.

    asked by Rhonda on February 25, 2017
  91. science

    when a substance is heated energy is released/ absored. in chemisty this is called an

    asked by jomecia on February 13, 2013
  92. biology

    the amount of energy needed to start two reactants to form a product is?

    asked by lisa on February 28, 2016
  93. chemistry

    why is the energy difference for t-butylcyclohexane significantly greater than the corresponding value calculated for methylcyclohexane?

    asked by tony on October 13, 2011
  94. chem please help !!!!

    what might one do to verify that the global strain energy minimum has been identified for a compound?

    asked by jon on October 13, 2011
  95. chemistry

    Using data from this chapter, calculate the change in energy expected for each of the following processes Rb(g) + Br(g) Rb+(g) + Br -(g)

    asked by mel on December 7, 2007
  96. science

    Where in nature could you find a source of the same energy as that provided by batteries? explain

    asked by Jeremy on October 24, 2012
  97. Chemistry

    How much energy would be released when 675 grams of steam is condensed to water

    asked by Ashley on April 11, 2013
  98. Chemistry

    energy required to raise the temp of H2O from -15C to 125c

    asked by Luke on March 26, 2012
  99. Science

    Why a match that has been lit will not re-light? please include the energy source in your answer.

    asked by Aurora on December 16, 2007
  100. chemistry

    Explain the relation between muscles, ATP energy, and the calcium ion.

    asked by meme on August 15, 2011

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