Most popular questions and responses by Science
  1. Science

    There is a theoretical protein called largeX that helps to stimulate growth of the body during adolescence. The promoter on the lrgX gene that codes for it is normally able to have a protein bind to it that promotes transcription called largene. Largene,

    asked on March 17, 2014
  2. physics

    A 13 N force with a fixed orientation does work on a particle as the particle moves through displacement . What is the angle between the force and the displacement if the change in the particle's kinetic energy is (a) +9.19 J and (b) -9.19 J?

    asked on October 17, 2012
  3. Mali

    Scientists are often eager to learn more about the world around them. What is this attitude called? A. curiosity B. honesty C. creativity D. ethics A?

    asked on September 12, 2016
  4. nature of science

    four forces are being applied to move an object to the left. Force 1 is pushing to the right at 200N. Force 2 is pushing to the left at 500N. Force 3 is pushing to the right at 100N. Force 4 is pushing to the left at 50N. What's the net force acting on

    asked on November 15, 2013
  5. Science

    Which choice describes how energy is transferred at the particle level through the process of conduction? A. The fast-moving particles in the colder material collide with the slow-moving particles in the hotter object. The collisions transfer energy from

    asked on May 6, 2019
  6. Chris

    Where is energy stored in electromagnetic waves? A. In the wave’s moving atoms B. In the oscillating electric and magnetic fields C. In the electromagnetic force D. In the wave’s directional vector

    asked on May 15, 2019
  7. Science help pleaseeeee?!?!

    A gas has a volume of 4.25 m3 at a temperature of 95.0°C and a pressure of 1.05 atm. What temperature will the gas have at a pressure of 1.58 atm and a volume of 2.46 m3? A. 356°C B. 82.7°C C. 47.5°C D. 321°C

    asked on August 18, 2016
  8. bob Joe

    38. A box slides down a 30.0 degree ramp with an acceleration of 1.20 m/s^2. Determine the coefficient of kinetic friction between the box and the ramp. I have no idea how to do this with only knowing the aceleration and the angle. Please tell me how to do

    asked on February 2, 2009
  9. Science

    Which of the following is not a postulate of the kinetic molecular theory? A. The collisions between gas molecules are elastic. B. The energy of a gas molecule is determined by quantum mechanics. C. Gas molecules travel in random, straight paths. D. The

    asked on August 18, 2016
  10. Science

    A block of wood weighing 25 N is submerged under water. If the net force on the wood is 5 N upward, how much buoyant force is acting on the wood? A. 30 N upward B. 25 N downward C. 20 N upward D. 5 N upward

    asked on April 29, 2019
  11. physics

    A solid sphere rolls up an inclined plane of inclination angle 35 degrees. At the bottom of the incline, the center of mass of the sphere has a translational speed of 13 ft/s. How far (in feet) does the sphere roll up the plane (distance along the plane)?

    asked on May 6, 2013
  12. Science

    Can someone help me with this, at least help by explaining a bit what is going on? question: What is going on in the diagram? Picture: It's a boat floating on water, but another one on the ocean floor. A. the waves are pointing

    asked on March 8, 2019
  13. science

    is chloringe flammable is chlorine flammable with a metal?

    asked on December 16, 2008
  14. CICI

    How do light microscopes work? Light microscopes use an electron beam to create an image of a specimen. Light microscopes use a combination of light and lenses to magnify a specimen.*** Light microscopes use a tiny tip that traces a specimen, enlarging it.

    asked on September 24, 2015
  15. nature of science

    which of the following would increase friction. A.Soap B.water C. sand

    asked on November 15, 2013
  16. physics

    A 16 lb block rests on a horizontal frictionless surface. A cord attached to the block, running horizontally, passes over a pulley whose diameter is 1 in, to a hanging block weighing 16 lb. The system is released from rest, and the blocks are observed to

    asked on May 6, 2013
  17. nature of science

    Two objects or 5kg to 10kg respectively and they're 10m apart. If the distance between them is increased to 20m, what happens to the gravitational force? A. it decreases B. it is doubled C. it increases slightly

    asked on November 15, 2013
  18. Clowney

    A shallow pan and a deep bowl hold equal amounts of salt water. If you left both containers in the sun for a day and then measured the salinity of the water in each, which would be saltier? Why?

    asked on October 12, 2011
  19. chemistry

    balanced equation: HC2H3O2 + NaOH -> What is the mole ratio of these two substances?

    asked on November 29, 2011
  20. Science

    Is there anyway I can create something similar to acid rain for my experiments? Thanks ( I was thinking of mixing water with vinegar and leaving it there for few day)

    asked on November 18, 2010
  21. nature of science

    which of the following best explains velocity? A.the speed & direction of an object in motion C.only the change of direction of an object in motion D.the direction of an object in motion

    asked on November 15, 2013
  22. Karen Myer

    Which cells identify as the ones most likely to hold the key to increased human longevity and vitality and how might this work? Describe one alternative to cloning that the authors mention

    asked on January 13, 2015
  23. nature of science

    which of the following is Not part of testing a hypothesis? A. reasoning B. modeling D. gathering evidence

    asked on November 15, 2013
  24. Science

    What are carbon sources and sinks for (a)The Water cycle (b) The Citrogen cycle (c) The Carbon Cycle

    asked on June 4, 2018
  25. 275 science

    Due Date: Day 7 [Individual forum]  Review the following Energy Resource Plan outline: I. Introduction: Provide information about why conserving energy is important. II. Renewable vs. Nonrenewable: Briefly distinguish between these two types of energy.

    asked on June 19, 2009
  26. Science

    What is the role can play integrated science in primary schools?

    asked on October 14, 2011
  27. Science

    Doesn't a diploid cell has 46 chromatids and duplicate in to 92 chromotids? why do people say 46 chromosomes in a deploid cell?

    asked on June 15, 2018
  28. Science

    When a wire of 5m and radius 0.5mm is stretched by a load of 49N, the Elongation produced in the wire is 0.1cm.find the energy stored per unit volume of the wire.

    asked on June 14, 2018
  29. science

    some have more than a 100 some hav none

    asked on October 1, 2016
  30. science

    How much energy is required to raise the temperature of 22.8 g of copper from 30°C to 1250°C?

    asked on February 27, 2012
  31. Amanda

    For Francisco Redi's Spontaneous Generation. Which would be considered the control group of the experiment and which would be the variable group? The jars that were sealed shut and the jars that were left open. which is which? Thanks

    asked on May 24, 2008
  32. science

    many animal foods like meat and fat are high in energy content. Where did this energy originate. explain by referring to food chains.

    asked on June 6, 2018
  33. Chemestry

    Prove basics radical?

    asked on March 3, 2017
  34. Biology

    If one of your skin cells divides, how many chromosomes will be found in the daughter cells? Number of chromosomes a human cell has before and after mitosis?

    asked on June 20, 2016
  35. science

    Should designers of Olympic medals use oxygen (O) to make an Olympic medal?

    asked on August 18, 2015
  36. Science and maybe re

    This isn't really homework, but I thought someone could really help me with this. Did time exist before the Big Bang? I believe in God; if time always existed, why did he make it wait? Looking for a really scientific explanation. Thanks!

    asked on May 23, 2015
  37. Neuroscience

    Which pattern best reflects the neural basis of memory that occurs during a delayed response task? 1 Neural activity is triggered by the sensory stimulus, persists at a diminished level after the stimulus is turned off, and lasts until the response occurs

    asked on December 10, 2014
  38. Science

    Artificial Selection leads to loss of Genetic Variation? or Genetic Equilibrium?

    asked on March 18, 2014
  39. chem

    How much energy is required to raise the temperature of 217 g of solid mercury at its freezing point to mercury vapor at its boiling point.

    asked on February 27, 2012
  40. Science

    Name some free Atoms?

    asked on October 16, 2011
  41. karan

    What's in the coke that stops an egg from bouncing ? is it caffeine

    asked on September 18, 2011
  42. science experiment (bouncing egg)

    What's in the coke that stops an egg from bouncing ? is it caffeine

    asked on September 18, 2011
  43. 9th grade

    is electric current shared in a series circuit?

    asked on April 5, 2010
  44. Population Size

    200- to 300-word response to the following: Explain the four factors that produce changes in population size. Which factors are affecting the population size in the video? What do you predict will happen to the nutria population after all the land is

    asked on May 24, 2009
  45. science

    Why does the temperature of boiling water remain the same as long as the heating and boiling continue?

    asked on January 30, 2008
  46. kg

    How is wildlife extinction impacting the world? Check these sites.

    asked on March 11, 2007
  47. Angela

    What kind of air is above water during land breeze (high pressure or low pressure) What kind of air is above land during land breeze? (high pressure or low pressure)

    asked on February 4, 2018
  48. Chemistry

    H2S+Is >2HI+S

    asked on April 16, 2016
  49. Linda

    What are some arguments against extending human life? Please describe at least 1 concern and 1 objection from your experience.

    asked on January 13, 2015
  50. physics

    define pendulum bob amplitude oscillation

    asked on December 12, 2014
  51. Science

    make a paragraph about your favorite thing about winter? someone please help

    asked on December 2, 2014
  52. science

    Describe three potential extraneous variables in your experiment on whether prayer causes healing

    asked on May 25, 2013
  53. CrissyXD

    Question: Name some plant or animal tissues in which mitosis can be observed. I need to name about five but all I know is in meristematic tissues in plants.. please help me to name more! Thanks...

    asked on May 27, 2012
  54. science

    fill in the blanks with these worsd: galaxies gunpppowder guns hubble space telescope mummy sealed tomb the invention of 1990 of the led to the 1996 discovery of new .

    asked on April 20, 2012
  55. chem

    How much energy is required to raise the temperature of 217 g of solid mercury at its freezing point to mercury vapor at its boiling point.

    asked on February 27, 2012
  56. Science

    What Temperature would you get after the First 5 Minutes of Putting 4 Ices into a 99 degree warm water? After The Second 5 MInutes? YOu Might need to do this experiment at home. But May anyone Please Help and tell me it in Farenheit so i can confirm my

    asked on December 13, 2011
  57. grade5

    5 devices of energy in your home. please tell me. whats the largest source of power in the whole toronto. please help me i`m confused. i cant find good websites.

    asked on February 24, 2011
  58. 12th grade

    which of the following contributed most to the fish population dying during the 1970's

    asked on January 20, 2010
  1. Science

    Isn't it bc if you look at a activity series, lithium is very reactive while silver is at the bottom. So silver would take longer to react making it easier to recover vs lithium that will mix into the solution and possibly disappear making it very hard to

    posted on January 25, 2019
  2. science

    check if im right ; meats and fat are high in energy content because in the food chain the energy passes on and the animals get bigger which they have high energy content inside those animals.

    posted on June 6, 2018
  3. Science

    i meant what are sources and sinks for, not carbon sources and sinks

    posted on June 4, 2018
  4. science

    This is for CONNECTIONS ACADEMY ONLY I do not want any other students from a different getting it wrong Lesson 1: Work and Machines Science 6 B Unit 3: Energy 1. B 2. C 3. A 4. A 5. D

    posted on February 23, 2018
  5. socialstudies(5Qs)

    Xaviyon is 100% right

    posted on February 21, 2018
  6. science

    b,d d b b

    posted on February 21, 2018
  7. science

    Hdhdhd Xjxdhhd

    posted on February 16, 2018
  8. Math

    7 bats

    posted on October 27, 2017
  9. biology


    posted on July 6, 2017
  10. chemistry

    Ka re nahi aa raha hai. Ka karta hai.

    posted on May 1, 2017
  11. Science


    posted on December 19, 2016
  12. Science

    The correct answer for 18. is point source>>>

    posted on December 8, 2016
  13. Science

    Same haha

    posted on June 29, 2016
  14. physical science

    I not sure what they are asking maybe they want you to give examples.

    posted on April 29, 2016
  15. Economics


    posted on April 4, 2016
  16. Science

    my home

    posted on April 4, 2016
  17. Needing HELP PLEASE!!!

    I need help on this answer two is it b or c

    posted on March 4, 2016
  18. science

    Reallllly stuck need help in the big idea of transfer thingie HELP!!

    posted on October 9, 2015
  19. science

    I think it's A as well.

    posted on February 21, 2015
  20. help

    pythogores theorem is sum in lenght= total lengt of two sides soory if it is wrong 40 years back i was learning this and now i am 67 years

    posted on December 12, 2014
  21. math

    a. 24 cups pineapple juice 48 cups orange juice 72 cups seltzer b. 6 c. 0.6(6)

    posted on December 10, 2014
  22. Biology

    chromosomes are condensed DNA, which means that all of our cells contains the same 23 chromosomes, but these 23 chromosomes are different

    posted on December 10, 2014
  23. Science

    then what?

    posted on December 2, 2014
  24. Science

    can you post the paragraph here plese?

    posted on December 2, 2014
  25. Science

    i have ideas i just need help putting it in paragraph like i like when it snows holiday breack new years snowball snowman sleeding

    posted on December 2, 2014
  26. Science

    to put your favorite thign about winter in paragraph

    posted on December 2, 2014
  27. Science

    I think its c

    posted on March 17, 2014
  28. Science


    posted on February 8, 2014
  29. nature of science

    if john travels 2387 miles in 2 days. What's his average speed per hour. A.49.7mph B. 1193.5mph C. 73.7mph

    posted on November 15, 2013
  30. physics

    Elena's answer seems to be incorrect

    posted on October 6, 2013
  31. science

    what is a component that is synthesized by photosynthetic producers and on which all aerobic consumers depend on?

    posted on October 26, 2012
  32. Science

    yes... but i got the degrees but i am not surely positive and i would right it online. But i don't wnat someone to be like 'oh your answer is correct' and just agree with me just because i wrote it. I hope you can understand what i am saying

    posted on December 13, 2011
  33. chemistry

    What is the "A"

    posted on November 29, 2011
  34. grade5

    thank you so much i didn't notice that because my niece was crying and i was in a rush thank you Ms.Sue

    posted on February 24, 2011
  35. grade5

    miss sue i went on this website and it said fuel fossel is most useful power source in Toronto but i still cant find the 5 devices that use energey in my house

    posted on February 24, 2011
  36. grade5

    help please

    posted on February 24, 2011