Posts by science

Total # Posts: 85

  1. 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)
  2. chemistry

    Ka re nahi aa raha hai. Ka karta hai.
  3. Chemestry

    Prove basics radical?
  4. science

    some have more than a 100 some hav none
  5. Science

    science
  6. 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?
  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
  8. 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 absolute temperature of...
  9. 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?
  10. Chemistry

    H2S+Is >2HI+S
  11. Chemistry

    I have a gr 10 chemistry unit test coming up can someone please refresh my mind on this unit? and tell me what things i should practice for the test? Tyy
  12. Economics

    plants
  13. evs

    my home
  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. Light microscopes ...
  15. science

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

    Same haha
  17. science

    Hdhdhd Xjxdhhd
  18. 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!
  19. science

    I think it's A as well.
  20. 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
  21. Linda

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

    define pendulum bob amplitude oscillation
  23. math

    a. 24 cups pineapple juice 48 cups orange juice 72 cups seltzer b. 6 c. 0.6(6)
  24. 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 2 Neural activity ...
  25. Biology

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

    then what?
  27. Science

    can you post the paragraph here plese?
  28. 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
  29. Science

    to put your favorite thign about winter in paragraph
  30. Science

    make a paragraph about your favorite thing about winter? someone please help
  31. physical science

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

    Artificial Selection leads to loss of Genetic Variation? or Genetic Equilibrium?
  33. Science

    I think its c
  34. 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, bound to the promoter...
  35. science

    b,d d b b
  36. 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
  37. Jayleen

    The correct answer for 18. is point source>>>
  38. science(check answers again)

    thx bro i appreaceate
  39. 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 this object? A. 250N...
  40. nature of science

    which of the following is Not part of testing a hypothesis? A. reasoning B. modeling D. gathering evidence
  41. 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
  42. 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
  43. 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
  44. nature of science

    which of the following would increase friction. A.Soap B.water C. sand
  45. socialstudies(5Qs)

    Xaviyon is 100% right
  46. physics

    Elena's answer seems to be incorrect
  47. biology

    No
  48. science

    Describe three potential extraneous variables in your experiment on whether prayer causes healing
  49. 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 move 7.6 ft in 4 s. ...
  50. 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)?
  51. 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
  52. Needing HELP PLEASE!!!

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

    F.
  54. 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?
  55. 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...
  56. 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 .
  57. 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.
  58. 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.
  59. science

    How much energy is required to raise the temperature of 22.8 g of copper from 30°C to 1250°C?
  60. 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
  61. 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 Answers.
  62. chemistry

    What is the "A"
  63. chemistry

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

    Name some free Atoms?
  65. Science

    What is the role can play integrated science in primary schools?
  66. 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?
  67. karan

    What's in the coke that stops an egg from bouncing ? is it caffeine
  68. science experiment (bouncing egg)

    What's in the coke that stops an egg from bouncing ? is it caffeine
  69. 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
  70. 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
  71. grade5

    help please
  72. 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.
  73. 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)
  74. science

    Reallllly stuck need help in the big idea of transfer thingie HELP!!
  75. 9th grade

    is electric current shared in a series circuit?
  76. 12th grade

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

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

    7 bats
  79. 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. III. Methods to ...
  80. 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 depleted of the nutrias&#...
  81. 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 this.
  82. science

    is chloringe flammable is chlorine flammable with a metal?
  83. 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
  84. science

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

    How is wildlife extinction impacting the world? Check these sites. http://www.endangeredspecie.com/Why_Save_.htm http://www.equalearth.org/wildlifeextinction.htm