1. science
    waves of frequency 20 hz are generated along spring. the distance between successive crests and troughs is 0.45m
  2. Science
    Trees don’t eat like the sheep in the image above. Construct an explanation as to how they get the energy they need for survival. Be sure to include the organelles in the cells that contribute to these different functions. I don't under stand it and it is worth 3 extra ...
  3. Science
    What are the organs that fat bodies are adjacent to in the frog? It is a six letter word.
  4. Science
    what is the name of the structure that air passes through when going to lungs from mouth in the frog?
  5. Science
    What are the organs that fat bodies are adjacent to in the frog? It is a six letter word.
  6. Science
    1969?????/
  7. social science
    who kill to Mahatma Gahandi
  8. Science
    Why do we store silver chloride in dark coloured bottles?
  9. science
    A frog’s intestine absorbs toxins, such as venom in insects, along with nutrient s. The liver then filters these toxins out. Why is this filtering so important?
  10. science
    As you look out of your fourth floor dorm window.a flower pot suddenly falls past.The flower pot originally on a window still above passes your 2.0 m high window in 0.093s.The distance between floors in the dorm is 4.0m.From a window on which floor did the flower pot fall?
  11. 5th grade science
    In the newspaper one day you read that highest tides of the season are expected in the next month. What can you infer about the positions of the sun, earth, and moon? what phase of the moon will probably be visible?
  12. Science
    Mr. Belvedere designs an experiment to test the effect of different colored light on the rate of photosynthesis. He sets up his experiment using elodea, 25watt bulbs, 30mL of distilled water, and 5g of sodium bicarbonate. Plant 1 is exposed to no light. Plant 2 is exposed to ...
  13. science
    Which gas is formed when a hydrogen bomb is detonated?
  14. Science.... PLEASE HELP :(((
    The current atomic model would be revised if _______. :(
  15. Science
    I'm having trouble with this question, can someone help? Which of the following is the BEST description of forest soil? thin humus layer, minerals deep beneath the surface thin humus layer, minerals close to the surface very little humus, rich in minerals very little humus, ...
  16. Science
    Hey can anyone help? I am having trouble with one question, and I need someone to check my answer for a different one. Which of the following is a living renewable resource? trees*** water sunlight wind This is one I am having trouble with: Which of the following is the BEST ...
  17. Science
    The height of a plant is dependent upon? 1)it's genes 2)it's environment 3)both it's genes and it's environment 4)neither it's genes nor it's environment I think #1 In humans, the allele for curly hair and the allele for straight hair show incomplete dominance. The offspring ...
  18. Science
    A gene is to a chromosome as ? 1) a pea is to a pod 2)a front is to a back 3)a bike is to a car 4)a building is to a window I think # 1 Thanks.
  19. science
    How do the secretions from the liver and pancreas interact with each other in the small intestine?
  20. science
    How do i work out the mass of a flywheel. I am given the density as 7800kg/m3, a 760mm diameter and a 180mm width. Please help
  21. Science
    How do people benefit from coastline?
  22. Science
    How are some ways you can compare the visible spectrum with the rest of the elctromagnetic spectrum.
  23. Science
    Describe the flow of blood in the human body, including through each of the four chambers of the heart. Explain how the blood changes as it moves through various locations in the body. Blood enters the heart through two very large veins, the inferior and superior vena cava, ...
  24. Science
    A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater atomic mass. Which element should the researcher select for the experiment? A. Nitrogen (N) B. Sulfur (S) C. Arsenic (As) D. Silicon (Si) I choose Arsenic, because it's in the ...
  25. Science
    Hello! Can someone please check my answers? Which step in the rock cycle occurs immediately before sediments are laid down? erosion breaks down rock*** lava cools heat and pressure are applied layers form From what material does an extrusive rock come from? lava*** mineral ...
  26. science
    A 1200 kg sports car accelerates from 0 to 60.0 mph (27.0 m/s) in 5.20 seconds. What is the average power developed in watts? In kilowatts?
  27. science
    Which of the following can be expected to occur as climate change continues on Earth? is it increased coastal flooding
  28. Science
    Hi, I need help with 2 questions!  Which type of underground magma formation is usually dome shaped? dike laccolith sill batholith Laccolith is my answer. Scientists want to protect a beach from erosion. What can they do? I don't know this one. I am not sure what they can do...
  29. Science
    Wind, Solar, Nuclear, Geothermal, and Water How could each source be used for a house?
  30. Science
    What are the two gases that animals exchange with their surroundings? A)oxygen and nitrogen B)nitrogen and helium C)hydrogen and carbon dioxide D)carbon dioxide and oxygen Someone please help!!!
  31. science
    which physical properties are characteristic of metal
  32. Science
    Which of the following is the safest place to be during an earthquake? under a very strong table In a basement In a large truck Under a car I have never been in an earthquake, but I have been in a tornado. I hid in a basement, but tornadoes aren't earthquakes. I think the ...
  33. Science
    When you feel your pulse, what type of blood vessel are you feeling? What characteristics allow you to feel this?
  34. Science
    What secondary benefit does a frog gain from a three-chambered heart?
  35. Science
    Can someone check my answer? The deepest parts of the ocean floor are called ____. ridges sea mounts trenches abyssal plains My answer is abyssal plains. Am I correct?
  36. Science
    Which of the following quicjly changes the land when gravety pullsloose rocks and soil down the side of a hill
  37. Science
    Mass=48; volume=24cm³. What is the density of this substance?
  38. Science
    A deactivated deadly strain of bacteria was first treated with protease enzyme. It was then mixed with a harmless strain of live bacteria. The live bacteria became deadly. Which of the following statements is a valid conclusion from the experiment above? a. Dead bacteria are ...
  39. Science
    What are some PQS' that I can give to a project right now?
  40. Science 6B
    1. Which of the following is an example of a competitive relationship in an ecosystem? A)an insect species that captures other insect species by posing as a leaf in a tree B)a bird species that does not build its own nests but uses nests abandoned by other bird species C)a ...
  41. Science
    Cutting of trees on large scale is called
  42. Science
    In the system shown above m1 = 9.5kg and m2 = 2.6kg. If the coefficient of kinetic friction UK = 0.15 and the system is released from rest
  43. science
    What are the major physical differences between the respiratory system of a human and the respiratory system of a frog?
  44. Science ( just a little bit)
    Which of the following characteristics of the arctic rabbit is specifically an adaption to the living in the tundra? ( my answer) B A) Small size B) Keen eyesight ***** C) Strong legs D) White fur do you think i can get the answers? according to the continental drift theory ...
  45. Science
    Help please! Nitrogen-fixing bacteria in soil turns nitrogen gas into _____. ammonia oxygen water carbon dioxide Please help!
  46. Science
    How are fossil fuels formed
  47. Science
    Nobelium -259 has a half life of 58 min? How much remains of 1kg sample after 1 day? Use the formula. A= Aö (1/2) t/h
  48. Science, please help!
    Please check my answer! Fill in the blank for below: Resources that cannot be replaced in the environment once they are used are _____. renewable resources compost nonrenewable resources I think the answer is nonrenewable resources.I might be incorrect, so please check! This ...
  49. Science
    A coach wants to find out the speed of the runners on the track team.Tell what simple equipment the coach need in order to do this and explain how it should be done.
  50. Physical science b
    The mass of ball A is 10kg and the mass of ball B is 5kg. If the initial velocity is set to 3 meters per sec for each ball, what is the final velocity of ball B if the final velocity of ball A is 2 meters per second? Use the elastic collision equation to find the final ...
  51. Science
    How are frogs able to alter the amount of cutaneous respiration that occurs?
  52. Science
    Determine the mass of lead chloride precipitated when 5g of sodium chloride solution reacts with lead trioxonitrate v.
  53. Science
    If a real frog was being dissected and the stomach has food in it, would any of it be identified?
  54. science
    what is an example of mutualism in a cave dwelling?
  55. Extra Credit
    This isn't really a question most people ask, but I have to! There is this extra credit for each subject Social Studies, math, Science, LA, etc. The one's I don't have good grades on are Math and Language Arts. My father is leaving on a trip tomorrow, so I don't have a lot of ...
  56. Science
    Draw an energy level diagram for the combustion of methane
  57. Science
    How much energy is given out whwn 1g of methane burns
  58. Science
    7. Which degree of tilt produced light similar to what North America experiences in summer? Explain your answer *Based on the four seasons portfolio I need help with this bevause I dont understand what it is asking. Is it asking for the areas or the degree? if its the degree, ...
  59. science
    Acetic acid (CH_3COOH) is a weak acid. a) Write the symbolic equation showing the ionisation of acetic acid. b)Given that an acetic acid solution of pH 4.8 has a hydrogen ion concentration of 1.58 * 10^-5 mol L^-1, what is the concentration of the acetate ion at equilibrium? c...
  60. science
    A what will the vibration of air mileules produce
  61. science
    Which simple machine operated on the same principle as the movements of the arm at the elbow
  62. science
    What could be some effects of population growth, natural disasters, disease, and advanced technology systems on resource availability?
  63. science
    What are the most important events in the history of animal life that occurred at the beginning and at the end of the paleozoic
  64. Earth Science
    What instrument records earthquake waves? A.) seismogram B.) seismograph* C.) Ritcher scale D.) barometer
  65. Science
    How has the number of species becoming extinct changed in the last few centuries?
  66. Science
    Does anyone know if there is a toxin in cigarette smoke or from hazardous waste that causes flu-like symptoms, shortness of breath, or swollen nose? Thanks.
  67. Science
    thermal energy is cause by the motion of ?
  68. Science
    What are the internal structures of a frog's stomach called?
  69. Science
    __ degrees east or __ degrees west are coordinates for what?
  70. Science
    A volleyball is served at the speed of 8.0 m/s at an angle 35° above the horizontal. What is the speed of the ball when received by the opponent at the same height
  71. Science
    A ball is dropped from height of 8m above the ground. After striking the ground the ball rebound instantaneously with the same speed it struck the ground. The instant at which ball strike ground, another ball is drop from the same height. Find the height in metres at which the...
  72. Science
    Yes I know this might be easy for some of you, but I have this problem on my homework and I'm confused. Why is water wet?
  73. science
    The magnitude of the force that a baseball bat exerts on a ball is 50. newtons. What is the magnitude of the force that the ball exerts on the bat? a 250 N b 5.0 N c 50. N d 10. N
  74. science
    how do we make Static Change?
  75. Science
    An open tank holds water 1.25m deep. If a small hole of cross section area 3cm^2 is made at the bottom of the tank, calculate the mass of water per second initially flowing out of the hole. (g=10m/s^2, density of water= 1000kg/m^3)
  76. Science
    What is the relationship between HIV and AIDS?
  77. Science
    What is the puckered opening between the legs of a frog called?
  78. math
    The science club sold 35 T-shirts last week and 28 T-shirts this week. What is the percentage of decrease in the number of T-shirts sold?
  79. Science 7 A Unit 4
    Think about how the amount of energy changes as you move stepwise from producers to primary consumers to tertiary consumers in a food chain. Which shape could you use to model the quantities of energy at all of these types? Circle Square Triangle Line
  80. science
    When a space shuttle was launched, the astronauts on board experienced an acceleration of 19.0 m/s2. If one of the astronauts had a mass of 60.0 kg, what net force in newton’s did the astronaut experience? Be sure to include your units.
  81. Science
    Which of the following best describes the velocity of an object? 5 m east 28 m/s 5m/s2 35 m/s east****
  82. Science
    What is “formal science” and how does it relate to natural and social sciences? How does each type of science play a role in environmental sustainability? How does ethical responsibility plan a role in environmental sustainability?
  83. Science
    What is the difference between speed and average speed?
  84. Science
    Will squids ink stain our skin?
  85. Science Help
    Whats an illness caused by a protist? I have to research it.
  86. SCIENCE
    WHAT IS CHEMICAL PROJECTS
  87. Data Communication (Computer Science)
    A noisy channel which has a bandwidth of 400KHz and theoretical channel capacity of 4.01Mbps. According to Shannon Capacity formula: a. Calculate the Signal Power received at the receiver end if the Noise Power is .001 Watt. b. Calculate the signal to noise ratio of the ...
  88. Science
    A biology class wants to perform an experiment to investigate the effect of different colors of light green, yellow, red, and clear cellophane and plant three seeds in each one. What part do the three seeds experiment? A. Confounding variable B. Independent variable C. Control...
  89. science
    How many protons are in the isotope Oxygen-20?
  90. physical science
    Please check my answers on this physical science quiz, thanks 1. in which of the following scenarios are action and reaction forces involved? a. when a tennis racket hits a ball b. when you step from a curb c. when you row a boat d. all of the above** 2. the product of an ...
  91. Science
    My first in van but not in pan
  92. Science
    Explain the reaction (iron sulpide) using the Big Idea of Energy?
  93. Science Question PLEASE ANSWER QUICK! :D
    27. What is the function of the astmosphere's ozone layer? A. shields Earth from harmful solar radiation B. provides the oxygen needed by human life C. protects Earth from sun's heat*** D. removes pollution from the atmosphere *** = What I think is the answer Thank you for ...
  94. Science
    A block of wood has a mass of 120 g and volume of 200 cm3. What is the density of the wood?
  95. science
    I need help to find important facts about the element Americium.
  96. SCIENCE
    ANY ONE HAVE THE ANSWERS PLEAZZZZ Mosquitoes, Be Gone! What scientific claim did the young scientists make regarding mosquitoes? * 6 points A. The young scientists claimed that mosquitoes are easily repelled using DEET and over the counter products. B. The young scientists ...
  97. Science
    An object with a mass of 4.5 kg is accelerating at a rate of 2m/s². What is the effect of doubling the force (on the same object) on the rate of acceleration? The acceleration will not be effected. The acceleration will be half of what it currently is. The acceleration will ...
  98. Science
    Diana is moving into a new apartment. She wants to get a heavy chair up to her second-floor apartment, but it will only fit through the window. Diana could strap the chair to her back and climb a ladder straight up to her window. Or Diane could use a simple machine, by sliding...
  99. Science
    Margarito's class is running sprints. Each student has to run to a wall 100 yards away, slap it, then run back to the starting line. It takes Margarito 53 seconds to run from the starting line to the wall and back again. What was Margarito's average speed? A.3.8 yd/s B.1.9 yd/...
  100. Science
    In which place u can able to see the object in the sky
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