Physical Education

  1. physical chemistry
    1g of hydrogen contains 6x10^23 atoms. the atomic wt. of helium is 4 u. it follows that the number of atoms in 1g of He is:
  2. physical chemistry
    if the atomic mass of sodium is 23u the no. of moles in 46g of sodium is:
  3. physical chemistry
    a sample of ammonium phosphate (NH4)3PO4 contains 3.18 mole of H atoms. number of mole of o atoms in the sample is:
  4. physical chemistry
    the atmospheric pressure on mars is 0.61 kPa. what is the pressure in mm of Hg?
  5. physical chemistry
    which one of the following pairs of gases contains the same no. of molecules:
  6. physical chemistry
    the approximate no. of molecules of co2 present in 44g of co2 is:
  7. physical chemistry
    indium(atomic wt.= 114.82 u ) has two naturally occuring isotopes, the predominant one from has isotopic wt. 114.9041 and abundance of 95.72%. which of the following isotopic wt. is the most likely for the other isotope?
  8. physical chemistry
    on chemical scale, the relative mass of the isotopic mixture of x atoms (x^20,x^21,x^22) is approximately equal to:(x^20 has 99 percent abundance)
  9. Physical Science
    is the work needed to bring a car's speed from 0 to 10 km/h less than. qual to. or more than the work needed to bring its speed from 10 to 20 km/h? in the amounts of work are different, what is the ratio between them?
  10. physics
    The Bernouilli equation is a statement of which physical principle? Select one: a. COnservation of Momentum b. Newton's Second Law c. Pascal's Principle d. Conservation of Energy
  11. days care
    Of the following, the newest organization to accredit afterschool programs is the A. National Association for Sport and Physical Education. B. Council on Accreditation. C. National Afterschool Association. D. National Council for Accreditation of Teacher Education.
  12. English
    what is the difference to enhanced physical qualities to intellectual qualities
  13. physical science(chemistry change)
    Experiment of tiratic oxilic acid wih mass 4,5g and volume of 25ml,nd concentration of 0,05mol.dm.3 against volume of 14ml and 1,79mol.dm3 sodium hydoxide to determine the concentration of sodium hydroxide,,show all the working,aim,results,observation of result,discussion
  14. physical science(chemistry change)
    Experiment of tiratic oxilic acid wih mass 4,5g and volume of 25ml,nd concentration of 0,05mol.dm.3 against volume of 14ml and 1,79mol.dm3 sodium hydoxide to determine the concentration of sodium hydroxide,,
  15. physical science
    Electrons are emitted from a conductor when the conductor is A. subjected to a small voltage. B. exposed to weak light. C. bombarded by high-speed electrons. D. cooled rapidly.
  16. physical science
    When an electron is displaced in a semiconductor, the hole that's left behind is A. attracted to the negative terminal of the voltage source. B. attracted to the anode of the voltage source. C. incapable of carrying a charge. D. considered and impurity in the crystal.
  17. POL 201 week 1 Quiz
    Question 1.1. In John Locke’s social contract, we (Points : 1) submit to the absolute authority of the sovereign. donate all our property to the aristocracy. can rebel against the sovereign whenever we want. exchange our absolute liberty for political freedom. Question 2.2...
  18. writing
    in the topic sentence exercising three days a week will provide good physical health,what is the topic statement and what is the controlling sentence?
  19. physical sciences
    Which substance has the weakest intermolecular force between ethanol,nail polish remover and methylated spirits?
  20. physical science
    A solution that contains a large amount of salt and a small amount of water is said to be a __________ solution. A. dilute B. unsaturated C. concentrated D. saturated
  21. physical science
    When the temperature of the air is 25 degrees Celsius, the velocity of a sound wave traveling through the air is approximately A. 332 m/s B. 320 m/s C. 357 m/s D. 347 m/s
  22. physical science
    The density of water is the greatest at a temperature of A. 0 Kelvin B. 277 Kelvin C. 273 Kelvin D. 4 Kelvin
  23. civics
    Which of the following describes how features of countries in north america influence change in these countries ? A.Most have flat terrain, making railroads the least expensive method of transporting goods. B.with oceans on both sides, most countries have access to many sea ...
  24. *Repost* (sorry!) Health & PE HELP ASAP PLEASE!!!!
    1. A long term health benefit of regular physical activity is improved A. coordination B. reaction time C. ability to fight heart disease***** D. speed 2. Ginger and Kelly go to the same middle school in their town. Ginger rides her bike daily to and from school, while Kelly ...
  25. physical chemistry
    What is the Enthalpy of Decomposition of liquid Hydrogen peroxide (in kJ/mol)?
  26. PE
    Ms. Sue please help. 1. Coupled with inactivity and poor eating habits, Cary usually feels very sluggish around 10:00 a.m., and his second period teacher has noticed he loses concentration during class. Which long-term health benefit could Cary improve with daily physical ...
  27. physical science
    A 0.200 kg ball sits on a shelf 2.00 meters from the floor and then falls to a point 1.00 meter from the floor ignoring any affects due to fiction at this position_______
  28. Law
    1. What demographic of officer is less likely to use physical force and firearms and are more likely to use chemical weapons, such as pepper spray? A. Female officers B. New officers C. Young officers D. Male officers is it D 2. What is the difference between pepper spray and ...
  29. Science
    Which part of the ocean floor is part of the continuous underwater mountain range that circles Earth? B. Mid-ocean ridge Which of the following statements describes the difference between physical and chemical weathering? B. Physical weathering is caused by ice, while chemical...
  30. English III
    Franklin Roosevelt's "State of the Union Address, 1941," excerpt ( ) For there is nothing mysterious about the foundations of a healthy and strong democracy. The basic things expected by our people of their political and economic systems are simple. They are: Equality of ...
  31. physical science
    A machine is supplied energy at a rate of 4,000 W and does useful work at a rate of 3,760 W. What is the efficiency of the machine? A. 92 percent B. 94 percent C. 97 percent D. 96 percent
  32. physical science
    A machine is supplied energy at a rate of 4,000 W and does useful work at a rate of 3,760 W. What is the efficiency of the machine?
  33. English III HELP ME PLEASE
    Please tell me which ones are wrong and the corrections The War of the Worlds by H. G. Wells [1898] But who shall dwell in these worlds if they be inhabited? Are we or they Lords of the World? And how are all things made for man?- KEPLER (quoted in The Anatomy of Melancholy) ...
  34. English III
    The War of the Worlds by H. G. Wells [1898] But who shall dwell in these worlds if they be inhabited? Are we or they Lords of the World? And how are all things made for man?- KEPLER (quoted in The Anatomy of Melancholy) BOOK ONE: THE COMING OF THE MARTIANS CHAPTER ONE: THE EVE...
  35. English III
    The War of the Worlds by H. G. Wells [1898] But who shall dwell in these worlds if they be inhabited? Are we or they Lords of the World? And how are all things made for man?- KEPLER (quoted in The Anatomy of Melancholy) BOOK ONE: THE COMING OF THE MARTIANS CHAPTER ONE: THE EVE...
  36. Essay
    The War of the Worlds by H. G. Wells [1898] But who shall dwell in these worlds if they be inhabited? Are we or they Lords of the World? And how are all things made for man?- KEPLER (quoted in The Anatomy of Melancholy) BOOK ONE: THE COMING OF THE MARTIANS CHAPTER ONE: THE EVE...
  37. English III
    The War of the Worlds by H. G. Wells [1898] But who shall dwell in these worlds if they be inhabited? Are we or they Lords of the World? And how are all things made for man?- KEPLER (quoted in The Anatomy of Melancholy) BOOK ONE: THE COMING OF THE MARTIANS CHAPTER ONE: THE EVE...
  38. english- Intro edit
    can someone edit this The mere pigment of one’s skin deep makeup has served as the basis for hurtful bias, racism, and other discriminating actions within our society. The racially perceptive film, Do the Right Thing by Spike Lee, exemplifies how segregation amongst separate...
  39. physical education
    what is a small definition of log roll answer:clutched on the ground with both ands at your side and roll
  40. Physical sciences
    An object has an excess of 50 electrons, What is the charge on the object
  41. physical
    A 65.0-kg circus performer is fired from a cannon that is elevated at an angle of 55.8 ¡ã above the horizontal. The cannon uses strong elastic bands to propel the performer, much in the same way that a slingshot fires a stone. Setting up for this stunt involves stretching ...
  42. PE--Check my answers :)
    Which resource would be the best choice to learn more information about studying martial arts? dance studio *** local bait shop phone book public golf course 2. At the 8th grade dance, Myron asks Janelle if she would like to dance with him seconds before Octavio asks Janelle ...
  43. Health and Physical check answers
    My Answers: #1) Greater coordination #2) Healthcare providers #3) Speak with a nurse about the product. #4) Amy convinces Briana to pick on the new student on their softball team. #5) Act #6) Walk away. #7) exercising every day for 45 minutes #8) Cindy and Marcus have a ...
  44. physical
    Convert 20 degrees centigrade to kelvin scale
  45. physical
    What would be the final temp of a mixture of 50gms of water at 20 degrees centigrade temp and 50gms of water at 40degrees centigrade temp
  46. Health and Physical check answers
    My Answers: #1) Greater coordination #2) Healthcare providers #3) Speak with a nurse about the product. #4) Amy convinces Briana to pick on the new student on their softball team. #5) Act #6) Walk away. #7) exercising every day for 45 minutes #8) Cindy and Marcus have a ...
  47. Social Studies
    How have humans impacted the physical environment in Early America?
  48. Physical Science
    The specific heat of copper is 0.385 J/g.°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of copper from 7°C to 29°C? a. Q = 0.385 J/g.°C ` (29°C 7°C) b. Q = 0.75 g ` 0.385 J/g.°C ` 29°C c. Q = 0.75 g ` 0.385 J/...
  49. Physical World Concepts
    A rope is attached to a block that has a weight of 120N. When the rope exerts an upward force of 250N on the block, what is the net force on the block?
  50. Chemistry
    Consider a chromium-silver voltaic cell that is constructed such that one half-cell consists of the chromium, Cr, electrode immersed in a Cr(NO3)3 solution, and the other half-cell consists of the silver, Ag, electrode immersed in a AgNO3 solution. The two electrodes are ...
  51. physical
    24 joule work is done in moving a charge of 6c between two points. Calculate potential difference between this two points.
  52. Science
    1. Which of the following describes the correct sequence of the movement of food during digestion? stomach, large intestine, small intestine *** mouth, esophagus, small intestine esophagus, stomach, small intestine small intestine, stomach, large intestine 2. Compare the two ...
  53. H.E.L.P
    1. Which of the following describes the correct sequence of the movement of food during digestion? stomach, large intestine, small intestine *** mouth, esophagus, small intestine esophagus, stomach, small intestine small intestine, stomach, large intestine 2. Compare the two ...
  54. physical
    A 2500‐kg vehicle traveling at 25 m/s can be stopped by gently applying the breaks for 20 seconds. What is the average force supplied by the breaks to stop the vehicle?
  55. health pllz help me i have trouble
    1. Haley is excited about a new activity she learned about while surfing the Internet called orienteering. Which community group would most likely be able to give her a good start in this activity? (1 point)church youth group dance team drama club Girl Scouts 2. Select the ...
  56. physical
    Displacement time graph and velocity time graph is equall to describe motion of particles.
  57. Driver Education
    Attention fatigue is the result of (1 point) physical exertion. boredom. mental exertion. lack of sleep. 2. Fatigue affects your ability to (1 point) understand traffic signals. perceive and respond to threats. recognize objects. avoid pedestrians. 3. The body's natural ...
  58. physical science
    A 2400-kg truck accelerates from 20 m/s to 35m/s in 5s. find the net force on the truck
  59. Language Arts
    In drafting a descriptive paragraph, how are the details organized if you use spatial order as the organizing principle? a)from most general to most specific b)by physical position or relationship to each other c)by the date each event occurred d)in order of importance Is the ...
  60. math?
    how do i figuire this problem out? .. A deep-sea diver must descend and ascend in short steps to equalize pressure on his body. If the diver rises toward the surface too fast, he may suffer from a physical condition called “the bends.” Suppose the diver started at 82 feet ...
  61. Physical science
    a swimming pool is 25 m long and 10 m wide and is filled to an average depth of 1.5 m how many kilogram of water does it contain?
  62. Chemistry
    Having trouble with this question on my homework =/ 200mL of 0.5M H2SO4 is combined with 500mL of 0.1M NaHCO3. List the physical states of all products, give molarity of aqueous ions and grams of gases and solids. Thanks alot guys!! Any help is awesome
  63. PLEASE HELP!! Org. & Admin. of Sports & Recreation
    The least valid qualification in hiring a coach is: (A) A College superstar B Thorough knowledge of rules and techniques C Ability to teach D Understanding of players E Desirable personality The interests of all athletes participating are best served if: (C) A The present ...
  64. science
    Johnny left a glass of milk on his bedside table for a week, and it spoiled. at the end of the week, the glass contained a yellow liquid with lumpy white chunks, and there was a terrible order. what can be concluded? A. the milk has undergone a physical change. B. the mass of ...
  65. English
    The astronauts who were selected for this mission had to be in superb physical condition. Is sentence a essential or nonessential?
  66. Physical Science
    Which of these cannot increase the strength of an electromagnet? a. making the loops smaller in the coil b. placing an iron bar in the coil c. winding more loops in the coil d. increasing the current in the coil
  67. physiology and health
    True or False???? 1) During mediation, a mediator dose not have to maintain confidentiality. 2) Food, shelter, and clothing are baisc needs that parents are expected to provide for their children. 3) Affirmation is the act of giving positive input that helps someone feel ...
  68. U.S History DBQ (Pls check my answer)
    Document 2 - As the woman suffrage movement gained momentum, Booker T. Washington issued the following statement to the New York Times: I am in favor of every measure that will give to woman, the opportunity to develop to the highest possible extent, her moral, intellectual, ...
  69. The Metamorphosis by Franz Kafka
    In "The Metamorphosis" Part 1, Gregor stated that if it wasn't for his parents' debt, he would have given his notice at work long ago. What does this suggest about his transformation? A) It had actually been years in the making. B) It was evident only to him. C) It happened ...
  70. SCIENCE HELP! SOMEONE!
    A student compared some chemical and physical properties of three pure substances. Her data are recorded in the chart above. What is a logical conclusion the student can draw about pure substances? A student compared some chemical and physical properties of three pure ...
  71. science
    1. The image above shows the Andes Mountains. Which of the following processes formed this feature? (1 point) (pic of Andes Mountains) Glaciers deposited sediment. Plates converged together to form the mountains. Plates pulled apart and released magma. Sand dunes hardened and ...
  72. ENGish
    1. What are the characteristics of an effective television newscaster? Explain. 2. Why are so many people over the age of twenty-one entering college? Discuss. 3. What could be done to make the public less hesitant to report crime? 4. Do Americans seem unable to relax in ...
  73. Physical sciences
    The ruler now make contact with the neutral sphere.what happens to electrons?
  74. physical
    You are playing a note that has a fundamental frequency of 440.00 Hz on a guitar string of length 59.1 cm. At the same time, your friend plays a fundamental note on an open organ pipe, and 4.0 beats per seconds are heard. The mass per unit length of the string is 1.93 g/m. ...
  75. Physical sciences
    A factory siren emits a sound at 900hz.what frequency will be heard by the driver of a car traveling at 100km.h away from the factory?
  76. Science
    Both carbon dioxide and water are pure substances. How are they similar to each other? A.) both substances have a set ratio of atoms that cannot be separated by physical means. B.) both substances have a set ratio of atoms that can be separated by physical means. C.) both ...
  77. English: tragedy
    Paraphrase this line by line: I don't understand this.. In tragedy, man is a paradox in a paradoxical existence. Fallible and vulnerable in his mortal finity, he is yet capable of transcendent greatness. Freely exercising his will (a passive hero is pathetic rather than tragic...
  78. Health
    What are some ways to adjust your exercise and nutritional plan due to age, pregnancy, and physical capabilities?
  79. Health
    What are four nutritional an physical exercise goals?
  80. physical science
    a ship is 850 m from a vertical cllff the ship sireN IS SOUNDED AN ECHO IS HEARD AFTER 5 SECOND CALCULATE THE SPEED OF THE SOUND FROM THE SIREN OF THE SHIP
  81. U.S. History
    Read this passage by Booker T.Washington: I am in favor of every measure that will give to woman, the opportunity to develop to the highest possible extent, her moral, intellectual, and physical nature so that she may make her life as useful to herself and to others as it is ...
  82. Food and Nutrition
    Children's Parties The stage 'children (ages 4-12 years) Relationship between nutritional needs and: - physical challenges -emotional challenges -social challenges THESE RELATIONSHIPS REGARDING CHILDREN AT PARTIES AND FOOD.... i just need some points..
  83. World Civilization
    1. In 1789, the National Assembly revoked the privileges of the aristocracy. This occurred in reaction to A. a peasant uprising. B. Louis XVI's withdrawal of troops from Paris. C. discontent among the poor people of Paris. D. the storming of the Bastille 2. What was ...
  84. Food and Nutrition
    Physical, emotional and social challenges meeting needs for life stage children ages (4-12 years) for the following points : -- lunches -- children's parties Can i just get some points to make my presentation? pls help me if u can :)
  85. Physical sciences
    A 330kg crate slides down a 30 degree inclined plane. The total length of the plane is 3,6m. The crate is kept from accelerating by a man who is pushing back on it parallel to the incline. Calculate the force exerted by the man on the piano
  86. chemistry
    I want to make sure I am correct in classifying whether the following properties of hydrogen are chemical or physical. thanks 1. hydrogen will burN in in oxygen to form water. CHEMICAL 2. hydrogen does not support combustion. CHEMICAL 3.hydrogen is usually found combined with ...
  87. psychology
    Which of the following statements about psychological experiments is MOST accurate? A. The purpose of a single-blind experiment is to guarantee that neither the participants nor the experimenter influence the results. B.The participant's expectations about an experiment do ...
  88. PHI 208 Week 3 Reading Quiz
    Question 1. 1. It is unfair to criticize the profit-making purpose of business because: (Points : 1) it is in the nature of corporations and in the definition for their existence to form as a means to organize human effort more efficiently in order to maximize profits. as Adam...
  89. Physical Science
    13. Why can convex mirrors only produce virtual images? Sadly, I can't find this answer in my book. :( Any help would be appreciated, please and thank you!
  90. physical science
    Provide three statements that demonstrate the importance of units when describing motion.
  91. physical science
    Which of the following pairs of objects would have the strongest gravitational pull? two buildings in the same city ← two tall buildings in different cities two stars very far away from each other two stars very close to each other my answer is c
  92. physical science
    would 2 stars very far away from each other have a strong gravitational pull
  93. physical science
    is an elevator slowing down as it reaches the top floor a change in velocity?
  94. physical science
    a model train moving at a constant speed around a circular track has a constant velocity?
  95. Physical science
    1) how does the electric force between two oposite charges changes when the distance between the charges is tripled? 2)how does the electric force between two oposite charges changes when the amount of one charge is doubled?
  96. physical science
    If You Were Riding A Train List Some Examples Of Items That Would Make It Seem Like You Weren't Moving
  97. Science
    Physical properties used to indicate temperature changes include all of the following except a. color changes of liquid crystals b. volume changes of fluids and solids c. changes in electrical resistance d. odor changes in solids
  98. physical science
    what is the importance of ozone in the stratosphere for your health?what will happen to us when ozone depletion becomes more serious?
  99. physical science
    why it is necessary to apply sunscreen to your skin and wear sunglasses when you want sunbathe on the beach?
  100. Astronomy
    Another star cluster ("star cluster 2") lies 7.4 Mega-parsecs from the starship, and has an apparent radius of 6.3 arc seconds. You would like to know how big it is. Is it the same size as galaxies in our universe (i.e. tens of kilo-parsecs) or only as big as a star cluster in...
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