Physical Fitness

  1. physical science
    is an elevator slowing down as it reaches the top floor a change in velocity?
  2. physical science
    a model train moving at a constant speed around a circular track has a constant velocity?
  3. 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?
  4. physical science
    If You Were Riding A Train List Some Examples Of Items That Would Make It Seem Like You Weren't Moving
  5. 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
  6. 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?
  7. physical science
    why it is necessary to apply sunscreen to your skin and wear sunglasses when you want sunbathe on the beach?
  8. 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...
  9. Physical Science 9
    what sequence of process must happen for an atom of carbon to go from a man to a car?
  10. chemistry
    Freezing and Melting are two different physical changes that involve the same amount of energy. compare and contrast the potential energy diagrams that would represent each of these processes. Be specific in your comparison.
  11. physical science
    How many kilocalories of heat does the operation of a 1285 W hair dryer produce each second?
  12. Physical Sciences
    As a fighter pilot makes a tight turn (with his head toward the centre of curvature), the blood drains from his head, leading to loss of brain function. Once the radial acceleration reaches about 4g, the pilot’s vision switches to black and white and narrows to “tunnel ...
  13. health
    Thirty minutes of physical activity a day can improve your family and can help to bring you closer together Answer Are True False Thank You
  14. Physical Science 9
    what part of the carbon process is responsible for the release of carbon at a p[power plant combustion photosynthesis digestion decomposition my answer is a combustion
  15. Chemisty
    When the oxide of generic metal M is heated at 25.0 °C, only a negligible amount of M is produced. MO2(s)<-->M(s)+O2(g) DeltaS= 287.5 kJ/mol When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous. What is the chemical ...
  16. Criminal law
    1. An investigator conducting a crime scene search at the scene of a violent crime has certain responsibilities and procedures to follow related to evidence collection. Of the following steps, which one is not required of the on-scene investigator? A. Recognize or discover ...
  17. health
    Cosmetic surgery is more likely to lead to disappointment if a person is ________. A. Seeking surgery with the hope of influencing a change in oneself B. Seeking surgery with the hope of influencing a change in someone else C. Seeking surgery with the hope of influencing a ...
  18. Physical science
    An astronaut on a space walk bumps the shuttle and starts moving away at a velocity of 0.02m/s. The astronaut's mass is 100kg. He takes a 1kg "safety weight" and shoves it away in exactly the direction of his motion at a speed of 6m/s. at what speed does the astronaut move ...
  19. Health and Physical
    6. Winston’s baseball team had the bases loaded in the last inning when his friend Freddie watched three straight pitches go by without swinging and was called out on strikes to end the game. How can Winston demonstrate responsible behavior in this situation? Ask the coach ...
  20. Health and Physical
    1. Melody enjoys playing team sports, such as baseball and soccer. Which organization would provide her the best opportunity to participate in these activities? Parks and recreation center********* Private school A local gym A faith based organization 2. Abner participates on ...
  21. Physical science
    A man loads 1000 sacks of flour into a truck in 30.0 minutes. Each sack has a mass of 20.0kg and the man must lift each sack 1.00m from a cart up onto the truck bed. how much power did the man develop?
  22. Mathematics lit, physical science, life science. Geography and englsh ,sepedi and l.o
    What career m i qualify for it ?and where? And hw much m i g0ing to earn?? N how long it wil take me to learn??
  23. math
    Jayden wants to be a fast runner like his big brother, Isaac. Isaac encourages Jayden to do a “30 for 30” challenge. This would require Jayden to spend 30 minutes outside every day for 30 days doing some type of physical activity. In return, Isaac promises to do Jayden’s...
  24. Chemistry
    When the oxide of generic metal M is heated at 25.0 °C, only a negligible amount of M is produced. O2M(s) ----> M(s) +O2(g) Delta G^o = 290.3 kJ/mol When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous. What is the chemical ...
  25. Language Art (Please Check)
    1.C But mama told me never mind.She said i didn't need a bracelet to remember laurie,just as i didn't need anything to remember pap or our home in berkeley or all the people and things we loved and had left behind What is the main idea of this passage? A. When you lose ...
  26. Physical Science
    A 60 W light bulb at 120 V is left on in your house to prevent burglary, and the power charges 10 cents per kilowatt-hour, how much will it cost to leave the bulb on for 30 days?
  27. Physical Science
    The current in a toaster oven is 15 A when plugged into an electrical outlet that is 110 V. How much electric power is used by the toaster oven? Formula: P = IV
  28. Physical Science
    When mixing colors of light, why does combining a secondary color with its complementary color give white light? I can't find the answer in my book, please help!
  29. physical science
    Suppose you are camping in the mountains and you need to melt 1.8 kg of snow at 0.0 degC to 70.0 degC. The specific heat of water is 4186 j/kg*C while the latent heat of fusion for water equals 3.34 x 10^5 J/kg. How much heat will be needed? Express in KJ.
  30. language arts -
    Need to confirm if the verbs in the sentences are physical or mental actions: 1..Owens strong performance angered Adolf Hitler - Physical
  31. Physical Science 9
    what type of bond is a metal cation likely to form?
  32. language arts -
    Need to confirm if the verbs in the sentences are physical or mental actions: 1. Other Americans in the Olympics challenged their opponents, too. --physics 2. Wilma dazzled the crowds in the track & field competition. --physical 3. Al Oerter, an American discus thrower, ...
  33. Physical Science 9
    how did chadwicks discovery of nutrons change the atomic model
  34. Physical Science 9
    In an ionoic bond how many valence electrons would an atom have?
  35. language arts
    Need to confirm if the verbs in the sentences are physical or mental actions: 1. Other Americans in the Olympics challenged their opponents, too. Mental 2. Wilma dazzled the crowds in the track & field competition. physical 3. Al Oerter, an American discus thrower, dominated ...
  36. language arts
    Need to confirm if the verbs in the sentences are physical or mental actions: 1. However he won only 2 medals --Physical 2. Spitz also teamed with three other Americans in 3 relay races - Physical 3. In total, Spitz won s7 gold medals in a single Olympics---physical 4. That ...
  37. physical science
    Green light has a frequency of about 5.3Hz~10Green light has a frequency of about 5.3Hz~ 10^{14}. Using the relationship speed of light (c)=fƒÉ find its wavelength in air.
  38. Physical Science
    The entropy of an isolated system always do what when natural processes occur?
  39. Physical Science
    The second law of thermodynamics forbids a heat engine to have thermal efficiency of what?
  40. Physical Science
    A sample of gas has its number of molecules halved, its Kelvin temperature doubled, and its volume halved. What is the new pressure, relative to the original pressure?
  41. Physical Science
    On a winter day the temperature drops from –5°C to –15°C overnight. If a pan sitting outside contains 0.49 kg of ice, how much heat is removed from the ice for this temperature change?
  42. Physical Science
    An ice tray with 175 g of water at 30°C is placed in a freezer at –9°C. How much energy must be removed from the water to lower its temperature to the freezing point?
  43. Physical Science
    If the volume and the number of molecules remain constant for a gas, a temperature increase causes the pressure to do what?
  44. Physical Science
    When 8 kcal of heat is added to 2.4 kg of a substance, its temperature increases 23 C°. What is the specific heat of the substance?
  45. Science
    Some animals, but not humans, have an organ called a gizzard located near the top of their digestive tract. This organ is small and can contain small rocks. It also has thick, muscular walls. Based on this physical description, which of the following is most likely to be the ...
  46. Physical Science 9
    when an electric current is passed through water 2 gasses are formed is this a chemical or physical change
  47. Physical Science 9
    when exposed to the same amount of heat for the same amount of time, a 3 g sample of copper will experience a greater temperature change then a 12 g sample of copper due to its smaller what?
  48. Physical Science 9
    a substance made of two or more elements chemically combined in a set ratio or proportion is called what
  49. Physical Science 9
    the contents of a can of air freshener are gaseous when sprayed but remain a liquid in the can due to what?
  50. Science
    do pure substances have different chemical and physical properties?
  51. stat
    A physician routinely makes physical examinations of children. She is concerned that a three-year-old girl has a height of only 87.8 cm. Heights of three-year-old girls have a mean of 97.5 cm and a standard deviation of 6.9 cm (based on data from the National Health and ...
  52. physical science
    a particle moves from rest and accelerated at 5.00m/s2. how long does it take to travel m?
  53. Physical Science
    X-rays can take pictures of your bones but visible light cannot. Explain why. Homework question, please and thank you!
  54. physics
    Under what conditions is mass conserved? A. Whenever the system is isolated or closed. B. Only when the change is a chemical one. C. Always. D. Only when the change is a physical one. I was thinking A.
  55. Science help
    A student combined water, sugar, and salt into a beaker. Which of the following statements are true? a. The individual substances can be separated by physical means.** b. The individual substances cannot be separated by physical means. c. A new substance is made of two or more...
  56. Health & P.E. pls check my answers!!!!!
    hi, can someone pls check my answers asap!!??? 1.Select the community activity that is a healthy choice to promote fitness for all ages A.annual 5K fun run for charity*** B.annual state fair C.monthly movie in the park D.monthly laser light show at the planetarium 2.Reginald ...
  57. physical science
    A horizontal force of 10 Newtons acts on a 2 kg block on a level surface.The frictional force between the block and the surface is 3 Newtons.What is the magnitude and the direction of the net force acting on the block?
  58. Physical Science
    Describe convection in a room heated by a radiator.
  59. Business Math
    As a newly hired staff accountant for Jordan Designs, you have been asked to conduct the year-end physical inventory. During the process, you observe that much of the inventory is outdated and there fore could not be sold for the recorded cost. You recommend to your manager ...
  60. Physical Science
    22. Why does a heat pump need an external source of energy (such as electrical energy)?
  61. physical science
    An airplane trvels with a velocity of 200 mi/h in a direction 30 deg. west of north of 1.50 h. How far north and how far west is it from its starting point?
  62. physical
    an airplane takes off at an angle of 30 to the horizontal. if the component of its velocity along the horizontal is 250 km/h , what is its actual velocity? also find the vertical component.
  63. health
    How can communities and government help promote physical activity initiatives? A. Raise taxes B. Lower taxes C. Eliminate sidewalks D. Create walking trails
  64. Chemistry
    Compare the physical and chemical properties of acids and bases.
  65. Chemistry
    Compare the physical and chemical properties of acids and bases.
  66. Physical Sciences
    A man with a mass of 80KG stands on a bathroom scale on the floor of a lift. Determine the reading of the scale if the lift moves downwards with a constant velocity at 2metre per second.
  67. Physical Science
    The air temperature on a certain day is 86 degrees F A)Convert to Celsius? B) Calculate the sound of speed in air? C)When a 653Hz tornado siren is turned on, the sound takes 2.3s to reach an observer. How far is the observer from the main siren, and what is the wavelength of ...
  68. Physical Science
    An ultrasonic wave in water is a compression wave that travels at 1,400 m/s A) An ultrasonic wave from a ship travels to the bottom of a lake and back in 0.16s. How deep is it at this point? B) If an ultrasonic wave is emitted in the ocean where the ocean's depth is 3.5km, how...
  69. (I need alot of help in) Physics
    So in physics lab we did an experiment with a cart with two different masses on a air track (practically eliminating kinetic friction). The track was tilted at 4 degrees. Using 4 photo-gates I got the speed of both gliders and the height at each point. I made two graphs making...
  70. PHYSICAL SCIENCE
    A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the average adult burns or expends about 0.45 Cal/h for every pound of body weight. How many Calories would a 179 lb person burn during 10 hours of sleep? (Note that 1 Cal = 1 kcal.)
  71. physical science
    A motorcycle starts from a standstill. In 15 seconds it reaches a velocity of 20 m/s. What is the motorcycle's average acceleration?
  72. Psychology
    Johnny is naturally outgoing and does not provoke easily. As he is also athletically inclined, he tends toward reflective introspection regarding strategies for game improvement. These attributes refer to Johnny’s ___________________. a.) physical development b.) maturity c...
  73. Science
    1.   Which of the following is an example of matter?  (1 point) leaves shadows light from the sun sound 2.   Which of the following is an example of a chemical property of matter?  (1 point) ability to melt ability to freeze ability to react ability to break 3.   ...
  74. Science help ms sue.
    Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements about the solar system’...
  75. Health
    As mixed-doubles teammates in tennis, Kara and Tran are trying to devise their best strategy against an opponent that has two excellent servers but his physical fitness level is not as good as Kara and Trans. How can Kara and Tran use their superior cardiovascular endurance to...
  76. careers in mathematics and physical sciences
    wt can i study with maths and physical sciences and life sciences besides engeenering thngs ?please help
  77. physical since,pure maths,life science
    wt cn i become? except all de engineering thngs?plz help
  78. Physical Science
    What is the hiker's total displacement? part a of the hike: distance:4km east start time: 9:00 am end time: 9:45 am part b: distance:6 km south start time: 9:45 am end time: 10:45 am part c: distance:4 km west start time:10:45 am end time: 11:15 part d: distance 6 km north ...
  79. Physical sciences
    If you were in the middle of a frozen pond explain how will you get off the pond without making the use of any exernal help
  80. Honors Physical Science
    An object is moving at 25 m/s and has a kinetic energy of 12,500 J. If the acceleration due to gravity on Mercury is about 3.8 m/s2 , what would be the weight of this object on Mercury?
  81. Social Studies
    Which statement best describes the physical geography of Arabia and Iraq? a. largely hot and dry with pockets of mountains and fertile river valleys b. tropical, with equal parts rainforest and desert. c. mountainous, with diverse terrain and climate based on altitude d. ...
  82. Physical Science-Can someone check my answers?
    1) The kinetic energy of an object depends on which of the following? A. the object’s mass and direction B. the object’s speed and mass---------- C. the object’s work and direction D. the object’s speed and work 2) In the following situations, which one does not have ...
  83. Biology
    Why do the physical characteristics of the overall population change? Why do some animals die and some thrive? In natural selections why do the animals die?
  84. Biology help
    Why do the physical characteristics of the overall population change? Why do some animals die and some thrive? In natural selections why do the animals die?
  85. Physical Science
    In what direction does heat flow? Why do particles of matter transfer thermal energy in this direction?
  86. Physical Science
    What form of energy provides power for a gas stove? That's Chemical Energy, right?
  87. Physical Science
    No system is completely closed off from its surroundings. Which represents a system that is almost completely closed? A. a capped soda bottle B. a wood-burning fireplace C. a washing machine D. a pot of boiling water I believe it is A.
  88. Physical Science
    Which has characteristics similar to a scientific model? A. a toy train B. a deep-sea submersible C. a planetary rover D. the Brooklyn Bridge
  89. Physical Science
    can I get some help with these questions. im not sure on these ones During the stage of internal combustion engine operation in which the piston rises and compresses the fuel in the combustion chamber, a. both the intake and exhaust valves are open b. the intake valve is open ...
  90. physical science
    the diameter of the planet saturn is 10 times that of the earth but the mass of the planet is only 90 times greater than that of the earth.what is the gravitational acceleration or number gs you will feel on saturn?(8.8m.s-2)
  91. physical science
    calculate the weight of a man with a mass of 80.0kg on the surface of the moon 156N?
  92. Physical science
    A box a weight of 100 N rests on a horizontal floor.The coefficient of static friction is 0,40 and the coefficient of kinetic friction is 0,30.DETERMISE THE FRICTIONAL FORCE ACTING ON THE BOX IF A HORIZONTAL FORCE IS APPLIED WITH A MAGNITUDE OF 0 N
  93. physical
    for a gaussin surface through which the net flux is zero the following 4 statements could be true which of the statements must be true a)tere are no charges inside the surface b)the net charge inside the surface is 0 c)the electric field is 0 everywhere on the surface d)the ...
  94. physical
    a 50 kg object moving at 12 m/s has a momentum of 600 kg times g m/s . what is the mass of an object moving at 4 m/s that has the same momentum?
  95. physical
    what is the size and direction of the final velocity of the two cars when a 0.4 kg toy train car moving forward at 3 m/s collides with and sticks to a 0.8 kg toy car that is traveling the opposite direction of -2 m/s
  96. physical science
    A frog jumps at the angle of 60 degrees to horizontal with initial velocity of 10.0m/s 1. calculate velocity Voy of the frog 2 calculate acceleration ax of the frog
  97. physical science
    A frog jumps at the angle of 60% to horizontal with initial velocity of 10.0m/s 1. calculate velocity Voy of the frog 2 calculate acceleration ax of the frog
  98. physical sciences
    a small brick mass 700 g is projected vertically downwards at a velocity of 1,25(m/s) from the top of a building of height 25m.calculate the magnitude of the velocity at which the brick hits the ground?
  99. English Speech Paper (can some1 revise it)PLZ&TY
    Gun Control I do not understand why people believe gun control actually works or why we need it. Guns, like other weapons, though more deadly and possibly more convenient to use, are still inanimate objects and are not the cause of violence or killings. Gun control is not ...
  100. geography
    1-20 can you please check my answers marked with *** which of the following were the main proponents of NAFTA? a. labor unions b. human rights groups c. environmentalists ***d. large corporations in the 1950s 40 percent of the u.s workforce was engaged in manufacturing by the ...
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