Physical Education

  1. Physical Science
    An elephant drags a tree trunk along a rough horizontal surface by means of an attached rope which makes an angle of 30° with the horizontal. The force in the rope is 4 000N. CALCULATE the horizontal component of the force exerted by the rope on the tree trunk
  2. Physical Science
    Like water, hydrogen fluoride, HF, and ammonia, NH3, have relatively high boiling points. Explain. A.The polar molecules of each of these materials have relatively strong attractions for themselves, which translates to relatively high boiling points. B. Since these molecules ...
  3. Physical Science
    If an element has a +1 positive charge and the following chemical symbol, how many electrons does it have? 17 on top, 6 on bottom, Oxygen (O) A. 7 B. 17 C. 5 D. 18
  4. Physical Science
    Why is metal shiny? A. The electrons absorb each light wave. B. The loose electrons reflect most wavelengths of light. C. The electrons emit light due to electronic excitation. D. The electrons transmit most wavelengths of light. (I think the answer is B, but I am not positive)
  5. Honors Physical science
    Lesson 13 force and motion unit test. I need 1-62
  6. Science
    What effect does observing a substance's physical properties have on the substance?
  7. Science
    1) If you let all of the liquid evaporate out of the pitcher, would you be able to see the solid particles of the drink mix? Explain. 2)Compare what happens when a geyser erupts to what happens when a tea kettle whistles. 3)Name something made of aluminum and explain why ...
  8. Effective Learning Environment
    Alea is developing a classroom for the infants she cares for who are ages six weeks through eight months. Which of the following centers would be appropriate to include? A. A physical center with pull-up railing B. A doll center C. An art center with watercolor paints D. A ...
  9. physical science
    Luster Malleable Ductile Conductor Solid at room temperature Which element could be described by the list of properties above?
  10. Physical Science
    A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 26.0° below the horizontal is applied to the box. What is the minimum coefficient of static friction between the box and the surface required for the box to remain stationary? 1) 0.441 2...
  11. 9th grade physical science
    the density of copper is 8.92g/cm^3. If you plotted the mass of copper in grams versus the volume in cubic centimeters, what would the slope of the line be?
  12. Physical Ed
    Could you help me with this please? 1. Telling a child that he won't amount to anything in life is a form of A. neglect B. emotional abuse (My answer) c. physical abuse d. sexual abuse
  13. Check answers please: Health
    1. When reading a recipe's ingredients, which substance makes the recipe an unhealthy choice if it is present in a high amount? A. Fiber B. Protein C. Trans fat*** D. Unsaturated fat 2. Of the five food groups, which one should be consumed in the smallest amount? A. Dairy*** B...
  14. physical educatioin
    Your target heart rate _____.
  15. physical science
    two forces of 60 and 80 newton respectively act simultaneously at the point ...sketch and determine their resultant force using tail to tail method and tail to tail method
  16. physical science
    Look at the graph below measuring the speed of a truck and answer the following 2 questions: a) If the graph represents speed, what is measured on the x and y axes? You need to specifically identify which axis is which. b) Based on what the y axis measures, explain the motion ...
  17. physical science
    Look at the graph below measuring the speed of a truck and answer the following 2 questions: a) If the graph represents speed, what is measured on the x and y axes? You need to specifically identify which axis is which. b) Based on what the y axis measures, explain the motion ...
  18. physical science
    If you push a 900N refrigerator with the same force as you lift a 40N dumbbell, the dumbbell will move faster. which of Newton’s laws is this an example of? Explain how you know please. i know it's not the 3rd law.
  19. Physical sci
    The Density of aluminum is 2.70 g/cm3. What volume does 2000 g occupy?
  20. Physical Education
    5. Select the answer below that best describes how you can increase the intensity of your workout. (1 point) A. exercise more often B. increase the speed of a run, amount of weight lifted, or distance a muscle is stretched C. Increase the length of time of each training ...
  21. Dating with Radioactivity HELP!!!
    1. In what type of rocks would geologists most likely find evidence of past life forms? igneous rocks metamorphic rocks volcanic rocks sedimentary rocks** 2. The physical, chemical, and biological laws that operate today have also operated in the geologic past. This statement...
  22. P.E (Physical Education
    what would be a good way to improve your own health and the health of others within the school community?
  23. Physical Sciences
    Is a diamond a pure substance, homogeneous or heterogeneous mixture?
  24. Dating with Radioactivity
    1. In what type of rocks would geologists most likely find evidence of past life forms? igneous rocks metamorphic rocks volcanic rocks sedimentary rocks** 2. The physical, chemical, and biological laws that operate today have also operated in the geologic past. This statement ...
  25. physical science
    How much heat is absorbed by a 30g iron skillet when its temperature rises from 24oC to 93oC? Joules do i addition everything?
  26. Check my answers, Physical science
    my answer has the **** 1. What is the smallest part of all matter called? (1 point) * a. Element b. Atom***** c. Molecule d. Compound 2. Which of the subatomic particles is negative? (1 point) a. Nucleus b. Neutron c. Proton d. Electron*** 3. Who provided the first evidence ...
  27. Physical Science
    Rank from largest to smallest atomic radius. To rank items as equivalent, overlap them. O, S, Se, Po, Te
  28. Spanish
    Which popular physical activity in the Spanish-speaking world would you prefer to participate in? Why? Write you answer using as many Spanish words as possible. What are some Spanish-speaking world activities?
  29. ELA
    Jarren's training and improved diet give him ______ Which of these best completes the sentence to express the idea that Jarren is in peak physical condition? 1. (vigor) 2. ambition 3. muscle 4. fatigue Ms.Sue is this right
  30. physical science
    Two forces of 60N and 80N act a point .sketch a tail to head diagram and determine their resultant
  31. AP Chemistry Help!!
    When you light a candle, the paraffin wax soon begins to melt. Paraffin wax is a covalent compound. Can you classify the melting of the wax as a chemical change or a physical change? If so, which is it? If you cannot classify it as chemical or physical, explain why not. ...
  32. children's literature
    Creativity supports problem solving in children and is what type of activity? A. Cognitive activity B. Physical activity C. Social activity D. Emotional activity D?
  33. physical science
    in a tug of war the left team pulls with a force of 300N and the right team pulls with a force of 150N. what is the resultant force?
  34. Physical science
    Explain whether the size of an object’s displacement could be greater than the distance the object travels.
  35. PE
    What is an example of flight path of projectile force and range? Explain from start to finish, the flight path of a projectile in the physical activity you chose.
  36. Physical Science.
    I need help answering this inferring question because I don't fully understand it. Q: Infer whether the size of an object's displacement could be greater than the distance the object travels.
  37. Maths, Accounting, Life Orientation, Life Science, Physical Science, English and my home language (sepedi)
    Could I become a social worker with those subjects?
  38. Language Arts
    I am doing an essay question, and I just wondered if someone would answer a simple question, of wether they think that the story "Marriage is a private affair" shows external conflict. I beleive it does because external conflict is physical, and comes from other sources, and ...
  39. health and physical education
    Using the excitement of violence to keep video games users to playing their games is an example of which risk factor? A. poverty B. family violence C. media violence D. availability of weapons
  40. Chemistry
    Label the following changes as CHEMICAL or PHYSICAL change 1. Fat reacting with sodium hydroxide 2. Chemical A originally is buoyant in water; after it mixed with HCI, the new substance now sinks in water Label the following reactions as exothermic or endothermic 1. Ammonium ...
  41. Science
    Fat reacting with sodium hydroxide Is this a chemical or physical change My answer is chemical is this right answer Chemical A originally is buoyant in water; after it mixed with HCI, the new substance now sinks in water. My answer is physical change. Is this right?
  42. Physical Science
    A step-up transformer has primary coil with 15 turns. How many turns would be required in the secondary coil to increase the voltage from 60 v to 160 v? 15 x=160/80 x=80/15 x=?
  43. Physical Science
    Question: Suppose you have sunlight shining on two clear containers of water on a table. Light waves refract through one of the containers but diffract around the other container. Describe how the two containers are different. (I have to write three lines, it's not a lot) ...
  44. Physical science
    two forces of 5N and 12N respectively act on the same how you would determine the magnitude of the resultant by using the tail to head and tail to tail methods and Pythagoras theorem
  45. Health
    1. To eat more healthful and decrease your calorie intake, MyPlate recommends that you eat breakfast, lunch, and dinner with no snacks in between meals. eliminate starchy vegetables like potatoes, corn, and lima beans that are high in carbohydrates. drink fruit juice for extra...
  46. Physical Science
    If element X has 81 protons, how many electrons does it have?
  47. Physical science
    the crest of wave A has an amplitude of 5 cm. the trough of wave B has an amplitude of 2 cm. if the crest of wave A combines with the trough of wave B,what will be the amplitude of the resulting wave? will the waves form a crest or a trough when they combine?
  48. Health and Physical Education
    1. When you wake up and a large pimple greets you when you look into the mirror, this endocrine gland is to blame. thymus gland reproductive gland (my answer) thyroid gland pancreas
  49. Physical science
    Determine the centripetal acceleration of an automobile making a tight turn that has a radius of 256 m, if the is traveling at a velocity of 25.0 m/s as it turns.
  50. Physical science
    What was Jack's speed from 5 sec to 10 sec
  51. geo
    Hi... I need some URGENT help with my geography essay, I'm suppose to have three reasons to why canada is the best country and I'm looking for a 3 strong arguments ... i have 2 already down , economy and physical geography . I need to have 11 paragraphs in total. so that means...
  52. physical science
    How much heat is absorbed by a 70g iron skillet when its temperature rises from 24oC to 110oC? joules
  53. physical science
    A pendulum has 501 J of potential energy at the highest point of its swing. How much kinetic energy will it have at the bottom of its swing? joules
  54. physical science
    What is the speed of a bobsled whose distance-time graph indicates that it traveled 107m in 26s?
  55. science
    if there was a source of pollution in Smithtown bay, what role could a physical oceanographer play in understanding the impacts to other parts of long island sound?
  56. Physical Science
    Sodium (Na) reacts with chlorine gas (Cl2) to form sodium chloride (NaCl) as shown in the equation 2Na+Cl2=2nacl If 4 moles of sodium react, how many moles of chlorine gas will react? I have no idea what to do.......... I need some assistance thanks
    A sample of methane gas of mass 35 g at 250 K and 12.5 atm expands isothermally until its pressure is 1.5 atm. Determine the change in entropy of the gas.
  58. Physical science
    If you use a 29m second-class lever to lift a 1000 N load exactly in the middle of the lever, and you lift the lever 1.5m high, how high do you lift the load?
  59. physical science
    The gas in a cylinder has a volume of 3 liters at a pressure of 106 kPa. The pressure of the gas is increased to 208 kPa. Assuming the temperature remains constant, what would the new volume be? = ....L?
  60. physical science
    If the mass of a material is 99 grams and the volume of the material is 22 cm3, what would the density of the material be? (in g/cm3) i don't know how to find the answer.
  61. 9th grade physical science
    I'm really confused on how to do this, Can someone help walk me through? An object is placed in front of a concave mirror as shown in the diagram below. A. Draw at least two rays that demonstrate how this mirror produces an image. (4 points) Image B. Describe the image formed ...
  62. Science
    1) What physical features do producers and consumers have to help them survive in their environment
  63. Philosophy
    There are a variety of major distinctions that people always use to describe the Plato's Republic section we have read. The distinctions are: -The appearances vs.reality, -One vs. the many, - Forms/ideals vs. physical objects. After doing the reading, describe how you ...
  64. Math
    Using his driver on the 7th tee, Chris hits an excellent shot, right down the middle of the fairway. The ball follows the parabolic path shown in the figure, described by the quadratic function: h(x)=0.5x-0.002x^2. This relates the height, h, of the ball above the ground to ...
  65. English
    The scarlet letter "dark and abundant hair, so glossy that it threw off the sunshine with a gleam" "her beauty shone out, and made a halo of the misfortune and ignominy in which she was enveloped." Fine at least 2 phrases that describe the physical nature of Hester prynne. For...
  66. Social Studies
    Could you help me with these questions? 1. Which statement best explains the significance of the signing of the Mayflower Compact? * 2. What was a major reason for the colonization of the Americas by Europeans? * 3. Which reason led to the establishment of colonies in both ...
  67. English
    What are some personality and physical characteristics of coyotes?
  68. Science
    What is When digital information is superimposed on a physical environment (two words)
  69. Science
    What is When digital information is superimposed on a physical environment (two words)
  70. PHYS-041-Keiler: Physical Science
    A prehistoric bone is found at an excavation site. If the bone originally contained 22 kg of carbon−14, how much would remain after 11,400 years?
  71. physical education
    what are the reason for the olympic games to be largest of all sporting events
  72. history
    1. Which statement best explains the significance of the signing of the Mayflower Compact? * 5 points A)The colonists swore to survive together or die in North America. B)The colonists agreed to create their own government and to obey its rules. C)The colonists declared their ...
  73. Physical Science
    How much energy is released when 10 gm of steam at 100 degree Celsius turns to ice at 0 degree Celsius
  74. Physical Science
    A 68.4-g sample of potassium chloride was added to 200.0 g of water at 20 C. Is the solution saturated, unsaturated, or supersaturated?
  75. Physical Science
    When iron metal reacts with oxygen, the reaction can form Fe203. The balanced chemical equation I think is right is 4 Fe + 302----2Fe203. So I have 4 moles of iron + 3 moles of oxygen creates 2 moles of iron oxide. I need to find the number of moles of oxygen that are needed ...
  76. Physical Science
    Materials: Epsom salts (MgSO4), ammonia (NH4OH) small jar or cup measuring cup Procedures 1. Dissolve 1 teaspoon of Epsom salts in a half cup of water. 2. Add 2 teaspoons of ammonia to the Epsom salts solution and stir thoroughly. Record your observations. 3. Allow the mixture...
  77. physics multiple choice MCQ 1- i need help please @all respective sir & bro
    which of the following variable controls the physical properties of a perfect gas? a. pressure b. temperature c. volume d. all of the above e. atomic mass
  78. Physical science
    A 100.0g sample of water at 20.0C is heated to steam at many heat was absorbed?
  79. Physical chemistry
    Find ΔG and ΔA for the freezing of 1.00 mol of H20 at 0°c and 1atm. At 0 ° C and 1 atm the density of ice and liquid water are 0.917 g / mL and 1 g / mL, respectively.
  80. Physics
    A certain number of identical resistors are connected in series and their total resistance is measured. When the resistors are disconnected and re-connected in parallel, their total resistance drops to one-percent of the value measured when they were connected in series. How ...
  81. Physical Science
    How much Cerium sulfate is needed to make a saturated solution in 100mL of water at 30 degrees Celsius?
  82. physical science
    4.8g of magnesium react was completely burned in oxygen and magnesiumoxide was produced. what is the mass of magnesium produced?
  83. Physical geography
    Identify the glacial term that corresponds to each of the following. I'm stuck on these two. Thanks for the help Melting by wind: Sudden massive melting:
  84. Health
    3. Which is not a health professional who treats mental and emotional disorders? A psychiatrist B neurologist C social worker D psychologist 4. Arachnophobia, the fear of spiders, is an example of a(n) A. Personally disorder B. Anxiety disorder C. Mood disorder D. Impulse-...
  85. Physical Educationcal Educationcal
    What is the role of 1mile running? ( like important things, teaching points ) I need to find for P.E. class.. Please introduce me some good websites
  86. geography
    What physical features are significant in the locations of the major cities of the Middle East? Thanks!
  87. Physical
    A toy rocket is launched vertically from ground level (y = 0 m), at time t = 0.0 s. The rocket engine provides constant upward acceleration during the burn phase. At the instant of engine burnout, the rocket has risen to 73 m and acquired a velocity of The rocket continues to ...
  88. Physical
    Determine the pressure at bottom of an open tank if it contains layers 10 cm of oil, 30 cm of water and 5cm of mercury. Given that the densities of oil, water, and mercury are 850 kg/m^3, 1000kg/m^3 and 13600kg/m^3 respectively.
  89. Physical
    An object of mass 100 kg is tied to the bottom of a pond with a light chain. If the tension in the chain is 200 N, what is the mass of water displaced by the object ?
  90. Physical
    A cubical block of wood of side 0.5 m floats in water. Given that the densities of wood and water are 800 and 1000 kg/m3 respectively Calculate the depth of the block immersed in water.
  91. physical chemistry
    The ice skate of a 210-pound hockey player is in contact with the ice over a 2.5mm x 15cm area. Determine the freezing point of the ice under the blade of the skate?
  92. physical chemistry
    Calculate the freezing point of water at a depth of 10.0 cm below the surface of the water. The density of the water is 0.9998 g/cm3
  93. Chemistry
    Which one of the following is NOT a physical process? A. Dry ice subliming B. Steam condensing C. Alcohol evaporating D. Melting ice E. Gold plating jewelry
  94. computer
    the physical comonents of a computer are called software
  95. English
    What is the thesis statement in this essay? Instead of using emails, mail a letter to your grandparents, an aunt or uncle, or another role model who’s older than you are. We live in a fast-paced world. We use computers to send emails and instant messages. Some, though, don...
  96. Health and Physical Education
    BMI is a ratio to? •Height to body fat •Weight to height •Muscle mass to bone mass •weight to activity level
  97. Physical Science
    A bullet is fired with an initial speed of 200 m/s. If a target is 500ft away, at what angle should the rifle be raised in order to hit the target?
  98. Science HELP!!
    Compare and contrast the roles of genetic factors and local conditions in determining physical traits Contrast dominant, recessive, codominant, and incomplete dominant traits and give examples of each Summarize the process of sexual reproduction and explain how variations of ...
  99. history
    i'm writing an essay comparing indentured servants and slaves. can you just read what i have so far and correct errors in grammar and how I word my sentences. thank you Between the 16th and 18th centuries, cheap labor, agriculture and mercantilism ensured a thriving economy in...
  100. Physical
    A motor car travelling at 14m/s on dry flat surface should be able to stop in 14m.Assuming the deceleration to be uniform. Given: its value and the corresponding bracking time is -7m/s^2 , 2 sec Calculate the distance travelled during the first second after the application of ...
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