Physical Education

  1. All about DRAMA! P.S. - Please check!
    1. Which of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China. b. The Grand Canal in China is a man-made waterway, still used, that is the oldest in the world. c. The Grand...
  2. Chemistry-DrBob222
    What is the final temperature and physical state if water when 47.50 kJ of energy is added to 15.0 g of ice at -10.0 C? Helpful information: Cs (ice) = 2.1 J/g C Heat of fusion (water) = 6.02 kJ/mol Cs (water) = 4.184 J/g C Heat of vaporization (water) = 40.7 kJ/mol Cs (steam...
  3. PHYSICS
    Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high speed on his skateboard, would collide with some...
  4. Physical education
    the male reproductive cells are called 1. ova**** 2. teste 3 sperm 4 ovaries
  5. Physical science
    What are photons
  6. Social studies
    Over time artwork has the potential to reach a wide variety of audiences. Which is the most accurate definition of audience? A group of people listening to music. Physical evidence of a culture. A group of people with specific beliefs and practices. (This one or D) The people ...
  7. Art
    1.Artists make shapes in the background smaller than shapes in the foreground to communicate their distance from the viewer. How else might a landscape artist show shapes in the background to depict their distance from the viewer? A. Show shapes with bright colors. B. Show ...
  8. PHYSICS ( PERIODIC MOTION)
    A grandfather clock uses a physical pendulum to keep time. The pendulum consists of a uniform thin rod of mass M = 2.01 kg and length L = 0.19 m that is pivoted freely about one end, with a solid disk of mass 3M and a radius of L/4 attached to the free end of the rod. a) What ...
  9. social studies
    Which physical feature covers most of Arabia? empty quarter>>> fertile crescent zagros mountains Persian gulf
  10. Maths, geography, life sciences and physical scien
    Identify three courses or study fields you are interested in following after grade 12.provide two reasons why you find this a suitable course for each choice
  11. Physical science
    A 11-kg box is dragged across a frictionless surface by a force F=55N. the box travels 4.0ft. what is the work done by the applied force F and the work done by the normal force?
  12. physical science
    a symmetric projectile spends a total of 20 seconds in the air. it reaches a peak height of 8 meters. how long does it take to reach its peak height? the projectile has a range of 80 meters. what is its horizontal velocity? what is the projectile's horizontal acceleration? ...
  13. physical science
    a flower pot is dropped out a twentieth story window. how fast will it be moving after 7 seconds? how much is the acceleration 3 seconds after it falls?
  14. physical science
    a piece of metal has a mass of 85 cg and a volume of 450L. What is its density in g/cm^3? What would be the mass of 300cm^3 of this metal? What would be the volume of 200 ounces of this metal?
  15. physical science
    how many centimeters long is the proverbial "10 foot pole?" show work
  16. Physical Education
    When you are a baby, your bones begin as what type of tissue? a. cartilage (MY ANSWER) b. cells c. ligaments d. muscle
  17. Physical Education
    what is the best activity to do immediately after playing tennis? A.Drink plenty of juice and sit in the shade to cool your body down. B.Stretch the leg muscles by bouncing to reach as far as you can each time. C.Stretch your leg muscles by slowly bending over and exhaling ...
  18. Physical Education
    What type of muscle is only found in one place in the body? Cardiac muscle. (MY ANSWER) Ligament muscle. Skeletal muscle. Smooth muscle.
  19. Chemistry
    Hydrogen sulfide gas burns in the presence of oxygen to produce sulfur dioxide gas and water vapor. Write a balanced chemical equation, including the physical state
  20. Chemistry- Dr.Bob
    What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is the physical state of water liquid? The explanation from bobpursly was this The sum of heats gained =0 80(cice)(0+15)+80Hf+80cw(...
  21. physical sciences
    john wants to get his friend, peter, to a height of 2.8 m above the ground to reach an apple in a tree. they connect a swing to a high branch in an adjacent tree. the bottom of the swing, X, is at a height of 1.2 m. peter has s mass of 45 kg. ignore the effects of any ...
  22. Chemistry-Dr.Bob 222
    What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is the physical state of water liquid? I still don't understand how to do this.
  23. Chemistry
    What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is the physical state of water liquid? I don't understand the set up. The setup is like this (answered by bobpursly): The sum of ...
  24. Chemistry
    What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is the physical state of water liquid? I don't understand the set up that I have to set the equation equal to 0 ...
  25. Science
    1. How does nanotechnology how engineers make products for the future? A. By changing a materials atomic structure, it can be made from elements that are easier to obtain. B. By changing a materials atomic structure, it's physical properties can also be changed. C. By changing...
  26. REPOSTHealth PLEASE CHECK ANSWERS
    1. According to the National Clearing House for Alcohol and Drug Information (NCADI), most children under the age of _____ , who do not participate in drug and alcohol abuse, is virtually certain to never do so. 20 21**** 23 19 2. The average age when youth first try alcohol ...
  27. Science
    Physical properties of silver carbonate.
  28. Science
    Johnny left a glass of milk on his bedside table for week, and it spoiled. At the end of the weel, the glass contained a yellow liquid with lumpy white chunks, and there was a terrible odor. What can be concluded? A. The milk has undergone a physical change B. The mass of the ...
  29. Art
    A peice of japanese armor was once used to protect the head of soldiers. This work has since been replaced by twenty-first century fighting gear, but the orginal armor is on display in a museum. This change over time is an example of? 1. A once-functional piece of equipment ...
  30. Chemistry
    What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is Tf= 109 C? Is it in the steam phase?
  31. Physics
    When the body temperature drops, this has the effect of reducing the potential across the axonal membrane slightly. At a body temperature of 30°C, the potential difference experimentally measured concentration of Na+ ions inside the lipid bilayer is 10^18 NA+ ions/cm^3. a) ...
  32. Health Truth or False PLEASE CHECK ANSWERS
    $$ = MY ANSWER Just as a person inherits physical traits, a person inherits personality traits as well. True $$ False 2. Peers cannot have a direct impact on your personality. True $$ False 3. Your behavior and personality sometimes come directly from role models. (1 point) ...
  33. physical science
    a crate of cooldrinks with a mass of 15kg over a smooth horizontal surface by exerting a force of 80N at 30° to the horizontal. Draw a diagram and aswers the following 1. Draw a force diagram showing and labelling all the forces acting on the crate. 2. Calculate the vertical ...
  34. Physical science
    a balloon has a volume of 0.5 L at 20 degrees celsius. what will the volume be if the balloon heated to 150 degrees celsius? assume constant pressure and mass. I got 0.7218 L.
  35. physical sciences
    The mass of a minibus is 1500kg,assume that the passenger have an average mass of 50kg each.The driver is moving at a speed of 30m/s when he notice that the traffic light ahead have turned to red.he applied a force of 9000N on the break pedal,calculate acceleration of the taxi...
  36. PHYSICAL SCIENCE
    Imagine two billiard balls on a pool table. Ball A has a mass of 2 kilograms and ball B has a mass of 3 kilograms. The initial velocity of ball A is 9 meters per second to the right, and the initial velocity of the ball B is 6 meters per second to the left. The final velocity ...
  37. Physical Science
    Suppose the jumbo jet of mass 30000 kg flies against an air resistance of 82000 N while the thrust of all four engines is 100000 N. Find the acceleration
  38. Social Studies
    1. Which BEST describes the differences that divide Maayan and Muhammad? A. age and interests B. physical barriers C. culture and politics** D. economic status 2. How does Maayan most directly experience the conflict in Israel? A. through treating victims of terrorist attacks...
  39. Health and Physical Ed
    If you choose to smoke, your body will use this substance less efficiently. 1:microorganisms 2:carbon dioxide 3:plasma 3:oxygen I think it is #3
  40. physical science
    a head ball of mass 600g is thrown vertically upwards from ground level and reaches the maximum height of 20metres.calculate the initial velocity of the ball
  41. ashworth
    In an interrogation setting, the strategy of fabricated evidence involves all of the following EXCEPT: A. falsely informing a suspect that an accomplice has ident6ified her or him. B. falsely stating that physical evidence exists that confirms his or her guilt. C. projecting ...
  42. Health
    What physical symptoms often accompany social phobia A. Difficulty talking B. Trembling C. Nausea D. All of the above
  43. Physical science
    How much more does someone with a bachlors degree usually earn than someone with a high school deploma?
  44. Physical science
    What are some of the reasons for income differences?
  45. Physical science
    What is the force of gravity between two 1215 kg cars separated by a distance of 31m on an interstate highway
  46. physical sciences
    Calculate the mass in kilograms of one atom of ununhexium
  47. science chemistry
    A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.03 nm. It then gives off a photon having a wavelength of 396.9 nm. What is the final state of the hydrogen atom? Values for physical constants can be found here.
  48. Physical Science
    4. What measurable property/properties affects the period of a pendulum? 7.Give another example of periodic motion other than simple harmonic motion. 8. If you landed on the moon, could you use the pendulum method to find "g" there? Explain.
  49. Health
    1. According to the National Clearing House for Alcohol and Drug Information (NCADI), most children under the age of _____ , who do not participate in drug and alcohol abuse, is virtually certain to never do so. (1 point) 20 21 23 19 2. The average age when youth first try ...
  50. Physical Science
    A small fish in the pacific ocean watches a shark swim by a large rock a few meters away. Which of the following is a reference point in this scenario? A. shark ** B. large rock C. water D. pacific ocean I think the answer is A, please check!
  51. Physical Science
    A car of mass m traveling at a velocity of 20m/s east on a straight level road and a truck of mass 2m travelling at 20m/s west on the same road. ignore the effects of friction. calculate the velocity of the truck-car system immediately after collision. On impact the car exerts...
  52. physical science
    a car accelerates from rest at stop street and covers 10m east in 45.calculate the acceleration of the car(assume uniform acceleration).
  53. Sciences
    What is a substance that cannot be separated into simpler substances by physical or mechanical methods such as filtering, boiling, or sifting? A crystalline solid A sublimation A pure substance •• An amorphous solid Correct me if I'm wrong
  54. Math
    If a valid time on a 12 hour time period has the hour hand and minute hand switched, how many times will that result in another valid time? I have found 11, which is when the hour hand points at the same place as the minute hand. I know there is much more, but I can't figure ...
  55. physical science
    a flywheel given its angular velocity of 200radian per second and an acceleration of 5radian per second squared in 15minutes.what is angular velocity in radian per second and revolution per minute
  56. Geography of Arabia and Iraq
    Question #1: 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 ...
  57. Earth Science
    Which of the following climates is most suited for physical weathering? A. Warm B. Dry (C. Hot) D. Cool What latitudes are most likely to see glaciers? (A. 90° N and 90° S) B. 30° N and 30° S C. 45° N and 45° S D. 10° N and 10° S
  58. Earth Science
    Which of the following climates is most suited for physical weathering? A. Warm B. Dry (C. Hot) D. Cool What latitudes are most likely to see glaciers? (A. 90° N and 90° S) B. 30° N and 30° S C. 45° N and 45° S D. 10° N and 10° S
  59. Calculus
    If a valid time on a 12 hour time period has the hour hand and minute hand switched, how many times will that result in another valid time? I have found 11, which is when the hour hand points at the same place as the minute hand. I know there is much more, but I can't figure ...
  60. Physical Science
    Which SI unit is used to measure length? A. meters B. newtons C. grams D. liters
  61. Geography and Society
    A relief map shows what kind of information about a location? a. physical features b. political boundaries c. elevation*** d. population density
  62. Maths lit,geography,physical science and life science
    Wich career should i follow
  63. physical science
    Determine the magnitude and direction of a resultant force on 500N,200N and 300N by calculating or by accurate construction and measurement use scale 10mm=50N
  64. Physical Education
    Explain two physical reasons why players should warm up before playing sport.
  65. Physical Education
    Explain the term 'target zone' and 'training thresholds', and how they should be used.
  66. Physical Education
    Describe the Cooper's 12 minute-run test. (4 marks)
  67. Social Studies
    In what way is geography an integrative science? a. Geography is an integrative science because it examines Earth in both physical and human terms.*** b. Geography is an integrative science because it borrows from physical sciences such as chemistry, biology, meterology, and ...
  68. Social Studies
    What does “geography” mean in literal sense? a. the study of the human elements of Earth b. to describe Earth*** c. the study of the physical elements of Earth d. none of the above
  69. Calculus PLEASE HELP! PLEASE PLEASE PLEASE
    A long, straight wire of length 2L on the y-axis carries a current I. According to the Biot-Savart Law, the magnitude of the magnetic field due to the current at a point (a,0) is given by B(a)= (mu sub 0 multiply by I) divided by 4pi times the integral from -L to L of (Sine ...
  70. math (desperate help, please.
    A long, straight wire of length 2L on the y-axis carries a current I. According to the Biot-Savart Law, the magnitude of the magnetic field due to the current at a point (a,0) is given by B(a)= (mu sub 0 multiply by I) divided by 4pi times the integral from -L to L of (Sine ...
  71. Physical science
    Describe how to determine the ideal machanical advantage of each type of simple machine How are the lever and the wheel and axle related?
  72. Science
    1) 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 ...
  73. criminal justice
    Schlomo occasionally drinks beer with friends. His drinking doesn’t interfere with his job or personal obligations. He gets a pleasant “buzzed” feeling from two beers and doesn’t feel a need to drink more. Alcohol has not caused him any physical or psychological ...
  74. Physical science
    What is the current produced by a 9volt battery flowing through a resistance of 2*10 ohms
  75. physical science
    A golfer on a level fairway hits a ball at an angle of 38° to the horizontal that travels 85 yd before striking the ground. He then hits another ball from the same spot with the same speed, but at a different angle. This ball also travels 85 yd. At what angle was the second ...
  76. Physical sciences
    A ball is thrown vertically upwards at 4ms-1 and returns yo the throwers hand.calculate the maximum height reached by the ball
  77. Physical Science
    At a baseball game a ball of mass m = 0.11 kg moving at a speed v = 22 m/s is caught by a fan. the ball is stopped in 0.014 s , find the average force of the ball on the catcher's hand?
  78. Science
    Plz correct me!! A student combined water, sugar, and salt in a beaker. Which of the following statements is true? (1 point) The individual substances can be separated by physical means. The individual substances cannot be separated by physical means.* A new substance is made ...
  79. English
    Identify the choice that best describes the problem. To run a four-minute mile, excellent physical condition is important. a. phrase fragment b. dangling modifier*** c. run-on sentence d. misplaced modifier
  80. Physical Science
    QUESTION---Which waves have wavelengths longer than those of visible light? MY ANSWER--Infrared light, microwaves and radio waves have wavelengths longer than visible light. Radio waves have the longest wavelength. Are there any others?
  81. Physical Science
    I am having trouble coming up with an answer to this, and I can't seem to find it in my textbook....can I get a little help? QUESTION---Explain why the speed of sound is faster in solids than in gases
  82. Physical Science
    QUESTION GIVEN---Thermal conductors don’t have to be hot to transfer heat. According to Ch.16, explain a situation when an ice cube would still transfer heat to another object it is in contact with. MY ANSWER---Because, the ice may be trying to transfer cold, but if the ...
  83. Physical Science
    A ferromagnetic material is A) always a magnet B) a magnet if it's domains are aligned C) a magnet if it's domains are not aligned D) never a magnet I think it is A....
  84. Physical sciences
    Two forces A and B act at a point O. A=30 N at 60 degree and B= 40 N at 120 degree, relative to x-axis. Calculate the magnitude and direction of the resultant force using the method of perpendicular components.
  85. Physical Science
    You drop a water balloon off of a tree branch, and you time the drop time at Δt = 1.16 sec, from the instant you drop it to the instant it impacts the sidewalk. What is the height of the tree branch?
  86. Physical Science
    The current in a hair dryer measures 15.0 amps. The resistance of the hair dryer is 8 ohms. What is the voltage? A. 120 V B. 0.5 V C. 7 V D. 1800 V I tried this and got D but it was wrong....can I get a little help on how to do this?
  87. Physical education URGENT PLEASE HELPPPP
    Explain how sprinters use flexibility. Explain how javelin throwers use flexibility. Explain how gymnasts in floor routines use flexibility.
  88. Physical Education
    Explain the difference between muscular endurance and cardiovascular fitness.
  89. Physical Education
    Explain how sprinters use flexibility. Explain how javelin throwers use flexibility. Explain how gymnasts in floor routines use flexibility.
  90. Science
    1. Which of the following is true about mixtures? (1 point) Mixtures consist of two or more substances chemically combined. Mixtures cannot be separated by physical means. Mixtures consist of only one kind of atom. Mixtures have two or more substances mixed together, but are ...
  91. Physical Chemistry - please help!
    Question: 0.19 litre of an ideal monatomic gas (Cv,m = 3R/2) initially at 83 °C and 47 atm pressure undergo an expansion against a constant external pressure of 1.19 atm, and do 2.3 kJ of work. The final pressure of the gas is 1.19 atm. Calculate the change in enthalpy, Δ...
  92. English
    Can someone please check my answers for finding the subject and verb these sentences? The milk in the back of the refrigerator is probably spoiled by now. S= milk V= is spoiled The family that lives in the brown house moved in just a month ago. S= family V= moved Jackie, Gwen'...
  93. Physical Education
    When playing doubles in Badminton which player returns the birdie on a serve?
  94. Physical Education
    What are 5 differences between badminton and pickleball?
  95. Chemistry
    The solidified carbon dioxide, dry ice, is used as the refrigerant to temperatures of 78 °C order What physical state of carbon dioxide at 25°C and 1 atm?
  96. physical science ,maths ,life science,geography
    Which marks I must get to become a doctor?
  97. PHYSICAL SCIENCES
    TWO FORCES OF 60N AND 80N RESPECTIVELY ACT SIMULTANEOUSLY AT A POINT .SKETCH AND DETERMINE THEIR RESULTANT BY USING TAIL TO HEAD METHOD
  98. Physical science
    The density of lead is 11.35 g.cm .what will be the mass in kilograms of a 2dm sample of lead?
  99. PE
    If you increase your time spent doing physical activity, how will it influence your diet and maintenance of a healthy weight?
  100. Physical Education
    Mandy wants to win the local youth tennis tournament next fall. Her coach has said that her serve is powerful enough, but she suggests Mandy train with a jump rope to improve her ability to cover more ground on the court when she’s playing. Why would her coach suggest using ...
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