Physical Education

1. Calculus 1
The resistance of blood flow, R, in a blood vessel is dependent on the length of the blood vessel, the radius of the blood vessel, and the viscosity of the blood. This relationship is given by R = 8Lη/πr^4 where r is the radius, L is the length, and the positive ...
2. Physical Science
A 5.00 kg block of ice at –25 oC is converted to steam at 125 oC. How much energy (in kilojoules) is expended in this process? The following data are provided: a. Specific heat of ice = 2.092 J/g oC b. Latent heat of fusion = 334.72 J/g c. Specific heat of water = 4.184 J/g ...
3. Physical Science
Lead is a soft, dense metal with a specific heat of 0.117 J/goC, a melting point of 328.0 oC, and a heat of fusion of 23012 J/g. How much heat (in kilojoules) must be provided to melt a 350.0 kg sample of lead that is initially at 20 oC?
4. Physical Science
Jill walks 1 mile everyday for exercise, leaving her front porch at 9:00 A.M. and returning to her front porch at 9:25 A.M. What is the total displacement of Jill's walk?
5. ga history
1. which economic activities are most dependent on georgia's climate? a lumber and mining b imports and exports c agriculture and tourism d transportation and telecommunications 2. the boundary between the piedmont and the coastal plain is known as the a foothills b fall line ...
6. Physical Science
A hockey puck moving at 28 m/s is caught by an 80.00 kg man who was at rest. The man and the puck move together after the collision. The pucks mass is 0.16 kg. What is the final velocity?
7. Theories and issues in working with school-age chi
Lawrence Kohlberg created the preconventional, conventional, and postconventional levels in _______ development. A. physical B. social C. cognitive D. moral D.
8. Theories and issues in working with school-age chi
Being able to balance one's checkbook is an example of a _______ skill. A. psychological B. physical fitness C. domestic D. social B.
9. Physical Chemistry
Please help, about real gas deviation from ideal behavior. when we plot graph against P and PV, at 17¡ãC,: for H2, there's straight ascending line. for N2, line a little curved at low P then become ascending straight like H2. for CO2, line curved, very descending at low P, ...
10. Physical Education help
The body's reaction to information is to send these to the brain. A. Neurons B. Impulses C. Dendrites D. Synapse Is the answer B? Thank you
11. Physical Education help
When diving into water, it is important to look before diving to avoid (blank) that could damage your nervous system. A. Deep water B. Underwater hazards C. Living creatures D. Water toys Is the answer B? Thanks
12. Physical Education help
The part of the brain that controls movement and balance is the A. Cerbrum B. Cerebellum C. Brain stem D. Frontal lobe Is the answer B? Thanks
13. Physical Science
Consider lead, in what state will it be at each of the following temperatures? a) 4000 degrees Celsius, b) 40 degrees Celsius, c) 400 degrees Celsius, d) 327 degrees Celsius.
14. statistics
The physical plant at the main campus of a large state university receives daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 46 and a standard deviation of 9. Using the empirical rule (as presented...
15. Physical Science
Beginning at rest, you accelerate at a rate of 2.5 m/s^2 for 12 seconds. What is your final velocity?
16. Physical Science
why is the kinetic energy of the lumber higher on the truck during the delivery than when it drops from the carpenter's shoulder?
17. Physical Science
Explain the role friction plays in the conservation of energy.
18. HEALTH AND P.E ONE QUESTION HELP!!!!!!!!!!
which of the following is not a cause of mental or emotional illness A.) Physical factors B.) heriditiy C.) Values D.) early experiences
19. health
What can architects do to help promote physical activity initiatives?
20. physical science
calculate the force output by the larger piston of a hydraulic lift when a force of 700 newtons is excerted on the smaller piston and the areas of the two pistons are 20cm and 950cm squared.
21. Persuasive Essay (Please, help me!)
Please, help me! I'm struggling to write my persuasive essay that must be completed by tonight. I don't know know whether that which I have written makes sense. I don't know what else to write, either! My essay is about why high school students should be exempt from taking the...
22. planning & implementing for the environment
Which of these factors is most likely to determine the total number of children you can take into your facility? A. Children's needs B.Physical space available C.program philosophy D.staff members skills B.
23. Physical Science
A long distance swimmer, who is very cold, m=100 kg., 1000 kilocalories are supplied to warm them up. The specific heat for a human is 0.83. A) What will be the temperature change? B) If the original temperature is 85 degrees, find the final temperature.
24. Physical Science
A piece of aluminum, mass 40 kg. C= 0.2 kilocalories/kg.(degrees), change in temperature =20degrees, find Q, in kilocalories.
25. Physical Science
The sand on the beach heats up faster each day than the water does. You know this because when you walk on the beach in the early morning, your feet are cool. By noon, the beach is so hot, you cannot walk on it in bare feet . The ocean, however stays cool. Which one has the ...
26. physical
A 1.67-kg block (M1) and a 5.07-kg block (M2) are connected by a massless string. Applied forces, F1 = 11.3 N and F2 = 4.85 N, act on the blocks, as shown in the figure. a) What is the acceleration of the blocks?
27. physical chem
calculate work when 1mol of H2O is heated from 0-100 degrees C at fixed pressure of 1atm.
28. Persuasive Essay
Will someone help me organize my persuasive essay? I've decided to write about the FITNESSGRAM and why high shcool students who have taken the required courses of physical education should be exempt from it.
29. planning & implementing for the environment
Which of these factors is most likely to determine the total number of children you can take into your facility? A.Children's needs B. physical space available C. Program philosophy D. Staff members skills My answer is B
30. Chemist - Grade 9 - Urgent.
Predict the physical properties and relative reactivity of Ba and Sr Cs and Br ( elements from periodic table )
Predict the physical properties and relative reactivity of Ba and Sr Cs and Br ( elements from periodic table )
32. statistics
show me Police academy acceptance exams to qualify for a police academy, applicants are given a test of physical fitness. the scores are norally distributed with a mean of 64 and standard deviation of 9. if only the top 20% of the applicants are selected find the cutoff score?
33. Chemistry
Predict the physical properties and relative reactivity of Rb, Cs, and Fr (From the periodic table)
34. Physical Science- Math skills
Rachel is asked to calculate the density of a liquid. She correctly measures the mass of the liquid to be 14 grams, but she incorrectly measures the volume of the liquid to be 10 mL. The actual volume of the liquid is 9 mL. If Rachel uses the following equation to calculate ...
35. Physical Science
A box has a mass of 90 kg If the box is accelerating upward at 1.0m/s2, what is the tension of the cable?
36. Differential Equations
Consider the system shown below of two masses of mass m, coupled together between two fixed walls via springs with varying spring constants. Let x(t) and y(t) be the horizontal displacements of the two masses as a function of time. (a)Write down a system of differential ...
37. Statistics
As part of studying the relationship between mental and physical health, you obtain the following heart rates: 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78 In terms of differences in heart rates, interpret these data using the following: (a) the range, (b) the variance...
38. physical
A body of weight 150N is supported by a thin cord attached to a point in the ceiling. Another cord is attachedto the weight and pulled horizontally until the supporting cords makes an angle of 30 degree with the vertical. Draw the diagram of the arrangement and calculate the ...
39. Algebra
40. Science: Plate Techtonics (giving out medals)
Hey there! I need help with some answers 1. Why do earthquakes occur along the San Andreas fault line? 2. Which of the following causes Earth's plates to move continuously? 3. Which of the following physical features are not caused by plate tectonics? PLEASE HELP! giving out ...
41. statistics
The physical plant at the main campus of a large state university receives daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 42 and a standard deviation of 10. Using the empirical rule (as ...
42. Health
13. How does regular exercise help to reduce the effects of mental stress? A. People who regularly exercise are happy people and are fun to be around. B. Regular exercise gives you better mental discipline, so you're better able to ignore stress. C. Regular exercise gets you ...
43. Chemistry
A pure white solid material that looks like table salt releases gas when heated under certain conditions. There is no change in the appearance of the solid, but the reactivity of the material changes. Did a chemical or physical change occur? How do you know? Was the original ...
44. Physical geography
On the windward side of the mountain,should the relative humidity of the parcel change as it rises from 2000 m to 4000m?
45. physical science
using the cinetic theory explain what caused gas pressure
46. Physical Education
It is important to choose simple carbohydrates for breakfast to get you started for your day. True False True?
47. P.e
The physical need to eat food is called A. hunger B. appetite C. Psycological desire. D. nutritional value A?
48. Physical Education
The body's main energy source should come from what essential nutrient? A. Protien B. Fat C. Carbohydrate D. Minerals D?
49. physical science
A piston applies a pressure of 5,000 N/m2 if the piston has a surface area of 0.1 m2 , how much for can the piston apply?
50. physical science
A 2-kg ball of putty moving to the right has a head-on inelastic collision with a 1-kg putty ball moving to the left. If the combined blob doesn’t move just after the collision, what can we conclude about the relative speeds of the balls before they collided?
51. SOC 101
Checking my Answers: 1. The Sociological insight can provide which of the following: (Points : 1) Knowledge of group behavior Insight into individual behavior Increased understanding of differences *All of these choices Question 2. 2. Which is the best type of literature for ...
52. Geography
Should geographers regard culture and social customs as generalizations about a group of people, or should they say it comes from people's interaction with the physical environment?
53. Intro to Physical Science
Lucy the elephant jumps straight up from ground level with a speed of 6 meters/second. With what speed will she have just before she reaches the ground on her way back down? With no friction and then with friction.
54. physics
A 74.0kg person is put on an exercise program by a physical therapist, the goal being to burn up 550 food calories in each daily session. Recall that human muscles are about 21.0% in converting the energy they use up into mechanical energy. The exercise program consists of a ...
55. Intro to Physical Science
A diver (mass 100kg.)drops from a height of 12 meters and reaches the pool below at ground level. 3550 joules of heat energy are generated due to friction. With what speed will the diver hit the water?
56. History
Which best describes why the Neolithic Revolution was such an important turning point in history? A- people began to control their physical environment for the first time B- religion emerged as people planted and harvested crops C- metal tools allowed strong rulers to conquer ...
1. What event started the French Revolution? A: The fall of the Bastille started the French Revolution. 2. How did Napoleon assume power in France and become emperor? A: As a popular general, Napoleon assumed power in France by taking part in the coup d'état of 1799 that ...
58. World History Answe Check
How does Jacques-Louis David portray Napoleon in the painting Napoleon Crossing the Alps? Why do you think Napoleon wanted artists to produce portraits like this one? A: David portrays Napoleon as being calm and mounted on a fiery steed. I think Napoleon wanted artists to ...
59. physical
A robot probe drops a camera off the rim of a 230 m high eliff on Mars where the free fall acceleration is 3.7 m/s^2. Find the velocity with which it hits the ground.
60. Chemistry
What is the total ionic equation of this: 3CaCl2(aq) + 2K3PO4(aq) → Ca3(PO4)2(s) + 6KCl(aq) Shw all physical states of the reactants and products
61. Chemistry
Bones are mostly calcium phosphate. Calcium chloride reacts with potassium phosphate to form calcium phosphate and potassium chloride. Indicate the physical states or reactants and products a) Write the balanced equation of the information above b) Determine the total ionic ...
62. Chemistry
Anyone know how to go about the problem? I don't know how to do it. Assume a professor has a daily special request for her coffee. She likes to have the 250.0 mL of coffee frozen at -15.0°C overnight and then wants it heated to 95°C when she gets there in the morning. Δ...
63. Calculus I
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
64. Child care
6. Local, state, and provincial governments may have specific regulations that apply to the physical space in a day care center. A typical requirement in these regulations is a minimum of _______ square feet of usable play space for each child. A. 35 (B). 18 C. 10 D. 24
65. calculus
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
66. calculus
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
67. Physical Science
Superfly, mass of only 1 gram, but capable of flying 840 million km/hr. meets a locomotive with a mass of 20,000 kg, traveling 40 km/hr. Who has the greater momentum? I know I need to convert mass to kg and covert momentum in Kg-Km/hr. I just don't know how. Please help.
68. Physical Science
Johnson ran the 100 meter dash in 9.79 seconds. Calculate Johnson's average speed, in meters/second.
69. PHYSICS
Use dimensional analysis to determine the pressure, P, in the pipe to within a dimen- sionless multiplicative constant of order 1.(Hint: P may depend on another physical variable besides A and R.) Using your result from part (a), reexpress your answer in a form that involves v...
1. The best way to describe fitness is: being slim and low in body fat being big, strong, and “buffed” being flexible and having a sense of overall well-being *** all of the above 2. The best way to describe wellness is: making positive choices *** folding under peer ...
71. P.E
If you're concerned about factors associated with mental illness, ypu don't need to worry about A. Herditary B. Virus infections C. Physical factors D. Early experiences. Is the answer B?
72. physical science
Two 3.4 kg physical science textbooks on a bookshelf are 0.25 m apart. What is the magnitude of the gravitational attraction between the books?
73. physics
Two 2.5 kg physical science textbooks on a bookshelf are 0.25 m apart. What is the magnitude of the gravitational attraction between the books?
74. Physical Science
A heat pump releases 103.0 kcal as it removes 54.0 kcal at the evaporator coils. How much work does this heat pump ideally accomplish? The answer should be in KJ
75. Physical Science
A 12 kilogram tire is to be pulled by three ropes. One force, F1, has a magnitude of 50N. Orient the other two forces so that the magnitude of the resulting acceleration of the tire is least. And find that magnitude if: F2=30N, F3= 20N.
76. physical science
The present record for the 100 meter dash is 9.58 seconds. back in 1988, Johnson ran the 100 meter dash in the world record time of 9.79 seconds. He was later to lose both his record and his gold medal to runner up Lewis because of steroid use. Calculate Johnson's average ...
77. physical science
Superfly, mass of only 1 gram, but capable of flying at the incredible speed of 840 million km/hr, meets a locomotive with a mass of 20,000 kg, traveling at 40km/hr. Who has the greater momentum?
78. Physical Science
at a speed of 30 mi/hr, the car crashes head on into a brick wall. despite the fact that the car crunched to a total stop, one of NEWTON'S laws predicts that you will continue to fly forward at 30 mi/hr until you collide with the windshield or dash. WHICH LAW?
79. Physical Science
Superfly, mass of only 1 gram, but capable of flying at the incredible speed of 840 million km/hr, meets a locomotive with a mass of 20,000 kg, traveling at 40km/hr. Who has the greater momentum?
80. Physical Science
The present record for the 100 meter dash is 9.58 seconds. back in 1988, Johnson ran the 100 meter dash in the world record time of 9.79 seconds. He was later to lose both his record and his gold medal to runner up Lewis because of steroid use. Calculate Johnson's average ...
81. physical science
one gallon= 3.785 liters. If you were charged \$1.10 per liter at the pump for Regular, how much would you be paying per gallon? Assuming American price levels, do we stop at this station or drive on?
82. Physical Science
You are driving. You have enough gas in your tank to go 50 miles. The next town is 72 kilometers away. Can you make it? Show work.
83. Science
Classify each as a physical characteristic or chemical property. -wood burns -clay is brown -steel wool rusts -a paper clip is 3cm long
84. curriculum
Which of the following is not a good strategy for a teacher to use in making transitions fun? A. Help children come down the hall quietly by pretending to "sneak" past the director's office, varying what they pretend on different days. For example, they can sneak one day, come...
85. ss-maps *repost* (sorry!)
What is the difference between a road map and a bird's-eye view map? A. A road map shows fewer road names than a bird's eye view map. B. A road map looks more photo-realistic than a bird's-eye view map. C. A road map shows more physical features such as trees ad buildings than...
86. physical science
the distance from one place to another is 80 miles. How far is it in kilometers?
87. Physical Science
Ok, I just want to make sure I am doing this right. It says mass= 3800grams. Silvers density is 10 grams/cm^3. How much will volume of water with silver displace in cm^3? So would it be 3800g/10g= 380 grams? or is that wrong?
88. types of maps
What is the difference between a road map and a bird's-eye view map? A. A road map shows fewer road names than a bird's eye view map. B. A road map looks more photo-realistic than a bird's-eye view map. C. A road map shows more physical features such as trees ad buildings than...
89. Physical Science
Suppose an all good crown has mass m=3800 grams. Gold has a density of 19 grams/ cm^3. What is the volume of water displaced by a gold crown (in cm^3)? Please help :)
90. Physical Science
A 73.0 g silver spoon at 19.2 c is place in a cup of coffee at 91.2 c. How much heat does the spoon absorb from the coffee to reach a temperature of 85.6 c?
91. Physical Science
A 1600.0 kg car with a speed of 75.0 km/h brakes to a stop. How many cal of heat are generated by the brakes as a result?
92. Physical Science
please help me understand this question If measurements of a gas are 50L and 300 kilopascals and then the gas is measured a second time and found to be 75L, describe what had to happen to the pressure (if temperature remained constant). Include which law supports this ...
93. Physical Science
Why does a glass filled with a cold beverage seem to sweat? a. saturation always results in sweat on wet object. b. the cold glass adjacent air to saturation, which is followed by condensation of water vapor. c. when cold, water molecules can move through tiny pores in the ...
94. Physical Science
A heat engine exhauts 122.0 kal after taking 499.0 how much mechanical work was done by the engine?