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August 30, 2014

Homework Help: Physical Education

Recent Physical Education Questions

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physics
The "steam" above a freshly made cup of instant coffee is really water vapor droplets condensing after evaporating from the hot coffee. What is the final temperature of 200 g of hot coffee initially at 90.0°C if 2.00 g evaporates from it? The coffee is in a ...
Saturday, July 20, 2013 at 8:53pm

Physical Science
Which of the following would reduce the resistance of a metal wire? A. increasing its thickness B. increasing its temperature C. increasing its length
Wednesday, July 17, 2013 at 1:31pm

Life orientation
Describe the life style disease/behavior and explain 5 factors that contribute to the lack of physical fitness and proper nutrition in the adolescent
Sunday, July 14, 2013 at 1:48pm

Life orientation
Describe the life style disease/behavior and explain 5 factors that contribute to the lack of physical fitness and proper nutrition in the adolescent
Sunday, July 14, 2013 at 1:31pm

statistics
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 ...
Saturday, July 13, 2013 at 10:29pm

Biology
Will you please check my answers? 1. Single-celled organisms that do not have a membrane-bound nucleus are called A. organelles. B. prokaryotes. C. Golgi bodies. D. eukaryotes. 2. In cells, a form of active transport is A. a sodium-potassium pump. B. osmosis. C. facilitated ...
Friday, July 12, 2013 at 6:40pm

Child Development
When preparing an environment for school- aged children the caregiver should ensure that the A. outdoor area allows them to continually challenge their physical ability B. Children are continually intermixed with the younger children C. Environment resembles their school ...
Tuesday, July 9, 2013 at 1:35pm

Help please criminal j.
1. In re Gault assured juveniles a. the right to a jury trial b. all the above c. due process in the legal system d. the right to be tried as an adult All the above 2. Obtaining a confession by__ is constitution a. misrepresentations b. psychologicalcoercion c. physical ...
Saturday, July 6, 2013 at 12:13pm

physical science
a string 0.5 m long is used to whirl a 1 kg stone in a horiziontal circle at a uniform velocity of 5m/s what is the tension on the string?
Saturday, July 6, 2013 at 9:11am

Health care
1. Wrongful death statutes create a right to collect damages for A. loss to the patient's estate of future earnings. B. loss to familial quality of life. C. punitive damages D. pain and suffering of the patient. My answer A 2. Elizabeth says duty of care is the obligation ...
Friday, July 5, 2013 at 11:10pm

English
1.The psychology of children coping with sexual abuse 2.Adolescents who commit suicide 3.Self-inflicted pain as a response to grief/abuse Throughout the years, many young women have always struggled for freedom to deal with the problems they have. Such difficulties, including ...
Friday, July 5, 2013 at 8:27pm

help please
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 ...
Thursday, July 4, 2013 at 7:07pm

physical science
A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. The student has a mass of 82 kg, and the height of the water slide is 11.3 m. If the kinetic frictional force does -6.2 × 103 J ...
Wednesday, July 3, 2013 at 6:36pm

Chemistry
The phrase “the heat absorbed or released by a system undergoing a physical or chemical change at constant pressure” is a. the change in enthalpy of the system. b. the change in internal energy of the system. c. the definition of a state function. d. the temperature ...
Tuesday, July 2, 2013 at 5:09pm

Physical science
Why are models important?
Sunday, June 30, 2013 at 11:57pm

World Geography
Moving from coastal to interior regions of sub-Saharan Africa, we discover that the dominant physical-geographic feature is A. many coastal inlets. B. lush rainforest. C. ascending plateaus. D. mountainous terrain.
Wednesday, June 19, 2013 at 4:20pm

World Geography
Moving from coastal to interior regions of sub-Saharan Africa, we discover that the dominant physical-geographic feature is A. many coastal inlets. B. lush rainforest. C. ascending plateaus. D. mountainous terrain.
Wednesday, June 19, 2013 at 12:20am

physics
Two 4.3 kg physical science textbooks on a bookshelf are 0.25 m apart. What is the magnitude of the gravitational attraction between the books
Tuesday, June 18, 2013 at 3:12pm

physical
David's clock ticks once for every two of Phil's clock ticks. How fast is Phil moving by David?
Monday, June 17, 2013 at 3:28pm

physical
Franky claims he has a mass of 65kg. He is sitting on a spherical bouy that oats just barely submerged under water. When he gets o it rises halfway out of the water. What must the radius R in centimeters of the sphere be for him to be telling the truth?
Monday, June 17, 2013 at 3:27pm

math
The physical education teacher marked off a triangular section of the gym to play a game. Two of the triangle's sides were 7 feet and 9 feet respectively. If the perimeter of the triangle is 22 feet, what is the measure of the triangle's third side?
Monday, June 17, 2013 at 12:33pm

Physical sciences
Copper reacts with silver nitrate according to the equation: Cu(s) + 2AgNO3(aq)= Cu(NO3)2(ag) +2Ag(s). If 0.50mol of copper is added to 1.5mol of silver nitrate , which is the limiting reagent and how many moles of silver are formed
Monday, June 17, 2013 at 10:22am

reading
30-day Money Back Guarantee Our Groom Co. electric shavers come with a 30-day money back guarantee because we are focused on ensuring your satisfaction. The only stipulation is that you use your new shaver exclusively for 2 weeks to become accustomed with the product. If you ...
Thursday, June 13, 2013 at 7:59pm

Precal
An indoor physical fitness room consists of a rectangular region with a semicircle on each end. The perimeter of the room is to be a 200-meter running track. a) Draw a figure that visually represents the problem. Let x and y represent the length and width of the rectangular ...
Thursday, June 13, 2013 at 10:05am

Precal
An indoor physical fitness room consists of a rectangular region with a semicircle on each end. The perimeter of the room is to be a 200-meter running track. a) Draw a figure that visually represents the problem. Let x and y represent the length and width of the rectangular ...
Thursday, June 13, 2013 at 10:04am

physical science
David builds a wood raft that weighs 100lbs (445 N). The bottom area of the raft is 4 meters and by 3 meters and the raft is 0.6 meters thick. When the raft is floats in water, what must the height of the water line be on the raft?
Thursday, June 13, 2013 at 2:21am

Physical Science
Because light travels in a straight line and casts a shadow, Isaac Newton hypothesized that light is A. a stream of particles. B. a wave. C. heat.
Wednesday, June 12, 2013 at 8:36pm

Physical Science
Which kind of light is used to carry information through optical fibers? A. fluorescent B. sodium-vapor light C. laser
Wednesday, June 12, 2013 at 8:32pm

physical science
what are variables of the practical investigation.
Wednesday, June 12, 2013 at 7:00am

Physical science
Find the acceleration of a hamster when it increases its velocity from rest to 10 in 2.4
Tuesday, June 11, 2013 at 11:40pm

World history
5. Which of the following statements about the physical geography of North America is true? A. The most geologically active region of North America is found along the West Coast. B. The ancient rock of the Canadian Shield covers about one-fourth of Canada. C. The Mississippi ...
Monday, June 10, 2013 at 1:27pm

Physical Science
1. A wave has a wavelength of 10 mm and a frequency of 5.0 hertz. What is its speed? A. 50 mm/s B. 50 hertz/s C. 2.0 mm/s D. 0.50 mm/s 2. Which type of mechanical wave needs a source of energy to produce it? A. a transverse wave B. a longitudinal wave C. a surface wave D. all ...
Thursday, June 6, 2013 at 8:07am

Physical Science
1. To what is amplitude related? B. the maximum displacement from the rest position C. neither A nor B D. both A and B 2. Suppose two waves collide and the temporary combined wave that results is smaller than the original waves. What term best describes this interaction? A. ...
Tuesday, June 4, 2013 at 4:21pm

physical sciences
to find out whether the amount of heat(gas) produced will depend on an increase on the concetration of HCL when HCL reacts with an excess Zn
Tuesday, June 4, 2013 at 3:49pm

physical sciences
to find out whether the amount of heat(gas)produced will depend on an increase on the concetration of HCL when HCL reacts with an excess Zn
Tuesday, June 4, 2013 at 3:28pm

Physical Science
1.Instantaneous speed is measured B. when the object reaches its destination. C. at a particular instant. D. over the duration of the trip. 2. A ball is rolled uphill a distance of 5 meters before it slows, stops, and begins to roll back. The ball rolls downhill 9 meters ...
Tuesday, June 4, 2013 at 1:27pm

CENCEPTS IN HEALTHCARE
what is the procedures and resources available for assisting patients who use English as a second language, who is hearing impaired, sight impaired, or who have any other type of physical or diversity related disposition that should be addressed to provide quality care to that...
Sunday, June 2, 2013 at 12:25pm

physical education
What nutritional supplement is recommended for helping the body handle stress? A. Zinc B. Iron C. Vitamin C D. No supplements are recommended for stress management I think its a but im not sue please help
Friday, May 31, 2013 at 12:08pm

physical education
is too much exersise and sports training without any rest good for health?
Friday, May 31, 2013 at 9:41am

physical geoprahy
Assume that a parcel of air is forced to rise up and over a 6000-foot high mountain (shown below). The Initial temperature of the parcel at sea level is 76.5 F, and the lifting condensation level (LCL) of the parcel is 3000 feet. The DAR is 5.5 F/1000' and the SAR is 3.3 F...
Tuesday, May 28, 2013 at 1:27pm

physical science
On a new temperature scale the steam point is 348 °X, and the ice point is 112 °X. What is the temperature on this scale that corresponds to 28.0 °C?
Thursday, May 23, 2013 at 5:54am

Psychology
When physical energy has resulted in a response in a sense organ, it is clear that: A. perception has taken place. B. the activation is the result of stimulus. C. the brain has interpreted the event. D. a single isolated sense is now perceiving the event. Answer:A
Wednesday, May 22, 2013 at 11:15am

physical science
you do 16,000 j of work on a 45 kg box intitally going 11.8 m/s. How fast is it going now?
Monday, May 20, 2013 at 7:56pm

Psychology
When physical energy has resulted in a response in a sense organ, it is clear that: A. perception has taken place. B. the activation is the result of stimulus. C. the brain has interpreted the event. D. a single isolated sense is now perceiving the event.
Monday, May 20, 2013 at 4:09pm

TEACHER AIDE,CHILDREN, FAMILIES, SOCIETE
1. Larry is a very aggressive four-year-old child. He watches many television programs that contain violence. It’s most likely that A. he will become overactive. C. his behavior won’t change. B. he will become depressed. D. his behavior will become more aggressive. 2...
Saturday, May 18, 2013 at 5:00pm

Introduction of Psychology
When physical energy has resulted in a response in asense organ, it is clear that:
Saturday, May 18, 2013 at 10:38am

World History
1. The purpose of American and European imperialism in the Pacific was mainly to gain. A. markets fro manufactured products B. coaling stations and naval bases C. sources of raw materials D. places for surplus population I said C. 2. The development of antiseptics during the ...
Friday, May 17, 2013 at 3:39pm

physical science
how many kilojoules of heat must be transferred to a 480-g aluminum pizza pan to raise its temperature from 22c to 234c
Thursday, May 16, 2013 at 1:49pm

geometry!!!! PLEASE HELP!!!!
There are 300 students at a local high school. On "All Students Exercise Day", Sam, the Physical Education instructor, wants them to line up in a perfect rectangular formation (same number of students in each row). However, there must be more than 1 student in each ...
Thursday, May 16, 2013 at 11:01am

Justice system
Detectives more typically focus their energies on homicide and rape cases, as opposed to burglary and robbery cases, because: A. there is political pressure to do so. B. the victims can more often provide clues that make the cases easier to solve. C. insurance companies can ...
Tuesday, May 14, 2013 at 4:02pm

physical science
If the mass of a plane is 2,500 kg and the net force on it is 14,000 N, what is the plane's acceleration?
Tuesday, May 14, 2013 at 10:35am

Physical Education
(a) Calculate the average blood velocity in the major arties given that the aorta has a radius of 1.0 cm, the blood velocity is 30 cm/s in the aorta, and the total cross-sectional area of the major arties is 20 cm2 (b) What is the total flow rate? (c) On the assumption that ...
Monday, May 13, 2013 at 10:29pm

Physical Science
Blood is pumped from the heart at a rate of 5L/min into the aorta of radius 2.0cm. Assuming that the density of blood 1x103 kg/m3 .Determine the velocity of blood through the aorta
Monday, May 13, 2013 at 3:41pm

Physical Science
A dentist’s chair with a patient in it weight 2100N. The output plunger of a hydraulic system begins to lift the chair, when the dentist’s foot applies of 55N to the input piston. Neglect any height difference between the plunder and the piston. What is the ratio of ...
Monday, May 13, 2013 at 2:25pm

Physical Science
- What is the kinetic energy ,KE, per unit volume V of blood that has a speed of 0.5 m/s. Take density ofĉblood = 1.0x103kg/m3
Monday, May 13, 2013 at 12:27pm

Physical Education
Suppose that blood flows through the aorta with a speed of 0.35 m/s. The cross-sectional area of the aorta is 2.0x10-4 m2. (a) Find the volume flow rate of the blood (b) The aorta branches into tens of thousands of capillaries whose total cross-sectional area is about 0.28 m2...
Monday, May 13, 2013 at 9:56am

Physical Education
A solid object floats on ethyl alcohol, with 68.2%of the object’s volume submerged .Find the density of the object. Take density of alcohol =806 kg/m
Monday, May 13, 2013 at 9:12am

physical chemistry
The system N2O4 <--->2NO2 maintained in a closed vessel at 60º C & a pressure of 5 atm has an average (i.e. observed) molecular weight of 69, calculate Kp. At what pressure at the same temperature would the observed molecular weight be (230/3)
Sunday, May 12, 2013 at 11:41am

physical science
How to unscramble this word isarntucio
Saturday, May 11, 2013 at 11:58pm

physical
A solid cylinder has a radius of 0.051 m and a height of 0.0030. The cylinder is composed of two different materials with mass densites of 1950 kg/m3. If each of the two materials occupies an equal volume, what is the mass of the cylinder?
Friday, May 10, 2013 at 10:03am

Psychology
When physical energy has resulted in a response in a sense organ, it is clear that: (Points: 5) perception has taken place. the activation is the result of stimulus. the brain has interpreted the event. a single isolated sense is now perceiving the event. I believe it is the ...
Friday, May 10, 2013 at 9:37am

LIFE ORIENTATION
LACK OF PHYSICAL FITNESS AND PROPER NUTRITION IN ADOLESCENT.DESCRIBE THE LIFESTYLE DISEASE.MENTION 5 FACTORS THAT CONTRIBUTE TO THE DISEASE.
Thursday, May 9, 2013 at 5:05am

physical scinsce
A cannon that is 10m long is designed to launch a 10kg ball over a castle wall. In order to do this the ball must have a speed of at least 50m/s as it exits the cannon. For every 10kg of explosives used, the force on the ball in the cannon increases by 1000N. How many kg of ...
Thursday, May 9, 2013 at 1:26am

Psychology
When physical energy has resulted in a response in a sense organ, it is clear that: (Points: 5) perception has taken place. the activation is the result of stimulus. the brain has interpreted the event. a single isolated sense is now perceiving the event. I believe it is the ...
Wednesday, May 8, 2013 at 10:59pm

life orientation
describe the lack of physical fitness and 5 factors that contribute to the disease?
Wednesday, May 8, 2013 at 5:40pm

physical science
if the maximum amount of water vapor in the air at 15 degrees c is 12.5 g/m^3, what is the actual amount of water vapor in the air if the relative humidity is 85.0%
Wednesday, May 8, 2013 at 9:39am

Science
Please check my answers (at the bottom) with these questions. 1. An apple quickly changes color when exposed to air. This demonstrates a ________. (1 point) physical property chemical property physical change all of the above 2. When a chunk of dry ice is at room temperature, ...
Tuesday, May 7, 2013 at 12:22pm

Health
WITH STARS IS MY ANSWER! (*) 1) A drug created by a chemical reaction in some foods, especially fruits and grains A= neurons B= cirrhosis C= alcohol ****** D= depressant 2) Being drunk A= intoxicated ****** B= withdrawal C= alcohol D= minor 3) Cells that make up the nervous ...
Monday, May 6, 2013 at 9:22pm

Physical Science
1. What is molarity of products? I can't decide if it's a. The concentration of the reactants measured in mol/L of solution or b. The concentration of the products measured in mol/L of solution 4. How does pressure relate to reaction rates? I'm stuck between a. ...
Monday, May 6, 2013 at 7:28pm

Chemistry
For the following battery: Cd(s) | CdCl2(aq) || Cl–(aq) | Cl2(l) | C(s) (a) Write the reduction half-reaction occuring at the C(s) electrode. (Include physical states of reactants and products.) C(s) electrode:? (c) Calculate the mass of Cl2 consumed if the battery ...
Monday, May 6, 2013 at 5:48pm

Physical Science
1. What is molarity of products? I can't decide if it's a. The concentration of the reactants measured in mol/L of solution or b. The concentration of the products measured in mol/L of solution 4. How does pressure relate to reaction rates? I'm stuck between a. ...
Monday, May 6, 2013 at 12:35pm

Physical Science
if a blue object is placed in front of the screen, what color will it be? explain the answer.
Sunday, May 5, 2013 at 1:51pm

Physical Science
A car of mass 900 kg moves at 10 m/s. What is the braking required to stop the car in a time of 5 seconds
Sunday, May 5, 2013 at 1:34pm

physical aspects
A 600 lb. oak packing crate is sitting on a cross grained, 14 ft long, oak ramp. The force of the box against the ramp is 520 lbs, and the downhill force on the box is 300 lbs. Will the box slide down the hill all by itself? Give the box a nudge, will it stop? If the box will ...
Sunday, May 5, 2013 at 8:21am

Physical Science
10. The more compact a metal is, the less brittle it becomes. -True? I'm confused about this one because of what the textbook says: "the more compact the atoms become, the harder the metal becomes. While the compactness makes the metal hard, a fracture on any boundary...
Thursday, May 2, 2013 at 8:24pm

Physical Science
10. The more compact a metal is, the less brittle it becomes. -True? I'm confused about this one because of what the textbook says: "the more compact the atoms become, the harder the metal becomes. While the compactness makes the metal hard, a fracture on any boundary...
Thursday, May 2, 2013 at 11:26am

Physical Science
6. In order to turn 2 iron atoms into rust, 2 water molecules must be present. -False?
Thursday, May 2, 2013 at 7:07am

physical science
A nail is driven into a board to a depth of 1.00 cm with one strike from the hammer. The hammer striking the nail hit it with a force of 200.00 Newtons. How much work was done?
Wednesday, May 1, 2013 at 6:29pm

life oreination
5 factors that contribute to a lack of physical fitness and proper nutrition in the adolescent
Wednesday, May 1, 2013 at 9:53am

Speech
Please rephrase the following sentences into a more simple manner. I need to give a presentation and i would like to write this out simpler. Thank you guys Research of soil erosion is difficult for several reasons, but particularly because soil erosion is an intermittent ...
Wednesday, May 1, 2013 at 6:16am

physical science
If a sample emits 1000 counts per second when the detector is 1 meter from the sample, how many counts per second would be observed when the detector is 2 meters from the sample?
Monday, April 29, 2013 at 4:35pm

LANGUAGE ARTS UGRENT!!!
1. What's the fastest way to find out how many individual letters are quoted in the article? A: Count the number of photos in the article. B: Read the article. C: Count the heads and subtract the first head. D: Count the number of footnotes. 2. Where should you insert a ...
Monday, April 29, 2013 at 2:20pm

life orientation
Descrise the Factors that contribute to lack of physical fitness and proper nutrition in the adolescent
Monday, April 29, 2013 at 1:58pm

physical science
define earth station
Monday, April 29, 2013 at 11:46am

History
Well I have been working on an essay for a couple days now about slavery, here it is: Slavery began in the 16th century, but ended in the 19th century. Slaves went through a lot of torture then, but some blacks now still deal with some of the problems the slaves had back then...
Sunday, April 28, 2013 at 4:31pm

Physical Science
Four balls are taken to the top of a building. Ball 1 is dropped (zero initial velocity). Ball 2 is thrown straight up with a velocity of 3 m/s. Ball 3 is thrown straight out with a horizontal velocity of 3 m/s. Ball 4 is thrown straight down with a velocity of 3 m/s. Which ...
Sunday, April 28, 2013 at 1:36pm

Physical Education
Is a drug a food?
Sunday, April 28, 2013 at 10:54am

physical sciences
plan,design and conduct an investigation to find out wether the amount of heat produced will depend on an increase on the concentration of HCL when HCL reacts with an excess Zn
Sunday, April 28, 2013 at 5:17am

physical science
The shape of water molecule is (A)tetrahedral (B)linear (C)angular (D)trigonal planar
Sunday, April 28, 2013 at 3:23am

Physical Science
A park ranger wants to shoot a monkey hanging from a branch of a tree with a tranquilizing dart. The ranger aims directly at the monkey, not realizing that the dart will follow a parabolic path and thus will fall below the monkey. The monkey, however, sees the dart leave the ...
Saturday, April 27, 2013 at 3:26pm

life orientation
Provise five or more ways in which you critically discuss how lack of physical fitness and proper nutrition impacts on a teenager?
Saturday, April 27, 2013 at 12:55pm

English
To avoid speaking in monotone, a strategy to use can include: A. changing pitch and tone of voice. B. voice inflection. C. varying rate and pace of speaking. D. All of the above i'm confused betwen A & D 2. Which nonverbal consideration creates immediate impressions among ...
Friday, April 26, 2013 at 1:02pm

physics for physical science
(a)what is the magnitude of the gravitational force of the earth on a surveillance satellite of mass 1040kg that is in a grazing circular orbit 100 km above the surface of the earth. (b)find the magnitude of the acceleration of the satellite in such a grazing orbit. (c)...
Friday, April 26, 2013 at 11:27am

physics for physical science
a bullet of mass 0.015kg strikes ballistic pendulum of mass 2.0kg .the center of mass of the pendulum rises a vertical distance of 0.12m.assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed.
Friday, April 26, 2013 at 10:56am

physical science
plan,design and condact an investigation to find out whether the amount of heat produced will depend on an increase on the concentration of HCl when HCl reacts with an excess Zn.
Thursday, April 25, 2013 at 5:08pm

7th Grade Language- Arts Ms.Sue~!
3. Where should you insert a colon in this sentence? Interview the following people Dave, Barb, Jose, and Mary Ann. (1 point) after following after people after Jose nowhere 4. Which sentence does not include an abbreviation? (1 point) The movie starts at 12:45 p.m. Dr. Ross ...
Wednesday, April 24, 2013 at 7:49pm

Physical science
A ball is thrown up at 8m.s from the roof which is 60m high.it strikes the balcony below after 4s.the ball then bounces off the balcony and strikes the ground.ignore the effects of friction.calculate magnitude of the velocity at which the ball strike the balcony?
Wednesday, April 24, 2013 at 4:08pm

7th Grade Health Ms. Sue
1. The body's functions are slowed when alcohol reaches where? (1 point) The stomach The heart The liver The brain 2. Which statement is NOT true? (1 point) Regular use of alcohol can lead to addiction. Alcoholism can be cured. Someone cannot cause someone else to drink. ...
Wednesday, April 24, 2013 at 2:09pm

Science/DUE TODAY
please help!!! quick!!! How is a polar bear adapted to living in a desert? (behavioural and physical)!!! write something that is a good answer and that i can understand.
Tuesday, April 23, 2013 at 2:28am

Health
What physical changes do individuals encounter at the first stage of stress (alarm)?
Monday, April 22, 2013 at 7:22pm

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