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July 24, 2014

Homework Help: Health: Physical Fitness

Recent Homework Questions About Physical Fitness

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chemistry
Consider the following equations. For each, decide whether it represents a chemical reaction or a physical change. a. SnCl4(aq) + 4H2O(l)  Sn(OH)4(s) + 4HCl(aq) b. 4K(s) + O2(g)  2K2O(s) c. NaCl(s)  Na+(aq) + Cl-(aq)
Sunday, July 3, 2011 at 1:31pm

physics..
A physical quantity 'x'is calculated from the relation x=a^3b^2/root of cd. Calculate percentage error in x, if a, b, c and d are measured respectively with an error of 1%,3%,4% and 2%
Friday, July 1, 2011 at 8:56am

physical science
A football player picks up.the football runs with it and throws it to a teammate, during which of these actions is work being done on the football?
Thursday, June 30, 2011 at 9:05pm

physical science
the speed of light is 3*10^8 m/s. Red light has a wavelength of 7 * 10^-7 m. What is its frequency?
Thursday, June 30, 2011 at 2:33pm

physics..
A physical quantity 'x'is calculated from the relation x=a^3b^2/ãcd. Calculate percentage error in x, if a, b, c and d are measured respectively with an error of 1%,3%,4% and 2%.
Thursday, June 30, 2011 at 4:05am

physical science
A object that has a mass of .25kg is moving with a momentum of 5 kg„ªm/s. What is its velocity?
Tuesday, June 28, 2011 at 11:50pm

physical science
A marble is rolling at a velocity of 1.5 m/s with a momentum of 0.10 kg m/s. What is its mass?
Tuesday, June 28, 2011 at 11:48pm

physical science
A steel ball whose mass is 2.0 kg is rolling at a rate of 2.8 m/s. What is its momentum?
Tuesday, June 28, 2011 at 11:47pm

physical science
When you are driving a golf ball, a good follow-through helps to increase the distance of the drive. A good follow-through means that the club head is kept in contact with the ball as long as possible. Why does this technique allow you to hit the ball farther?
Tuesday, June 28, 2011 at 11:30pm

physical science
When you are driving a golf ball, a good follow-through helps to increase the distance of the drive. A good follow-through means that the club head is kept in contact with the ball as long as possible. Why does this technique allow you to hit the ball farther?
Tuesday, June 28, 2011 at 11:30pm

physical science
how much heat must be added to 1.0 kg of water at 100 degrees Celsius to convert it to steam at 100 degrees Celsius? i know that normally when the temperatures are the same, the heat added is zero, but i think that in this case i need to do something different.
Tuesday, June 28, 2011 at 2:34pm

physical science
There are two set pieces in a theater sitting on platforms with wheels. One is a tree with a mass of 50 kg. It is moving at 3 m/s. The other is a fence with a mass of 30 kg. If the two set pieces have equal momentum, how fast is the fence moving
Tuesday, June 28, 2011 at 11:00am

physics pls help
A sound source producing 1.00-{\rm kHz} waves moves toward a stationary listener atone-half the speed of sound. The frequency that the listener will hear is2000 Hz. when the source is stationary and the listener moves towardthe source at one-half the speed of sound, the ...
Tuesday, June 28, 2011 at 9:43am

Chemistry
Write a balanced net ionic equation (include physical states) for the following reaction: Fe(NO3)3(aq) + LiOH(aq) → LiNO3(aq) + Fe(OH)3(s)
Monday, June 27, 2011 at 10:14am

Chemistry
If a solution of sodium phosphate, Na3PO4, is poured into seawater, precipitates of calcium phosphate and magnesium phosphate are formed. (Magnesium and calcium ions are among the principle ions found in seawater.) Write net ionic reactions for the reactions. Include physical ...
Monday, June 27, 2011 at 10:13am

Chemistry
Write equations for the dissociation of the following in water. Include physical states for all species. CaCl2 (NH4)2SO4 NaC2H3O2
Monday, June 27, 2011 at 10:13am

physical science
A rocket blasts off. In 10.0 seconds it is at 10,000 ft, traveling at 3600 mph. Assuming the direction is up, calculate the acceleration. 5280 ft/sec2 528 ft/sec2 100 ft/sec2 100. ft/sec2
Monday, June 27, 2011 at 6:59am

physical science
A rock tied to a string is swung around in a circle at a constant speed of 25 ft/sec. The length of the string is 1.765 ft. Calculate the acceleration. = _____ . 354.1 ft/sec2 350 ft/sec2 14.16 ft/sec2 14 ft/sec2
Monday, June 27, 2011 at 6:59am

physical science
A weight attached to a wire is swung in a circular path. Its speed is 12 meters/sec, and it has a centripetal acceleration of 9.0 meters/sec2. Calculate the diameter of the circle. 1.3 meters 2.6 meters 16 meters 32 meters
Monday, June 27, 2011 at 6:58am

physical science
While traveling south on an expressway, a car traveling 60 mph (miles per hour) slows down to 30 mph in 12 minutes due to traffic conditions. Calculate the acceleration. = -2.5-6.0-150-450 mi./hr2 NSWEn/a
Monday, June 27, 2011 at 6:57am

physical science
If a car goes along a straight road heading east and speeds up from 45 ft/sec to 60. ft/sec in 5 sec, calculate the acceleration. = Note: If the speed were given in miles per hour, and the time were given in minutes, you could change the minutes to a fraction of an hour and do...
Monday, June 27, 2011 at 6:56am

physical science
If a car goes along a straight road heading east and speeds up from 45 ft/sec to 60. ft/sec in 5 sec, calculate the acceleration. = 3-3 ft/sec 2 NESn/aW Note: If the speed were given in miles per hour, and the time were given in minutes, you could change the minutes to a ...
Monday, June 27, 2011 at 6:55am

physical science
A rock tied to a string is swung around in a circle with a radius of 10 ft. The centripetal acceleration is 16.9 ft/sec2. Calculate the speed of the rock.
Monday, June 27, 2011 at 6:54am

physical science
A car slams on its brakes, coming to a complete stop in 4.0 sec. The car was traveling north at 60.0 mph. Calculate the acceleration.
Monday, June 27, 2011 at 6:54am

physical science
A car goes around a curve (the arc is part of a circle with a radius of 25 ft.) with a speed of 20.0 ft/sec. What is the magnitude of acceleration?
Monday, June 27, 2011 at 6:50am

Physical Science
the planet Jupiter is more than 300 as massive as earth. But a body would scarecly weighs 3 times as much on the surface of Jupiteras it would on the surface of the earth. Can you think of an explanation for why this is so?
Saturday, June 25, 2011 at 5:16pm

English
I just have a few more questions to you. As for 1) I just want to know if punctuation is correct and if distinguish is followed by "among" or not. In 3) I just want to know if "and" is needed. In 2) and 4) I'd like you to check the word choice. 1) The ...
Saturday, June 25, 2011 at 3:35pm

The Teacher Aide in Early Childhood Education Prog
Could you please help 2. One of the primary concerns of child advocacy groups is A. the need to provide more supervisory care for children. B. providing children with sports, games, and arts and crafts activities. C. the problem of low wages for early childhood educators. D. ...
Friday, June 24, 2011 at 9:34pm

Geography
It has been said that Eastern Europe is a political region more than a physical region. Would you agree or disagree with this statement? You must provide a solid argument for your position. Eastern Europe is tied together as a political region since the end of world war 2. ...
Friday, June 24, 2011 at 9:24pm

English
I need to simplify and clarify sentences number 1 and 3. Can you check the word choice (ex. impose) in the other sentences, too? 1)The Victorians were great moralizer: they faced a large number of problems on such a scale, that they felt obliged to so they promoted a code of ...
Friday, June 24, 2011 at 1:39pm

Physical Science
an initially stationary 15.0 kg crate of cheese wheels is pulled via a cable a distance d = 5.70 m up a frictionless ramp to a height of h = 2.5 m, where it stops. What is its potential energy of the crate after it is lifted? how much work is done during the lift? If it takes ...
Friday, June 24, 2011 at 11:27am

Physical Science
A 4.5 kg ham is thrown into a stationary 15 kg shopping cart. At what speed will the cart travel if the ham had an initial speed of 2.2 m/s ? If the ham hits the cart with 2N of force, how long did the collision between the two last? I know u use the formula v=p/m
Friday, June 24, 2011 at 11:22am

physical science
How long would it take a 20.0 hp motor to lift a 1,000.0 kg crate from the bottom of a freighter's hold to the deck (40.0 m)?
Thursday, June 23, 2011 at 2:19pm

physical science
a 4.5 kg ham is thrown into a stationary 15 kg buggy. at what speed will the cart travel if the ham had an initial speed of 2.2 m/s ? if the ham hits the buggy with 2N of force how long did the collision between the two last?
Wednesday, June 22, 2011 at 5:50pm

physical science
A 6 kg bowling ball rolling at 5 m/s strikes a stationary 4 kg bowling ball. If ball #1 is moving forward at 2 m/s after the collision, what is the speed and direction of ball #2? What is the impulse of the system? If the collision last for .5 seconds, how much force is exerted?
Wednesday, June 22, 2011 at 4:48pm

physical science
Suppose you are playing ice hockey in the middle of a totally frictionless frozen pond. How can you move yourself to the edge of the pond? Explain what you would do and why it would work.
Wednesday, June 22, 2011 at 4:45pm

Physical Science
A dog having a mass of 32.0 kg runs at a constant pace of 9.50 km/hr. What is the magnitude of the dog's momentum?
Wednesday, June 22, 2011 at 2:50pm

early childhood education
which one of these factors is most likely to determine the total number of children you can take into your facility (a)physical space available (b)childreds need (c)staff members skills (d)program philosophy
Wednesday, June 22, 2011 at 2:26pm

Physical science
A projectile spends 20 seconds in the air. It reaches a peak height of 8 meters. How long does it take to reach it's peak height? The projectile has a range of 80 meters. What is it's horizontal velocity?
Tuesday, June 21, 2011 at 12:42pm

Physical Science 2
Given that iron has a density of 7.87 g/cm3, calculate the volumeof 100 g of iron and 50 g of iron
Tuesday, June 21, 2011 at 12:23pm

Physical science
A 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 it's peak height
Tuesday, June 21, 2011 at 10:07am

teacher aide examniation number 02604200
1. A common symptom of a behavior disorder is 2. When children have accidents with bowel or bladder control, the teacher aide should 3. When working with behavior disordered children in the classroom, the teacher aide can modify behavior by 4. In a regular school setting, ...
Monday, June 20, 2011 at 9:29pm

physical science
A flower pot falls off a window ledge 10.0 m above the ground. Its velocity as it hits the ground is
Monday, June 20, 2011 at 6:57pm

pe
what is terminologies in physical education?
Monday, June 20, 2011 at 1:03am

Physical Science
A 2.9-kg pile of aluminum ( = 2.70 g/cm3) cans is melted, and then cooled into a solid cube. What is the volume of the cube? a. 931 cm3 b. 1074 cm3 c. 1365 cm3 d. 889 cm3 Thank you!
Sunday, June 19, 2011 at 3:59pm

Physical science
A little hexane is poured into a crucible and burnt what is a balanced chemical equation for this reaction
Sunday, June 19, 2011 at 2:04pm

physical science
If gravity is the only force present, what is the total mechanical energy of a box falling of a truck at a time when it's potential energy is 100J and it's kinetic energy is 150J?
Saturday, June 18, 2011 at 6:14pm

PHYSICAL SCIENCE
BY HOW MANY DEGREES OF CELSIUS WOULD THE TEMPERATURE OF 100 GALLONS OF WATER INCREASE IF 300 CALORIES WERE ADDED TO IT?
Saturday, June 18, 2011 at 9:26am

physical education
What is Pele, the King of Soccer doing these days? Is he still alive? Is a soccer player in Brazil? What does he do these days? Is he a coach? I'd like to know what Pele is doing these days? Thank you.
Thursday, June 16, 2011 at 1:17am

accounting
Enter transactions: 1. owner contributes $6,00 cash 2. $2,000 in revenue on account 3. $1,500 cash from debtors 4. Rent expense cash $400 5. $300 in cash for salaries invested $2,500 in a certificate of deposit(terms - 12 months, rate of interest - 8%) Adjusted enteries at end...
Wednesday, June 15, 2011 at 9:42pm

physical science
What are the distance and displacement of a race car that completes the Indy 500
Wednesday, June 15, 2011 at 1:03pm

physical education
what is physical education????and the terminologies in physical education???
Tuesday, June 14, 2011 at 2:05am

chemistry
1. hydrogen Zn 2. chlorine phase change 3. zinc N 4. lead physical change 5. breaking glass Pb 6. melting ice H 7. nitrogen Cl 8. copper Cu
Monday, June 13, 2011 at 3:51pm

Geography
Describe the relationship between physical geography and world cultures. - my guess is that since geography has to do with mountains and seas, culture is spread whenever people settle in those different areas?-
Monday, June 13, 2011 at 2:00am

College
Shantisha Brown SC543-01 Article Critique 1 Mindes, Gayle; Murphy, Kathleen Torina (1982). The Importance of Play and Games in the Middle School Program for Emotionally Disturbed Young Adolescents. Journal of Mental Health Counseling, 31, 131-140. In this article on play ...
Sunday, June 12, 2011 at 10:33pm

physical science
A car weighing 15,000 N is speeding down the highway at 90 km/h. What is its momentum?
Sunday, June 12, 2011 at 5:56pm

Biology
You are a botanist hired in the future to make a distant planet, Xyloph, habitable for human life. Your job is to help seed the planet with plant life by working with the Terraforming Team. All four major kinds of plants will be introduced into this new world. You are to help...
Sunday, June 12, 2011 at 12:07pm

Cultural Diversity
Since the Hernandez family has experienced discrimination, hardship, and recent bullying in their neighborhood, Mr. Hernandez has enrolled his sons in the YMCA martial arts class. He would consider this action proper on the basis of the need to defend the: (Points: 5) dignidad...
Friday, June 10, 2011 at 6:46pm

hum/176
Is this a good thesis sentence? Music is more than just entertainment; it has physical and psychological effects on humans and animals and is the totality of ideas, perspectives, attitudes, images and other phenomena that are deemed preferred per an informal consensus within ...
Thursday, June 9, 2011 at 5:45pm

med term
In theses 2 scenarios im suppose to find 15 med words and define them, now I have found more then 15 am I correct that there is more then 15? Dont want to know what they are just want to know that there is more then 15 I. AMBULATORY CARE FACE SHEET Admit Date: 7/8/20XX @ 20:22...
Thursday, June 9, 2011 at 4:53pm

child care
A strategy for health promotion among infants, toddlers, and young children focuses on educational programs, physical, fitness, activities and.. A. family panning B Tabacco, alcohol,anddrug use. c. Nutrition D mental health and mental disorders. Im not sure , but I think is B...
Wednesday, June 8, 2011 at 10:42am

physical science
A ball was dropped off a cliff and took 3.09 s to fall to the water below. Neglecting air resistance, how fast (in m/s) was the ball moving just as it hit the water
Tuesday, June 7, 2011 at 4:09pm

physical science
If a ball is thrown straight up at a speed of 27.8 m/s, how long (in seconds) will it continue to rise before it starts to fall back down
Tuesday, June 7, 2011 at 4:08pm

TEACHER AIDES
8. Which of the following statements is true of joint physical custody? A. Joint physical custody isn't legal in most states. B. Joint physical custody is usually difficult for young children. C. Joint physical custody is usually preferred by the court. D. Joint physical ...
Monday, June 6, 2011 at 9:09pm

teacher aides
8. Which of the following statements is true of joint physical custody? A. Joint physical custody isn't legal in most states. B. Joint physical custody is usually difficult for young children. C. Joint physical custody is usually preferred by the court. D. Joint physical ...
Monday, June 6, 2011 at 8:29pm

Nutrition
Josephine is a 20 year old female who is present for an eating disorder not otherwise specified. She currently teaches salsa lessons at the community college and is in her last semester of college. She reports she is living at home and the food her mom prepares is not the ...
Monday, June 6, 2011 at 12:09pm

English Honors
"A Separate Peace" assingments. I just got out of the hospital. I just saw that these assignments will be due in a couple of hours. PLEASE HELP ME PLEASE!! I asked my teacher for a postponed date he said he can't because the payment for the school is paid in ...
Sunday, June 5, 2011 at 9:21pm

Psychology
When physical energy has resulted in a response in a sense organ, it is clear that: 1. Perception has taken place 2. the activation is the result of stimulus 3. the brain has interpreted the event. 4. a single isolated sense is now perceiving the event.
Sunday, June 5, 2011 at 7:43pm

English
Thank you very much. In point 1 I need to formulate my question better. As for the other points I'd like you to revise the language, especially in point 4. 1) Why is Wilde's "The picture of Dorian Gray profoundly allegorical? What does the picture symbolize and ...
Sunday, June 5, 2011 at 5:32am

physical chemistry
the aprroximate method to solve the shrodringer equation for hydrogen like atom? Please help, thank
Saturday, June 4, 2011 at 6:49pm

english
I am stuck with being able to complete this assignment and I was wondering if some1 could help me with it. I don't (can't) fail this 1. I already completed my english assignment but I totally bombed it and they want me 2 complete this assignment 2 b able 2 pass. ...
Wednesday, June 1, 2011 at 7:21pm

PHY
Overall, the physical properties of minerals provide a reliable means to identify common minerals. However, certain properties can exhibit a range of characteristics or values making them less useful for identification purposes. Choose 2 physical properties that might vary to...
Wednesday, June 1, 2011 at 6:40pm

physical science
What is the kinetic energy of a 27 kg dog that is running at a speed of 8.3 m/s (about 19 mi/h
Tuesday, May 31, 2011 at 5:33pm

physical
Aman of 65kg jumps in aswimming from atower of height 19.6m.he was found to go down in water by 2m and started raising up.find the average resistance in water?
Tuesday, May 31, 2011 at 5:08pm

physical
Calculate the time taken for atrain to travel 1000m.if its initial speed 30m/s and has constant acceralation of 0.1m/s^2.
Tuesday, May 31, 2011 at 4:59pm

physical
Afly wheel is making 180 rev/min and after 20s,its running at 120 rev/min.how many rev will it make and what time would ellapse before it stops. If the retartation is uniform
Tuesday, May 31, 2011 at 4:55pm

physical
Awheel increases its speed from 45 revolutions per minute to 90 revolutione per minute in 30 seconds.find angular acceralation of the wheel and number of revolution made by this wheel in this 30 seconds.
Tuesday, May 31, 2011 at 4:46pm

English
Is it a mistake to write "Nature ceased to be consideres "as" a real living being?" I included a few more sentences. Thank you. 1) In the fourth stanza the poet suggests that in order to hear the voice of nature we should be in a state of inner emptiness ...
Monday, May 30, 2011 at 6:51pm

physical science
how many beats in 206 Hz
Friday, May 27, 2011 at 12:21pm

Physical Science
Determine the concentration of the HCl in a swimming pool?given 100ml of a standard solution of Na2CO3 of concentration 0.05mol.dm
Thursday, May 26, 2011 at 1:38pm

Life orietation
Describe the life style disease/behaviour and explain 5 (more)factors that contribute to the disease.topic that refers to:lack of physical fitness and proper nutrition in the adolescent
Wednesday, May 25, 2011 at 12:12pm

Physical Science 2nd Semester
A student lifts a backpack with a force of 50 Newtons. She lifts the backpack 2 meters off the floor. Calculate the work that she has done.
Tuesday, May 24, 2011 at 2:53pm

physical science
true/false All units of energy are vectors.
Monday, May 23, 2011 at 7:28pm

physical science
true /false for every action, there is an equal and opposite reaction is best defined as Newton's Third Law
Monday, May 23, 2011 at 7:28pm

physical science
true/false A lens that converges light is concave
Monday, May 23, 2011 at 7:24pm

physical science
true/false the force of friction always opposes motion.
Monday, May 23, 2011 at 7:21pm

Physical sciences(chemistry)
Do not know it
Monday, May 23, 2011 at 3:35pm

Physical sciences
Potassium dichromate is orange in an acidic medium.it changes colour to yellow in a basic medium.
Monday, May 23, 2011 at 3:28pm

Physical sciences
Potassium dichromate,concentrated nitric acid 12m,concentrated sodium hydroxide 12.5m and water.set up an experiment to investigate the effects of changing concentration on an equilibrium mixture
Monday, May 23, 2011 at 3:16pm

physical science
you are standing on a street corner, and you hear a fire truck approaching. does the pitch of the siren stay constant, increase, or decrease as it approaches you? does the pitch of the siren stay constant, increase, or decrease as it moves away?
Monday, May 23, 2011 at 11:03am

Kids and Sports
Introducing organized sports among young children is not recommended because? A.this excludes the teacher or caregiver from a role in play. B.they lack the necessary physical maturation needed. C.they should be making up their own rules. D.they lack the social interaction ...
Sunday, May 22, 2011 at 12:09pm

fundaents
the most fundamental principle behind learning is that children do what A. construct knowledge B. learn through play Clean wen thei physical needs are satisfied D. learn through socialineaction i think it's B or D
Sunday, May 22, 2011 at 12:08pm

I really need help with biology!!
I need help understanding my bio assignment. Can you tell me weather or not I got them right and if I didnt get them right can you correct them and tell me the right answer to give me a better understanding? I put a star (*) next to my answer. 1. Which type of muscle makes up ...
Friday, May 20, 2011 at 11:14pm

Science
Name 3 physical (physics) occurances that happen within a roller coaster ride?
Friday, May 20, 2011 at 8:24pm

Computer
What general term describes the physical equipment of a computer system, suchn as its video screen,keyboard, and storage devices?
Friday, May 20, 2011 at 12:03pm

accounting
Triple Play, Inc Triple Play, Inc. was established in 1982 by Randy Cleaver, Jim “Bluefish” Johnson, and Willie Lloyd, all ex-major league baseball players who were interested in offering quality baseball mitts at affordable prices. These players felt that, at the ...
Friday, May 20, 2011 at 3:24am

physical science
can water dissolve polar molecules or nonpolar molecules
Thursday, May 19, 2011 at 7:40pm

physical
That's the best aneswr of all time! JMHO
Wednesday, May 18, 2011 at 1:33am

sociology
Hi This is my essay question Please can you read my essay below and critque it. "Durkheim argues that society is held together by sets of norms which are transmitted to us by social institutions like the family and schools, and that this process fundamentally shapes our ...
Tuesday, May 17, 2011 at 5:30am

working with school aged children
Which of the following are the major determinants of physical growth and development? A. Heredity, parents, and school B. Intelligence, cleanliness, and aggression C. Nutrition, emotional well-being, and culture D. Food, TV, and technology I am thinking that it's C
Monday, May 16, 2011 at 11:57pm

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