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April 20, 2014

Homework Help: Physical Education

Recent Physical Education Questions

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heailth
How can communities and government help promote physical activity initiatives? A. Create walking trails B. Eliminate sidewalks C. Lower taxes D. Raise taxes
Friday, February 7, 2014 at 2:25am

chemistry
I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl 36.4% SiO2 40.9% CaCO3 ...
Wednesday, February 5, 2014 at 12:15am

chemistry
I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl 36.4% SiO2 40.9% CaCO3 ...
Wednesday, February 5, 2014 at 12:15am

chemistry
I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl 36.4% SiO2 40.9% CaCO3 ...
Wednesday, February 5, 2014 at 12:15am

chemistry
I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl 36.4% SiO2 40.9% CaCO3 ...
Wednesday, February 5, 2014 at 12:15am

chemistry
I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl 36.4% SiO2 40.9% CaCO3 ...
Wednesday, February 5, 2014 at 12:15am

Physical sciences
F = 10 + 30 = 40 N.
Tuesday, February 4, 2014 at 9:25pm

Chemistry
I did a lab the other day where we separated a mixture of NaCl, SiO2, and CaCO3. The Mixture was made by my professor and we did not know the original amounts of each compound. After recovering all of the compounds we found that there was.. 36.4% NaCl 36.4% SiO2 40.9% CaCO3 ...
Tuesday, February 4, 2014 at 8:39pm

physical science
cause
Monday, February 3, 2014 at 11:45pm

physical science
Explain using newtons first law why traveling car using a rope is dangerous compared using a steel car
Monday, February 3, 2014 at 11:00pm

chemistry
All of them are solids for one. How many do you need? I suggest you google each, list the physical properties of each, then make a list of those in common.
Monday, February 3, 2014 at 10:46pm

Physical
change of momentum = .14 * 38 average speed during stop = 38/2 = 19 time to stop = t =.15/19 = .00789 seconds F = change in momentum/time = .14*38/.00789 = 674 Newtons (ouch)
Monday, February 3, 2014 at 10:07pm

Physical
A 0.140-kg baseball traveling 38.0m/s strikes the catcher's mitt, which, in bringing the ball to rest, recoils backward 15.0cm .What was the average force applied by the ball on the glove?
Monday, February 3, 2014 at 9:55pm

chemistry
What physical properties of calcium chloride, citric acid, sodium iodide, potassium iodide, and sucrose have in common?
Monday, February 3, 2014 at 8:41pm

Physical sciences
Two girls drag a bag across the floor one girl exerted a force of 10N and the other girl a force of 30N in the same direction:CALCULATE THE RESULTANT FORCE ON A BAG
Monday, February 3, 2014 at 2:41pm

Physical sciences(Mechanics)
cos 30 = .866 3000 * .866 = 2598 N
Monday, February 3, 2014 at 1:35pm

Physical sciences(Mechanics)
A tractor pulls a tree trunk across a horizontal piece of ground.If the force in the chain is 3000N and the chain forms an agle of 30 degrees with the ground,calculate:The forces with which the tree is pulled across the ground.
Monday, February 3, 2014 at 1:11pm

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, ...
Sunday, February 2, 2014 at 10:31pm

Physical Science
Explain the energy conversions that occur as a basketball falls, hits the ground, and bounces back up. Ignore frictional forces.
Sunday, February 2, 2014 at 6:02pm

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
Sunday, February 2, 2014 at 3:02pm

physical science
work = m g h = 70 * 9.81 * 2.2 joules power = work in Joules /time in seconds = 70 * 9.81 * 2.2 / 1.2 in Joules per second which is WATTS
Saturday, February 1, 2014 at 6:20pm

physical science
a weigh lifter raises a 70-kg barbell from the floor to a height of 2.2 m in 1.2s what was his average power output during the lift?
Saturday, February 1, 2014 at 5:54pm

physical science
V = Vo + g*t = 0 @ max ht. Vo - 9.8*4.24 = 0 Vo = 41.55 m/s. = Initial velocity, up. = Final velocity, down.
Saturday, February 1, 2014 at 3:30pm

reading
why is the book "the stranger" by albert camus considered a classic? is it morality, effective language, truthfulness, universality, timelessness here a bit about this: Meursault learns of his mother's death. At her funeral, he expresses none of the expected ...
Saturday, February 1, 2014 at 3:23pm

English
That's not the correct use of "conflicts" as a verb. Here's a suggestion? This can include mental, physical, and emotional abuse that any member of a family inflicts on another member of the family.
Thursday, January 30, 2014 at 3:39pm

English
I am writing a paper for my research class and I am not sure I am using the right word in the sentence below. (This can include mental, physical, and emotional abuse that any member of a family conflicts on to another member of the family.) I am not sure that “conflicts&#...
Thursday, January 30, 2014 at 3:37pm

physical science
A rock thrown straight up climbs for 4.24 s, then falls to the ground. Neglecting air resistance, with what velocity did the rock strike the ground?
Thursday, January 30, 2014 at 2:12pm

science --- check my answers!
help pls asap!!!!! check my answers!!! 4.) A certain object has a volume of 25.0 mL and a mass of 100g. What is the density of the object? a)0.250 g/mL b) 4.00/mL*** c)125 g/mL d) 2500 g/mL 5.)Which of the following is a chemical property of aluminum? a)The melting point of ...
Thursday, January 30, 2014 at 1:22pm

Physical Education - Check my answer please
You're welcome, Elina.
Thursday, January 30, 2014 at 12:30pm

Physical Education - Check my answer please
Thanks Ms. Sue
Thursday, January 30, 2014 at 12:24pm

Physical Education - Check my answer please
I agree.
Thursday, January 30, 2014 at 12:23pm

Physical Education - Check my answer please
Excess body fat may cause... Answer choices: 1. diabetes, lack of stored energy, stroke, and heart disease. 2. lack of organ protection, osteoarthritis, and hyper tension. 3. sleep apnea, lack of organ protection, and liver disease. 4. stroke, infertility, sleep apnea, and ...
Thursday, January 30, 2014 at 12:17pm

Physics
Problem 1 (80 points) Consider a spring of equilibrium length L, lying horizontally in a frictionless trough. The spring has cross sectional area S perpendicular to its length. The trough constrains the motion of the spring so that any wave propagating along the spring is a ...
Wednesday, January 29, 2014 at 11:24pm

physical science
acceleration= changevelocity/time time= changevelocity/accel=14/3 seconds
Wednesday, January 29, 2014 at 9:12pm

physical science
How much time is needed for a car to accelerate from 8.0 m/s to speed of 22 m/s if the acceleration is 3.0 m/s^2?
Wednesday, January 29, 2014 at 8:54pm

Physical Science
PE triples
Wednesday, January 29, 2014 at 7:33pm

Physical Science
rth
Wednesday, January 29, 2014 at 6:51pm

Physical Science
How does the potential energy of an object change when its height is tripled?
Wednesday, January 29, 2014 at 6:20pm

Physics
Problem 1 (80 points) Consider a spring of equilibrium length L, lying horizontally in a frictionless trough. The spring has cross sectional area S perpendicular to its length. The trough constrains the motion of the spring so that any wave propagating along the spring is a ...
Wednesday, January 29, 2014 at 3:50pm

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 ...
Wednesday, January 29, 2014 at 11:18am

Science ~ Structures and Properties of Matter
1. C CAN'T be right. Water is a liquid and CO2 is a gas so they dont have the same physical properties and you know they don't have the same chemical properties. 2. see below.
Tuesday, January 28, 2014 at 4:27pm

Science ~ Structures and Properties of Matter
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 ...
Tuesday, January 28, 2014 at 4:12pm

science ~CHECK MY WORK PLEASE~
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 ...
Tuesday, January 28, 2014 at 3:41pm

Physical Science
The 60% goes to do the work the machine is designed to do. The other 40% is lost to do the work and it goes out in the form of heat, light, etc.
Tuesday, January 28, 2014 at 3:21pm

Science ~CHECK MY WORK PLEASE~
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 ...
Tuesday, January 28, 2014 at 3:21pm

Physical Science
A machine you designed has an efficiency of 60%. What happens to 60% of the work put into the machine, and what happens to the other 40%?
Tuesday, January 28, 2014 at 2:55pm

Physical science
F = d/dt (mv) in other words force is rate of change of momentum (in the special case of constant mass this is F = m a) so F * change in time = change of momentum This is usually called "impulse".
Tuesday, January 28, 2014 at 2:00pm

Physical science
State the mathematical relationship between the net force acting on an object and the time taken to change the objects momentum
Tuesday, January 28, 2014 at 12:55pm

Science
Some animals, but not humans, have an organ called a gizzard located near the top of their digestive tract. This organ is small and can contain small rocks. It also has thick, muscular walls. Based on this physical description, which of the following is most likely to be the ...
Tuesday, January 28, 2014 at 12:41am

physical acience
D = 360g/74cm^3 = 4.86 g/cm^3.
Monday, January 27, 2014 at 8:28pm

Ms.Sue is this better?
In the article The String Theory, by David Foster Wallace, there were three writing techniques that I noticed Wallace used. First, I think Wallace was informative and explanatory. He explained why there are some professional tennis players who are unknown and obscure to the ...
Monday, January 27, 2014 at 5:48pm

Analysis proofreading
Hi for my analysis on The String Theory by David Wallace Foster I had to discuss 3 writing techniques the author used and give an example. Can I please get it proofread? After reading the article The String Theory, by David Foster Wallace, there were three writing techniques ...
Monday, January 27, 2014 at 4:23pm

Physical Science
(1/2) m v^2 = 25 * 100 = 2500 Joules
Monday, January 27, 2014 at 4:12pm

Chemistry
Given the reactant side of the total ionic equation for the neutralization reaction of ammonium hydroxide (NH4OH) with hydrochloric acid (HCl), write the total ionic equation (also known as the complete ionic equation) by entering both the reactant and the product species, ...
Monday, January 27, 2014 at 4:09pm

Physical Science
A 50.0-kg wolf is running at 10.0 m/sec. What is the wolf's kinetic energy? A) 5 J B) 500 J C) 5000 J D) 250 J E) 2500 J
Monday, January 27, 2014 at 4:07pm

physical
Finding the resultant in th x direction ,Rx and y for the following forces f1 =1,5N in the positive x direction
Monday, January 27, 2014 at 8:40am

physical acience
Compute the density in g/cm3 of a piece of metal that has a mass of 0.360 kg and a volume of 74 cm3.
Sunday, January 26, 2014 at 11:04am

health
A. Physical health and energy levels only B. Stress reduction and general health C. Self-confidence and attractiveness to the opposite sex D. Physical health, energy levels, general mood, and self-confidence What is your answer?
Saturday, January 25, 2014 at 5:15pm

physical sciences
when they act in parallel, either in the same direction or in opposite directions.
Saturday, January 25, 2014 at 11:28am

physical sciences
what are the maximum and minimum resultants of the two forces?
Saturday, January 25, 2014 at 7:51am

Physical Science 9
You can find your answer at the following site. http://en.wikipedia.org/wiki/Cementite
Friday, January 24, 2014 at 8:48am

Physical Science 9
What is the chemical equation for the rusting of iron carbide. I tried it myself,but I ended up with iron hydroxide rather than iron oxide. Help, Please, and thank you.
Friday, January 24, 2014 at 8:35am

Physical Education
Can anyone please tell me five advantages and disadvantages of spectators.
Thursday, January 23, 2014 at 8:03pm

Physical Education
http://www.google.com/webhp?source=searc​h_app#q=guyana+physical+education+organi​sations
Thursday, January 23, 2014 at 6:45pm

Physical Education
Please for the list of organisations responsible for physical education. Also advantages and disadvantages of spectators.
Thursday, January 23, 2014 at 6:39pm

Physical Education
Please for five disadvantages and advantages of spectators and a list of organization responsible for physical education. Thank you
Thursday, January 23, 2014 at 4:57pm

physical sciences
when they are in the same direction
Thursday, January 23, 2014 at 12:04pm

physical science
when they are both in the same direction.
Thursday, January 23, 2014 at 12:03pm

physical sciences
two forces of 5N and 7N respectively act on an object. When will the resultant of the two vectors be at the maximum?
Thursday, January 23, 2014 at 11:26am

physical science
when will the resultant of the two(5N ,7N)vectors be at maximum?
Thursday, January 23, 2014 at 4:09am

Pre-Calc
A page that is x inches wide and y inches high contains 30 square inches of print. The top and bottom margins are 2 inches deep, and the margins on each side are 2 inches wide. a. draw a diagram that gives a visul representation of the problem. b. show that the total area A on...
Wednesday, January 22, 2014 at 8:10pm

Phys/Ed
1. Select the skill-related component which is defined as the ability to combine strength and speed while you are moving. (1 point) balance coordination power speed 2. At the paintball field, Wynonna is always the first one on her team to be hit with the paintball and put out ...
Wednesday, January 22, 2014 at 4:57pm

Physical Science
MIND YA BUSINESS .
Wednesday, January 22, 2014 at 2:03pm

Physical Science
1 is photosynthesis Plants take in CO2 and produce O2 2 is combustion - photosynthesis (the giveaway is the car burning fuel)
Wednesday, January 22, 2014 at 12:41pm

Physical Science
I Guess.... 1) respiration. 2) fossilization, photosynthesis.
Wednesday, January 22, 2014 at 12:33pm

Physical Science
Can someone help me =.=
Wednesday, January 22, 2014 at 12:31pm

Physical Science
Please guess yourself and put an arrow beside your answer. <------ I am sure you know.
Wednesday, January 22, 2014 at 11:11am

Physical Science
1) Carbon dioxide is obtain from the air and changed into carbohydrates oxygen during the process of fossilization. respiration. digestion. photosynthesis. 2) Which sequence of processes must occur for an atom of carbon to go from car to tree? respiration, decomposition. ...
Wednesday, January 22, 2014 at 10:50am

Physical science
Horizontal 8 than vertically it -4
Tuesday, January 21, 2014 at 1:21pm

Physical Geography
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...
Monday, January 20, 2014 at 5:29pm

maths, physical science , life science , geography
See the Related Questions below.
Sunday, January 19, 2014 at 12:50pm

maths, physical science , life science , geography
Hi I am in grade 10 , I am doing maths physical science, life science and geography, what jobs can I get into with those subjects
Sunday, January 19, 2014 at 12:45pm

PHYSICAL SCIENCE
it will be 12N
Sunday, January 19, 2014 at 11:28am

physical sciences
the will be no resultant
Sunday, January 19, 2014 at 1:38am

English
Circle the main idea and underline the controlling idea in each of the following topic sentences. 1. Exercising three times a week is the only way to maintain good physical health. 2. Sexism and racism are still rampant in today’s workplace. 3. Raising the legal driving ...
Saturday, January 18, 2014 at 3:24pm

English
Have you ever wanted to give up on something before you even started? That’s how Raja felt as he squinted up at the looming mountain crowned in clouds. Then he looked back at the group of boys behind him. “Are you all ready?” one of their leaders, Max’s dad...
Friday, January 17, 2014 at 5:36pm

physical sciences
Suppose the ceiling in the previous problem is that of an elevator which is going up with an acceleration of 2.0 m/s square. Find the the elongations.
Thursday, January 16, 2014 at 9:26pm

physical sciences
One pushes north the other south
Thursday, January 16, 2014 at 5:18pm

Physical Science
a=change in vel./time 6m/s-0m/s divided by 4 sec. acc. = 1.5 m/s^2 F=ma F= (80 kg)(1.5m/s^2) F=120N Hope this helps! :D
Thursday, January 16, 2014 at 4:43pm

Phy. Ed
I have to do two physical activities. The second activity should be one that would improve my performance in the first one. Does anyone have any ideas of activities I can do at home?
Thursday, January 16, 2014 at 3:24pm

physical sciences
a)force can cause motion ,alternativelly force can act to keep an object at the rest.
Thursday, January 16, 2014 at 3:16pm

physical sciences
Oh come on. If you and your friend are trying to push a car do you both push in the same direction or does one push north and the other push south?
Thursday, January 16, 2014 at 2:43pm

physical sciences
Two forces of 5n and 7N respectively act on an object. (A)when will the resultant of the two vectors be at a maximum? (B)when will the resultant of the two vectors be at a minimum? (C)when are the maximum and minimum resultantof the two forces?
Thursday, January 16, 2014 at 2:37pm

physical sciences
now what would you think yourself?
Thursday, January 16, 2014 at 2:24pm

physical sciences
Two forces of 5N and 7N respectively act on an object. (A)when will the resultant of the two vectors be at a maximum? (B)when will the resultant of the two vectors be at a minimum? (C)what are the maximum and minimum resultant of the two forces?
Thursday, January 16, 2014 at 2:22pm

science help asap!!!
Hi, can someone check my answers asap!!? i am on a deadline!! 1. What doe the notation TT mean to geneticists? (1 point) two dominant alleles heterozygous alleles at least one dominant allele one dominant and one recessive allele 2. An organisms genotype is (1 point) its ...
Thursday, January 16, 2014 at 1:12pm

Chemistry
When the oxide of generic metal M is heated at 25.0 °C, only a negligible amount of M is produced. O2M(s) ----> M(s) +O2(g) delta G= 290.5 Kj/mol When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous. What is the chemical ...
Tuesday, January 14, 2014 at 10:25pm

Physical Science HELP
See my response below.
Tuesday, January 14, 2014 at 10:23pm

Physical Science
You need to rephrase the question and/or the answers. I don't understand either the question or the answer.
Tuesday, January 14, 2014 at 10:22pm

Physical Science HELP
Can someone check if these are right: Tell reaction rate 1.) one antacid tablet is placed in a glass of cold water, while another table is placed in a glass of hot water. TEMPERATURE? 2.) a mixture of baking powder, flour, sugar, and eggs is placed in the oven. TEMPERATURE? 3...
Tuesday, January 14, 2014 at 6:04pm

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