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September 23, 2014

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Recent Physical Education Questions

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physical
to strengthen his arm and chest muscles, an 82-kg athlete who is 2.0 m tall is doing push ups. his center of mass is 1.15 m from the bottom of his feet, and the centers of his palms are 30.0cm from the top of his head. find the force that the floor exerts on each of is feet ...
Thursday, November 8, 2012 at 12:02am

McKay
website to help identify physical or mental action verbs?
Wednesday, November 7, 2012 at 11:41pm

physical science
Johniece jogs 7 feet then turns 90 degrees and jogs 2 feet. What is the distance and the displacement ?
Wednesday, November 7, 2012 at 11:09pm

Physical Science Help, PLEASE!
A marine weather station reports that waves along the shore at 10 seconds apart. The frequency of the waves is?
Wednesday, November 7, 2012 at 7:22pm

Physical Education
Tom served to Sue, who set up Stacey for a spike. Stacey went up for the spike and hit it into the ground on Team A's side. In the process of spiking the ball, Stacey hit the net with her hand. Who won the point and why?
Wednesday, November 7, 2012 at 5:17pm

Physical Science
A truck whose bed is 2.5m long, 1.5m wide, and 1m high is delivering sand to a construction site. How many trips must the truck make to deliver 7? cubic meters of sand? Plese explain your answer.
Wednesday, November 7, 2012 at 1:02am

Physical Science
A truck whose bed is 2.5m long, 1.5m wide, and 1m high is delivering sand to a construction site. How many trips must the truck make to deliver 7? cubic meters of sand? Plese explain your answer.
Wednesday, November 7, 2012 at 1:01am

physical science
A 30.0kg child standing from rest slides down a water slide with a vertical height of 10.0m. What is the childs speed (a)halfway down he slides vertical distance and (b)three-fourths of the way down? (Neglect friction?
Tuesday, November 6, 2012 at 2:54pm

statistics
Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 48 male ...
Monday, November 5, 2012 at 9:59pm

Physical Science Help!
A transformer has 25 turns in the primary coil and 200 turns in the secondary coil. If 12 V is connected to the primary coil and a 20-Ù device is connected to the secondary coil, calculate the current in Amperes passing through the device
Monday, November 5, 2012 at 8:57pm

science
give an example of a physical stimulus for touch, sight, and hearing. name the organs this sense is associated with.
Sunday, November 4, 2012 at 10:21pm

Culturally Diverse Background
Will someone check my answers. 1.During a class fingerpainting activity,Doresha appeared perplexed by the teacher's question, What are you doing, Doresha did not respond quickly or with ease. Why did Doresha respond to this eventcast the way she did? a. Doresha is from a ...
Sunday, November 4, 2012 at 2:23am

Physical Science
When you do 100 J of work on the handle of a bicycle pump, the pump does 40 J of work pushing the air into the tire. What is the efficiency of the pump?
Saturday, November 3, 2012 at 8:58pm

Grammar and punctuation
Select the sentence which is correctly punctuated, spaced, and capitalized. A) The patient will see Dr. Jones, cardiologist, Dr. Green, pulmonologist, and Dr. Frank, physicaltherapist. B) The patient will see Dr. Jones, cardiologist; Dr. Green, pulmonologist; and Dr. Frank, ...
Wednesday, October 31, 2012 at 11:57am

physical
Adult cheetahs, the fastest of the great cats, have a mass of about 74 and have been clocked at up to 70 (31 ).
Tuesday, October 30, 2012 at 8:09pm

grammar action and linking verbs(mental or physica
In China, shrines honor ancestors. Is honor an a. action verb(physical)b. action verb(mental) c. linking verb d. not a verb
Tuesday, October 30, 2012 at 10:51am

Medical Assistant
A 66-year-old Medicare patient came to the office for his annual physical. He has past history of hypertension, controlledy by medication, and new complsints of dizziness and tiredness. During the course of the examination the physician found BP of 160/130. Adetailed history ...
Monday, October 29, 2012 at 9:18pm

Physical science
Which is not an example of acceleration? a) A person jogging at 3m/s along a winding path b) A car stopped at stop sign c) A cheetah running 27m/s east d) A plane taking off
Monday, October 29, 2012 at 8:46pm

Chem 1411
How would you show that dissolving table salt is a physical change?
Monday, October 29, 2012 at 7:37pm

Q&A Check Please, geo 7th grade
The Missouri River flows southward to the Gulf of California. FALSE a lower area of land generally surrounded by mountains BASIN Summer ocean currents come in from the north. FALSE THE COAST OF CALIFORNIA Most of Canada and Alaska have a subarctic climate. TRUE The Continental...
Monday, October 29, 2012 at 6:19pm

physical
You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that slopes upward at a 12° angle with the horizontal. As you face the window ( 0.715 m high, 2.29 m wide) in your compartment, the train is moving ...
Sunday, October 28, 2012 at 5:57pm

physical science
A substance whose 0xidation number decreases during a chemical reaction
Sunday, October 28, 2012 at 8:35am

Statistics
A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 460 seconds and a standard deviation of 40 seconds. The fitness ...
Wednesday, October 24, 2012 at 11:09pm

Physical Science
Sound travels about 1530 m/s in sea water. How many times faster does sound travel in sea water than in air? (The speed of sound in air at 25°C is about 345 m/s.)
Wednesday, October 24, 2012 at 8:20pm

physical
A dog is pulled at an angle of 30 degrees with the horizon using a tension of 450N. If the sled has a mass of 50kg, then find the recoil, forward force and acceleration (if any)?
Tuesday, October 23, 2012 at 11:27pm

Chemistry
If you spilled a container of iron filings on the ground, how would you separate the iron fillings from the soil using their individual physical properties?
Tuesday, October 23, 2012 at 6:20pm

Abnormal Psychology
For some teens, particularly girls, excessive efforts to control eating may be a misguided effort to A. punish parents. B. manage the stress and physical changes that confront them as they pass into adolescence. C. punish themselves. D. regress back to the oral stage of ...
Tuesday, October 23, 2012 at 6:08pm

physical science
How much heat is absorbed by a persons hand if 100 grams of liquid water at 100°C is poured on his hand? (Assume the final temperature of the water will be normal body temperature of 37°C)
Tuesday, October 23, 2012 at 5:41pm

Physical Science
If liquid pressure were the same at all depths, would there be a buoyant force on an object submerged in the liquid?
Tuesday, October 23, 2012 at 6:28am

physical science
how much heat is absorbed by contacting 10 grams of 100 degree C steam by a students hand.
Monday, October 22, 2012 at 10:17pm

physical science
how much heat is absorbed by pouring 10 grams of 100 degree C liquid water on a students hand. The water is cooled to body temperature 37 degree C
Monday, October 22, 2012 at 10:14pm

Physical Science
How much heat is absorbed by pouring 10 grams of 100°C liquid water on a student’s hand. The water is cooled to body temperature, 37°C. Assume that all of the heat is absorbed by the hand
Monday, October 22, 2012 at 12:49pm

PHYSICAL SCIENCE
How do the pressure variation with depth affect our ability to explore the ocean?
Monday, October 22, 2012 at 5:28am

Marketing
Identify the product concepts you used in determining the packaging. How does the packaging affect the effectiveness of the packaging? Are there any physical, social, or economic restraints that could limit or enhance your packaging? Market Research Product Concepts
Sunday, October 21, 2012 at 9:07pm

Physical science
What is the gravitational potential energy of a 5kg object resting 3m above the ground?
Sunday, October 21, 2012 at 3:40pm

Physical Science
Phairade roul
Friday, October 19, 2012 at 9:03pm

Physical Science
A block of ice at 0^\circ {\rm C} is dropped from a height that causes it to completely melt upon impact. Assume that there is no air resistance and that all the energy goes into melting the ice. What is the height necessary for this to occur.
Thursday, October 18, 2012 at 4:07pm

GEOL 108
Do you have the answers to exercise 30 in Darrel Hess's Physical Geography Laboratory Manual tenth edition?
Thursday, October 18, 2012 at 3:51pm

physical science
A clam is dropped by a seagull it takes 3 seconds to hit the ground. what is the seagulls height approximate height above the ground at the time the clam was dropped?
Wednesday, October 17, 2012 at 9:40pm

Physics
PLEASE SOMEONE HELP ME WITH THIS DARN QUIZ. I'm so lost and all my teachers are too 'BUSY' to help me. :/ I'm getting so sick and tired of studying and not getting it but then having to take the blame for my instructor's folly. 2. Which of the following is...
Wednesday, October 17, 2012 at 6:02pm

Physics
1. Which of these physical situations describes an inversely proportional relationship? (Points : 1) The volume always decreases as the pressure increases. The volume always increases as the pressure increases. The pressure vs. volume graph is a straight line passing through ...
Wednesday, October 17, 2012 at 4:46pm

social studies
The European Union (EU) was formed to advance the economic goals of Europe. Countries of the EU open their borders to member nations. European citizenship is extended to all, allowing people to live, work, and vote in any member nation. Member nations have common policies in ...
Wednesday, October 17, 2012 at 2:05pm

world geography
The statement, "People celebrate their birthdays on January 1st" is an example of what type of region? o climate o cultural o physical o political
Wednesday, October 17, 2012 at 1:57pm

world geo
The statement, "Paraguay is one of two landlocked South American nations" describes what type of region? o cultural o economic o physical o political
Wednesday, October 17, 2012 at 1:49pm

Physical science
A hot iron ball is dropped into 200g of cooler water. The water temperature increases by 2.0 degrees C and the temperature of the ball decreases by18.6 degrees C. What is the mass of the iron ball?
Tuesday, October 16, 2012 at 9:33pm

physical
what is the tension in the biceps tendon if the hand is holding a 10 kg ball while the forearm is held 45 degrees below horizontal
Tuesday, October 16, 2012 at 6:36pm

physics
Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices. Rank these from easiest ...
Monday, October 15, 2012 at 7:40pm

physics
Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices. Rank these from easiest ...
Monday, October 15, 2012 at 7:40pm

physics
Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices. Rank these from easiest ...
Monday, October 15, 2012 at 7:34pm

s.s.
what is meant by "people as resorce" ?explain how is human resource diffrent from other resorces like land and physical capital?
Monday, October 15, 2012 at 5:43am

Pre-Calculus
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 ...
Sunday, October 14, 2012 at 7:05pm

physical
Oasis B is a distance d = 8.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk directly from A to B instead walks a distance W1 = 21 km west of due south by angle θ1 = 15.0°. It then walks a distance W2 = 30 km due north. ...
Saturday, October 13, 2012 at 9:05pm

physical science
A 0.50 kg block initially at rest on a frictionless horizontal surface is acted upon by a force of 8.0 N for a distance of 7.5 m. What is the velocity of the block in m/s?
Saturday, October 13, 2012 at 4:55pm

physical sicence
If a force gives a 2-kg object an acceleration of 1.6 m/s2, what acceleration does this same force give to an 8-kg object?
Friday, October 12, 2012 at 11:32pm

Pacific Island
How did physical features affect migration and the distribution of culture groups in the Pacific Island Region?
Friday, October 12, 2012 at 7:05pm

Physical Science
You submerge 100 grams of steel in 200 grams of water. If the steel has an initial temperature of 80°C and the water has an initial temperature of 10°C, what is the final temperature of the system? The specific heat capacity of the steel is 0.15 cal/g•°C
Friday, October 12, 2012 at 5:19pm

physical science
suppose you want to heat 40g of water by 20c.how many joules of heat are required
Friday, October 12, 2012 at 4:24pm

Physical Science
A 100 kg sample of a metal is cooled from 100°C to 20°C by removing 20 kcal of heat. Calculate the specific heat capacity of the metal.
Friday, October 12, 2012 at 2:39pm

Physical Science
A 100 kg sample of a metal is cooled from 100°C to 20°C by removing 20 kcal of heat. Calculate the specific heat capacity of the metal.
Friday, October 12, 2012 at 2:24pm

Physical Science
After a sled has passed several times over a snowy path on a hill, the grass or dirt under the snow may begin to show through where the sled has traveled. Why?
Thursday, October 11, 2012 at 8:20pm

Physical Science
if you tear a piece of material in haft, how is the density affected? sorry i repost it, just the title
Thursday, October 11, 2012 at 7:10pm

Physical Science
What is the force of an 18kg object accelerating at 4m/a squared?
Thursday, October 11, 2012 at 6:36pm

Chemistry
This is a three part problem I need help in figuring out pleaseI n each of the questions below you are going to determine a different type of balanced equation for the same reaction. Make sure your equations have the lowest whole number coefficients possible. Indicate the ...
Wednesday, October 10, 2012 at 10:35pm

Chemistry
This is a three part problem I need help in figuring out pleaseI n each of the questions below you are going to determine a different type of balanced equation for the same reaction. Make sure your equations have the lowest whole number coefficients possible. Indicate the ...
Wednesday, October 10, 2012 at 10:28pm

physical
The pail and its contents have a mass of 60 kg. If the cable is 15 m long, determine the elevation of the pulley for equilibrium. Neglect the size of the pulley at A
Wednesday, October 10, 2012 at 5:37am

Physical Science
How much heat in joules is needed to raise the temperature of 5.5 L of water from 0 degrees Celsius to 78 degrees Celsius?
Tuesday, October 9, 2012 at 1:27pm

Physical Science
A strong magnet attracts a paper cup to itself with a certain force. Does the paper cup exert a force on the strong magnet?
Tuesday, October 9, 2012 at 11:13am

science
I dissolved two different white solids into water. One solid dissolved and gave off heat and the other became cold. Reading various texts online, I was not sure if these were physical or chemical changes. Some texts say if these solids are salts then these are physical changes...
Monday, October 8, 2012 at 5:33pm

science
what are some physical properties of stars
Saturday, October 6, 2012 at 9:40pm

physical science
An object which is 0.52m tall is located 1.13m in front of a plane mirror. How tall is the image as seen in the mirror?
Saturday, October 6, 2012 at 5:01pm

chemistry
When two solutions are mixed and a new color is observed, is this color change an indication that a chemical reaction has occurred? Explain. It is not possible to directly observe chemical bonds breaking and forming during a reaction, molecules and atoms are way too small. ...
Friday, October 5, 2012 at 5:26pm

chemistry
Would you expect a chemical change to be always accompanied by a physical change?Pls. Explain
Friday, October 5, 2012 at 4:42pm

health
The key to using a pedometer to meet the Physical Activity Guidelines for Americans is to _________. A. First set a time goal and then calculate how many steps are needed each day to reach that goal B. First set a time goal and then calculate how rigorous the steps need to be ...
Friday, October 5, 2012 at 12:11pm

Advanced physical science
An astronaut drops a golf ball to the surface of the moon from a height of 1.5m. The golf ball has a velocity of 2.24 m/s right before it lands on the moon (assume this height to be zero). What is acceleration due to gravity on the moon?
Thursday, October 4, 2012 at 11:20pm

Advanced physical science
At the top of the Washington monument, a bird drops an acorn into the reflecting pool 169m below. If the acorn has a massof 1.0 kg, with what velocity would it hit the water?
Thursday, October 4, 2012 at 11:17pm

Advanced physical science
A fiery ball of wood is loaded into a medieval catapult to be thrown into a castle. Unfortunately, the attacking heathens are not very smart and since geometry and physics were not studied in their time, they launched the ball straight up into the air. The catapult launcher ...
Thursday, October 4, 2012 at 11:13pm

physical science
A Weather balloon carries instruments that measure temperature, pressure, and humidity as it rises through the atmosphere. Suppose such a balloon has a volume of 1.2 m3 at sea level where the pressure is 1 atm and the temperature is 20oC. When the balloon is at an altitude of ...
Thursday, October 4, 2012 at 8:44pm

World Geography
What human and physical features influence the size and distribution of settlements?
Thursday, October 4, 2012 at 12:46pm

World Geography
How do push and full factors and physical geography affect immigration?
Thursday, October 4, 2012 at 12:44pm

physical science
How do we add forces that act at an angle?
Thursday, October 4, 2012 at 11:20am

Chemistry
Would you expect a chemical change to be always accompanied by a physical change? Explain?
Wednesday, October 3, 2012 at 4:22pm

Physical Science
8 letter word for a substance that can be broken down into two or more simpler substances?
Tuesday, October 2, 2012 at 11:45pm

science
make a graphic organizer to show ways how ways to cause physical changes to a piece of paper
Tuesday, October 2, 2012 at 8:43pm

Physical science
I need help on how to set up a formula for 27c and 750 mm hg,a sample of hydrogen occupies 5.00 l how much space will it occupy at stp
Tuesday, October 2, 2012 at 5:29pm

HCR210
How might a novice confuse the following advance directives within the Patient Self-Determination Act when distinguishing information as administrative or clinical? Here is my answer please tell me what you think.... administrative data includes demographic, socioeconomic, and...
Monday, October 1, 2012 at 5:43pm

Physical science
Why through photosynthesis we mustn't put sodium or potassium hydroxide?? (an experiment for testing the carbon dioxide if it is important for the starch formation)
Monday, October 1, 2012 at 4:27pm

chemistry ----------- chemistry
on the atomic level , how are physical changes and chemical changes different ?
Monday, October 1, 2012 at 2:08am

physical science
determine how many millimeters of soft drink in a 2-L bottle and how many are in a sixpack of soda cans.Also express each answer in liters.
Monday, October 1, 2012 at 12:40am

physical chemistry
2 liters of N2 at 0 degree Celsius and 5 atm pressure are expanded isothermally against a constant pressure of 1 atm until the pressure of the gas is also 1 atm. Assuming the gas to be ideal, what are the values of work,delta E, delta H, and q for the process?
Saturday, September 29, 2012 at 11:10pm

physical chemistry
piston whose area is 60 cm2 moves through a distance of 20 cm against a pressure of 3 atm. calculate the work done in joules and calories
Saturday, September 29, 2012 at 10:08pm

Physical science.
A skydiver who jumps out of a plane that has a forward velocity of 40 m/s. That means that the skydiver has a forward velocity of 40m/s. Ignore the air resistance. The questions: What difference is there between the downward velocities of the skydiver who jumped out of the ...
Friday, September 28, 2012 at 12:15pm

physical science
explain why elements in a group on the periodic table have similar chemical properties?
Friday, September 28, 2012 at 11:00am

phycology
Because Lucy is large for her age, she may not have many friends. This is an example of the interaction between which two types of development? A. Physical and psychosocial B. Physical and cognitive C. Cognitive and psychosocial D. Psychosocial and intellectua My choice is A, ...
Thursday, September 27, 2012 at 5:48pm

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, September 27, 2012 at 1:22am

physical
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, September 27, 2012 at 1:12am

Physical scince please help
What happens to the particles inside the balloon?do the... A) increase in speed B) decrease in speed C) the particles increase in size D) the particles decrease in size E) increase in number F) decrease in number G) something else happens like_____________
Wednesday, September 26, 2012 at 9:43pm

Physical science
What happens to a ballon as it rises up into the atmosphere? A) increases in volume B) decreases in volume C) the outside atmosphere really makes no differences to the balloons volume
Wednesday, September 26, 2012 at 9:25pm

history
during the colonial 1580-1776 which physical feature presented the greatest obstacle to colo nists who wanted to move westward
Wednesday, September 26, 2012 at 9:20pm

Physical science
Why does pressure increase as depths increase?
Wednesday, September 26, 2012 at 8:58pm

Physical Science
The static frictional between a 500 kilogram box of bricks and the floor is 500 Newton’s. The kinetic frictional force in only 220 Newton’s. How many Newton’s of force must a worker exert to get the moving?
Wednesday, September 26, 2012 at 7:10pm

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