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Recent Homework Questions About Physical Fitness

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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

science
when wechange the axis of rotation in torque then what will be physical interpretation?
Wednesday, September 26, 2012 at 9:28am

chemitry--- physical & chemical change---
describe a physical change that appears to change chemically???
Tuesday, September 25, 2012 at 11:25pm

Science
What happens to an object when it goes tough a physical change?
Tuesday, September 25, 2012 at 6:59pm

Adult Education
Choosing to blow the whistle on your employees or coworkers can create all kinds of legal, ethical, and career complications. Here are five common workplace scenarios that will challenge employees about whether or not they should go public with potentially damaging charges. ...
Monday, September 24, 2012 at 2:50pm

physical education
when i am playing basketball i can't seem to get the basketball into the hoop, so how do i shoot a baksetball?
Sunday, September 23, 2012 at 3:43pm

physical
Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different directions. Ricardo walks 28.0 in a direction 60.0 west of north. Jane walks 16.0 in a direction 30.0 south of west. They then stop and turn to face each ...
Saturday, September 22, 2012 at 3:54pm

health
What physical symptoms often accompany social phobia?
Saturday, September 22, 2012 at 2:19pm

health
A. Fad diet B. Low-carb diet C. Stick-to-it diet D. Counting calories diet =B What are other factors that contribute to being overweight and obese besides diet and behavior? A. Personality and temperament B. Physical fitness and athletics C. Environment and genetic factors D...
Friday, September 21, 2012 at 9:56pm

physical science
A 70-kg man and a 50-kg woman are in a 60-kg boat when its motor fails. The man dives into the water with a horizontal speed of 3m/s in order to swim ashore. If he changes his mind, can he swim back to the boat if his swimming speed is 1m/s? If not, can the woman change the ...
Friday, September 21, 2012 at 5:46pm

physical scienece
Does every moving body possess kinetic energy? Does every stationary body possess potential energy?
Friday, September 21, 2012 at 3:09pm

physical education
why is aerobic exercise the best exercise of total weight loss and fitness training?
Friday, September 21, 2012 at 12:35am

college us history to 1877
you need to compare and Contrast the New England, Southern and Middle colonies using geography including a appraisal of a geographic perspective that considers physical and cultural processes as they effect the areas, population, reason for coming to America, religion, and ...
Thursday, September 20, 2012 at 6:30pm

college us history to 1877
compare and Contrast the New England, Southern and Middle colonies using geography including a appraisal of a geographic perspective that considers physical and cultural processes as they effect the areas, population, reason for coming to America, religion, and economy.
Thursday, September 20, 2012 at 2:52pm

physical
From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval 1.00 min to 4.30 min? ...
Thursday, September 20, 2012 at 8:28am

physical
From t = 0 to t = 3.30 min, a man stands still, and from t = 3.30 min to t = 6.60 min, he walks briskly in a straight line at a constant speed of 1.76 m/s. What are (a) his average velocity vavg and (b) his average acceleration aavg in the time interval 1.00 min to 4.30 min? ...
Thursday, September 20, 2012 at 7:39am

physical science
a 70 kg man and 50 kg woman are in a boat when its motor fails. the man dives into the water with a horizontal speed of 3 m/s in order to swim ashore. if he changes his mind, can he swim back to the boat if his swimming speed is 1 m/s? If not, can the woman change the boats ...
Wednesday, September 19, 2012 at 5:13pm

physical science
a yo-yo is swung in a vertical circle in such a way that its total energy KE and PE is constant. At what point in the circle is this speed maximum? A minumum? why? (b) if the yo-yo has a speed of 3 m/s at the top of the circl, whose radius is 80 cm, what is tis speed at the ...
Wednesday, September 19, 2012 at 4:50pm

physical sciencei
is the work needed to bring a car's speed from 0 to 10 km/h less than, equal to or more then the work needed to bring its speed from 10 to 20 km/h? if the amounts of work are different, what is the ratio between them?
Wednesday, September 19, 2012 at 4:25pm

physical science
a weightlifter raises a 70 kg barbell from the floor to a height of 2.2m in 1.2s. What was his average power output during the lift?
Wednesday, September 19, 2012 at 4:11pm

physical science
a 1kg object has kinetic energy of 1J when its speed is?
Wednesday, September 19, 2012 at 4:08pm

english
Word bank: Adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina She has many interesting ideas but she seems to lack the physical and mental (...
Tuesday, September 18, 2012 at 9:12pm

science
Is distillation a chemical or physical change? My answer is a physical change. Is this Correct? My Mom wrote to ask you guys to check her checking my answers. Who is right?
Monday, September 17, 2012 at 11:11pm

science
I need a little assistance. Can you help? The question which seems to be simple enough is What is a physical change? My son answered - A physical change is any change that alters the form or appearance of matter into a different substance. I do not agree. He is missing ...
Monday, September 17, 2012 at 10:57pm

Physical Chemistry
The escape velocity, the velocity required by an object to escape from the gravitational field is given V^e = (2gr)^1/2 where r is the radius for Earth (6.37 x 10^6m). At what temperature will the c of an H2 molecule and of an N2 molecule attain the escape velocity?
Monday, September 17, 2012 at 3:42pm

Poetry
Given your knowledge of dualism, choose the best interpretation of presence of dualism in this excerpt from an Emily Dickinson poem: The brain is wider than the sky, For, put them side by side, The one the other will include With ease, and you beside. A.The poem suggests that ...
Monday, September 17, 2012 at 8:47am

Physical Chemistry
Calculate the pressure and temperature at which 1.00 mole of CO gas will be in the same corresponding state as 1.00 mole of H2 gas at 2.00 bar and 30.0 degrees celsius. Use any critical constants necessary for both gases.
Sunday, September 16, 2012 at 1:57pm

chemistry
is resistant to corrosion physical or chemical
Sunday, September 16, 2012 at 1:04pm

Physical science
If you put a 9th grade student in a bathtub and he foisted with most of his head and upper chest above water, how much water would spill out? Additional Information: Bathtub was full of the brim Student is male, and has a normal male IQ (85) Student weights 80kg Student has a ...
Saturday, September 15, 2012 at 7:20pm

Physical science
Will a ship loaded with beach balls weight more, less, or the same, as the ship empty?
Saturday, September 15, 2012 at 7:15pm

Economics
A person is willing to pay $50 per visit for physical therapy, but she pays $35 per visit. This person receives a consumer surplus of $85 per visit. Is this true or false/
Friday, September 14, 2012 at 11:58pm

physical sicence
how fast must a ball be thrown upward to reach a height of 12 m?
Friday, September 14, 2012 at 10:26pm

the exceptional child
physical disabilities affect young children's learning because: a.physical disabilities always affect thinking. b.cerebral palsy gets progressively worse. c. physical therapy takes time away from learning. d.their learning is primarily activity-based.
Friday, September 14, 2012 at 9:17pm

physical science
the 200g head of a golf club moves 40 m/s in a circular arc of 1.2m radius. How much force must the player exert on the handle of the club to prevent it from flying out of her hands at the bottom of the swing? ignore the mass of the clubs shaft.
Friday, September 14, 2012 at 8:03pm

physical science
a force of 20 N gives an object an acceleration of 5 m/s2. (a)What force would be needed to give the same object an acceleration of 1 m/s2. (b) what force would be needed to give an accelerattion of 10 m/s2 ?
Friday, September 14, 2012 at 7:57pm

physical science
the acceleration of gravity on the surface of venus is 8.9 m/s2. would a ball thrown upward from venus return to the ground sooner or later than a ball thrown upward with the same speed on the earth?
Friday, September 14, 2012 at 7:37pm

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