Wednesday
June 19, 2013

# Homework Help: Health: Physical Fitness

Recent Homework Questions About Physical Fitness

physics
A grandfather clock uses a physical pendulum to keep time. The pendulum consists of a uniform thin rod of mass M = 7.01 kg and length L = 0.15 m that is pivoted freely about one end, with a solid sphere of the same mass, 7.01 kg, and a radius of L/2 centered about the free end...
Sunday, February 19, 2012 at 9:43am

LANG
noxious: harmful or injurious to health or physical well-being A. connotative B. denotative it think A
Saturday, February 18, 2012 at 5:20pm

Physical Science
​ A 3-kg stone is dropped from a height of 100 m.  Find its kinetic and potential energies when it is 50 m from the ground.
Friday, February 17, 2012 at 11:06am

physical Science
When a light bulb is rated at 60 W ft what do this mean?
Thursday, February 16, 2012 at 9:28pm

physical science
a race car having a mass of 2550 kg is accelerated by a force of 127,500n.what is the accelerration?
Wednesday, February 15, 2012 at 9:13pm

physical science
A child pushes a book a distance of 17m. If 5J of work was done, how much force was used?
Wednesday, February 15, 2012 at 6:15pm

chemistry
Mercury reacts with oxygen to produce mercury(II) oxide. Hg(l) + O2(g) → HgO(s) a. Balance the reaction equation. Include physical states. 2Hg(l) + O2(g) → 2HgO(s) b. What is the theoretical yield (in grams) of HgO if 255 g of Hg are reacted with 255 g of O2? ???
Tuesday, February 14, 2012 at 10:32pm

chemistry
1-Butene (CH2=CHCH2CH3) burns in the presence of O2 to produce CO2 and H2O. Write the balanced chemical equation for this reaction (omit physical states and use condensed molecular formulas). CH2CHCH2CH3+6O2=4CO2+4H2O
Tuesday, February 14, 2012 at 10:12pm

chemistry
Aluminum metal reacts with oxygen gas (O2) to form aluminum oxide. a. Write a balanced equation for this oxidation-reduction reaction. (In this problem you need not worry about the physical state of the reactants or product.) 2Al+3O2=2Al2O3 b. which reactant is oxidized? O2 c...
Tuesday, February 14, 2012 at 10:00pm

English
jake dad not be anymore physical and he not be able to grab jake daughter when she fall into lake. Jake effects rescue. what be the symbolic meaning of incident? jake own past come infront of his eyes?
Tuesday, February 14, 2012 at 8:09pm

English
why jake dislike how his father smile at his attempt and failure in physical activies? That be because he feel embarrassed?
Tuesday, February 14, 2012 at 7:30pm

Physical Geography
38 degrees celcius is what degree F?
Monday, February 13, 2012 at 10:56pm

Human Services
on a intake what are physical factors?
Monday, February 13, 2012 at 10:18pm

psychiatry
Can someone help me to understand physical factors, and psychosocial factors? The case I am dealing with has to do with a female drug user who was emotional abused by her parents who were also drug users and her husband physically abused her. Would the physical factors include...
Monday, February 13, 2012 at 7:03pm

Physical science
A 9kg mass travelling eastwards at 4m.-1 collides with a 3kg mass westwards at 8m.-1.whatis the total momentum of the masses?
Monday, February 13, 2012 at 2:10pm

SCIENCE
Two 2.6 kg physical science textbooks on a bookshelf are spaced 0.22 m apart. What is the magnitude of the gravitational attraction between the books?
Sunday, February 12, 2012 at 11:10pm

physical
Consider a pulse of laser light aimed at the moon that bounces back to earth. The distance between Earth and Moon is 3.8 x 10 (small eight above) m. Show that the round-trip time for the light is 2.5 s.
Sunday, February 12, 2012 at 11:41am

Physical science
Is it possible for an object to have more kinetic energy but less momentum than the other object? Less kinetic energy but more momentum? *i know the answer to both questions is yes, however, i cannot think of examples ??
Saturday, February 11, 2012 at 7:57pm

english
i need help making my conclusion sentence more sense for essay on love. True love be built on solid base of trust, commitment, selflessness and shared admiration without judgment and physical attraction.
Saturday, February 11, 2012 at 7:28pm

physical science
A worker pushes horizontally on a large crate with a force of 312 N, and the crate is moved 6.5 m. How much work was done?
Saturday, February 11, 2012 at 6:38pm

physical Science
What was the average speed in km/h of a car that travels 400km in 4-5h?
Thursday, February 9, 2012 at 7:24am

English
Thank you very, very much indeed! Here is the second part, concerning the scientific and linguistic objectives. The question is: " What are the concrete objectives of the partnership"? 1)Scientific objectives - describing the biodiversity, the presence of ...
Wednesday, February 8, 2012 at 10:22am

English
Writeacher, I have finally reached an agreement with my German partner. However, I'll have to check the English version of the application form by tomorrow (which is full of mistakes and contradictions! Plus: I'm ill and on sick leave). I really hope you can help me ...
Wednesday, February 8, 2012 at 9:29am

physical
a copper calorimeter of mass 150g was half filled with water of 300g and temperature 0c. 5g of ice at oc was added to the content, later some quantity of steel was passed into the mixture and temperature by 20c. calculate the quantities of steel added if the latent heat of ...
Tuesday, February 7, 2012 at 6:02pm

Physical Chemistry
A mole of air (80% Nitrogen, and 20% Oxygen by volume) at 298.15K is brought into contact with liquid water which has a vapor pressure of 3168Pa at this temperature. a) what is the volume of the dry air if the pressure is 1 bar? b) what is the final volume of the air saturated...
Monday, February 6, 2012 at 10:45pm

Science
What environmental niche is most suitable for an animal that eats fruit? A.artic tundra B.temperate swamp C.temperate plains D.tropical forest D? Which of these is NOT an adaptation for the Fennec Fox? A.beige coat to camoflauge B.small ears to prevent heat loss C.hunting ...
Monday, February 6, 2012 at 8:21pm

English
Thank you very much. As for my project, I translate the presentation of the school literally (without changing any single word). I I think we should shorten sentences and choose more appropriate words. 1) The scientific high school …… was founded in 1969. It ...
Monday, February 6, 2012 at 7:40pm

Science
What environmental niche is most suitable for an animal that eats fruit? A.artic tundra B.temperate swamp C.temperate plains D.tropical forest D? Which of these is NOT an adaptation for the Fennec Fox? A.beige coat to camoflauge B.small ears to prevent heat loss C.hunting ...
Monday, February 6, 2012 at 5:23pm

Physical Anthropology
Given the organic remains associated with the fossil, what method might yield a robust chronological date for Spy 2, a Neanderthal from Beligum?
Sunday, February 5, 2012 at 10:43pm

Physical Anthropology
Given the numerous large and small mammalian remains associated with the fossil, what method might be useful to estimate and absolute data for DNH 7, a nearly complete cranium of Australopithecus robustus from the Drimolen site in South Africa?
Sunday, February 5, 2012 at 10:42pm

Physical Anthropology
KNM-ER-3733, a fossil cranium from early Pleistocene, was found in a stratigraphic sequence in East Africa (Koobi Fora).What methods might be useful to estimate a chronological date for the fossil? What additional techniques might support the chronometric date?
Sunday, February 5, 2012 at 10:41pm

Physical Science
The string of a certain yo-yo is 80 cm long and will break when the force on it is 10 N. What is the highest speed the 200 g yo-yo can have when it is being whirled in a circle? Ignore the gravitational pull of the earth on the yo-yo.
Wednesday, February 1, 2012 at 1:22pm

Physical Science
A man has a mass of 70 kg. A) What would his weight be on Jupiter which as an acceleration of gravity of 25m/s^2? B) What would the mass of a person have to be in order for him to weigh that amount on earth?
Wednesday, February 1, 2012 at 1:20pm

Physical Science
A force of 20 Newtons gives a brick an acceleration of 5 m/s^2. What is the mass of the brick?
Wednesday, February 1, 2012 at 1:20pm

Physical Science
A bicycle and its rider together have a mass of 80 kg. If the bicycle's speed is 6m/s, how much force is needed to bring it to a stop in 4 seconds
Wednesday, February 1, 2012 at 1:19pm

Physical Science
The string of a certain yo-yo is 80 cm long and will break when the force on it is 10 N. What is the highest speed the 200 g yo-yo can have when it is being whirled in a circle? Ignore the gravitational pull of the earth on the yo-yo.
Tuesday, January 31, 2012 at 5:07pm

Physical Science
A man has a mass of 70 kg. A) What would his weight be on Jupiter which as an acceleration of gravity of 25m/s^2? B) What would the mass of a person have to be in order for him to weigh that amount on earth?
Tuesday, January 31, 2012 at 4:44pm

Physical Science
A force of 20 Newtons gives a brick an acceleration of 5 m/s^2. What is the mass of the brick?
Tuesday, January 31, 2012 at 4:30pm

Physical Science
A bicycle and its rider together have a mass of 80 kg. If the bicycle's speed is 6m/s, how much force is needed to bring it to a stop in 4 seconds.
Tuesday, January 31, 2012 at 4:25pm

physical chemistry
2. The retina of a human eye can detect light when radiant energy incident on it is at least 4.0X10-17 J. For light of 600-nm wavelength, how many photons does this correspond to?
Monday, January 30, 2012 at 7:34am

Physical Science
Three balls (see below) are dropped simultaneously from the 40th floor of a tall building into the air below. A) In what order will they hit the ground, or will they arrive at the same time? B) Provide an explanation for your answer above. Ball A (softball size; wt= 50 g) Ball...
Sunday, January 29, 2012 at 9:35pm

Physical Science
If there were no air resistance, a quarter dropped from the top of New York's empire state building would reach the ground 9.6 seconds later, what would its speed be? How high is the building?
Sunday, January 29, 2012 at 8:03pm

Physical Science
A person dives off the edge of a cliff 33m above the surface of the sea below. Assuming that air resistance is negligible, (a) How long does it dive last? (b) and with what speed does the person enter the water?
Sunday, January 29, 2012 at 7:54pm

physical science
Joe baked a cake for his mother's birthday. When he removed the cake from the oven, Joe noticed that the cake had not risen. Joe guessed that the baking powder he had used was too old. He designed the following experiment to test his idea. Joe prepared two cakes ¡V ...
Sunday, January 29, 2012 at 6:54pm

physical science
is the study of the moon's phases a pure or applied science
Sunday, January 29, 2012 at 6:49pm

physical education
I'm doing a gym project on some terms. I need to find pictures for each term. What would be a good picture to represent the words, target zone and resting heart rate?
Sunday, January 29, 2012 at 11:07am

physical
a rocket moves through outer space at 11,000 m/s at this rate how much time would be required to travel the distance from earth to moon which is 380,000 km
Saturday, January 28, 2012 at 6:59pm

Science
Emotional and physical changes in boys and girls.
Saturday, January 28, 2012 at 12:56pm

English
Writeacher, this is my last doubt! As I couldn't find anything on the objectives of a project on the biodiversity of water in English I'll have to refer to these objectives which refer to soil. Do you think you can help me? The topic must be water (rivers, ocean etc) ...
Friday, January 27, 2012 at 7:38pm

physics
Cause and Effect Make a graphic organizer like the one on page 301 of your textbook. Fill it with ways to cause physical changes to a piece of paper. Describe the effects each change would have on the paper.
Friday, January 27, 2012 at 12:07am

social studies
How is the physical geography of northern Europe connected to the economies of northern Europe?
Thursday, January 26, 2012 at 7:43pm

physical science
by what means can earth scientists predict discharge of a stream afeter a rainstorm?
Thursday, January 26, 2012 at 6:40pm

physical science
A rectangular container measuring 16cm times 46cm times 67 cm is filled with water what is the mass of this volume of water in kilograms and grams? (take the density of water to be 1000 kg/m cube
Thursday, January 26, 2012 at 9:49am

physical
A bullet of mass 0.01 kg is moving horizontally with a speed of 100 m/s when it hits a block of mass 2 kg that is at rest on a horizontal surface with a coefficient of friction of 0.4. After the collision the bullet becomes embedded in the block.
Thursday, January 26, 2012 at 8:58am

Science/English
writeacher, I urgently need the help of a science expert to help me determine the possible scientific objectives (biochemical) of a project on biodiversity on water. What else can be included? The project is addressed to 16-year-old students with an intermediate level of ...
Thursday, January 26, 2012 at 7:55am

English
I urgently need the help of a science expert to help me determine the possible scientific objectives (biochemical) of a project on biodiversity on water. What else can be included? I wrote them but I need your check: Biodiversity in water and waterways in our local area. ...
Thursday, January 26, 2012 at 7:19am

physical science
If a jogger 10 m away from point p and runninp at a constant speed of 2 m's sees the camera at the same instant it starts falling from the ballon,will he be able to catch the camera before it strikes the ground? Use a culculation to show how you arrived at answer.
Wednesday, January 25, 2012 at 3:59pm

1. Which of the following statements regarding stress and hair loss is NOT true? a. The best treatments for stress induced hair loss are to improve sleep quality, manage stress, and have a healthy dietary intake. b. Stress may cause hair to fall out as a result of destroyed ...
Wednesday, January 25, 2012 at 3:48pm

physical
A crate of mass 20kg is pulled by a force of 100N at an angle 30 above the horizon an friction force of 20N develops between the crate and surface draw a force diagram and free body diagram
Wednesday, January 25, 2012 at 9:58am

physical science
A stone is dropped from rest at the top of a tall building. Determine the distance the ball has traveled after ½ second, one second, 3/2 seconds, and 2 seconds. How fast is the ball moving at the end of the 2 seconds?
Wednesday, January 25, 2012 at 1:20am

Chemistry
How would i summarize the physical properties of ionic compounds, non polar covalent compounds, polar covalent compounds and covalent solids? (this is one part of the lesson i never understood)
Monday, January 23, 2012 at 9:33pm

physical science
What is the pH of a 0.01 M solution of the strong acid HNO3 in water?
Monday, January 23, 2012 at 7:19pm

physical science
a soccer player kicks a ball straight up into the air at 6 m/s.ignore air resistance.what is the velocity of the ball at its highest point?
Monday, January 23, 2012 at 3:01pm

physical science
a soccer player kicks a ball straight up into the air at 6 m/s.ignore air resistance.what is the velocity of the ball at its highest point?
Monday, January 23, 2012 at 2:59pm

physical science
a soccer player kicks a ball straight up into the air at 6 m/s.ignore air resistance.what is the velocity of the ball at its highest point?
Monday, January 23, 2012 at 2:51pm

physical science
a tennis player hits a ball of mass 200 g,which is moving towards him with a velocity of 30m/s west. calculate the impulse of the ball. b.the force the racket will exact on the ball if the time of contact is 0.2 seconds
Sunday, January 22, 2012 at 8:16pm

Anthropology
Are we affected more by nature or nurture growing up? Nature being a person’s genes determining their physical and behavioral traits and nurture being influenced by their environment (parenting style, education, socialization).
Sunday, January 22, 2012 at 6:12pm

English102
Could someone take a look at my sentence outline for my english class, I have been working on this for awhile and I do not know why this is so hard for me to get. Hopefully I am getting it a little betternow, thanks for all the help. Thesis Statement: Bullies have found it ...
Sunday, January 22, 2012 at 10:58am

physics
How do you measure the volume of? A) A liquid? B) A regular shaped Solid ? C) An irregular shaped solid? State where each of the following is a chemical or physical change. A) A match burned. B) Ice cream melts. C) Acid dissolves metal producing H2. D) Salt dissolves in h 2 o
Saturday, January 21, 2012 at 3:04pm

criminal justice
The job profile of correctional officers includes security and inmate accountability. They are responsible for preventing disturbances, physical attacks, and escapes by the prisoners or inmates. The job profile of correctional officers can make them both sympathetic as well as...
Saturday, January 21, 2012 at 2:37am

Chemistry
The four statements below are used for applications of Hess's law. One of the statements is erroneous. Choose that statement. a) the value of delta H for any reaction that can be written in steps is the sum of the values of delta H for each of the individual steps. b) when...
Friday, January 20, 2012 at 5:58pm

teh density of copper is 8.92 g/cm3. If you plotted the mass of copper in grams versus the volume in cubic centimeters, what would the slope of the line be?
Friday, January 20, 2012 at 3:41pm

Physical Science/ Chemistry
I don't get how to balance this equation. Al+O2 → Fe2O3 Where is the Al in the product? Where is the Fe in the reactants? I am very lost with this problem.
Friday, January 20, 2012 at 2:23pm

chemistry
As the temperature of a gaseous substance is decreased at constant pressure, it will undergo a series of physical changes. Which is the correct sequence of physical states that will be encountered? a.Liquid, solid, gas b.Gas, solid, liquid c.Solid, liquid, gas d.Gas, liquid, ...
Friday, January 20, 2012 at 1:52pm

chemistry
As the temperature of a gaseous substance is decreased at constant pressure, it will undergo a series of physical changes. Which is the correct sequence of physical states that will be encountered?
Friday, January 20, 2012 at 1:49pm

What is the potential energy of a 3 kilogram ball this is on the ground?
Thursday, January 19, 2012 at 4:10pm

What is the kinetic energy of a 1 kilogeram ball is thrown into the air with a velocity of 30m/sec? How much potential energy does the ball have when it reaches the top of its ascent? How high into the air did the nall travel? Please help me help my child with her homework?
Thursday, January 19, 2012 at 11:36am

You are on roller blades on top of a small hill. Your PE is 1,000.0 Joules. The last time you check your mass was 60.0 kg. What is the height of the hill? if you start skating down this hill, your poetntial energy will be converted to kinetic. At the bottom of the hill, the ...
Thursday, January 19, 2012 at 11:33am

Honors Physical Science
How do you work out this sythesis equation? : Aluminum Chloride + Oxygen
Wednesday, January 18, 2012 at 6:09pm

Data networks and Telecommunication
Other than the explanation below How can switches help reduce network security problems? ________________ Switches can be used to disallow access to a network by requiring authentication to the server to all computers that plug in to a network LAN connection requiring each ...
Wednesday, January 18, 2012 at 4:09pm

English
I urgently need you to check the second part of my rephrase. I'm sending it to you separately. 1) Although Robinson describes Friday as a good-looking, healthy young man, yet he stresses that the features that make him a pleasant fellow are exactly those that most resemble...
Tuesday, January 17, 2012 at 6:19pm

English
Thank you very much. Here is the second part. I'm including the part I have to rephrase first. Thank you. 1) "His hair was long and black"; " forehead very high and large, and a great vivacity and sparkling sharpness in his eyes", "skin .... of a ...
Tuesday, January 17, 2012 at 2:36pm

English 2
At the opening of A Separate Peace, the narrator returns to the Devon School two years after graduation. to become a teacher at the school. fifteen years after graduation. to attend his sons graduation. Unlike Finny, Gene tends to be spontaneous. contradictory. envious. ...
Monday, January 16, 2012 at 5:07pm

Literacy
11. You're writing a paper on exercise and health, so you enter "exercise and health" in a keyword search to find articles in a library database. Your search, however, produces several thousand articles. Which of the following would help you retrieve fewer, more ...
Monday, January 16, 2012 at 4:22pm

physical science
the headlamp and 2 identical tail lamp are conected in paralel to batery with unknown internal resistancs.headlamp resistance wth 2.4 ohm controld by switch s1.the tail lamps are controled by s2.the resistance of the connection wired may be ignored. questions:1.determine the ...
Monday, January 16, 2012 at 1:32pm

geography
what are some of the advantages and disadvantages of south america's and europe's physical geography?
Sunday, January 15, 2012 at 5:39pm

english
Is it correct to say 'people's psychological, physical and social needs'' or instead of saying people's would I just say people?
Friday, January 13, 2012 at 7:47pm

Marketing
I need help writng a 1,050 to 1,400 paper in which you identify the environmental factors that afect global and domestic marketing decisions Anaylyze the influence of global economic interdependence and the effect of trade pratices and agreements. Examine the importance of ...
Wednesday, January 11, 2012 at 3:46pm

english
38. Which of the following sentences contains a helping verb? (1 point) Eduardo looked in the basement, but the puppy wasn’t there. Sakkom hung wind chimes because she loves the sound. Roger has never performed a solo in his life. The leader of the troop took the scouts ...
Wednesday, January 11, 2012 at 2:36pm

physical science
Write a brief essay on the topic of volcanic activity and climate change. Consider such questions as whether there is there a link between volcanic eruption and climate change and what the relationship between the two may be. Research and find a minimum of two resources to ...
Wednesday, January 11, 2012 at 2:10pm

English
Here are some more sentences I'd like you to check. Thank you very much. 1) Quietus est is a Latin statement which was used when someone repaid all their debts. (The sentence is wrong both as to the content and as to the grammar: can you say it?) 2) Hamlet uses this ...
Thursday, January 5, 2012 at 5:42pm

English
I still have some more sentences I need to check. Can you please have a look at them, too? 1) Hamlet arranges a play at court in order to expose his father's murdere. So in the third act there is the-play-within-the play that is paradoxically the only true thing in the ...
Thursday, January 5, 2012 at 1:04pm

Intro to psychology / science
Learning and memory researchers have discovered that : A.) physical exercise promotes new cell growth, while mental ecercise only maintains exsisitng cells. B.)stem cells can divide and mature throughout adulthood. C.) age is the biggest limiting factor in the creation of new ...
Thursday, January 5, 2012 at 10:00am

algebra
The Physical Education Deparment sells t-shirts for \$12 and shorts for \$8. One month, they sold 77 total items for \$780 in total. How many t-shirts did they sell?
Tuesday, January 3, 2012 at 10:40pm

Physical Science
Contrast the structure of table salt and table sugar.
Tuesday, January 3, 2012 at 8:11pm

Physical Science
Explain why adding flexible springs to a ball and stick model would make it more accurate.
Tuesday, January 3, 2012 at 7:52pm

Physics
You are at a furniture store and notice that a Grandfather clock has its time regulated by a physical pendulum that consists of a rod with a movable weight on it. When the weight is moved downward, the pendulum slows down; when it is moved upward, the pendulum swings faster. ...
Tuesday, January 3, 2012 at 11:12am

cultural diversity
i have 3 questions that i am stuck on and i really need to see if this site can help me with this ones.this my first time on here. 1.a young asian child would probably be less inclined to engage in backchanneling than a middle-class american child does because a.he or she ...
Wednesday, December 28, 2011 at 9:59pm

physical
What is the electrons velocity that made its momentum equal to the momentum of photon whose wave length 5200A?
Wednesday, December 28, 2011 at 11:07am

psychology
when physical energy has resulted in aresponse in a sense organ, it is clear that
Tuesday, December 27, 2011 at 1:13pm

physical science
pour a liter of water at 40 c into a liter of water at 20 and the final temperature of the two becomes about____________________c
Tuesday, December 27, 2011 at 12:00am

physical science
An oxygen gas tank has a volume of 8 L and a pressure of 1500 N/m2. If the temperature decreases from 2500 K to 2000 K and its volume increases to 24 L, what is its final pressure?
Monday, December 26, 2011 at 12:18am

world geography
Which of the following statements about the physical geography of North America is true?
Thursday, December 22, 2011 at 8:02pm

physical science
Brad rides his bike 20 km. He covers the distance in 45 minutes (0.75 hours). What is his speed in kilometers per hour? A.44 km/hr B.15 km/hr C.9.0 km/hr D.27 km/hr
Sunday, December 18, 2011 at 4:32pm

English
I urgently need you to check these sentences? Thank you very much in advance. 1) From which perspectives does Hamlet consider death in his famous soliloquy “To Be or not to Be”? The Medieval perspective which considers death as physical liberation from the prison of ...
Sunday, December 18, 2011 at 2:14pm

Physical Chemistry
Substitute U = uV and P = (1/3)u into the equation (ðU/ðV)T = T(ðP/ðT)V – P to show that it leads to du/u=4(dT/T). *NOTE: u depends only on T*
Saturday, December 17, 2011 at 9:59pm

physical science
Which one of these statements is true about Copernicus? a. His model included planetary orbits that were circular. b. He believed that Ptolemy's ideas about the shape of orbits were correct c. His model could not account for retrograde motion of Mars. d. His model of the ...
Thursday, December 15, 2011 at 8:59pm

physical science
An azimuth angle of 135 degrees would correspond to:
Thursday, December 15, 2011 at 8:54pm

physical science
The declination of the Sun on March 21 on Earth is
Thursday, December 15, 2011 at 8:53pm

physical science
At noon on September 21, the Sun is directly overhead at a latitude of
Thursday, December 15, 2011 at 8:52pm

physical science
An observer measures the North Star (Polaris) at an altitude of 450. The observer's position is
Thursday, December 15, 2011 at 8:51pm

physical science
A small car with a weight of 2000 lb traveling at 30 mph can stop in about 100 ft. How far does it take for a large SUV weighing 8000 lb to stop if it is also traveling at 30 mph?
Thursday, December 15, 2011 at 8:49pm

physical science
A car traveling at 30 mph can stop in about 100 ft. How far does it take for the same car to stop if it is traveling at 60 mph?
Thursday, December 15, 2011 at 8:49pm

physical science
What is the normal maximum amount of negative "g" forces allowed for a roller coaster ride?
Thursday, December 15, 2011 at 8:48pm

physical science
A force of 1 N is exerted on a 10-kg rock. What is the acceleration of the rock?
Thursday, December 15, 2011 at 8:47pm

physical science
Which of the following four bodies has the greatest kinetic energy? a. A body of mass 1 kg moving with speed 1000 m/s. b. A body of mass 2 kg moving with speed 50 m/s c. A body of mass 3 kg moving with speed 50 m/s d. A body of mass 50 kg moving with speed 2 m/s e. A body of ...
Thursday, December 15, 2011 at 8:25pm

physical science
An object on a flat frictionless table has a net horizontal force of 10 N exerted on it. What type of motion would the object have?
Thursday, December 15, 2011 at 8:00pm

physical science
A 1 kg object requires 10 N of force to lift it 5 m from the bottom of a well. (use g = 10 m/s2) What is the kinetic energy when the object has fallen halfway down the well (2.5m)?
Thursday, December 15, 2011 at 7:57pm

physical Science
A 1 kg object requires 10 N of force to lift it 5 m from the bottom of a well. (use g = 10 m/s2). The object is then dropped. What is the total energy when the object has fallen halfway down the well (2.5m)?
Thursday, December 15, 2011 at 7:51pm

physical or mental verbs
She approved the proposed marriage==this would be a physical verb right
Thursday, December 15, 2011 at 5:25pm

Physical Science
Infrared waves- electromagnetic wave with a slightly ___________ frequency than radio waves
Wednesday, December 14, 2011 at 5:12pm

Physical Science
________- radio waves bounced off an object to determine its speed and location
Wednesday, December 14, 2011 at 5:10pm

Physical Science
____________ Magnetic fields create changing elctric fields and vice versa
Wednesday, December 14, 2011 at 5:07pm

Physical Science
A ______ Electric charge creates a magnetic field
Wednesday, December 14, 2011 at 5:06pm

In the reaction between bromine and sodium, a bromine atom gains an electron. What ion is formed? Is the bromine oxidized, or is it reduced? Thank You ^_^
Wednesday, December 14, 2011 at 12:37pm

marine systems
What 3 physical factors determine the distribution of life in the ocean?
Tuesday, December 13, 2011 at 5:07pm

Physical Science
A 75 kg astronaut in space pushes against a 200 kg navil. when the astronaut lets go of the anvil pushing it:
Tuesday, December 13, 2011 at 1:32pm

In an exothermic reaction, the amount of energy required to break the attractions among the solute particles and among the solvent particles is A) greater than the energy released as attractions form between solute and solvent particles. B) less than the energy released as ...
Monday, December 12, 2011 at 12:06pm

Physical Science
Water boils at _______ 01 Kelvin. I put 373.15 but I dont know if it is right. Could someone please help me?
Monday, December 12, 2011 at 10:31am

Physical Education has been an extremely tough class, but I it has done me some justice. Despite how tough and painful it was, it all payed off in the end. Before this class started, running a mile seemed like the toughest task anyone could ever ask. Through extremely tough ...
Sunday, December 11, 2011 at 6:18pm

Revise Research Paper
Can you please revise this? Tell me what I should change? Thanks! How Media Affects Body Image By: Bryce R I Glance in the mirror and snarl at what I see, Why can’t my teeth be gleaming white? Why can’t my skin be completely acne free? The struggle to be perfect is ...
Saturday, December 10, 2011 at 9:36pm

science
Is melting ice a physical or chemical change? I think it is a physical change. Am I correct?
Thursday, December 8, 2011 at 1:08pm

physical science
One of Saturn's moons has an orbital distance of 1.87 x 108 m. The mean orbital period of this moon is approximately 23 hours. Use this information to estimate a mass for the planet Saturn.
Thursday, December 8, 2011 at 1:08pm

physical
Problem 1 A goalkeeper kicks a ball of mass 400 g in the air, and reaches a position of height 15.9 m above the ground corresponding to a horizontal distance 19.7 m from its initial position. During its flight, the ball experiences a horizontal friction force of 3 N from a ...
Thursday, December 8, 2011 at 1:45am

physical
Problem 1 A goalkeeper kicks a ball of mass 400 g in the air, and reaches a position of height 15.9 m above the ground corresponding to a horizontal distance 19.7 m from its initial position. During its flight, the ball experiences a horizontal friction force of 3 N from a ...
Thursday, December 8, 2011 at 1:39am

Physical Science
If a force of 10 N is applied to a 4.5 kg object, then the object will accelerate at 2.22 m/s2? True or false
Wednesday, December 7, 2011 at 12:10pm

physical science
a newton meter is a measure of work also known as the.... what?
Monday, December 5, 2011 at 11:35pm

Physical Science
How does the mass of all the interstellar matter in our galaxy compare with the total mass of its stars?
Sunday, December 4, 2011 at 10:48pm

philosophy
What argument Williams offer in defense of a physical criterion of personal identity that Parfit critiques. did whether Parfit succeeds in answering Williams.
Sunday, December 4, 2011 at 10:41am

Physical Science
(a) Why is the sun considered to be located in the central disk of our galaxy? (b) What is thought to occupy the center of the disk?
Saturday, December 3, 2011 at 11:28pm

Physical Science
How does the mass of all the interstellar matter in our galaxy compare with the total mass of its stars?
Saturday, December 3, 2011 at 11:28pm

Physical Science
Both galactic nebulas and globular clusters occur in our galaxy. Distinguish between them.
Saturday, December 3, 2011 at 11:27pm

Physical Science
Which astronomical objects that appear as points of light to the unaided eye appear as disks with the help of a telescope?
Saturday, December 3, 2011 at 11:15pm

physical science
On the surface of the moon, where the acceleration due to gravity is about one-sixth that of Earth, a 100-kg astronaut would have a mass of_____ and a weight of _____ A. 100kg, 1000N B. 16.6kg, 166N C. 100kg, 166N D. 600kg, 1000N
Friday, December 2, 2011 at 3:55pm

physical science
is it possible for people of different masses to have the same power output? Explain
Tuesday, November 29, 2011 at 10:51pm

E-COMMERCE
Imagine that you own a small, local clothing store along the Jersey Shore boardwalk and decide that you want to engage in e-Commerce. Write a 4-5 page paper on the following: 1. Imagine that someone has offered you \$1,000 to buy your domain name shortly after your started your...
Monday, November 28, 2011 at 10:33pm

chemistry
valerie placed 1.0g of salt into one beaker, 1.0g of soil into a second beaker, and 2.0g of sugar in a third beaker. She then added 200mL of water to each beaker and stirred the contents for 3 mintues. How many compounds and how many mixtures did Valerie make? Identify each. ...
Monday, November 28, 2011 at 3:31pm

Physical science
The brakes of a car are applied to give it an acceleration of -3m/s^2. The car comes to a stop in 5 s. What was its speed when the brakes were applied?
Sunday, November 27, 2011 at 11:25pm

physical science
absolute zero is the same as
Sunday, November 27, 2011 at 5:56pm