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July 22, 2014

Search: While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 56 kg person develops a power of 75 W during a race, how fast is the person running? (Assume a running step is 1.5 m long

Number of results: 39,146

Physics
While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 61-kg person develops a power of 75 W during a race, how fast is the person running?
October 12, 2013 by Anonymous

physics - runner
While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 60 kg person develops a power of 78 W during a race, how fast is the person running? (Assume a running step is 1.5 m long.)
June 4, 2010 by lau

Physics
While running, a person dissipates about 0.6 J of mechanical energy per step per kilogram of body mass. If a 60-kg person runs with a power of 70 Watts during a race, how fast is the person running? Assume a running step is 1.5 m long.
July 9, 2010 by Deanna

Physics 111
While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 62 kg person develops a power of 67 W during a race, how fast is the person running? (Assume a running step is 1.5 m long.)
October 14, 2010 by Blake

physics
Running at 2.0 m/s a 45.0 kg person collides with a 90.0 kg person who is traveling at 7.0 m/s in the other direction. Upon collision, the 90 kg person continues to travel forward at 1.0 m/s. How fast is the 45 kg person knocked backwards?
November 29, 2011 by Jane

Statistics
Many times, we are required to use statistical measures to try and construct a problem. We run a program for a 10 different inputs. The times are measures in 1-second intervals and none of them took 0 secs. a. Suppose the standard deviation of a set of times we run the program...
June 30, 2013 by Rubi

Spanish
What is this asking? ¿Cómo eres? choices would be: This question asks about about a person's health about what a person is like how a person is feeling today what a person is wearing I think it is about a person's health or how a person is feeling today? Thank you
December 21, 2010 by Jeremy

Physics 11
Two people start running from rest. The first person has a mass of 59 kg and is wearing dress shoes with a coefficient of static friction of 0.52. The other person is wearing running shoes with a coefficient of static friction of 0.66. Explain why we do not really need the ...
March 31, 2013 by Anonymous

physics
A 6kg cat is running across a table which is 1.2 m tall. The kinetic energy of the cat is 48 j. A) how fast is the cat running? B) what is the potential energy of the cat? C) what is the total mechanical energy of the cat?
February 20, 2012 by Shelby

physics
A 6kg cat is running across a table which is 1.2 m tall. The kinetic energy of the cat is 48 j. A) how fast is the cat running? B) what is the potential energy of the cat? C) what is the total mechanical energy of the cat?
February 20, 2012 by Shelby

Ratios Math
Please help The following table shows the number of calories burned per hour (cal/h) for a variety of activities, where the figures are based on a 150-pound person. Bicycling 6mi/h 240 Running 10mi/h 1280 Bicycling 12mi/h 410 Swimming 25yd/min 275 Cross-country skiing 700 ...
March 1, 2008 by Sherri

English
any suggestions on this: i can't think of this word, when you read a view point of someone who isn't " ", like a person might talk about a person badly but this person just tells about a person without feelings.
February 6, 2011 by Amy

physics
While taking a rest on a tree branch, a daring cowboy sees a wild horse running towards the tree he was on. he wants to land on the horses back when it passes under the tree. if the horse is running at a constant velocity of about 2 m/s and the vertical distance between the ...
September 22, 2013 by JT

physics
A disk-shaped merry-go-round of radius 2.63 m and mass 155 kg rotates freely with an angular speed of 0.596 rev/s. A 59.4 kg person running tangential to the rim of the merry-go-round at 3.68 m/s jumps onto its rim and holds on. Before jumping on the merry-go-round, the person...
June 6, 2007 by PHYChica

physics
a person is sled-riding down a hill that is 15.0 ft high. starting at the top with a speed of 10.0 ft/s, the sled reaches the bottom with a speed of 25.0 ft/s. (A) determine whether mechanical energy has been conserved. (B) why might mechanical energy not be conserved?
February 28, 2012 by taylor

Physics
A person consumes 2500 kcal/day while expanding 3500 kcal/day. In a months' time, about how much weight would this person lose if the loss were essentially all from body fat? (Body fat has an energy content of about 4100 kcal per pound).
November 19, 2012 by T

Physics
Biomedical measurements show that the arms and hands together typically make up 13.0% of a person's mass, while the legs and feet together account for 37.0% . For a rough (but reasonable) calculation, we can model the arms and legs as thin uniform bars pivoting about the ...
February 23, 2012 by john

Physics help please!!!
Biomedical measurements show that the arms and hands together typically make up 13.0% of a person's mass, while the legs and feet together account for 37.0% . For a rough (but reasonable) calculation, we can model the arms and legs as thin uniform bars pivoting about the ...
February 23, 2012 by john

PE
While I'm running the mile I feel a real pain in my legs and always stop after running a couple of laps. How do I jog and not stop even if there is pain
November 15, 2008 by LIza

Physics
While you are sitting on a park bench with your friend, you grab his hat and start running in a straight line away from him. Over the first 49.7m, you accelerate at 1.00m/s^2 up to your maximum running speed. You then continue at you maximum running speed for 7.02s more before...
September 29, 2012 by joane

Physics
A 79.0-kg fullback running east with a speed of 4.00 m/s is tackled by a 93.0-kg opponent running north with a speed of 3.00 m/s. (a) Why does the tackle constitute a perfectly inelastic collision? (b) Calculate the velocity of the players immediately after the tackle. ...
October 4, 2011 by Allie

physics
When you are running and want to stop quickly, you must decelerate quickly. What is the origin of the force that causes you to stop? Estimate the maximum rate of deceleration of a person running at top speed to come to rest.
September 11, 2009 by perry

physics
Q.1.Find the total mechanical energy in one time period? my sir says that it is (1/2)mw^2A^2 but according to me it should be 1/4mw^2A^2.How? Q.2.The total mechnical energy of a spring mass system in SHM is E = (1/2)mw^2A^2.Suppose the oscillating particle is replaced by ...
December 25, 2009 by anonymous

physics
If we are running on a threadmill with a speed such that I appear stationary and throw a ball, will the ball go further as compared to one who throws the ball while he is standing stationary. The concern is that though I appear stationary while I am running on a threadmill, I ...
February 18, 2011 by HK

maths
a survey of the local country western radio station produced the following data: 12 songs about a truck driver who is in love while in prison. 13 about a prisoner in love. 28 about a person in love. 18 about a truck driver in love
May 28, 2013 by Anonymous

Physics URGENT!!!
A 75.0 kg fullback running east with a speed of 6.00 m/s is tackled by a 82.0 kg opponent running north with a speed of 5.00 m/s. (a) Calculate the velocity of the players immediately after the tackle. (b)Calculate the direction of the players immediately after the tackle.(c)...
October 17, 2012 by Megan

English
1. While he was based on the sketches, Degas painted in his studio. 2. While he was walking on the street, he met a friend of his. 3. While he was driving, he sometimes smoked. 4. While he was chatting, he drank coffee from time to time. (What about the sentences using 'while...
August 31, 2010 by rfvv

MAth
help me please Many people are interested in losing weight through exercise. An important fact to consider is that a person needs to burn off 3,500 calories more than he or she takes in to lose 1 pound, according to the American Dietetic Association. The following table shows ...
July 2, 2008 by dawn

math questions
Please help me to resolve that sevent questions.Many people are interested in losing weight through exercise. An important fact to consider is that a person needs to burn off 3,500 calories more than he or she takes in to lose 1 pound, according to the American Dietetic ...
April 1, 2007 by carmen

Math Rates/proportions
I have two questions that are based on the following chart: Activity Cal/h Bicycling 6mi/h 240 Bicycling 12 mi/h 410 Cross country sking 700 Jogging 5 1/2 mi/h 740 Jumping rope 650 Running 10 mi/h 1,280 Swimming 25 yd/min 275 Swimming 50 yd/min 500 Tennis (singles) 400 Walking...
May 16, 2008 by Mary Mac

physical science!!!!!!!!
1. Alex pulls on the handle of a claw hammer with a force of 15 N. If the hammer has a mechanical advantage of 5.2, how much force is exerted on a nail in the claw? 2. While rowing in a race, John pulls the handle of an oar 0.08 m on each stroke. If the oar has a mechanical ...
January 22, 2009 by Ben

physics
1. The efficiency of a squeaky pulley system is 73 percent. The pulleys are used to raise a mass to a certain height. What force is exerted on the machine if a rope is pulled 18.0 m in order to raise a 58 kg mass a height of 3.0 m? Answer: 13.24 N? A person lifts a 950 N box ...
January 17, 2007 by anonymous

social studies
I need to know about confidentiality of a person living with H.I.V.I would like to know if u know a person that is living with this virus can u tell others about this person.Is their any law that prohibits me of this
February 26, 2009 by mark

math
Please help me to resolve that sevent questions.Many people are interested in losing weight through exercise. An important fact to consider is that a person needs to burn off 3,500 calories more than he or she takes in to lose 1 pound, according to the American Dietetic ...
April 1, 2007 by carmen

English
Tell what person, what type, and how you know. Mr. Morton knew the students were running out of time, but he felt that he needed to give an example of the activity, so he did. One of his students raised his hand. "Yes?" Mr. Morton asked. "I know I'm going to have problems with...
April 7, 2014 by Anonymous

physics **
When people sleep, their metabolic rate is about 2.6 10-4 C/(s·kg). How many Calories does a 69 kg person metabolize while sleeping 9.0 hours? ? Cal
December 4, 2008 by kelsey

economics
Does anyone have an estimation of about how much it costs to feed one person in one day? Thanks in advance. What are you feeding this person? Is this a 100-pound or a 200-pound person? Is this a vegetarian? Are you asking about minimal nutrition needs? Or asking about maximum ...
October 31, 2006 by Damien

physics
You always carry 3 wristwatches. One of them is synchronized with your labs atomic clock. Another is running low on battery and is 3 minutes behind, while the third watch is running 6 minutes fast. All were set to the same time when purchased. List the comparative angular ...
May 2, 2014 by Michelle

math
Many people are interested in losing weight through exercise. An important fact to consider is that a person needs to burn off 3,500 calories more than he or she takes in to lose 1 pound, according to the American Dietetic Association. The following table shows the number of ...
September 26, 2009 by p

MATH
Many people are interested in losing weight through exercise. An important fact to consider is that a person needs to burn off 3,500 calories more than he or she takes in to lose 1 pound, according to the American Dietetic Association. The following table shows the number of ...
September 26, 2009 by P

English
I am writing a magazine article for a class. I have looked up how to cite sources and still don't quite understand. I am using Associated Press (AP Style). I am writing about a famous person. I have read a lot about this person, but I can't interview this person, so my article...
November 5, 2009 by Suzette

science
sorry i put my question in the wrong place. ok my question is can you tell me if i did this correctly. my experiment was about how can you tell if the person is lying by his body language. will my independent variable be when i interview a person on a dim light while i ...
May 10, 2009 by nik

science
sorry i put my question in the wrong place. ok my question is can you tell me if i did this correctly. my experiment was about how can you tell if the person is lying by his body language. will my independent variable be when i interview a person on a dim light while i ...
May 10, 2009 by nik

Physics
How will mechanical energy affect different points of oscillation on a vertical spring? Well i know that mechanical energy is PE and KE...So when the spring is compressed the mechanical energy will equal the PE and when extended or stretched it will equal KE. Does that answer ...
June 23, 2011 by Janice

PHYSICS
a 50 kg person running to the east at 8.5 m/s jumps into a 100 kg initially at rest. A)find the velocity of the wagon and person together as they move away.B) If they coast 30 m before coming to a stop, find the average force of the friction that slows them down.
October 12, 2011 by ED

physics
a person 0f mass m = 60 kg walks along the radius from the periphery to the center of a circular platform of moment of inertia= 200kgm square and radius r = 3m. the disk is a rotating frictionless with angular velocity= 0.3 rad\s.find the angular velocity of the system when ...
May 1, 2012 by John

mechanical/eginineering
when a compound gear cluster is created how is the mechanical advantage calculated
April 29, 2013 by sean

gemma
re s103 please could you help me on that question about methonal please please help im running out of time What question? Do you mean methanol? Please post your questions with the subject appropriately labeled, and not addressed to one person.
March 13, 2007 by bex

Physics
A hitter hits a baseball into the air. The shortstop, who was initially 33.5 meters away, begins running directly away from home plate at 7 m/s at the moment that the ball was hit and catches the ball, while still running, at the same height from which it was hit, 3.2 seconds ...
January 17, 2008 by courtney

Science 8R - help (please read!!!)
Homework - Pick 4 out of the 6 forms (types) of energy and gives an example of each from your house. Types/Forms of Energy 1. Mechanical Energy 2. Electrical Energy 3. Electromagnetic Energy 4. Heat Energy 5. Chemical Energy 6. Nuclear Energy I'm picking heat and mechanical, ...
November 26, 2012 by Laruen

social studies
a person who is running away is a
September 30, 2009 by ali

Math
How do you weight probabilities to add up to 1? Example: Chance of rain .25 Chance of person wearing purple hat .1 Chance of person wearing red hat .05 Chance of person wearing black hat .2 Chance of person wearing yellow hat .1 Chance of person wearing white hat .3 So, You ...
June 17, 2013 by Karen

physics
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.38 m/s. The car is a distance d away. The bear is 25.4 m behind the tourist and running at 5.88 m/s. The tourist reaches the car safely. What is the maximum possible value for ...
December 11, 2008 by Please help!

Physics
A 60.5-kg person, running horizontally with a velocity of +3.76 m/s, jumps onto a 10.4-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. m/s (b) The sled and person coast 30...
October 24, 2010 by Xavier

social studies
in slavery a person who is running away is a
April 7, 2008 by quinten

physics
A skydiver jumps out of a plane. Does the mechanical energy of the jumper change while she is falling? Ignore the effects of air resistance.
March 7, 2011 by kasey guilanski

math check please
would some please check this for me. An important fact to consider is that a person needs to burn off 3,500 calories to lose 1 pound. The following table shows the number of calories burned per hour (cal/h) for a variety of activities, where the figures are based on a 150-...
January 8, 2007 by tony

chemistry
A 43 kg person drinks 490 g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 16% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in ascending is given by ...
September 26, 2008 by jamie

chemistry
A 51 kg person drinks 330. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 18% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in ascending is given by ...
September 18, 2011 by Ellie

chemistry
A 51 kg person drinks 270. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 15% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in ascending is given by ...
September 19, 2011 by Anonymous

science
A 49 kg person drinks 270. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 16% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in ascending is given by...
September 14, 2012 by Alyssa

physics
When people sleep, their metabolic rate is about 2.6 times 10^-4/(s*kg). How many Calories does a 75 -kg person metabolize while getting a good night's sleep of 8.0 hr?
May 2, 2010 by ashley

physics
You’re standing outside on a windless day when raindrops begin to fall straight down. You run for shelter at a speed of 5.3 , and you notice while you’re running that the raindrops appear to be falling at an angle of about 30 from the vertical. What’s the vertical speed of the...
October 12, 2011 by jes dores

physics
You’re standing outside on a windless day when raindrops begin to fall straight down. You run for shelter at a speed of 5.2 , and you notice while you’re running that the raindrops appear to be falling at an angle of about 30 from the vertical.What’s the vertical speed of the ...
October 19, 2012 by Anonymous

physics
You’re standing outside on a windless day when raindrops begin to fall straight down. You run for shelter at a speed of 5.3 m/s , and you notice while you’re running that the raindrops appear to be falling at an angle of about 30 degrees from the vertical. What’s the vertical ...
October 12, 2011 by jes dores

physics
A person jumps off a diving board 4.6 m above the water's surface into a deep pool. The person's downward motion stops 1.6 m below the surface of the water. Estimate the average deceleration (magnitude) of the person while under the water.
January 9, 2012 by Anonymous

physics
Two runners approaching each other on a straight track have constant speeds as shown, while they are 100m apart. How long will it take for the runners to meet if they maintain their respective speeds? one runner is running 4.5m/s while the other is 3.5m/s
October 28, 2010 by Adam

physics
When people sleep, their metabolic rate is about 2.6*10^4 C/(s-kg). How many calories does a 25kg person metabolize while getting a good nights sleep of 8 hours?
February 2, 2010 by Alex

physics
A 58.4-kg person, running horizontally with a velocity of +3.84 m/s, jumps onto a 10.7-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (Indicate the direction with the ...
October 22, 2012 by Lindsay

physical Science
Two people who weigh the same climb a flight of stairs. The first person climbs the stairs in 30 s, while the second person climbs them in 40s. Which person does more work? Which uses more power?
February 10, 2008 by Rachel

physics
In a scene in an action movie a person is being chased across a roof top. To escape, the person runs off the edge of the building and falls to the roof of a nearby shorter building. The tall building is 50m high, the short building is 40m high and there is a 5m gap in-between ...
April 7, 2011 by H.T

9th grade
Mr. Mist’s ramp broke so he tried to lift the his 150 Newton box of ungraded papers with a pulley system. Mr. Mist had to pull the rope in his system 3 meters. The papers were lifted into his car by the pulley system which lifted the box 1.5 meters, while Mr. Mist only used 85...
November 14, 2009 by Kevin

maths
Ravi bought x toys for 27$ and 3 mechanical pencils for x$.Given that the total cost of a toy and a mechanical pencil is 6$,write a quadratic equation in terms of x.
January 23, 2014 by mandy

statistics
what method gathering data may be best use for the following situations. 1.study about culture minorities. 2.study about pre-marital sex among college students and the respondents are friends or classmates. 3.the subject of study is patients in comatose conditions. 4.the study...
January 8, 2009 by

Physics
A person, standing on a vertical cliff a height h above a lake, wants to jump into the lake but notices a rock just at the surface level with its furthest edge a distance s from the bottom of the cliff. The person realizes that with a running start it will be possible to just ...
September 22, 2013 by ss01

English8
Before running, Jim always stretches. Is the gerund phrase before running or just running?
May 15, 2014 by Mary

chemistry
a resting person requires 14.5 L of O2 per hour to maintain metabolic activities. Such a person breathes in 0.50 L of air at approximately 20 degrees C with each breath. The inhaled air is 20.9%O2 while the exhaled air is 16.3% O2. (a) how many breaths per minute does a ...
November 19, 2009 by Joe

Grammar (Writeacher)
Revise the sentences below in which "who" or "whom" is used incorrectly. Then, indicate how "who" or "whom" is used in each sentence. 1. To play Kick the Can, the group must make a decision about whom will be counting. 2. Everyone else must hide from the person who is counting...
May 15, 2013 by Anonymous

Physics
Staging in mechanical equilibrium. The person in the middle weighs 215 N, and the tensions in each rope are 200 N. What is the weight of the staging?
June 10, 2013 by Jim

physics please help
How many grams of carbohydrate does a person of mass 75 kg need to metabolize to climb five flights of stairs (15 m height increase)? Each gram of carbohydrate provides 17.6 kJ of energy. Assume 10.0% efficiency—that is, 10.0% of the available chemical energy in the ...
June 11, 2012 by Nasir

journal article about running
i need to find a peer reviewed journal article pertaining to my chosen behavior modification project, which is to start running regularly. the article should be at least 3 pages in length and must include empirical research.
February 26, 2009 by Jenna

physics
a 900 N running back moving at 2.0 m/s is stoppped in 0.70 seconds when hit by a lineback. What average foarce did the linebacker exert on the running back? How much did the running back's momentum change?
February 3, 2011 by Nabil

Physics - thermal mechanical
During a workout, a person repeatedly lifts a 13 lb barbell through a distance of 1.5 ft. How many "reps" of this lift are required to burn off 100 Cal?
April 29, 2011 by Erica L

physics
A person going for a morning jog on the deck of a cruise ship is running toward the bow (front) of the ship at 2.2 while the ship is moving ahead at 6.8 . 1. What is the velocity of the jogger relative to the water? 2. Later, the jogger is moving toward the stern (rear) of the...
January 30, 2011 by Tess

math
it is estimated that in an average lifetime a person watches about 105,000 hours of TV. at this rate, about how many hours per day does a person watch TV?
June 6, 2012 by Celest

ihstory
During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Union Party running William Lemke. B. Liberty League running Father Coughlin. C. Union Party running Gerald K. Smith. D. Liberty League running ...
March 25, 2013 by sergey

history
During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Union Party running William Lemke. B. Liberty League running Father Coughlin. C. Union Party running Gerald K. Smith. D. Liberty League running ...
March 25, 2013 by sergey

history
During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Union Party running Gerald K. Smith. B. Liberty League running Father Coughlin. C. Union Party running William Lemke. D. Liberty League running ...
July 9, 2013 by tesha

stats
write a brief paragraph addressing the question. Which is more likely, that a person is killed by lightning, or that a person is killed by lightning while playing golf in a thunderstorm? I believe it would be while playing golf due to holding the metal golf club, acting as a ...
October 14, 2009 by CM

Phsyics Plz Help
How many grams of carbohydrate does a person of mass 75 kg need to metabolize to climb five flights of stairs (15 m height increase)? Each gram of carbohydrate provides 17.6 kJ of energy. Assume 10.0% efficiency—that is, 10.0% of the available chemical energy in the ...
June 11, 2012 by Nasir

Social Studies
During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Liberty League running Alfred M. Landon. B. Union Party running William Lemke. C. Liberty League running Father Coughlin. D. Union Party running ...
June 1, 2012 by Abby

Social Studies
During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Liberty League running Alfred M. Landon. B. Union Party running William Lemke. C. Liberty League running Father Coughlin. D. Union Party running ...
June 1, 2012 by Abby

Social Studies
During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Union Party running William Lemke. B. Liberty League running Alfred M. Landon. C. Liberty League running Father Coughlin. D. Union Party running ...
August 15, 2012 by Sara

physics
A ball is thrown upward from the top of a 40.0 m tall building. The ball's initial speed is 12.0 m/s. At the same instant, a person is running on the ground at a distance of 31.0 m from the building. What must be the average speed of the person if he is to catch the ball at ...
September 17, 2009 by sandhu

Physics
A ball is thrown upward from the top of a 50.0 m tall building. The ball's initial speed is 12.0 m/s. At the same instant, a person is running on the ground at a distance of 44.0 m from the building. What must be the average speed of the person if he is to catch the ball at ...
February 5, 2012 by Kelly

physic
A ball is thrown upward from the top of a 24.4 m tall building. The ball's initial speed is 12 m/s. At the same instant, a person is running on the ground at a distance of 31.4 m from the building. What must be the average speed of the person if he is to catch the ball at the ...
August 29, 2012 by Anonymous

Physics
A ball is thrown upward from the top of a 24.6 m tall building. The ball's initial speed is 12 m/s. At the same instant, a person is running on the ground at a distance of 31.2 m from the building. What must be the average speed of the person if he is to catch the ball at the ...
September 23, 2012 by Jenn

Business Communications
When someone complains about a problem, is it a good idea to quickly suggest a solution? A. Yes, because a quick suggestion show you think quickly. B. Yes, because offering a solution shows that you care about the other person. C. No, because the other person may not be ready ...
August 18, 2010 by Rain Misoa

Math
1.If a person jogs at a rate of 5 1/2mi/h for 3 1/2 h in a week, how many calories do they burn? 2. If a person runs in place for 15 minutes, how many calories will be burned? 3. If a person cross-country skis for35minutes, how many calories will be burned? 4. How many hours ...
November 7, 2009 by Anonymous

physics
A ball is thrown upward from the top of a 24.4-m-tall building. The ball's initial speed is 12 m/s. At the same instant, a person is running on the ground at a distance of 30.2 m from the building. What must be the average speed of the person if he is to catch the ball at the ...
August 30, 2011 by mae

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