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April 17, 2014

Homework Help: Health: Physical Fitness

Recent Homework Questions About Physical Fitness

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physical science
Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why?
Sunday, March 3, 2013 at 2:36pm

physical science
Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why? this is the answer
Sunday, March 3, 2013 at 2:25pm

physical science
I was not wrong
Sunday, March 3, 2013 at 2:24pm

physical science
(V1/T1) = (V2/T2) Remember T must be in kelvin.
Sunday, March 3, 2013 at 2:15pm

physical science
As Ms. Sue notes, you need to say this in your own words.
Sunday, March 3, 2013 at 2:14pm

physical science
See your other post.
Sunday, March 3, 2013 at 2:13pm

physical science
P1V1 = P2V2
Sunday, March 3, 2013 at 2:13pm

physical science
I don't see how we can help you explain IN YOUR OWN WORDS.
Sunday, March 3, 2013 at 2:05pm

physical science
10. A balloon has a volume of 0.5 L at 20°C. What will the volume be if the balloon is heated to 150°C? Assume constant pressure and mass.
Sunday, March 3, 2013 at 2:03pm

physical science
3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. That is why climbers always bring oxygen tanks. If a climber carries a 12.0 liter tank with a pressure of 35,000 mm Hg, what volume will the gas occupy if it is released at the top of Mt. Everest?
Sunday, March 3, 2013 at 2:03pm

physical science
3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. That is why climbers always bring oxygen tanks. If a climber carries a 12.0 liter tank with a pressure of 35,000 mm Hg, what volume will the gas occupy if it is released at the top of Mt. Everest?
Sunday, March 3, 2013 at 2:03pm

physical science
1. Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why in your own words.
Sunday, March 3, 2013 at 2:02pm

Biology
Similarities: 1. Required for all living organisms. 2. Uses oxygen. Differences: 1. Breathing: takes in oxygen (expels carbon dioxide). Respiration: breaks down oxygen so cells can use it. 2. Breathing: physical process Respiration: chemical process
Saturday, March 2, 2013 at 6:30pm

physical science
Ammonia is a base so as you add drops of ammonia solution, the pH will increase.
Saturday, March 2, 2013 at 4:35pm

physical science
Hypothesize how the pH of white vinegar would change if an ammonia solution was added to it a drop at a time. White vinegar has a pH of 3.1
Saturday, March 2, 2013 at 4:33pm

physical
Check my answer to the same question, asked by "sam" yesterday. It is among the "Related Questions" below.
Saturday, March 2, 2013 at 5:25am

physical
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 ...
Saturday, March 2, 2013 at 3:28am

physical
When 1 g of gasoline is burned in an engine, about 48 kJ of heat is produced. How much mass is lost in the process? Do you think this mass change could directly measured
Saturday, March 2, 2013 at 2:48am

physical science
You wish to heat 30 kg of water from 60°C to 80°C. How many kcal of heat are necessary to do this? To how many kJ does this correspond?
Saturday, March 2, 2013 at 12:26am

Physical Science
thank you!
Friday, March 1, 2013 at 5:39pm

Physical Science
1B 2C 3A 4C
Friday, March 1, 2013 at 5:15pm

Physical Science
ok so i keep getting one wrong on a 4 question test and failing so can someone tell me what im getting wrong 1. What causes an electric current in a wire? A. Electric fields cause atoms to move in the wire. B. Electrons flow because of electrical attraction and repulsion. C. ...
Friday, March 1, 2013 at 5:03pm

world geo
Explain how Western Europe's physical geography affects its climate, settlement patterns, culture, and economy
Friday, March 1, 2013 at 10:02am

physical science
speed = distance/time = 97.5m/.181s = 538.67m/s The frequency does not matter.
Thursday, February 28, 2013 at 12:54pm

Physical Science
Halving the distance will increase the intensity (power per area) by a factor of four. Doubling the power while keeping the distance the same will only double the intensity.
Thursday, February 28, 2013 at 11:54am

Physical Science
what will have a greater effect on the intensity of a sound, doubling its power or halving its distance? Explain your answer.
Thursday, February 28, 2013 at 11:25am

physical science
You are at a concert and you are located 91.2-m from the speakers. The frequency belting from the speakers are 291-Hz, if it takes 0.230-sec for the sound to reach your location what is the sounds wavelength?
Thursday, February 28, 2013 at 9:37am

physical science
You are at a concert and you are located 95.9-m from the speakers. The frequency belting from the speakers are 257-Hz, if it takes 0.503-sec for the sound to reach your location what is the sounds wavelength?
Thursday, February 28, 2013 at 9:36am

physical science
You are at a concert and you are located 97.5-m from the speakers. The frequency belting from the speakers are 216-Hz, if it takes 0.181-sec for the sound to reach your location what is the speed of sound in this facility?
Thursday, February 28, 2013 at 9:35am

Physical Science
Find the change in the force of gravity between two planets when their masses remain the same but the distance between them is increased by 10 times.
Wednesday, February 27, 2013 at 11:19pm

Grammatical Corrections in my Essay...?
Can you help me check my essay, to see if their are any grammer mistakes or other mistakes. Every toddler has their own unique qualities, strengths and needs. Antonio Becerra is a wonderful and intelligent three year old boy; he was born on February 16, 2008. Their so much to ...
Wednesday, February 27, 2013 at 4:09pm

Physical Science
recks the sled
Tuesday, February 26, 2013 at 7:12pm

physical
A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic energy does the 7.2-kg dog need to jump this high? (The acceleration due to gravity is 9.8 m/s².)
Tuesday, February 26, 2013 at 7:01pm

physical
what are the limitations on practical interstellar travel for both manned and unmanned craft and what are some proposed ways to deal with them in the future?
Tuesday, February 26, 2013 at 6:05pm

physical
A computer is reading data from a rotating CD-ROM. At a point that is 0.036 m from the center of the disc, the centripetal acceleration is 120 m/s2. What is the centripetal acceleration at a point that is 0.056 m from the center of the disc?
Sunday, February 24, 2013 at 1:03am

science
F2: Cl2 Br2 I2 a. Because all of these elements are in the same group; i.e., Group VII. b. Elements in the same group have similar chemical and physical properties because their electronic structure is similar.
Thursday, February 21, 2013 at 2:05pm

Physical Science
Fnet = ma a = Fnet/m
Thursday, February 21, 2013 at 12:58am

Physical Science
Fnet(t) = m(t)a. YOu know the acceleration its a basic math question from here. a=7m/s/s m(t)=2100kg m(t)*a = 14,700N is the Force on the Truck
Thursday, February 21, 2013 at 12:57am

Physical Science
A car and a truck are on the highway. Both need to accelerate at 7 m/s2 in order to avoid an accident. a. Find the force acting on the car, which has a mass of 408 k b. Find the force acting on the truck, which has a mass of 2,100 kg.
Wednesday, February 20, 2013 at 11:11pm

Physical Science
A force of 20 N is applied to a box of books with a mass of 4kg. Find the acceleration of the box of books.
Wednesday, February 20, 2013 at 11:03pm

Data Mangement- Math
The diagram represents the computer network between the department offices in a high school. The network can send data from one computer to another using any number of intermediate connections, but the data can pass through each connection only once. How many routes are there ...
Wednesday, February 20, 2013 at 7:46pm

Physical science
If a ball is thrown straight up at a speed of 24.7 m/s, for how long of a time will it continue to rise before it starts to fall back down?
Tuesday, February 19, 2013 at 10:18pm

Physical Science- Balance Equations
Is your problem with balancing or is it with naming the products? HCl(aq) + NaHCO3(aq) ==> H2O(l) + CO2(g) + NaCl(aq) HBr(aq) + NH3(aq) ==> NH4Br(aq) LiHCO3(aq) + HI(aq) ==> LiI(aq) + H2O(l) + CO2(g)
Monday, February 18, 2013 at 9:43pm

Physical Science- Balance Equations
Hi! Can someone please balance these equations, please?! I'm having major trouble! Thank you! HCl (aq) + NaHCO3 (aq) ¨ HBr (aq) + NH3 (aq) ¨ LiHCO3 (aq) + HI (aq) ¨
Monday, February 18, 2013 at 7:10pm

psychology
Particular factors encourage people to be drawn into liking one another. In this context, the reciprocity of liking effect is primarily associated with A. physical attractiveness. B. propinquity. C. similarity. D. exposure.
Monday, February 18, 2013 at 4:38pm

Basketball Current Event
Dear Tutor, I have to do a current event for Physical Education on basketball. My problem is that I don't know anything about basketball and my coach wants it to be on a famous basketball team that has recently played. Can you help me find an article. I am really dumb when...
Monday, February 18, 2013 at 2:57pm

Basketball Current Event
Dear Tutor, I have to do a current event for Physical Education on basketball. My problem is that I don't know anything about basketball and my coach wants it to be on a famous basketball team that has recently played. Can you help me find an article. I am really dumb when...
Monday, February 18, 2013 at 1:54pm

algebra
a physical education teacher was getting ready for gym class one day . he measured the circumference of the basketball to be 9 inches when it is filled with air . he then went on to pose the following question to his classes : use 3.14 A ) how much material is needed to make ...
Monday, February 18, 2013 at 12:13pm

Physical science
Show me the drawings of F1=3N,F2=1N all in the positive x-direction,F3=2N in the negative x-direction,F4=3N in the positive y-direction
Sunday, February 17, 2013 at 7:19pm

Physical Science
You have to know the friction force involved. Was the chair at constant velocity, or accelerating?
Sunday, February 17, 2013 at 5:58pm

Physical Science
A force of 60N used to push a chair across a room does 300J of work in half a minute. How far does a chair move?
Sunday, February 17, 2013 at 5:37pm

physical science
a scientist found a fossilized bison. using Carbon-14 dating, she found that the fossil was about 45,840 years old. Carbon-14 has a half-life of 5730 years. how many half-lives have passed?
Sunday, February 17, 2013 at 4:59pm

chemestry
Explain the physical significance of van der waals,parameters ?
Sunday, February 17, 2013 at 9:50am

Physical science
The same mirror length is required: 0.9 m , which is half his height. The mirror is always half way between the man and his image.
Sunday, February 17, 2013 at 6:46am

physical science
sodium-24 has a half life of 15 hours,how much of a 50 gram sample will be left after 60 hours
Saturday, February 16, 2013 at 8:53pm

Intro to Physical Science
Two 2.2 kg physical science textbooks on a bookshelf are 0.29 m apart. What is the magnitude of the gravitational attraction between the books?
Saturday, February 16, 2013 at 7:50pm

physical science
500*'(1/2)^(21/5.26) grams
Saturday, February 16, 2013 at 4:01pm

physical science
cobalt-60 has a half-life of 5.26 years, how much of a 500 gram sample will be left after 21 years
Saturday, February 16, 2013 at 3:53pm

Speech 09
I'm posting this question again I really need to know if i am right or wrong please help Place the correct letter next to the item that matches it. A. Physical Barrier B. Mental Barrier C. Cultural Barrier D. Empathic Listening E. Listening for Information F. Critical ...
Thursday, February 14, 2013 at 7:36pm

Education/Technology
To get instant feedback for assessment, such as physical education fitness, a music lab activity, or reading competency, students have been shown how to use A) scanners or punch cards. B) handheld computers or PDAs. C) desktop or laptop computers. D) webcams or digital cameras...
Thursday, February 14, 2013 at 6:21pm

physical sciene
Two 2.2 kg physical science textbooks on a bookshelf are 0.15 m apart. What is the magnitude of the gravitational attraction between the books?
Thursday, February 14, 2013 at 1:14pm

Speech
Listening to your friend sincerely as they tell you about their day ( empathic listening)? Not anderstanding because of accent ( cultural barrier)? Take notes in class and studying then so you can paraphrase the information for a test. (Academic listening) A me Janice ...
Wednesday, February 13, 2013 at 11:40pm

physical
Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 84 kg, and the mass of the woman is 68 kg. The woman pushes on the man with a force of 50 N due east. Determine the acceleration (magnitude ...
Wednesday, February 13, 2013 at 12:10pm

Physical Science
moles=50/molmassCH4 molecues=moles*avagnumber
Tuesday, February 12, 2013 at 9:55pm

Physical Science
How many CH4 molecules are contained in a 50gram sample of CH4 gas?
Tuesday, February 12, 2013 at 9:34pm

physical sciences
Wouldn't depend on the height?
Tuesday, February 12, 2013 at 9:18am

physical sciences
A child throws a coin vertically downwards from a window of high building with an initial velocity of 15 m/s.Ignore the effect of air friction. Calculate vhow lonfg the coin falls
Tuesday, February 12, 2013 at 9:08am

Physical Science Help!
2NO + O2 ---?? NO2 I started this one for you.. What goes in front of the NO2? Second equation On the left you have You have 4 N's 4 H's 2H's or 6 H's 1 Cl 1 Ca 2 O On the right you have 1 Ca 2 Cl 1 N 3 H and 2 H = 5 H 1 O Start by trying to balance the Cl.
Monday, February 11, 2013 at 7:22pm

Physical Science Help!
Can someone please help me balance these equations? Thank you for your time!! 1. NO + O2 ¨ NO2 2. NH4Cl + Ca(OH)2 ¨ CaCl2 + NH3 + H2O
Monday, February 11, 2013 at 5:51pm

intro to physical science
the specific heat of granite is 0.80 KJ/kg . c. I f 1.6 MJ of heat are added to a 100-kg granite statue of James Precott Joule that is originally at 18 C, what is the finale temperature of the statue
Monday, February 11, 2013 at 10:30am

intro to physical science
Use equation: T(c)= 5/9(T(F)-32*) So you don't know the Celsius Temp So all you need to do is fill in the equation.... T(c)= 5/9(160-32) 160-32=128 5/9(128)=71.1111
Monday, February 11, 2013 at 10:30am

intro to physical science
what is the Celsius equival of a temperature of 160 F
Monday, February 11, 2013 at 10:25am

Precalculus (Please Help!!??)
(h) since x^3 is always increasing, there are no two values of x that give the same y. So, x^3 has an inverse (b) not so for x^2, since there are two values of x for each y. If you restrict the radius to positive values, though, then x^2 has an inverse. Makes sense, since a ...
Monday, February 11, 2013 at 5:05am

physical sciences
35
Sunday, February 10, 2013 at 1:29pm

physical science
This allows for thermal expansion in hot weather.
Sunday, February 10, 2013 at 1:07pm

physical science
You have not asked a question. You have stated an observation. The grammar is also messed up.
Sunday, February 10, 2013 at 1:06pm

physical science
a metal power/laundry line which hang droop on a very warm day
Sunday, February 10, 2013 at 1:03pm

physical science
the need for gaps in railway lines
Sunday, February 10, 2013 at 12:58pm

Physical Science
a. Increase NO2 b. Increase teh N2O4 c. reduce No2 d. increase N2O4
Saturday, February 9, 2013 at 2:05pm

Chem
Elements with similar properties Answer occupy the same period of the periodic table have similar electron configurations have the same number of neutrons in their nuclei exist in the same physical state (solid, liquid, or gas)
Saturday, February 9, 2013 at 12:46pm

physical sciene
v=gt=9.8•3.8=…
Saturday, February 9, 2013 at 6:29am

physical sciene
Neglecting air resistance, how fast is the object traveling when it strikes the gounnd at the end of 3.8s?
Saturday, February 9, 2013 at 12:16am

marketing
Develop and describe the packaging necessary for your product or service in a one- to two-page paper. Your description must include the market research done (or necessary) to arrive at the packaging. Identify the product concepts you used in determining the packaging. How does...
Friday, February 8, 2013 at 4:07pm

Physical Science
Predict how each of the following changes will affect the following reaction involving gaseous reactants and products: 2NO2 = N2O4 + heat a. the temperature is increased. b. the pressure is increase. c. N2O4 is removed from the equilibrium mixtur. d. NO2 is added to the ...
Friday, February 8, 2013 at 2:20am

Physical Science
Predict the shift of equilibrium for each of the following conditions in the following reaction involving gaseous reactants and products: N2 + 3H2 = 2NH3 + heat A. the pressure is increased. b. the temperature is decreased.
Friday, February 8, 2013 at 2:16am

Physical Science
Predict the shift of equilibrium for each of the following conditions in the following reaction involving gaseous reactants and products: N2 + 3H2 = 2NH3 + heat
Friday, February 8, 2013 at 2:15am

physical
Prove that the SI unit of gravitatinal feild strength,N.kg to the power of minise 1,is equivalent tothe SI unit of acceleration due to gravity,m.s-2.
Thursday, February 7, 2013 at 3:29pm

physical
The mass of the earth is 5,96 multipy by 10 to the power of 2) kg and that of the moon 7,35 multiply by 10 to the power of 22kg.If the distance between their centres is 3,84 multiply by 10 to the power of 8m,calculate the mass of each ball.
Thursday, February 7, 2013 at 3:26pm

health
hat is physical stress? A. A physical reaction of the body to various triggers B. A physical reaction of the mind to various triggers C. A physical reaction of the soul to various triggers D. A physical reaction to the heart to various triggers i think its a
Thursday, February 7, 2013 at 3:25pm

physical
The mass of the earth is 5,96 multipy by 10 to the power of 2) kg and that of the moon 7,35 multiply by 10 to the power of 22kg.If the distance between their centres is 3,84 multiply by 10 to the power of 8m,calculate the mass of each ball.
Thursday, February 7, 2013 at 3:24pm

physical
A mass of 1kg on the earth is attracted with a force of 9,8 N.The raduis ofthe earth is 6,38 X 10m,calculate the mass of the earth.
Thursday, February 7, 2013 at 3:06pm

Just some LA q's, Ms.Sue please
1. When you summarize an informational article, you should (1 point) leave out minor details. use the author's words, including direct quotations. leave out important details. include as much information as possible. 2. Why might a scientist choose to categorize scientific...
Thursday, February 7, 2013 at 2:47pm

chemistry
a yes b yes c either d no c can be either. If it heats up because you built a fire under it that is a physical change. If it heats up because of the experiment being conducted it is a chemical change.
Thursday, February 7, 2013 at 11:57am

CHEMISTRY
If it is an element it will be listed on the periodic table. If it is a mixture you will be able to separate it by physical means. It is isn't an element and it isn't a mixture, it must be a compound.
Wednesday, February 6, 2013 at 9:24pm

Physical Geography of Latin America
What are your choices?
Wednesday, February 6, 2013 at 6:56pm

Physical Geography of Latin America
What has the most natural resources, including rain forests and minerals.
Wednesday, February 6, 2013 at 6:52pm

Physical Ed
11. Disagreements are a normal part of life. (1 point) True False 12. Talking to a trustworthy adult is the best way to stop sexual abuse and get help. (1 point) True False 13. Some conflicts are made worse by peer negotiation. (1 point) True False 14. Feeling negatively about...
Wednesday, February 6, 2013 at 1:58pm

physical science
how do you solve? a swimmimg pool is exactly 20m long, 7m wide, and 2m deep. What is its volume in cubic feet to 3 significant figures?
Wednesday, February 6, 2013 at 9:53am

Physical Science
I studied this 2 years ago in college and am no back in school. I can't remember any of this stuff and I really need to figure it out. Please Help Me!! The Latent Heat of Vaporization for water is 540. cal/g. How much heat (in calories) must be added to 10.0 g of water at ...
Tuesday, February 5, 2013 at 10:05pm

Physical science
How much energy would be needed to warm 1.5 L of water from 0 °C to 25 °C? The specific heat capacity of water is 4186 J/kg/°C.
Tuesday, February 5, 2013 at 8:33pm

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