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November 28, 2014

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Recent Homework Questions About Physical Fitness

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physical science
A certain radioactive substance has a half-life of 1 hour. If you start with 1 gram of the material at noon, how much will be left at 3:00 P.M.? At 6:00 P.M.? At 10:00 P.M.?
Wednesday, November 2, 2011 at 10:08pm

physical science
a charge of + 2x10-7c is 10cm from a charge of -6x10-6c find magnitude and direction of force on each charge
Wednesday, November 2, 2011 at 2:47pm

Science
Examine the obvious environmental impacts as well as significant social and physical ramifications of urban sprawl. What is the relationship between landscape and psychological well being? After defining this relationship, discuss how the presence or absence of natural beauty ...
Wednesday, November 2, 2011 at 6:09am

Physical Science
Based on a data table of their preliminary observations, which is shown below, complete the final column entitled: “Number of Valence Electrons” and then answer the questions that follow. Element Name Symbol Group Number Alkalininium A 1 Earthium E 2 Redonkulinium R ...
Tuesday, November 1, 2011 at 7:39pm

chemistry
Using a coffee-cup calorimeter, it is found that when an ice cube with a mass of 24.6 g melts, 8.19 kJ of heat are absorbed. (a) Calculate the change in enthalpy per gram and per mole of water. (b) Write the thermochemical equation for this physical change. (c) What mass of ...
Tuesday, November 1, 2011 at 6:32pm

early childhood education
a childs ability to jump for distance is an example of a)agility b)flexibility c)explosive power d)reaction time i put b am i correct a child who has to struggle to climb into a chair is confronting an.......... hazard a)biological b)physical c)ergonomic d)environmental i put ...
Tuesday, November 1, 2011 at 4:51pm

Health
3. Which of the following is NOT a physical change both boys and girls experience during adolescence? a. facial acne b. growth spurts c. rinse in sex hormones d. deepening of voice C or D.. 4. For teens to communicate effectively with their parents, they should a. vent ...
Tuesday, November 1, 2011 at 4:05pm

Physical Sciene
A cannon is fired horizontally from a top of a 15-m platform. What is the cannon balls horizontal speed when it hits the ground 250 m downrange?
Tuesday, November 1, 2011 at 10:58am

Chem
With which of the following will the weak acid HCHO2 react? If a reaction occurs, write the balanced molecular equation. If no reaction occurs write the left half of the reaction and use "NR". Do not include physical states in your answers. KOH: NH3:
Tuesday, November 1, 2011 at 10:38am

Chemistry
Write equations for the dissociation of the following in water. Include physical states for all species. CaCl2 and (NH4)2SO4
Tuesday, November 1, 2011 at 10:34am

English
I forgot to include the following sentence. 1) Write a ten-line paragraph about you. describing your physical apperance and character. Then refer to the things you like and to a typical school day.
Monday, October 31, 2011 at 4:29pm

physical
A man swings his child in a circle of radius 0.75 m .If the mass of child is 25 kg and the child makes one revolution in 1.5 s,what are the magnitude and direction of the force that must be exerted by the man on the child?*assume that the child to be a point particle
Sunday, October 30, 2011 at 5:41am

physical
Discuss the pros and cons of the following statement: “ Egalitarian companies are more innovative•Identify three organizations that you perceive as being innovative. ◦Identify the innovation and its impact upon each organization.
Saturday, October 29, 2011 at 2:40pm

Greetings
I have a Agility ladder and I do what called fast feet all the way down explain this drill. Physical Education
Friday, October 28, 2011 at 10:20pm

chemistry
Ethanol and carbon dioxide have approximately the same molecular weight, yet carbon dioxide is a gas at STP and ethanol is a liquid. How do you account for this difference in physical property?
Friday, October 28, 2011 at 5:05pm

computer networking
You have been asked to help upgrade the LAN at a very successful CPA firm with five departments in one building and a total of 560 employees. Although the firm's employees understand accounting, they haven't spent much time improving their network. Currently, it runs ...
Friday, October 28, 2011 at 4:43pm

Psychology
It may be difficult to sooth a crying baby who needs to befed and changed with cuddling and toys. The strengthof the physical needs in this situation support: Would the answer be B- the incentive approach to motivation
Friday, October 28, 2011 at 3:36pm

Social Studies-Amrican History
British Taxes - The student will evaluate the cause and effect relationship of British tax policies concerning the colonies. In March 1765, the British parliament announced a stamp tax. Starting that November, American colonists would be charged taxes on multiple printed ...
Friday, October 28, 2011 at 9:16am

physical science
assume that a parcel of air is forced to rise up and over a 6000 foot high mountain. The intial temperature of the parcel at sea level is 76.5 F, and the lifting condensation level (lvl) of the parcel is 3000 feet. The DAR is 5.5 F/1000 and the SAR is 3.3 F/1000. Assume that ...
Friday, October 28, 2011 at 12:23am

physical
What is the reaction force to an action force of 750 N exerted by Earth on an orbiting communications satellite?
Thursday, October 27, 2011 at 10:04pm

Physical Science
Galaxy A is 600 million light years from earth. Galaxy B is moving away from the earth at a speed that is 80% as large as that of Galaxy A. How far from earth is Galaxy B? A. 750 million light years. B. 640 million light years. C. 540 million light years. D. 480 million light ...
Thursday, October 27, 2011 at 1:07pm

PSY Quiz
Who can help me to double check my Quiz ....please? Question 1 of 10 According to Freud, the psychosexual stage that occurs during the first year of life is called the ___________ stage. A. Latency B. Anal ->C. Oral D. Phallic Reset Selection Question 2 of 10 Davey is a ...
Thursday, October 27, 2011 at 12:06pm

Physical Science
When U238 decays into Pb206 via alpha and beta decay, what are the byproducts of the decay? A. 8 alpha particles and 6 beta rays. B. 8 alpha particles, 6 electrons, 6 neutrinos, and energy C. 16 alpha particles, 16 beta rays, and energy D. 16 deuterons and 6 electrons. PLEASE ...
Thursday, October 27, 2011 at 10:45am

Physical science
Why can't naturally occuring uranium be used in a nuclear power plant? A. Naturally occurring uranium decays too rapidly into thorium. B. The temperature of the uranium is too low. C. A sustainable chain reaction requires higher concentrations of U235 than naturally ...
Thursday, October 27, 2011 at 10:44am

Physical Science
What becomes of the electric energy provided in electrolysis? In what device is this energy transformation reversed?
Wednesday, October 26, 2011 at 10:44pm

Physical Science Concepts
1) the industrial revolution occurred at about the same time as the growth of the theory of electromagnetism. a)What were some of the causes of the industrial revolution? b)What technology and industry can be assciated with the emergence of the electromagnetic theory?
Wednesday, October 26, 2011 at 6:13pm

Physical Science Concepts
Atutomobile l-collecg stations a thin metal wire sticks up from the road and makes contract with cars before they reach the toil collector. What is the pupose of this wire?
Wednesday, October 26, 2011 at 6:05pm

physics
Note: Coal and oil are non-renewable re- sources. A friend says the energy of oil and coal is actually a form of solar energy. Is your friend correct, or mistaken? 1.Mistaken; the energy is actually nuclear. 2. Correct; these materials are the result of photosynthesis, a ...
Wednesday, October 26, 2011 at 5:41pm

Psychology
It may be difficult to sooth a crying baby who needs to be fed and changed with Cuddling and toys. The strength of the physical needs in this situation support: a.secondary drive approach theory b.the incentive approach to motivation c.Maslow’s hierarch of needs d.The ...
Wednesday, October 26, 2011 at 2:58pm

Physical Science
a 30 kg girl and a 25 kg boy face each other on a friction-free blades. The girl pushes the boy, who moves away at a speed of 1.0 m/s. The girls speed is __________m/s
Tuesday, October 25, 2011 at 8:14pm

Physical science
If you could produce a sample containing 2,400,000 free neutrons, what would it be 2658 seconds later? A) 300,000 neutrons, 2,100,000 protons, and 2,100,000 electrons. MY ANSWER B) 300,000 neutrons and 2,100,000 protons C) 300,000 neutrons, 2,100,000 protons, 2,100,000 ...
Tuesday, October 25, 2011 at 3:11pm

science
Listed below are six mixtures. Identify physical properties of the components that allow you to separate them. Then, explain the method you would use to separate the components. Mixture 1: Salt dissolved in water Physical Properties: Density Method of Separation: Use a spoon ...
Monday, October 24, 2011 at 9:11pm

EssayCHECK
Online Vs Traditional Dating Innovations and technology has brought about many changes in day to day human life. More recently, and with the advent of the internet, communication amongst people from all over the world has drastically increased to levels unimaginable to the ...
Monday, October 24, 2011 at 10:51am

soc313: implication of medical issues
Discuss psychosocial issues in Huntington's disease. Some of the issues may be from the following list. Use at least 3 of the following or 3 of your own, and provide a resource for your findings. Respond to at least one other student in an evaluative or informative manner...
Saturday, October 22, 2011 at 7:26pm

Physical education
Write down five challenges facing teaching in primary schools?
Friday, October 21, 2011 at 12:13pm

physical education
Write five challenges are facing teacher for physical education?
Friday, October 21, 2011 at 11:27am

physical chemistry
if 10 litres of a solution of na2co3 contains 21.2g of na2co3, what is its strength?
Thursday, October 20, 2011 at 4:37am

Physical Science
Under what circumstances would you expect the shared electron pair to be equal distances on the average from each of the atoms participating in a covalent bond?
Tuesday, October 18, 2011 at 2:05pm

Physical Education
Im just wondering, why isnt it an elective?
Monday, October 17, 2011 at 4:30pm

Physical Science
What kind(s) of particles make up (a) gaseous compound (b) liquid compound (c) solid compound?
Monday, October 17, 2011 at 2:34pm

Physical Science
Estimate the volume of an atom of iron 56Fe given atomic number: 26 A.) 8.6 x 10-24 cc B.) 1.2 x 10-23 cc C.) 2.4 x 1024 cc D.) 3.6 x 1024 cc
Monday, October 17, 2011 at 11:14am

Physical Science
A chemist is investigating an unknown gas. She observes that it combines with oxygen. It takes two liters of oxygen to fully react with one liter of the unknown gas, and that the resulting volume of gas is also two liters. What does she conclude? A.) The unknown gas is ...
Monday, October 17, 2011 at 10:28am

Physical Science
The physical properties of ice are different from the physical properties of dry ice (frozen carbon dioxide). But the physical properties of gaseous water vapor and the physical properties of gaseous carbon dioxide are the same. Why? A.) The valence electrons are more tightly ...
Monday, October 17, 2011 at 10:26am

physical science
The ionization energies of Li, Na, K, Rb, and Cs are respectively 5.4, 5.1, 4.3, 4.2, and 3.9 eV. All are in Group 1 of the periodic table. Explain the decrease in ionization energy with increasing atomic number in this group.
Monday, October 17, 2011 at 1:22am

physical science
Would you expect magnesium or calcium to be the more active metal? Explain your answer in terms of atomic structure.
Monday, October 17, 2011 at 1:21am

physical science
how do i find how long the steel is in a 156 kg coil of sheet steel that is .80 mm thick and 50 cm wide.
Sunday, October 16, 2011 at 6:31pm

physical
. On Earth the Mars rover had a weight of 9800 N. What will be its weight on mars where the acceleration due to gravity is 4 m/s
Sunday, October 16, 2011 at 6:24pm

physical
height=42m,speed=250m/s, how long will the object remain in air?
Saturday, October 15, 2011 at 7:52pm

physical
A ball is thrown from the window of a high-rise building with an initial velocity of 7.7 m/s at an angle of 34 deg. below the horizontal. The bill strikes the ground 4.2 seconds after being thrown. Find the height from which the ball was thrown.
Saturday, October 15, 2011 at 5:26pm

Physical Science
Why is the viscosity of a liquid important?
Saturday, October 15, 2011 at 2:52pm

Physical Science
what forward force must the ground apply to the foot of a 60.0 kg person to result in an acceleration of 1.00m/s^2
Friday, October 14, 2011 at 5:04pm

operating a car
It is important to make sure that any person selling you a car has : A.physical possession of the vehicle. B.informed the motor vehicles department of the intention to sell the vehicle. C.legal title to the vehicle. D.a good reputation for honesty. i got C
Thursday, October 13, 2011 at 4:40pm

Physical Science
What is an example of radioactive decay?
Thursday, October 13, 2011 at 1:35pm

Physical Science
A 43.0 g silver spoon at 22.3°C is placed in a cup of coffee at 90.0°C. The spoon absorbs heat from the coffee to reach a temperature of 89.0°C. If the silver spoon placed in the coffee causes it to cool 0.89°C, what is the mass of the coffee?
Wednesday, October 12, 2011 at 4:35pm

physics
( 1.) A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is not true?< (A) The passenger is in motion relative to the passer-by (B) The passer-by is stationery relative to the ...
Wednesday, October 12, 2011 at 11:51am

computers
TMA1PHY111 ( 1.) A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is not true?< (A) The passenger is in motion relative to the passer-by (B) The passer-by is stationery relative ...
Wednesday, October 12, 2011 at 11:49am

physical science
during a football game two players try to tackle another player.one player applies a force of 50.0 n to the east. a second player applies a force of 120.0 n to the north . what is the total applied force?and what is themagnitude and direction of the force
Tuesday, October 11, 2011 at 11:08am

College Organic Chem
1)what is the name of the common commercial chemical that is always obtained from the reaction of fats and strong bases such as NaOH and KaOH. 2)What is a physical property that you can tell the difference between glyceryl trimyristate abd myristic acid that is the same color ...
Monday, October 10, 2011 at 9:03pm

Physical Science
a.Calculate which one of the reactants will be used up if 20g of Fe is mixed with 10g of S and heated. b.How many grams of the other reactant were in excess?
Monday, October 10, 2011 at 6:58am

Physical Science
Find the work done in pushing a 120 kg box for 5 meters across the floor. W=F * D (F=m*g) a. 600.0 J b. 5,880.0 J c. 5,008.8 J d. 601.5 J
Sunday, October 9, 2011 at 11:49pm

Physical Science
Find the work done in pushing a 120 kg box for 5 meters across the floor. W=F * D (F=m*g) a. 600.0 J b. 5,880.0 J c. 5,008.8 J d. 601.5 J
Sunday, October 9, 2011 at 11:17pm

Physical Science
The ___________ of an element have atoms whose nuclei differ in their numbers of neutrons.
Sunday, October 9, 2011 at 11:13pm

physical
What is the traverling ball in Hanbball
Sunday, October 9, 2011 at 11:34am

Physical Science
What kind of experiment might you use to distinguish between a gamma ray of wavelength 10^-11m and an electron whose de Brogile wavenlength is also 10^-11m?
Saturday, October 8, 2011 at 3:07pm

Physical Science
A certain metal surface emits electrons when light is shone on it. (a)How can the number of electrons per second be increased? (b) How can the energies of the electrons be increased?
Saturday, October 8, 2011 at 2:19pm

physical education
in what all tips does physical education help?
Saturday, October 8, 2011 at 10:05am

physical
What is the wavelenght if the distance covered by a wave in 14 succesive trough is 25cm
Saturday, October 8, 2011 at 7:03am

physical
What is the wavelenght if the distance covered by a wave in 14 succesive trough is 25cm
Saturday, October 8, 2011 at 6:57am

internet
Information systems security? For the scenarios that follow,identify the data that would need to be protected.Recommend how you would implement one or more of the following controls for the given scenario and justify your recommendation. 1.Administrative controls 2.Logical and...
Thursday, October 6, 2011 at 10:47pm

English help
Which details can be considered primary support for the main primary suppor for the main idea statement. Many dramatic physical changes occur during adolescence between the ages of 13 and 15 a.voices changes in boys begin to occur at 13 or 14 b.facial proportions may change ...
Thursday, October 6, 2011 at 7:27pm

Physical science
A satellite that is 4175 miles from the center of the earth, orbits with a period of 90 minutes. What is its centripetal acceleration?
Thursday, October 6, 2011 at 2:44pm

physical science
A satellite that is 4175 miles from the center of the earth, orbits with a period of 90 minutes. What is its centripetal acceleration?
Thursday, October 6, 2011 at 2:40pm

Physical Science
What is the frequency of electromagnetic radiation that has the same wavelength as the sound waves of middle C on a piano? A) 1.1 x108 Hz B) 2.2 x108 Hz C) 4.4 x108 Hz (my answer am I correct) D) 6.6 x108 Hz
Wednesday, October 5, 2011 at 4:06pm

Physical Science
Can someone please help me with this question Im not really sure what the question is asking, I don't understand at all. Please explain. With sound, you get harmony when the frequencies of two sounds are in the ratios of small integers - eg, two sounds with one frequency ...
Wednesday, October 5, 2011 at 4:01pm

PHYSICAL SCIENCE
density of a sample of zinc that has a mass of 48 kilograms and a volume of 7.5 mL.
Wednesday, October 5, 2011 at 9:59am

Chem
State one physical property and one chemical property of oxygen. Physical property: Chemical property:
Wednesday, October 5, 2011 at 3:40am

Social studies
What were the earliest civilizations in Mesopotamia? What would be a physical description of Mesopotamia? Cultural description of southwest Asia?( main language, religion, resources,etc)
Tuesday, October 4, 2011 at 7:25pm

Language Arts
In the sentence....The letter listed gifts for the wedding. Would listed be a physical action verb or a mental action verb?
Tuesday, October 4, 2011 at 9:08am

Language Arts
In the sentence ...The letter listed gifts for the wedding. Would listed be a physical action verb or a mental action verb?
Tuesday, October 4, 2011 at 7:59am

Language Arts
In the sentence....It formally accepted the bride into the groom's family. Would accepted be a mental action verb or a physical action verb?
Monday, October 3, 2011 at 10:02pm

ped212
Discuss the differences between process and product evaluation. Give examples of each type of evaluation. Discuss the value of each type of evaluation. What is the significance of focusing on the process in physical education? How does this information help you as a teacher to...
Monday, October 3, 2011 at 9:15pm

Physical Science
What fuel other than uranuin can be used in a nuclear reactor?
Sunday, October 2, 2011 at 9:53pm

physical Chem
why does the Shroedinger equation have a specific operator for kinetic energy and only a general expression (V) for potential energy
Sunday, October 2, 2011 at 3:00pm

English
I have to write an analytical essay discussing how Chaucer's Wife of Bath's Tale and Prolgue present the complex interaction of body and spirit. And I am struggling on a good thesis. From the text, I know that she definitely indulges in the bodily, as she constantly ...
Sunday, October 2, 2011 at 1:11pm

physical geology
Select a city or region that is faced with one of the following issues: o Saltwater invasion in coastal wells o Depletion of an aquifer for drinking or agricultural water o Subsidence associated with water pumping o Depletion or pollution of surface water from human use o ...
Sunday, October 2, 2011 at 1:05am

Physical Science
An electric hoist lifted a load with a mass of 250kg to a height of 80m in 39s , Calculate
Friday, September 30, 2011 at 11:56am

understanding psychology
when physical energy has resulted in a response in a sense organ, it is clear that:
Thursday, September 29, 2011 at 7:13pm

psychology
One common aspect of among dissociative disorders is: (a.)memory of childhood abuse. (B.)escape from an anxiety-producing situation. (C.)a painful physical symptom.(d.) departure from reality.
Thursday, September 29, 2011 at 4:40pm

Physical science/football/algebra
suppose that Andrew is running down the field at 8 yards per second and then cuts right running 6 yards per second. He executes this maneuver in 0.5 seconds. Calculate his acceleration
Thursday, September 29, 2011 at 4:11pm

Physical science/football/algebra
suppose that Andrew is running down the field at 8 yards per second and then cuts right running 6 yards per second. He executes this maneuver in 0.5 seconds. Calculate his acceleration
Thursday, September 29, 2011 at 4:11pm

Physical science/football/algebra
suppose that Andrew is running down the field at 8 yards per second and then cuts right running 6 yards per second. He executes this maneuver in 0.5 seconds. Calculate his acceleration
Thursday, September 29, 2011 at 4:11pm

Physical Science
Alpha particle tracks through gases and thin metal foils show few deflections. What does this tell us about the atom??
Thursday, September 29, 2011 at 2:52pm

Physical Science
True or False. To a scientist, work is done when a force is exerted through a distance.
Tuesday, September 27, 2011 at 5:31pm

social studies
give me examples of physical features?
Tuesday, September 27, 2011 at 4:29pm

physical science
17. In the Mass in Motion lab, you rolled a ball down a ramp to see how far it moved a cup. What did this experiment demonstrate? (Points : 3) An object´s momentum increases with velocity. An object´s momentum decreases with velocity. An object´s mass ...
Tuesday, September 27, 2011 at 1:51pm

physical science
give one word/term for each of the following descriptions. 1.A substance that donates electrons in chemical reaction. 2.The formula showing the simplest whole number ratio in which the atoms combine to form a compound.
Tuesday, September 27, 2011 at 12:39pm

Health
11. The physical changes that prepare your body to respond quickly and appropriately to stressors are medical alert responses. a. true b. false B? 29. Someone with ADHD is likely to benefit from a. group therapy b. medication c. psychotherapy d. all of the above B? 33. Seeing ...
Monday, September 26, 2011 at 9:07pm

physical science
a sled and rider with a combined weight 60kg are at rest on the top of a hill 12m high. what is their total energy at the top of the hill?
Monday, September 26, 2011 at 7:26pm

Physical Science
1. A silver bar 0.125 meter long is subjected to a temperature change from 200C to 100C. What will be the length of the bar after the temperature? A. 0.124764 meter (MY ANSWER) B. 0.00023635 meter C. 0.00002363 meter D. 0.0000189 meter 2. When the molecules in a body move with...
Monday, September 26, 2011 at 5:24pm

Physical Science
1. In which of the following units is acceleration expressed? *A. Newtons B. Foot-pounds C. Kilograms D. Meters per second squared 2. A stone falls from a ledge and takes 16 seconds to hit the ground. The stone has an original velocity of 0 m/s. How tall is the ledge? A. 1,254...
Monday, September 26, 2011 at 2:17pm

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