Recent Homework Questions About Physical Fitness
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Physical Science
1. The most diffuse elements have the largest atomic weight. -False? 2. A quantum is a small energy unit. -False? 3. Light travels in a continuous wave. -True?
Friday, January 11, 2013 at 3:55pm
physical science
determine the velocity of the ball when it is 8m above the thrower's hand
Friday, January 11, 2013 at 2:11am
Medical billing and coding
In what model of the integrated delivery system do physicians keep their own offices but share administrative and management services with other managed care organizations? A)group practice without walls B)physical hospital organization C)management service organization D)...
Thursday, January 10, 2013 at 8:54pm
Social studies
What are physical traits of a region???
Wednesday, January 9, 2013 at 9:46pm
Social Studies
Which type of amp would you use to find out the population of northern canada thematic? Which type of map would you use to compare the elevations of the alpha and andes physical?
Wednesday, January 9, 2013 at 7:21pm
Social Studies
Answer each question below with one of the three types of maps described below Physical Thematic Political Which type of map would you use to find out if Denver is located in the Rocky Mountains? Physical Which type of map would you use to find out what the weather is like in ...
Wednesday, January 9, 2013 at 6:47pm
physical science
push a box across a table with a force of 5 newtons and the box moves 0.5 meter. how much work has been accomplished?
Wednesday, January 9, 2013 at 5:50pm
Math
The Dubuque Cement Company packs 80-pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company's policy is a 23% allowance for workers. a) Compute the standard time for...
Wednesday, January 9, 2013 at 8:10am
Accounting
The Dubuque Cement Company packs 80-pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company's policy is a 23% allowance for workers. a) Compute the standard time for...
Wednesday, January 9, 2013 at 8:02am
physical science
a car go on 54kmph . the driver see a person about 46m .Then the driver click the stop bottom . the car stop 1m a front of the people. what is the time to stop it ?
Wednesday, January 9, 2013 at 1:16am
physical science
Mike jogs east at a rate of 4 mph. The wind is blowing west at 1 mph. What is Mike's velocity?
Tuesday, January 8, 2013 at 5:13pm
physical science
When iron metal reacts with oxygen, the reaction can form Fe2O3. Write a balanced chemical equation for this reaction, and find the number of moles of oxygen that are needed to form 6 mol of Fe2O3. Show your work.
Monday, January 7, 2013 at 4:41pm
physical science
Under a pressure of 200 kPa, a confined gas has a volume of 2,500 cubic meters. The pressure acting on the gas is increased to 500 kPa. What is the new volume of the gas if the temperature remains the same?
Monday, January 7, 2013 at 4:01pm
Physical science
Compute the gravitational force between two 1.00 kg lead spheres whose centers are 1.00 m apart?
Sunday, January 6, 2013 at 9:48pm
Control Syatem
Give an example of a physical system whose transfer function model has a pole in the right.
Sunday, January 6, 2013 at 8:31pm
army
1. List the five Components of Fitness. 2. There are seven recognized Principles of Exercise; List at least five of them. 3. You are designing a fitness program for your Soldiers; list the Three Phases of Conditioning that you must consider. 4. When we analyze our wartime ...
Thursday, January 3, 2013 at 6:57pm
scince
What is the difference between chemical and physical change?
Thursday, January 3, 2013 at 3:37pm
physical science
Using Fig. 4.28 as an example, how much applied force would the man need to have to pull the block (weight or output force = 500 N) if the rope he is holding is 7 m long and the rope on the pulley is 2 m long? (Hint, the pulley is a simple machine)
Thursday, January 3, 2013 at 1:20pm
physical science
8. Which one has more momentum? Which has the greater impulse? a. A 2000 kg car moving at 5 m/s b. A 9 g bullet traveling at 450 m/s
Wednesday, January 2, 2013 at 6:30pm
physical science
4. Jane weighs 150 lbs and Bob weighs 220 lbs. They decide to try skydiving. If they jump at the same time, who would reach the ground first
Wednesday, January 2, 2013 at 6:29pm
Math
The Dubuque Cement Company packs 80-pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company's policy is a 23% allowance for workers. a) Compute the standard time for...
Wednesday, January 2, 2013 at 1:29pm
Physical Science
What is the acceleration of an airplane with an initial velocity of 150 m/s and a final velocity of 175 m/s and the velocity change was made in 5 seconds? .
Wednesday, January 2, 2013 at 12:18am
Can you please revise this?
Dear Wiesel, It is a huge pleasure for me to write this letter to you. My name is name, a current high school senior at school name located in the city of city's name. I want you to know that I am a very faithful fan of yours. I enjoy your writings, especially your story ...
Tuesday, January 1, 2013 at 11:13pm
7th grade social studies
1. To pinpoint the absolute location of a place, geographers use (1 point) nearby landmarks. the Atlantic and Pacific oceans. the North and South poles. latitude and longitude. 2. What does the theme of movement help geographers to understand? (1 point) a location's ...
Tuesday, January 1, 2013 at 8:05pm
ART ~ I NEED HELP
1. This term refers to presenting an image so realistically that it has no hidden meaning. (1 point) allusion literalism personification abstraction 2. This is an emotion, idea, or concept that has no physical properties but is still experienced in real life. (1 point) ...
Saturday, December 29, 2012 at 10:57pm
Need help with ~Social Stusies!
This is a practice so it's rather extensive but it's important i get the points for it so can u please check it thx! 1. To pinpoint the absolute location of a place, geographers use (1 point) nearby landmarks. the Atlantic and Pacific oceans. the North and South poles...
Saturday, December 22, 2012 at 7:20pm
Physical Science
An exercise spring has a spring constant of 315 N/m. How much work is required to stretch the spring 30 cm? What force is needed to stretch the spring 30 cm?
Wednesday, December 19, 2012 at 7:31pm
physical science
1-Patty climbs a tree. While sitting on a branch, she drops a leaf and an acorn at the same time. What would happen?
Tuesday, December 18, 2012 at 6:11pm
Adv. Physical Science
an automobile to be transported by ship is raised above the dock by a crane. If the gravitational potential energy of the car is 6.6 x 10^4 and the mass is 960 kg how high has the car been lifted?
Sunday, December 16, 2012 at 2:05pm
social studies
can you see if i have good grammar,usage, mechanics and spelling Job description: use various types of equipment, develop, secure, and packages. Physical evidence for scientific evaluation and comparison, prepares detailed reports on the observation and activities at the scene...
Sunday, December 16, 2012 at 9:52am
physical science
A 3000-kg car bumps into a stationary, 5000-kg truck. The velocity of the car before the collision was +4 m/s and -1 m/s after the collision. What is the velocity of the truck after the collision?
Saturday, December 15, 2012 at 1:45pm
Physical Science
Write a paragraph or two about how and why has the atomic idea/model changed (Greeks 1600-1930)
Friday, December 14, 2012 at 3:23pm
SCIENCE
which process does not produce a physical change of state? A) MELTING ICE B) HEATING WATER VAPOUR C) FREEZING WATER D) MY GUESS IS
Thursday, December 13, 2012 at 9:12pm
physical science
In 300 words or more explain the similarities and differences between ionic, covalent, and metallic bonding.
Thursday, December 13, 2012 at 8:43pm
physical sciences
The density of mercury is 13.54 g/cm3. Suppose you need 40 gm of mercury for an experiment. What volume of mercury do you need?
Thursday, December 13, 2012 at 9:11am
Biology
1. Two species live in the same area but breed in different parts of their habitat. These species are A) geographically isolated. B) ecologically isolated. C) artificially isolated. D) likely to produce hybrids. 2. A large population of animals is split in two by a physical ...
Wednesday, December 12, 2012 at 9:44pm
Physical Science
Greyhounds can accelerate at 7/m/s2 at a start of the race . How much force does it take a 35 kg dog to produce this acceleration?
Tuesday, December 11, 2012 at 7:11pm
Physical Science
How much force is required to give a 500kg crate an acceleration of 2 m/s2 on an icy surface without friction?
Tuesday, December 11, 2012 at 6:24pm
Physical Science
an object with a mass of 50kg is hurled at an acceleration rate of 30 m/s2. How much force was applied to the object?
Tuesday, December 11, 2012 at 6:19pm
physical Science
How much force is required to give an object with mass of 20kg an acceleration of 12m/s2 ?
Tuesday, December 11, 2012 at 6:06pm
physical science
on hole 9,Bill hit a golf ball. The golf ball weights 0.45 kg.The acceleration on the ball was 4/m/s2. What was the force of Bill swing?
Tuesday, December 11, 2012 at 5:18pm
Physical Science
Bill hit a ball with an acceleration of 40 ms2.The mass of the ball is 0.5kg. What is the force?
Tuesday, December 11, 2012 at 5:12pm
language
Find the verb in each sentence. 1. The people believe in the giant. 2. Clearly, the giant cares about the town of Barletta. 3. Unfortunately, an army attacks the town. 4. The people quickly identify the trouble. 5. With a little thought, the giant solves the problem. 6. He ...
Monday, December 10, 2012 at 7:02pm
case management
15. If we do not follow up with clients, what is the risk that may happen? A. the client will get lost in the system or drop out B. the client may go to another provider or organization C. services will cluster around the physical aspects D. the client will may become ...
Monday, December 10, 2012 at 12:13pm
Physical Education
What is the average weight for 8th grade girls?
Sunday, December 9, 2012 at 7:11pm
physical
At what age does exercise begin to result in strength in boys and girls?
Saturday, December 8, 2012 at 6:26pm
physical science
calculate the change in thermal energy when 120kg of sand warms from 10 degrees celcius to 90 degrees celcius
Friday, December 7, 2012 at 1:22pm
Physical Science
A car with a mass of 1,400 kg is traveling at a speed of 40 m/s. What is its momentum
Thursday, December 6, 2012 at 3:36pm
physical science help please!
If a sample emits 1000 counts per second when the detector is 1 meter from the sample, how many counts per second would be observed when the detector is 2 meters from the sample?
Wednesday, December 5, 2012 at 8:55pm
Physical Science- Help Please!
Suppose that you are given a 100 gram sample of a radioactive substance with a half-life of 32 days. How many grams will be left after 192 days?
Wednesday, December 5, 2012 at 4:13pm
physical
if there are x,y and z are three piston what is the area of piston y and how much force is exerted in the condition of friction is zero.
Tuesday, December 4, 2012 at 10:35am
Math (trigonometry)
MONDAY December 3, 2012 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th...
Monday, December 3, 2012 at 8:14pm
geography
Can you check my answers please? 1. What continents touch the 60 degrees W line of longitude? North America and South America, Antarctica 2. What do green areas on physical maps usually mean? It usually means land or low-lying land areas. 3. What is the capital of Switzerland...
Monday, December 3, 2012 at 7:36pm
Physics
An X-ray scattering from an electron with negligible initial kinetic energy is observed to undergo a change in wavelength by 2.561 pm. i.e. The scattered X-ray photon has a wavelength 2.561 pm larger than the incident X-ray photon.  Find ...
Monday, December 3, 2012 at 12:38pm
Physics
An X-ray scattering from an electron with negligible initial kinetic energy is observed to undergo a change in wavelength by 2.561 pm. i.e. The scattered X-ray photon has a wavelength 2.561 pm larger than the incident X-ray photon.  Find ...
Monday, December 3, 2012 at 12:36pm
Physics
Monochromatic light of an unknown wavelength passes through a single slit of width 5.59 μm and forms an interference pattern on a screen 1.26 m away. The width of the central bright fringe of the interference pattern is 18.8 cm. The same...
Monday, December 3, 2012 at 12:27pm
Chemistry
A hungry backpacker needs to boil 150 mL of water to prepare a cup of Ramen Noodles. The filtered river water is at a temperature of 14.2 oC. The pressure is 760 mm Hg and he wants to eat the chicken flavored noodles. How many mL of his liquid butane camping fuel will he use ...
Monday, December 3, 2012 at 11:48am
Nutrition
How can I write although reading, writing and math are important in school so is health and physical education?
Monday, December 3, 2012 at 6:45am
CRT 205
I am having trouble finding the premise in the article Cyberbullying is Not Worse than Physical Bullying
Saturday, December 1, 2012 at 9:54pm
Physical Chemistry
Calculate DS if the temperature of 3 moles of an ideal gas with Cv,m = 1.5R is increased from 200 K to 500 K under conditions of (a) constant pressure and (b) constant volume.
Friday, November 30, 2012 at 8:43pm
Physical Chemistry
Evaluate (dS/dV)T for a van der Waals gas and a perfect gas
Friday, November 30, 2012 at 8:39pm
20 question please check my answers
1. A sickness resulting from eating food that is not safe to eat empty-calorie foods nutrition foodborne illness nutrient density 2. A nutrient that helps control the amount of fluid in your body sodium calorie protein nutrition 3. A measure of nutrient content relative to ...
Friday, November 30, 2012 at 2:34pm
Physical science
A solution that contains a small amount
Thursday, November 29, 2012 at 8:52pm
P Chem
5. The Li atom has three electrons. Measured values of the first and second ionization potentials are 5.3917 eV and 75.6400 eV, respectively. (i) Calculate the exactly correct value of the third ionization potential. Hint: What kind of species is Li+2? Give the result in ...
Thursday, November 29, 2012 at 5:07pm
physical education
how do you know when you are growing
Wednesday, November 28, 2012 at 7:42pm
science
can you please tell me which catergory these belong in chemical or physical property? 1. arrangement of particles have changed 2. absorb or release. energy(endothermic/exothermic reactions) 3. change in appearance only. 4. cant be undone. 5. size and shape may change
Wednesday, November 28, 2012 at 6:16pm
Physical science
A cross country runner runs 12km in 41 minutes. What is his average speed?
Wednesday, November 28, 2012 at 3:06pm
psych
1.21 (1 pts.) William is acutely retarded and requires intense care. His IQ has been measured at approximately 15. What term would be used to classify William's level of retardation? A) mild B) moderate C) severe D) profound # 1.22 (1 pts.) Shannon has been diagnosed with...
Tuesday, November 27, 2012 at 1:05pm
Physical science
Physical science a 2.0g metal ball that carries a charge of 10 uC is placed into an electric field. the ball at rest at point A is accelerated to point B with a speed of 1.0 m/s. what is the electric potential difference between point A and point B?
Sunday, November 25, 2012 at 8:17pm
PHYSICS
What is the direction (vertical or horizontal) of the transmission axis of Polaroid sunglasses? Give the physical reason for your answer.
Sunday, November 25, 2012 at 3:50am
PHYSICS
What is the direction (vertical or horizontal) of the transmission axis of Polaroid sunglasses? Give the physical reason for your answer.
Sunday, November 25, 2012 at 3:49am
English and Grammar
first draft of my report and i need help in improving this. i didnt made up all the information here all comes from a book. Dissociative identity disorder is defined in the DSM-IV-TR as the presence of two or more personality identities that repeatedly take control of one...
Friday, November 23, 2012 at 12:27pm
Physics
Two Peaches, Two Seconds, One Roof: A peach is thrown straight up from the edge of the roof of a building. A second peach is dropped from the roof 2s later. a. If the height of the building is 60m what must the initial speed of the first peach be if both are to hit the ground ...
Tuesday, November 20, 2012 at 10:43pm
biostatistic
recent suggestion is 60 min of exercise per day. A sample of 50 adults in a study of risk factor report exercising a mean of 38 min per day with a standerd deviation of 19 min .based on sampal data, is physical activity significantly less than recommended? Run the appropriate ...
Tuesday, November 20, 2012 at 1:37pm
Physical
The pencil line is made out of carbon atoms. Assuming that the average diameter of a carbon atom is 3.49x10^-10m, how many atoms thick is the pencil?
Tuesday, November 20, 2012 at 12:54pm
Physical chemistry
If a sample of AgCL is shaken with excess water and concentrated solution of sodium chloride, how would the equilibrium be affected
Tuesday, November 20, 2012 at 2:20am
Physical Chemistry
"Liquids A and B, which have identical molar volumes, are mixed together in equal volumes to form a 75 mL mixture. The liquids are partially miscible and the mixture phase separates into an upper phase with a composition xA=0.45 and a lower phase with a composition xA=0....
Monday, November 19, 2012 at 10:31am
physical science
a track and field athlete is running forward with a javelin at a velocity of 4.2 m/s. If he throws the javelin at a velocity relative to him of 10.3 m/s,then what is the velocity of the javelin relative to the ground? please help quick!! thanks :)
Saturday, November 17, 2012 at 11:48pm
physical science
if 34,560 j of work was done with a force of 960 n, how far was the object moved?
Friday, November 16, 2012 at 9:58am
Physical Sci
John used a force of 300 N to push his younger brother in a wagon for 50m. How much work did John do?
Friday, November 16, 2012 at 9:49am
Sceince
3. Which of the following physical features are caused by plate tectonics? mountains and volcanoes rift valleys and mid-ocean ridges strike-slip faults all of these
Thursday, November 15, 2012 at 5:14pm
Physical scince
What are the equations for potential and kinetic energy?
Wednesday, November 14, 2012 at 5:24pm
social studies
What physical feature is in Africa that is located in the north and seperates it from Europe?
Tuesday, November 13, 2012 at 9:02pm
social studies
What physical feature in Africa is located in the northeast and seperates it from Asia?
Tuesday, November 13, 2012 at 9:00pm
Physical Science Need Help Please!
A light beam has a frequency of 5 x 1015 Hz. What is its wavelength?
Tuesday, November 13, 2012 at 5:15pm
Economics
What type of labor occurs in Kenya? What percentage of it is physical labor, mental, other? Thanks
Monday, November 12, 2012 at 3:23pm
Economics
What is kenyas factor of production for their land and labor? Which means what percentage do they use their land for what. For te labor it means what labor occurs their, whether it be physical or mental labor. I need details as well as percentages for both. I would really ...
Sunday, November 11, 2012 at 7:16pm
physical science
A birthday candle 4 cm high is 10 cm from a converging lens whose focal length is 15 cm. Use a ray diagram on a suitable scale to find the location of the image, its height, and whether it is erect or inverted, real or virtual.
Saturday, November 10, 2012 at 5:14pm
Chemistry
Discuss the effect of the 'extra' hydroxyl groups on the physical properties of diols and triols, compared to alkanols that have only one hydroxyl group. HINT: Consider the polar nature of the hydroxyl group Really need help for this!!!
Friday, November 9, 2012 at 5:01am
health
Question 11 of 20 5.0 Points Regular physical activity appears to reduce symptoms of ________ for children and adolescents. A. Anxiety and depression B. Low self-esteem C. Identity or role confusion D. All of the above i think it is b?
Thursday, November 8, 2012 at 10:15pm
physical science
what are contibutions jj tomson made to the atomic theory and the experiment he conducted to find his dicovery
Thursday, November 8, 2012 at 7:15pm
physical science
how far was a box moved if 558.6 joules of work was done when a force 126Newtons was exerted to move the box?
Thursday, November 8, 2012 at 4:01pm
physical science
how far was a box moved if 558.6 joules of work was done when a force 126Newtons was exerted to move the box?
Thursday, November 8, 2012 at 4:01pm
Physical Science
Compute the wavelength in air of ultrasound with a frequency of 50 kHz if the speed of sound is 344 m/s.
Thursday, November 8, 2012 at 3:41pm
physical
to strengthen his arm and chest muscles, an 82-kg athlete who is 2.0 m tall is doing push ups. his center of mass is 1.15 m from the bottom of his feet, and the centers of his palms are 30.0cm from the top of his head. find the force that the floor exerts on each of is feet ...
Thursday, November 8, 2012 at 12:02am
McKay
website to help identify physical or mental action verbs?
Wednesday, November 7, 2012 at 11:41pm
physical science
Johniece jogs 7 feet then turns 90 degrees and jogs 2 feet. What is the distance and the displacement ?
Wednesday, November 7, 2012 at 11:09pm
Physical Science Help, PLEASE!
A marine weather station reports that waves along the shore at 10 seconds apart. The frequency of the waves is?
Wednesday, November 7, 2012 at 7:22pm
Physical Education
Tom served to Sue, who set up Stacey for a spike. Stacey went up for the spike and hit it into the ground on Team A's side. In the process of spiking the ball, Stacey hit the net with her hand. Who won the point and why?
Wednesday, November 7, 2012 at 5:17pm
Physical Science
A truck whose bed is 2.5m long, 1.5m wide, and 1m high is delivering sand to a construction site. How many trips must the truck make to deliver 7? cubic meters of sand? Plese explain your answer.
Wednesday, November 7, 2012 at 1:02am
Physical Science
A truck whose bed is 2.5m long, 1.5m wide, and 1m high is delivering sand to a construction site. How many trips must the truck make to deliver 7? cubic meters of sand? Plese explain your answer.
Wednesday, November 7, 2012 at 1:01am
physical science
A 30.0kg child standing from rest slides down a water slide with a vertical height of 10.0m. What is the childs speed (a)halfway down he slides vertical distance and (b)three-fourths of the way down? (Neglect friction?
Tuesday, November 6, 2012 at 2:54pm
statistics
Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 48 male ...
Monday, November 5, 2012 at 9:59pm
Physical Science Help!
A transformer has 25 turns in the primary coil and 200 turns in the secondary coil. If 12 V is connected to the primary coil and a 20-Ù device is connected to the secondary coil, calculate the current in Amperes passing through the device
Monday, November 5, 2012 at 8:57pm
science
give an example of a physical stimulus for touch, sight, and hearing. name the organs this sense is associated with.
Sunday, November 4, 2012 at 10:21pm
Culturally Diverse Background
Will someone check my answers. 1.During a class fingerpainting activity,Doresha appeared perplexed by the teacher's question, What are you doing, Doresha did not respond quickly or with ease. Why did Doresha respond to this eventcast the way she did? a. Doresha is from a ...
Sunday, November 4, 2012 at 2:23am
Physical Science
When you do 100 J of work on the handle of a bicycle pump, the pump does 40 J of work pushing the air into the tire. What is the efficiency of the pump?
Saturday, November 3, 2012 at 8:58pm
Grammar and punctuation
Select the sentence which is correctly punctuated, spaced, and capitalized. A) The patient will see Dr. Jones, cardiologist, Dr. Green, pulmonologist, and Dr. Frank, physicaltherapist. B) The patient will see Dr. Jones, cardiologist; Dr. Green, pulmonologist; and Dr. Frank, ...
Wednesday, October 31, 2012 at 11:57am
physical
Adult cheetahs, the fastest of the great cats, have a mass of about 74 and have been clocked at up to 70 (31 ).
Tuesday, October 30, 2012 at 8:09pm
grammar action and linking verbs(mental or physica
In China, shrines honor ancestors. Is honor an a. action verb(physical)b. action verb(mental) c. linking verb d. not a verb
Tuesday, October 30, 2012 at 10:51am
Medical Assistant
A 66-year-old Medicare patient came to the office for his annual physical. He has past history of hypertension, controlledy by medication, and new complsints of dizziness and tiredness. During the course of the examination the physician found BP of 160/130. Adetailed history ...
Monday, October 29, 2012 at 9:18pm
Physical science
Which is not an example of acceleration? a) A person jogging at 3m/s along a winding path b) A car stopped at stop sign c) A cheetah running 27m/s east d) A plane taking off
Monday, October 29, 2012 at 8:46pm
Chem 1411
How would you show that dissolving table salt is a physical change?
Monday, October 29, 2012 at 7:37pm
Q&A Check Please, geo 7th grade
The Missouri River flows southward to the Gulf of California. FALSE a lower area of land generally surrounded by mountains BASIN Summer ocean currents come in from the north. FALSE THE COAST OF CALIFORNIA Most of Canada and Alaska have a subarctic climate. TRUE The Continental...
Monday, October 29, 2012 at 6:19pm
physical
You are on a train that is traveling at 3.0 m/s along a level straight track. Very near and parallel to the track is a wall that slopes upward at a 12° angle with the horizontal. As you face the window ( 0.715 m high, 2.29 m wide) in your compartment, the train is moving ...
Sunday, October 28, 2012 at 5:57pm
physical science
A substance whose 0xidation number decreases during a chemical reaction
Sunday, October 28, 2012 at 8:35am
Statistics
A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 460 seconds and a standard deviation of 40 seconds. The fitness ...
Wednesday, October 24, 2012 at 11:09pm
Physical Science
Sound travels about 1530 m/s in sea water. How many times faster does sound travel in sea water than in air? (The speed of sound in air at 25°C is about 345 m/s.)
Wednesday, October 24, 2012 at 8:20pm
physical
A dog is pulled at an angle of 30 degrees with the horizon using a tension of 450N. If the sled has a mass of 50kg, then find the recoil, forward force and acceleration (if any)?
Tuesday, October 23, 2012 at 11:27pm
Chemistry
If you spilled a container of iron filings on the ground, how would you separate the iron fillings from the soil using their individual physical properties?
Tuesday, October 23, 2012 at 6:20pm
Abnormal Psychology
For some teens, particularly girls, excessive efforts to control eating may be a misguided effort to A. punish parents. B. manage the stress and physical changes that confront them as they pass into adolescence. C. punish themselves. D. regress back to the oral stage of ...
Tuesday, October 23, 2012 at 6:08pm
physical science
How much heat is absorbed by a persons hand if 100 grams of liquid water at 100°C is poured on his hand? (Assume the final temperature of the water will be normal body temperature of 37°C)
Tuesday, October 23, 2012 at 5:41pm
Physical Science
If liquid pressure were the same at all depths, would there be a buoyant force on an object submerged in the liquid?
Tuesday, October 23, 2012 at 6:28am
physical science
how much heat is absorbed by contacting 10 grams of 100 degree C steam by a students hand.
Monday, October 22, 2012 at 10:17pm
physical science
how much heat is absorbed by pouring 10 grams of 100 degree C liquid water on a students hand. The water is cooled to body temperature 37 degree C
Monday, October 22, 2012 at 10:14pm
Physical Science
How much heat is absorbed by pouring 10 grams of 100°C liquid water on a students hand. The water is cooled to body temperature, 37°C. Assume that all of the heat is absorbed by the hand
Monday, October 22, 2012 at 12:49pm
PHYSICAL SCIENCE
How do the pressure variation with depth affect our ability to explore the ocean?
Monday, October 22, 2012 at 5:28am
Marketing
Identify the product concepts you used in determining the packaging. How does the packaging affect the effectiveness of the packaging? Are there any physical, social, or economic restraints that could limit or enhance your packaging? Market Research Product Concepts
Sunday, October 21, 2012 at 9:07pm
Physical science
What is the gravitational potential energy of a 5kg object resting 3m above the ground?
Sunday, October 21, 2012 at 3:40pm
Physical Science
Phairade roul
Friday, October 19, 2012 at 9:03pm
Physical Science
A block of ice at 0^\circ {\rm C} is dropped from a height that causes it to completely melt upon impact. Assume that there is no air resistance and that all the energy goes into melting the ice. What is the height necessary for this to occur.
Thursday, October 18, 2012 at 4:07pm
GEOL 108
Do you have the answers to exercise 30 in Darrel Hess's Physical Geography Laboratory Manual tenth edition?
Thursday, October 18, 2012 at 3:51pm
physical science
A clam is dropped by a seagull it takes 3 seconds to hit the ground. what is the seagulls height approximate height above the ground at the time the clam was dropped?
Wednesday, October 17, 2012 at 9:40pm
Physics
PLEASE SOMEONE HELP ME WITH THIS DARN QUIZ. I'm so lost and all my teachers are too 'BUSY' to help me. :/ I'm getting so sick and tired of studying and not getting it but then having to take the blame for my instructor's folly. 2. Which of the following is...
Wednesday, October 17, 2012 at 6:02pm
Physics
1. Which of these physical situations describes an inversely proportional relationship? (Points : 1) The volume always decreases as the pressure increases. The volume always increases as the pressure increases. The pressure vs. volume graph is a straight line passing through ...
Wednesday, October 17, 2012 at 4:46pm
social studies
The European Union (EU) was formed to advance the economic goals of Europe. Countries of the EU open their borders to member nations. European citizenship is extended to all, allowing people to live, work, and vote in any member nation. Member nations have common policies in ...
Wednesday, October 17, 2012 at 2:05pm
world geography
The statement, "People celebrate their birthdays on January 1st" is an example of what type of region? o climate o cultural o physical o political
Wednesday, October 17, 2012 at 1:57pm
world geo
The statement, "Paraguay is one of two landlocked South American nations" describes what type of region? o cultural o economic o physical o political
Wednesday, October 17, 2012 at 1:49pm
Physical science
A hot iron ball is dropped into 200g of cooler water. The water temperature increases by 2.0 degrees C and the temperature of the ball decreases by18.6 degrees C. What is the mass of the iron ball?
Tuesday, October 16, 2012 at 9:33pm
physical
what is the tension in the biceps tendon if the hand is holding a 10 kg ball while the forearm is held 45 degrees below horizontal
Tuesday, October 16, 2012 at 6:36pm
physics
Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices. Rank these from easiest ...
Monday, October 15, 2012 at 7:40pm
physics
Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices. Rank these from easiest ...
Monday, October 15, 2012 at 7:40pm
physics
Your physical therapist throws a baseball to you at a certain speed and you catch it. To increase the difficulty, the therapist is going to throw you a medicine ball whose mass is ten times the mass of the baseball. You are given the following choices. Rank these from easiest ...
Monday, October 15, 2012 at 7:34pm
s.s.
what is meant by "people as resorce" ?explain how is human resource diffrent from other resorces like land and physical capital?
Monday, October 15, 2012 at 5:43am
Pre-Calculus
An indoor physical fitness room consists of a rectangular region with a semicircle on each end. The perimeter of the room is to be a 200-meter running track. a) Draw a figure that visually represents the problem. Let x and y represent the length and width of the rectangular ...
Sunday, October 14, 2012 at 7:05pm
physical
Oasis B is a distance d = 8.0 km east of oasis A, along the x axis shown in the figure. A confused camel, intending to walk directly from A to B instead walks a distance W1 = 21 km west of due south by angle θ1 = 15.0°. It then walks a distance W2 = 30 km due north. ...
Saturday, October 13, 2012 at 9:05pm
physical science
A 0.50 kg block initially at rest on a frictionless horizontal surface is acted upon by a force of 8.0 N for a distance of 7.5 m. What is the velocity of the block in m/s?
Saturday, October 13, 2012 at 4:55pm
physical sicence
If a force gives a 2-kg object an acceleration of 1.6 m/s2, what acceleration does this same force give to an 8-kg object?
Friday, October 12, 2012 at 11:32pm
Pacific Island
How did physical features affect migration and the distribution of culture groups in the Pacific Island Region?
Friday, October 12, 2012 at 7:05pm
Physical Science
You submerge 100 grams of steel in 200 grams of water. If the steel has an initial temperature of 80°C and the water has an initial temperature of 10°C, what is the final temperature of the system? The specific heat capacity of the steel is 0.15 cal/g°C
Friday, October 12, 2012 at 5:19pm
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