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October 21, 2014

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Recent Homework Questions About Physical Fitness

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physical science
A tractor pulls a tree trunk across horizontal piece of ground. If the force in the chain is 3000N and the chain forms an angle of 30 degrees with the group , calculate 1the force with wch the tree is pulled across the ground 2 the force with wch the tree is lifted
Monday, January 28, 2013 at 11:55am

physical sciences
Imagine a circle with a diameter of 2km.if this represents an atom ,which answer would best represent the nucleus?choose the correct answer:a table tennis ball(diameter;2cm)atennis ball(diameter;7cm)avolley ball(diameter;20cm)a soccer ball(diameter;25cm)
Monday, January 28, 2013 at 11:03am

Physical science
An object is on a horizontal surface,three force act horizontal on the object.3N to the left,12N to the right,in to the left.at the same time,another three force act vertically on the object,4N upwards,10N downward,2N downwards determine the resultant horizontal and vertical ...
Monday, January 28, 2013 at 10:27am

Physical science
An object is on a horizontal surface,three force act horizontal on the object.3N to the left,12N to the right,in to the left.at the same time,another three force act vertically on the object,4N upwards,10N downward,2N downwards determine the resultant horizontal and vertical ...
Monday, January 28, 2013 at 10:24am

phy
1 Physical quantities such as length, mass, time and temperature are referred to as vector quantities fundamental quantities scalar quantities derived quantities 2 The following are examples of vector quantities except displacment velocity accleration speed 3 The addition of ...
Monday, January 28, 2013 at 3:35am

phy
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? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the passenger Both ...
Monday, January 28, 2013 at 3:33am

CHM
Which of the following is not an example of a physical change? is this the right Answer accidentally leaving a piece of toast in the toaster until it is completely black
Sunday, January 27, 2013 at 11:24pm

Physical Science
A hot dog bun (volume 240 cm3) with a density of 0.15 g/cm3 is crushed in a picnic cooler into a volume of 195 cms. What is the new densitu of the bun?
Sunday, January 27, 2013 at 11:07pm

Accounting
Hello, I’m having a difficult time understanding how to adjust the following unadjusted accounts: A/R ……………… ​3;………………..​480,000 Accum. Depr, building………116,000 Accum. Depr, ...
Sunday, January 27, 2013 at 7:30pm

physical
A marathon runner runs 3km in direction 0degree and them 4km in direction 90degree. total time for the race is 2 hours.so determine the total distance covered?
Sunday, January 27, 2013 at 1:53pm

Physics
The modern Boeing 747 passenger jet airplane cruises at a speed up to 900 km/hr, at an altitude of 11,000 m. The cabin pressure is maintained equivalent to the atmospheric pressure at an altitude of 2,000 m. This is called the "cabin altitude". The pressure as a ...
Sunday, January 27, 2013 at 4:01am

statistic
Over the past 10 years, the local school district has measured physical fitness for all high school freshmen. During that time, the average score on a treadmill endurance task has been μ  19.8 minutes with a standard deviation of   7.2 minutes. Assuming that ...
Sunday, January 27, 2013 at 2:10am

Language Art
I'm currently doing a project and need a physical object to represent "racism". Anyone have a suggestion of such item? Thanks
Friday, January 25, 2013 at 7:40pm

Physical Sciences
How do I calculate the initial velocity of a ball if i've only given a maximum height of 12metres above its starting point?
Friday, January 25, 2013 at 11:35am

Science
1. How many chromosomes do human sex cells have? (1 point) 22 43 46 23 2. The actual genetic makeup of an organism for a particular trait is called the ______. The physical characteristic that trait gives the organisms is called the ______. (1 point) genotype; phenotype genome...
Friday, January 25, 2013 at 1:46am

physical
An asteroid in an elliptical orbit about the sun travels at 3.9 106 m/s at perihelion (the point of closest approach) at a distance of 3.7 108 km from the sun. How fast is it traveling at aphelion (the most distant point), which is 8.6 108 km from the sun?
Thursday, January 24, 2013 at 10:36pm

phy
Tinny insects such as mosquitoes can seat on the surface of water. Which physical principle makes this possible?
Thursday, January 24, 2013 at 10:09pm

math
is eating an apple a physical change?
Thursday, January 24, 2013 at 6:55pm

math
is eating an apple a physical change?
Thursday, January 24, 2013 at 6:48pm

math
is eating an apple a physical change
Thursday, January 24, 2013 at 6:33pm

History
Are these right? What approach did European settlers in America often take toward their physical enviroment? ---Mostly the eviroment was something to exploit, trees became lumber, land became developed land. What was the goal of the erie canal project? ---To connect the great ...
Wednesday, January 23, 2013 at 2:50pm

Physical Science 8th grade
How does metallic bonding contribute to Luster, Heat conductivity, Ductability, and malleability?
Tuesday, January 22, 2013 at 9:21pm

math
What vocabulary term causes iron to rust (Evaporation, condensation, chemical change or physical change)?
Tuesday, January 22, 2013 at 7:37pm

Intro to Physical Science
A 3-kg stone is dropped from height of 100 m. Find its kinetic and potential energies when it is halfway to the ground.
Tuesday, January 22, 2013 at 4:07pm

physical
A wheel has radius of 0.25 m rotating at 2.08 rad/s. What is the tangential speed of a particle at its edge
Tuesday, January 22, 2013 at 2:30pm

physical sciences
two forces of 5n and 7n respectively act on an object. What will the resultant of the two vectors be at maximum??
Tuesday, January 22, 2013 at 2:32am

Physical Science
The distance from earth to the sun is 1.5x10 to the 11th power minutes and light travels at a speed of 3.0x10 to the 8th power m/s. How long does it take sunlight to reach the earth? Give answer in minutes and seconds.
Monday, January 21, 2013 at 9:26pm

physical education
what is a literature review?
Saturday, January 19, 2013 at 7:36pm

physical science
If you dissolve 25.0g og sugar in 150cubic cm of water, what is the concentration in g/cm3 g/10cm3 g/10cm3
Saturday, January 19, 2013 at 3:47pm

Stadistics
Select the most appropriate study design for each of the following questions. (Note: All study design options may not be used and each design option can be used more than once. 1. A study is done to examine the association between a mother’s education and risk of a ...
Saturday, January 19, 2013 at 10:29am

Microbiology
Discuss some of the physical and chemical factors involved in the composition, and in the preparation, of a culture medium. Nutrient ingredients: ________________________________________​___________________ ___________ pH and buffering: ...
Friday, January 18, 2013 at 9:40pm

BUSINESS
You are the owner of a mid-size business that sells medical devices to hospitals, clinics, and physicians. Your products include implantable devices (pacemakers) and equipment used for therapeutic applications such as dialysis, monitoring of blood sugars, and physical therapy ...
Friday, January 18, 2013 at 12:49am

Please help -biology
why does water and hydrogen peroxide have different chemical and physical properties
Thursday, January 17, 2013 at 7:37pm

Biology
why does water and hydrogen peroxide have different chemical and physical properties
Thursday, January 17, 2013 at 7:34pm

Biology
why does water and hydrogen peroxide have different chemical and physical properties
Thursday, January 17, 2013 at 7:12pm

physical science(chemistry)
Why can chemical methods not be used to determine the reaction rate at different stages of the reaction?
Thursday, January 17, 2013 at 3:14pm

physical sciences (motion in two dimensions)
John stand at the top of a 30m building. He throws a stone upwards with a speed of 5m/s. Calculate. (1)how long the stone is in the air. (2)the maxi mum height the stone reaches the ground?
Thursday, January 17, 2013 at 2:14pm

PHYSICAL SCIENCE
TWO FORCES OF 5N AND 7N RESPECTIVELY ACT ON AN OBJECT.WHEN WILL THE RESULTANT OF THE TWO VECTORS BE AT A MAXIMUM?
Thursday, January 17, 2013 at 12:14pm

Physical sciences
What is the solvent of a cup of tea in homogeneous
Thursday, January 17, 2013 at 12:10pm

Chemistry
What are the physical propertise of Air
Thursday, January 17, 2013 at 8:38am

7th grade science ASAP
1. How many chromosomes do human sex cells have? (1 point) 22 43 46 23 2. The actual genetic makeup of an organism for a particular trait is called the ______. The physical characteristic that trait gives the organisms is called the ______. (1 point) genotype; phenotype genome...
Wednesday, January 16, 2013 at 8:55pm

7th grade science
1. How many chromosomes do human sex cells have? (1 point) 22 43 46 23 2. The actual genetic makeup of an organism for a particular trait is called the ______. The physical characteristic that trait gives the organisms is called the ______. (1 point) genotype; phenotype genome...
Wednesday, January 16, 2013 at 8:21pm

7th grade science ms sue please
1. How many chromosomes do human sex cells have? (1 point) 22 43 46 23 2. The actual genetic makeup of an organism for a particular trait is called the ______. The physical characteristic that trait gives the organisms is called the ______. (1 point) genotype; phenotype genome...
Wednesday, January 16, 2013 at 8:17pm

6th grade s.s forgot textbook in locker!!!!
Need help immediatly!!! If someone already posted please still post! And I'm not doing this becuze I'm lazy but becuze I forgot my textbook in my locker and there's nothing on the internet to help!!! TOPIC: NORTHERN EUROPE 1.What river makes london a center for ...
Wednesday, January 16, 2013 at 6:44pm

health
1. Which is an emotion that people often use to protect themselves? (1 point) Happiness Sadness Anger Grief 2. Which statement is NOT true? (1 point) Some people do not have stress Stress is normal and can be positive or negative Over a long period of time, stress can harm ...
Wednesday, January 16, 2013 at 6:17pm

statistics
Select the most appropriate study design for each of the following questions. (Note: All study design options may not be used and each design option can be used more than once. 1. A study is done to examine the association between a mother’s education and risk of a ...
Tuesday, January 15, 2013 at 1:46am

Pre-AP physical science
What is the best way to set-up my science fair project that is 40% of my 2nd semester grade and credits ?? A little lost
Monday, January 14, 2013 at 6:24pm

PHYSICAL
A SIMPLE MACHINE PRODUCE 25 JOULES, WHAT IS THE OUTPUT WORK FOR EVERY 50 JOULES OF INPUT WORK. WHAT IS THE EFFICIENCY OF THIS MACHINE?
Sunday, January 13, 2013 at 5:26pm

Python Programming
We have created a set of data values that sample a function y(x). The sample points are stored in two arrays: xVals and yVals. These represent measurements of a physical process that is subject to noise so that if a is the i'th entry of xVals (i.e. a = xVals[i]) then ...
Sunday, January 13, 2013 at 2:50am

med. terminology
i am having some trouble, i have found some of the mistake but seem like i cant finf the rest: CHIEF COMPLAINT: This 53-year-old man visited the outpatient clinic for dyspnea and recurrent coughing. HISTORY OF PRESENT ILLNESS: This patient has a long history of Chronic ...
Saturday, January 12, 2013 at 11:59pm

7th grade health please
1. The process of talking directly to the other person to resolve a conflict (1 point) conflict negotiation assault compromise 2. Forced sexual intercourse (1 point) gang assault rape neglect 3. A disagreement between people with opposing viewpoints, interests, or needs (1 ...
Friday, January 11, 2013 at 7:15pm

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

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