Recent Physical Education Questions
P2=P1*T2/T1 so change the temps to Kelvins, and calculate P2
Saturday, July 21, 2012 at 9:35pm
A tire contains air at a pressure of 2.8 bar at 10C. If the tires volume is unchanged, what will the air pressure in it be when the tire warms up to 35C as the car is driven?
Saturday, July 21, 2012 at 7:16pm
Reflect on how your perceptions of physical education have changed based on your understanding of its evolution.
Thursday, July 19, 2012 at 5:13pm
((V+Vr)/(V+Vs))*Fs = 1760 Hz. V = 343m/s = Velocity of sound in air. Vr=27.7m/s=Velocity of receiver(motorist). Vs = Velocity of source(Police car). a. ((343+27.7)/(343+Vs))1830 = 1760 ((370.7)/(343+Vs))1830 = 1760 678381/(343+Vs) = 1760 Cross multiply: 1760((343+Vs) = 678,381...
Tuesday, July 17, 2012 at 8:48pm
Almost anything will fit here. Think of the three or four ways a magnet CAN be made; the other jillion ways in the universe will fit for the right answer.
Tuesday, July 17, 2012 at 12:01am
a magnet connot be made by
Monday, July 16, 2012 at 11:14pm
Two identical half-open pipes each have a fundamental frequency of 450 Hz. What percentage change in the length of one of the pipes will cause a beat frequency of 13.0 Hz when they are sounded simultaneously? Assume the speed of sound in air is 342 m/s.
Monday, July 16, 2012 at 4:58pm
You are traveling in a car toward a hill at a speed of 42.1 mph. The car's horn emits sound waves of frequency 251 Hz, which move with a speed of 343 m/s. a) Determine the frequency with which the waves strike the hill. b) What is the frequency of the reflected sound waves...
Monday, July 16, 2012 at 4:58pm
You are driving along a highway at 27.7 m/s when you hear a siren. You look in the rear-view mirror and see a police car approaching you from behind with a constant speed. The frequency of the siren that you hear is 1830. Hz. Right after the police car passes you, the ...
Monday, July 16, 2012 at 4:57pm
You are playing a note that has a fundamental frequency of 466.16 Hz on a guitar string of length 59.9 cm. At the same time, your friend plays a fundamental note on an open organ pipe, and 4.0 beats per seconds are heard. The mass per unit length of the string is 1.85 g/m. ...
Monday, July 16, 2012 at 4:57pm
Two people are talking at a distance of 2.49 m from where you are, and you measure the sound intensity as 1.47 · 107 W/m2. Another student is 4.79 m away from the talkers. What sound intensity does the other student measure?
Monday, July 16, 2012 at 4:55pm
Concrete words have a ________________, a corresponding person or object that you can see, touch, or otherwise experience with your physical senses
Sunday, July 15, 2012 at 7:15pm
Adolescence (from Latin: adolescere meaning "to grow up") is a transitional stage of physical and psychological human development generally occurring between puberty and legal adulthood (age of majority). The period of adolescence is most closely ...
Saturday, July 14, 2012 at 11:04pm
Not necessarily. A psychotherapist is a person with degrees in psychology who counsels people. A therapist can be a psychotherapist, a speech therapist, a physical therapist, social worker, or an occupational therapist.
Saturday, July 14, 2012 at 10:52pm
You need to master this. Atomic mass Mg+ 2*(atomicmassCl) google "periodic table"
Friday, July 13, 2012 at 8:30pm
What is the molecular mass of magnesium chloride,MgCl2?
Friday, July 13, 2012 at 7:47pm
what is the difference between a balance and a graduated cylinder
Thursday, July 12, 2012 at 4:27pm
Centripetal acceleration a=v²/R=10²/58 = 1.72 m/s² 9.8 ....100% 1.72.....x% x=1.72100/9.8 =17.6%
Thursday, July 12, 2012 at 1:35pm
A person drives a car around a circular cloverleaf with a radius of 58 m at a uniform speed of 10 m/s. ) Compare this answer with the acceleration due to gravity as a percentage
Thursday, July 12, 2012 at 1:15pm
yes i mean the above equation which u have written P=A+B/T-C/D+V. The expression which shows how and which of the base quantities represent the dimensions of a physical quantity is called the dimensional formula.
Wednesday, July 11, 2012 at 7:12am
Principles of Management - Effective Management
Please double check my answers please! 1. a team manager is resolving the conflicts that exist among the members of his team in an organization. this is an example of: a. planning b. organizing c. leading d. controlling answer C 2. a manager at a grocery store is trying to ...
Tuesday, July 10, 2012 at 10:16am
Fill in the blanks(which are numbered ) with t given words: A. Obstruction B. Cannot use hands C. Rules D. Conclusion E. Shielding the ball ___36___ A. Number of players 1.Eleven to a side B. Touching the ball 1. __37___ 2. May use hand to drop ball a. Cannot advance ball ...
Sunday, July 8, 2012 at 7:19pm
1 m = 3.3 Ft. V = L*W*h. V = 3.3*20 * 3.3*7 * 3.3*2 = 10,062 Ft^3
Saturday, July 7, 2012 at 9:44pm
Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 61 male firefighters are ...
Saturday, July 7, 2012 at 4:21pm
Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of some male firefighters ...
Saturday, July 7, 2012 at 3:35pm
Max F=3Fₒ=310=30lb (all forces act along the same direction) Min F=0 (the forces make angles 120º)
Friday, July 6, 2012 at 4:53pm
Time of the flight to the top point where v=0 is v = vₒ - gt => 0= vₒ - gt, t=vₒ/g, The large g the smaller t. Since the time upward = time downwards, the time of the flight at the Earth is smaller than the time at the Venus.
Friday, July 6, 2012 at 4:50pm
Geography - URGENT!
It has been said that Eastern Europe is a political region more than a physical region. Would you agree or disagree with this statement? You must provide a solid argument for your position. My answer: Eastern Europe has only been a political region since after World War II. ...
Friday, July 6, 2012 at 10:16am
Vfinal=Vinitial+at solve for Vinitial
Thursday, July 5, 2012 at 11:01pm
change time to seconds. Then seconds to hours. change mile to km. avgspeed=distance/time=1mile/(2min35sec) or = 1mile/(2min+35sec)*1min/60sec= =1mile/(2*60+35)sec*3600sec/hr =1mile*1.609 Km/mile = 1.609km/155sec*3600sec/hr =about less than 40km/hr.
Thursday, July 5, 2012 at 10:57pm
The acceleration of gravity on the surface of Venus is 8.9 m/s2. Would a ball thrown upward on Venus return to the ground sooner or later than a ball thrown upward with the same speed on the earth?
Thursday, July 5, 2012 at 10:52pm
. The brakes of a car are applied to give it an acceleration of -3 m/s2. The car comes to a stop in 5 s. What was its speed when the brakes were applied?
Thursday, July 5, 2012 at 10:52pm
. Three forces, each 10 lb, act on the same object. What is the maximum total force they can exert on the object? The minimum total force?
Thursday, July 5, 2012 at 10:51pm
A horse galloped a mile in 2 min 35s. What was its average speed in km/h?
Thursday, July 5, 2012 at 10:49pm
. A swimming pool is exactly 20m long, 7m wide, and 2m deep. What is its volume in cubic feet to 3 significant figures?
Thursday, July 5, 2012 at 10:48pm
mass - the measure of inertia
Wednesday, July 4, 2012 at 4:46pm
what physical quantity does full glass water have over empty glass that cause it to resist change in motion over empty one?
Tuesday, July 3, 2012 at 11:59am
At the beginning of 2012, the Jeater Company had the following balances in its accounts: Cash $4,300 Inventory 9,000 Common Stock 10,000 Retained Earnings 3,300 During 2012, the economy experienced the following events: 1. Purchased inventory that cost $2,200 on account from ...
Monday, July 2, 2012 at 2:01pm
0.1M weak acid at 27 degree celcius has osmotic pressure of 2.5 atm. find % dissociation of acid?
Monday, July 2, 2012 at 6:33am
Yes. But it is less than the weight of the ship
Sunday, July 1, 2012 at 3:30am
Saturday, June 30, 2012 at 8:55pm
what generally happens to atmospheric pressure on a windy day
Saturday, June 30, 2012 at 8:28pm
does a sunken ship sitting on the ocean floor have a buoyant force on it.
Saturday, June 30, 2012 at 8:26pm
Physical Geography PLEASE CHECK & HELP WITH #2!
The following questions are based on the Mt. Dome, California, quadrangle (Figure 33-2 found on page 228 of the Laboratory Manual; enlarged to scale 1:48,000; contour interval 40 feet) and the stereogram of the same region (Figure 33-3 found on page 229 of the ...
Saturday, June 30, 2012 at 11:23am
It is the same as the original amount of water.
Friday, June 29, 2012 at 1:57am
a certain amount of water freezes and the resulting weight of the ice is
Thursday, June 28, 2012 at 10:57pm
This is to test your knowledge of "adverbs." "Adverbs" are words that are used for the purpose of telling "HOW" an action was done, in what way. For example, he walked "slowly." HOW did he walk? "Slowly." She screamed "...
Wednesday, June 27, 2012 at 9:11am
1. A Correct 2. D Correct 3. B Correct 4. B A PAGES 92,93 5. C B PAGES 35,36 6. C Correct 7. D Correct 8. C D PAGE 88 9. C Correct 10. B Correct 11. D Correct 12. C Correct 13. C Correct 14. A B PAGE 93 15. D Correct 16. C Correct 17. A Correct 18. D Correct 19. C Correct 20...
Tuesday, June 26, 2012 at 10:19pm
Tuesday, June 26, 2012 at 7:08pm
Explain the difference between the everyday use of the word "work" and the physical (physics related)use of the word "work".How is energy related to work?
Tuesday, June 26, 2012 at 11:28am
"Anthropology is the study of humans, past and present. To understand the full sweep and complexity of cultures across all of human history, anthropology draws and builds upon knowledge from the social and biological sciences as well as the humanities and physical ...
Monday, June 25, 2012 at 7:38pm
Suppose you are playing ice hockey in the middle of a totally frictionless frozen pond. How can you move yourself to the edge of the pond ?
Sunday, June 24, 2012 at 6:07pm
Sunday, June 24, 2012 at 4:32pm
there is current of 0.65a through a light bulb in a 120v circuit what is the resistance of this light bulb?
Sunday, June 24, 2012 at 2:04pm
Since this essay is a "common essay" and will be seen by all of the schools to which you apply, it is a very important essay. It can determine whether you get into any of your favorite schools. I take your essay seriously. This response comes from a lawyer who wrote ...
Sunday, June 24, 2012 at 12:33am
I disagree with your first answer, but agree with your second answer.
Friday, June 22, 2012 at 5:45pm
I don't know. My doctor died from a heart attack while skiing; my dentist died of a heart attack while jogging.
Friday, June 22, 2012 at 2:41pm
All are correct -- although I don't know the statistics for # 2.
Friday, June 22, 2012 at 2:39pm
Friday, June 22, 2012 at 2:36pm
Friday, June 22, 2012 at 2:35pm
Inactivity is considered the nations most common cardiac threat. is it true
Friday, June 22, 2012 at 2:09pm
Stimulant drugs cannot cause heart attack, stroke and sudden cardiac death. its true right? High blood sugars damage all the following, except ____ 1. the circulatory system, 2. kidneys (from processing too much sugar) 3. and stomach 4. and atherosclerosis. is it 4
Friday, June 22, 2012 at 2:08pm
1. Cardiovascular disease is the number one overall killer of Americans kills more than cancer, chronic respirator disease, accidents and diabetes combined! its False right? 2. Only 25% of Americans engage in physical activity at the intensity and duration needed for ...
Friday, June 22, 2012 at 1:55pm
Motor vehicle accidents are the leading cause of death for people aged 4-33 years old. true right?
Friday, June 22, 2012 at 1:51pm
The rate of alcohol absorption is influenced by a. Body weight and emotional state. b. Gender and emotional state. c. Food intake and beverage preference. d. Speed of consumption and alcohol history. e. All of the above are correct. is it E
Friday, June 22, 2012 at 1:48pm
You're right. http://www.cdc.gov/women/lcod/
Friday, June 22, 2012 at 1:44pm
CVD is the second leading cause of death for U.S. women. flase right?
Friday, June 22, 2012 at 1:40pm
Probably it's because of multiple sex partners. http://www.cdc.gov/std/
Wednesday, June 20, 2012 at 8:27pm
why 1 in 2 Americans will have a STD in their lifetime? please help me with this I bought a used book and it doesn't have this page on it.
Wednesday, June 20, 2012 at 7:38pm
heatapplied=massglass*specificheatglass*20 look up the specific heat of glass.
Wednesday, June 20, 2012 at 6:46pm
Peers are your friends and friends of friends. They are generally about the same age and share some characteristics, I agree that colleges should have condoms available for students. I'm not sure that is included in your question.
Wednesday, June 20, 2012 at 6:19pm
10. what exactly is peers? what does it mean? 11. level of school lets say colleges?
Wednesday, June 20, 2012 at 6:11pm
I have no idea about your peers and campus. 11. What level of school? 12. I disagree with your answer. I agree with your answers for 13 and 14.
Wednesday, June 20, 2012 at 5:50pm
8. My peers are changing their sexual behavior because of AIDS. is it True 9. Condoms are not used much to prevent STDs on this campus. is it True 10. Because of AIDS it is easier for me to talk to my peers about sex. is it True 11. Schools should distribute condoms to ...
Wednesday, June 20, 2012 at 5:40pm
Wednesday, June 20, 2012 at 5:35pm
Should we also cut money for research into hypertension and heart disease? Isn't overeating also immoral?
Wednesday, June 20, 2012 at 5:35pm
7. HIV infection is not a significant risk for college students. False right?
Wednesday, June 20, 2012 at 5:30pm
6. Money for AIDS research should be cut because people get AIDS due to immoral lifestyles. if NO WHY
Wednesday, June 20, 2012 at 5:29pm
1.0 gram of glass will rise 20.0°C when _____ calories of heat are applied.
Wednesday, June 20, 2012 at 4:41pm
I disagree. Diet can play a role in stress.
Tuesday, June 19, 2012 at 1:30pm
Does Diet play a role in stress? its False right?
Tuesday, June 19, 2012 at 1:22pm
ΔPE =mgh =359.871.5 = ...
Tuesday, June 19, 2012 at 9:23am
v=vₒ-gt at the top point 0= vₒ-gt1, t1= vₒ/g =34.7/9.8=3.54 s. h= vₒt1 gt1²/2=34.73.54 - 9.83.54²/2 =61.5 m h=gt2²/2, t2=sqrt(2h/g) = =sqrt(261.5 /9.8) = 3.54 s. Time upward =...
Tuesday, June 19, 2012 at 9:21am
(1/2) m v^2 = (1/2)(.015)(450)^2 = 1519 Joules
Monday, June 18, 2012 at 7:57pm
what is the kinetic energy of a 15g bullet that traveling at 450m/s
Monday, June 18, 2012 at 7:38pm
what is change of [potential energy as result of this move of how much work is done in raising a 35kg crate a distance of 1.5m above a storeroom floor
Monday, June 18, 2012 at 5:45pm
a ball dropped off a cliff and took 3.59s to fall to the water below. neglecting air resistance how far in meters did it fall how far is it down to water
Monday, June 18, 2012 at 5:21pm
According to this site you are wrong. http://www.mayoclinic.com/health/implanon/MY01007
Monday, June 18, 2012 at 4:43pm
Which of the following methods is considered a "contraceptive implant"? a. Depo-Provera b. Lunelle c. Implanon d. Seasonale is it B
Monday, June 18, 2012 at 4:38pm
Monday, June 18, 2012 at 4:23pm
v= gt=9.83.59 =35.18 m/s
Monday, June 18, 2012 at 4:22pm
Monday, June 18, 2012 at 4:21pm
Which is a common expectation that can hurt a relationship? a. expecting your partner to change b. expecting that your partner loves you c. expecting intimacy d. expecting that you can trust your partner is it A
Monday, June 18, 2012 at 4:11pm
The transformation of love progresses in the following way: a. high levels of passion, increasing intimacy, diminished romance, enduring love. b. high levels of passion, increasing intimacy, diminished romance, breakup of relationship c. sex, passion, breakup of relationship, ...
Monday, June 18, 2012 at 4:07pm
The kinetic energy at impact will equal the potential energy at maximum height, M g H. 35 x 9.8 x 1.5 = _____. J
Monday, June 18, 2012 at 4:05pm
how much kinetic enery will the crate have as it fall and hits the floor rasing a 35kg crate a distance of 1.5m above storeroom floor
Monday, June 18, 2012 at 3:50pm
a ball was dropped off a cliff and took 3.59s to fall to the water below. neglecting air resistance how fast in m/s was the ball moving just as it hit th water
Monday, June 18, 2012 at 3:00pm
Upward motion: v=vₒ-gt at the top point 0= vₒ-gt1, t1= vₒ/g =34.7/9.8=3.54 s. h= vₒt1 gt1²/2=34.73.54 - 9.83.54²/2 =61.5 m Downward motion h=gt2²/2, t2=sqrt(2h/g) = =sqrt(261.5 /...
Monday, June 18, 2012 at 2:40pm
I don't think it's either D or B. http://dictionary.reference.com/browse/homeostasis
Monday, June 18, 2012 at 1:46pm
You're very welcome.
Monday, June 18, 2012 at 1:43pm