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April 19, 2014

Homework Help: Physical Education

Recent Physical Education Questions

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physical science
What physical quantities are governed by the quantum numbers of an atomic electron?.
Friday, March 22, 2013 at 11:05pm

physical
consider the vertical hf=hi+Vsin40*t-4.9 t^2 consider the horrizontal 10=Vcos40 t V=10/cos40t put that in the first equation for V, then solve for t (notice it is a bit of algebra). have a pad of paper handy. Then after you have t, V=10/tcos40
Friday, March 22, 2013 at 9:14pm

physical
A basketball player who is 2.0m tall is standing on the floor 10.0m from the basket,If he shoots the ball at a 40.0¤ angle witi the horizontal,at what initial speed must he throw so that it goes through the hoop without striking the backboard?The basket height is 3.05 m.
Friday, March 22, 2013 at 7:54pm

physical science
Why don't you try it?
Friday, March 22, 2013 at 7:05pm

Physical science
Help Please . Aisha drops an antacid tablet in water and times how long it takes to dissolve. Which of the following will decrease the reaction rate? A.increasing water temperature B.decreasing water temperature C.using more water
Friday, March 22, 2013 at 6:49pm

physical science
A. increasing water temperature B decreasing water temperature C.using more water
Friday, March 22, 2013 at 6:48pm

physical science
None of them.
Friday, March 22, 2013 at 6:42pm

physical science
Help please. Aisha drops an antacid tablet in water and times how long it takes to dissolve. Which of the following will decrease the reaction rate?
Friday, March 22, 2013 at 6:29pm

Science
Are compounds chemical or physical changes of matter?
Friday, March 22, 2013 at 11:48am

Physical Science
How do you turn, or stop?
Thursday, March 21, 2013 at 9:33pm

Physical Science (Ms. Sue)
A smooth surface is not actually smooth; it may have many microscopic bumps on its surface. Because on the molecular level, they are not smooth. or just search it up on google. it has a bunch of good answers
Thursday, March 21, 2013 at 9:26pm

Physical Science (Ms. Sue)
Look at it under a microscope. There is nothing that is "smooth"
Thursday, March 21, 2013 at 9:25pm

Physical Science (Ms. Sue)
Why does some friction occur with seemingly smooth surfaces?
Thursday, March 21, 2013 at 9:05pm

Physical Science
How is friction involved in sledding and skiing?
Thursday, March 21, 2013 at 9:01pm

physical science
d).magnitude and direction of the sandbag's velocity..solution=vf=vi+a(change time)=0=5+(9.8)(3)=34.4 m/seconds
Thursday, March 21, 2013 at 5:12am

physical science
maximum height reached by the sand bag is..change in y=(vf+vi/2).change in time..solution=(0+5/2)3=(2.5)(3)=7.5+60=​67.5m
Thursday, March 21, 2013 at 5:07am

physical science
A hot air balloon is rising upwards at a constant velocity of 5 m/s . When the balloon is 60 m above the ground , a sand bag is released from it and allowed to free fall . Ignore the effect of air resistance and assume that the balloon continues to move with the same constant ...
Thursday, March 21, 2013 at 3:07am

Physical sciences
What is the universal law?
Thursday, March 21, 2013 at 2:34am

physical
An electric field with a magnitude of 3.50 kN/C is applied along the x axis. Calculate the electric flux through a rectangular plane 0.350 m wide and 0.7 m long assuming that (a) the plane is parallel to the yz plane; (b) the plane is parallel to the xy plane; (c) the plane ...
Wednesday, March 20, 2013 at 4:29am

12Chemistry
I would put a lot of things in that category. Pharmacy, of course, but also dentists (those glues to make crowns stick among other things), paint chemists (both in formulations and stick to metal/wood. laminate surfaces, etc), and on and on into the night. Of course there is ...
Tuesday, March 19, 2013 at 10:53pm

Government
I would hit the legality issue hard. A law firm could not refuse to hire someone on the basis of his/her physical disability.
Tuesday, March 19, 2013 at 7:27pm

Government
You could point out that physical abilities have nothing to do with the practice of law. You could point that it's illegal to discriminate on the basis of physical disabilities. Check these sites. http://www.dol.gov/odep/pubs/fact/laws.h​tm http://www.dol.gov/odep/
Tuesday, March 19, 2013 at 6:59pm

Government
Yes it is for those physical disabilities or mobility problems. I am just having trouble as to how i am supposed to convince others to support this proposal. If this bill were to be passed then those with disabilities would have a better chance as being chosen as lawyers. The ...
Tuesday, March 19, 2013 at 6:45pm

Government
You should make it clear that for this purpose, disabilities mean physical disabilities or mobility problems. I assume you don't mean mental or emotional disabilities.
Tuesday, March 19, 2013 at 6:42pm

chemistry
Interesting question and interesting point. I think the problem is one of definition. Phase is defined as a region of space in which all of the physical and chemical properties are the same. That definition means oil and H2O are separate phases since the properties (density, ...
Tuesday, March 19, 2013 at 2:24pm

Physical Science
7758030
Monday, March 18, 2013 at 5:07pm

geography
Look at the physical geography of Bolivia. Colombia resources: http://www.indexmundi.com/colombia/natur​al_resources.html I agree with your other answers.
Monday, March 18, 2013 at 12:01pm

Physical Science
convection.
Monday, March 18, 2013 at 10:10am

Physical Science
convection.
Monday, March 18, 2013 at 10:10am

Physical Science
The transfer of heat that takes place because of the density difference in fluids is
Monday, March 18, 2013 at 9:54am

SOC 313
1. Motor and perceptual consequences of brain damage affect: (Points : 1) visual-spatial relations; vision and hearing; and bowel and bladder function memory; attention and concentration; and judgment speech and language personality change and affective response 2. Stephanie ...
Sunday, March 17, 2013 at 9:01pm

physical science
A 150-L water heater is rated at 8 kW .If 20 percent of its heat escapes, how long does the heater take to raise the temperature of 150 L of water from 10C to 60C?
Saturday, March 16, 2013 at 4:38am

Physical science
How to draw 5 kg block on an inclined plane that isat 40 degrees to the horizontal?
Friday, March 15, 2013 at 5:11pm

physical science
See previous post
Friday, March 15, 2013 at 3:56pm

physical science
T = Time in seconds. h = Ht above gnd. in meters. (T,h). (0,97.5) (0.51,98.8) (1.01,97.5) (5,0).
Friday, March 15, 2013 at 3:50pm

Language Arts
14. correct 15. correct 16. while it mentions Raja's emotions the whole group is only described as under a physical challenge. 17. To persevere is to stay on task. 18. At the beginning he is afraid, by the end he has developed more confidence. 19. While his father had a ...
Friday, March 15, 2013 at 2:09pm

physical science
V^2 = Vo^2 + 2g*h h = (V^2-Vo^2)/2g h = (0-25)/-19.6 = 1.28 m. = Max. ht. above bldg. V = Vo + g*t Tr = (V-Vo)/g = (0-5)/-9.8 = 0.51 s. = Rise time. Tf1 = Tr = 0.51 s. = Time to fall back to edge of bldg. Tf2 = 5 = - Tr - Tf1=5-0.51 - 0.51=3.98 s. Hb = Vo*t + 0.5a*t^2 Hb = 5*3...
Friday, March 15, 2013 at 1:00pm

health Ms. Sue please
1. The body's functions are slowed when alcohol reaches where? (1 point) The stomach The heart The liver The brain 2. Which statement is NOT true? (1 point) Regular use of alcohol can lead to addiction. Alcoholism can be cured. Someone cannot cause someone else to drink. ...
Thursday, March 14, 2013 at 9:51pm

physical sicence
if a gives a force 2kg object an acceleration 1.6,/s2 what does the smae force give to an object of 4kg
Thursday, March 14, 2013 at 7:53pm

physical science
When forward velocity is 40 m/s, the downward velocity is zero.
Thursday, March 14, 2013 at 4:35pm

physical science
a bot throws a cricket ball witg an initial velocity of 5m.s from the edge of a tall building.it passes the edge of the building on its way down and strikes the ground below after 5seconds (neglect effects of friction. question1...how does the acceleration of the ball moving ...
Wednesday, March 13, 2013 at 2:51pm

physical science
a bot throws a cricket ball witg an initial velocity of 5m.s from the edge of a tall building.it passes the edge of the building on its way down and strikes the ground below after 5seconds (neglect effects of friction. question1...how does the acceleration of the ball moving ...
Wednesday, March 13, 2013 at 2:46pm

physical science
What difference is there between the downward velocities of the skydiver who jumped out of the helicopter (with no forward velocity) and the one who jumped out of a plane (with a forward velocity of 40 m/s)?
Wednesday, March 13, 2013 at 12:11am

Physical science
Incomplete,
Tuesday, March 12, 2013 at 10:20pm

Physical Science
We divade 32 by 0,1
Tuesday, March 12, 2013 at 3:33pm

Physical chemistry 2
50 mL x 0.02M = 1 mmol HAc. 10 mL x 0.1M = 1 mmol NaOH. HAc + NaOH ==> H2O + NaAc 1 mmol 1mmol = e.p. So you have a solution of Ac^- in aqueous solution. The (Ac^-) is 1 mmol/60 mL = about 0.017M but you nee to do it more accurately. ........Ac^- + HOH ==> HAc + OH^- I...
Tuesday, March 12, 2013 at 12:58am

Physical chemistry 2
50 ml of 0.02M acetic acid is titrated with 0.1M NaOH.Calculate the pH of the solution when 10ml of NaOH is added
Tuesday, March 12, 2013 at 12:41am

Physical Science
How do you calculate the number of grams of ice at 32 degrees celsius that can be melted by 1g of steam?
Monday, March 11, 2013 at 12:45am

Physical Science
How do you get the velocity of a roller coaster when you are only given 250.0kg and 2.000x10^4 Joules
Monday, March 11, 2013 at 12:41am

Physical Science
(g steam x heat vap) + (mass ice x heat fusion) + [(mass steam H2O x specific heat x (Tfinal-Tinitial)] + [mass melted ice x specific heat x (Tfinal-Tinitial)]= 0 I don't know what units you ae using; you substitute them. (1g x -heat vap) + (xgrams x heat fusion) + [(1g x ...
Monday, March 11, 2013 at 12:07am

Physical Science
q = mass ice x heat fusion.
Sunday, March 10, 2013 at 11:46pm

English
These sentences would work with this question: What is he like? He is friendly and outgoing. He is a very good student and spends lots of time in the library. He is a very good athlete. In other words, the answers need to focus on his personality and character, not his looks. ...
Sunday, March 10, 2013 at 11:17pm

Physical Science
A 1.00 kg block of ice at zero degrees celsius is added to a picnic cooler. How much heat will the ice remove as it melts to water at zero degrees Celsius?
Sunday, March 10, 2013 at 11:05pm

Physical Science
Calculate the number of grams of ice at 32 celsius that can be melted by 1g of 100 degrees celsius steam
Sunday, March 10, 2013 at 11:03pm

Physical science
[mass metal x specific heat metal x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial)] = 0 Substitute and solve for specific heat metal.
Sunday, March 10, 2013 at 10:52pm

Physical science
a 5.0 x 10^1g piece of a metal in thermal equilibrium with boiling water is removed and placed in 1.0 x 10^2g of a cooling water bath (specific heat= 1.00cal/g degrees celsius at 20.0 degrees Celsius . The final temperature of metal and the water bath is 28.0 degrees celsius ...
Sunday, March 10, 2013 at 10:19pm

Physical Science
A 250.0 kg roller coaster has 2.000 x 10^4 Joule of potential energy at the top of the hill , if the track is frictionless , what is the coasters velocity at the bottom of the hill?
Sunday, March 10, 2013 at 10:06pm

Physical science
Look just below here
Sunday, March 10, 2013 at 9:55pm

Physical science
(1/2) m v^2 = (1/2)(800)(400) = 16 * 100 * 100 = 160,000 Joules
Sunday, March 10, 2013 at 9:54pm

Physical science
How much work is required to stop a car that is 800.0 kg car that is traveling at 20.0 m/s?
Sunday, March 10, 2013 at 9:53pm

Physical science
How much work is required to stop a car that is 800.0 kg car that is traveling at 20.0 m/s?
Sunday, March 10, 2013 at 9:50pm

physical Science
The Mass Of A Minibus with The Driver is 1500 kg.the Driver Is Moving At A Speed Of 30 m.s When He Notices That The traffic light Ahead Have turned To red.he Applies A Force Of 9000N on the brake pedal. A)calculate his deceleration if the taxi is empty B)how far must he be ...
Sunday, March 10, 2013 at 5:51pm

Physical science
For magnitude of the force is 67n and force of friction is 34n
Sunday, March 10, 2013 at 3:10pm

Physical Science
How can i calculate magnitude of the force and also the force of friction on w
Sunday, March 10, 2013 at 3:00pm

science
name two physical properties of an object about which you can gather qualitative data
Sunday, March 10, 2013 at 2:34pm

Quantum M.
sound propagates through physical media such as air, water, or steel. Sound does not travel through mathematical vector spaces.
Sunday, March 10, 2013 at 10:47am

Physical sciences
See your earlier post.
Saturday, March 9, 2013 at 12:26am

Physical sciences
See your earlier post.
Saturday, March 9, 2013 at 12:25am

Physical sciences
See your earlier post.
Saturday, March 9, 2013 at 12:25am

Physical sciences
reaction electromagnetic waves electric field capacitor resistor parallel Did you know that I just googled the main words of the question, obtained a site to read, and found each of the answers. You could do the same thing.
Saturday, March 9, 2013 at 12:24am

Physical sciences
1 term question 1 if object a exerts a force on onject b,object b exerts an equal force on object a,but in the opposite direction 2 waves in which the particles vibrate in a direction perpendicular to the direction in which the wave energy is propagated 3 the force per unit ...
Friday, March 8, 2013 at 11:06pm

Physical sciences
1 term question 1 if object a exerts a force on onject b,object b exerts an equal force on object a,but in the opposite direction 2 waves in which the particles vibrate in a direction perpendicular to the direction in which the wave energy is propagated 3 the force per unit ...
Friday, March 8, 2013 at 11:05pm

Physical sciences
1 term question 1 if object a exerts a force on onject b,object b exerts an equal force on object a,but in the opposite direction waves in which the particles vibrate in a direction perpendicular to the direction in which the wave energy is propagated 3 the force per unit ...
Friday, March 8, 2013 at 11:04pm

Physical sciences
1 term question 1 if object a exerts a force on onject b,object b exerts an equal force on object a,but in the opposite direction waves in which the particles vibrate in a direction perpendicular to the direction in which the wave energy is propagated 3 the force per unit ...
Friday, March 8, 2013 at 11:01pm

physical
What are we trying to calculate? We have mass and velocity, do you want force? or something else?
Friday, March 8, 2013 at 11:37am

physical
a car a starts from rest 305kg increase its equal to 10m/s in 2 second
Friday, March 8, 2013 at 11:33am

Social Studies
How did Nubia's physical features affect civilization in the region?
Thursday, March 7, 2013 at 8:42pm

physical
You have more information than you need to answer the question. Multiply 10^-7 W/m^2 by the eardrum area and 8 seconds. That will be the received energy in Joules.
Thursday, March 7, 2013 at 6:00pm

physical
Suppose a sound of frequency 1200 Hz is emitted from a speaker 15 meters away from you. At YOUR location, the intensity is 1.0E-7 W/m2. Let me assume your eardrum has area 3E-5 m2. If the sound continues for 8 seconds, what total amount of energy is received by your ear?
Thursday, March 7, 2013 at 5:47pm

Management for Organizations
Would someone PLEASE check my answers..THANKS in advance!!! 1. Employee inventories and skills inventories are strategies for ________________________. (D) job design promoting-from-within external recruiting human resource planning 2. Which one of the following choices is not...
Thursday, March 7, 2013 at 11:40am

Please help check physical science!
1,2,3 OK 4: eh? how can a wave be a wavelength? 4B 5A crests don't actually go anywhere. The medium moves back and forth, causing crests and troughs.
Thursday, March 7, 2013 at 10:19am

Please help check physical science!
Please help check my answers I really want to make a 100%! 1. A mechanical wave moves through a medium, which can be (1 point) A. a liquid. B. a solid. C. a gas. D. all of the above <-- This one 2. Which type of kind of wave causes the medium to vibrate only in a direction ...
Wednesday, March 6, 2013 at 10:26pm

Physical Science
630J
Wednesday, March 6, 2013 at 10:24pm

English
Request for feedback on CAUSE essay. Please give input on below essay: “I ran three miles, staggered into the lobby, and took the elevator to my apartment, no use overdoing this exercise junk.” Janet Evonovich About 40% of Americans report that they never exercise, ...
Wednesday, March 6, 2013 at 3:29pm

Physical Science
Assume that the two cars stick together and appply tht law of conservation of momentum. 4000*30 -2000*45 = 6000*Vfinal Vfinal = (1.2*10^5 - 0.9*10^5)/6000 = 5.0 mph (in the original drection of the 4000 lb car). I did not have to convert mass to slugs or velocities to ft/sec, ...
Wednesday, March 6, 2013 at 5:06am

Physical Science
A sedan weighing 4000 pounds travelling at 30mph collides head on with a compact car weighing 2000 pounds and travelling in the opposite direction at 45 mph. What is the resultant velocity of the combined vehicles?
Wednesday, March 6, 2013 at 3:34am

Physical science
..Not accelerating, because the net force is zero.
Wednesday, March 6, 2013 at 1:38am

Science
The first two choices are wrong because force and work are two different physical quantities. The fourth choice depends upon the amount of friction. The third choice is correct.
Wednesday, March 6, 2013 at 1:27am

Physical science
When a crate slides down an incline at a constant velocity it is
Tuesday, March 5, 2013 at 10:00pm

chemistry
is putting gas in a vehicle a physical or chemical reaction
Tuesday, March 5, 2013 at 8:16pm

General Biology
Darwin used which of the following terms to describe the process by which those individuals that possess superior physical, behavioral, or other attributes are more likely to pass their traits to the next generation?
Tuesday, March 5, 2013 at 2:07pm

physical
Hmmm. So you copy and paste from our answers and give it to your teacher as your work? Spiritual Health: The state of an individuals search for principles worth of veneration, a coping structure in seeking purpose and meaning in life. A person who has good spiritual health ...
Tuesday, March 5, 2013 at 6:28am

physical
Hey everyone... hoping I can get an answer soon... I have a PD/H/PE homework assignment on which we have to create an collage on Physical, Spiritual, Emotional, Social and Mental health. I am stuck on a definition for spiritual health, me not being a very big know-it-all in PD...
Tuesday, March 5, 2013 at 12:31am

physical chemistry
And what is deltaH4?
Monday, March 4, 2013 at 9:12pm

physical chemistry
This question is about a lab called Heats of Ionic Reaction in my Physical Chemistry class. I need to know why there should be a large percentage error in deltaH4
Monday, March 4, 2013 at 8:16pm

physical science
Boyle’s law states that if you squeeze a fixed amount of a gas into a smaller volume, the pressure will increase. Explain why?
Monday, March 4, 2013 at 4:55pm

English
The assignment is to write a CAUSE paper on an addiction. There is to be three topic sentences with support, a thesis, an introduction and a conclusion. I obviously have left of my sources, and need to insert them. I would really appreciate some feedback and some help ...
Monday, March 4, 2013 at 2:22pm

Psychology
We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though. However, this information might help. An independent variable is the potential stimulus or ...
Monday, March 4, 2013 at 1:26pm

physical
85J
Monday, March 4, 2013 at 11:12am

physical science
Unless you have restated Boyle's Law as your post, you have answered the post by restating the question.
Sunday, March 3, 2013 at 3:04pm

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