# Posts by TOM

Total # Posts: 1,478

physics
Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering ...

physics
Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering ...

physics
Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering ...

physics
Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa before entering ...

Psychology
difference between physiological and psychological needs. I am confused on this question I have been studing the Maslow's Hierarchy of Needs I am assuming this so If I am getting this wrong please explain to me the difference. The Maslow theory gave 5 needs they are at the...

physics
A glass window pane has an area of 3.50 m2 and a thickness of 0.600 cm. If the temperature difference between its surfaces is 27.0°C, what is the rate of energy transfer by conduction through the window? I tried using the formula P=ka[(th-Tc)/l] my answer was thirteen but ...

Psychology
I am writing a paper and am stuck on one part can some give me an idea what i am needing. paper in which you analyze the function of emotions as motive. Be sure to address the following items on your analysis: This is the part I am stuck on Analyze at lease two research ...

science
definition amorphous solid

physics
One mole of an ideal gas does 3400 J of work on its surroundings as it expands isothermally to a final pressure of 1.00 atm and volume of 22.0 L. (a) Determine the initial volume in m^3. i tried using the formula w=integral f/i pdv 3400J= -(1.00atm)(.022m^3Vf-Vi) i eneded with...

physics
One mole of an ideal gas does 3400 J of work on its surroundings as it expands isothermally to a final pressure of 1.00 atm and volume of 22.0 L. (a) Determine the initial volume in m^3. i tried using the formula w=integral f/i pdv 3400J= -(1.00atm)(.022m^3Vf-Vi) i eneded with...

physics
A sample of ideal gas is expanded to twice its original volume of 1.00 m3 in a quasi-static process for which P = áV2, with á = 2.50 atm/m6, as shown in the figure. How much work is done by the expanding gas? i tried using the eq: w=-1/3(2.50atm/m^6)(1.013x10^5...

physics
Model rocket engines are sized by thrust, thrust duration, and total impulse, among other characteristics. A size C5 model rocket engine has an average thrust of 5.26 N, a fuel mass of 12.7 g, and an initial mass of 25.5 g. The duration of its burn is 1.90 s. (a) What is the ...

physics
The melting point of helium is -269.65°C, and the boiling point is -268.93°C. I have to convert these to K I get 3.5 and 4.22 When I plug these in it saYs i am within 10% of the answer I don;t no what else to put?

injuries
A fitness professional will most likely refer a student or client to a _______ to treat tight muscles that can pull bones out of alignment

physics
The mass of the Earth is 5.98x10^24 kg, and the mass of the Moon is 7.36x 10^22 kg. The distance of separation, measured between their centers, is 3.84x10^8 m. Locate the center of mass of the Earth-Moon system as measured from the center of the Earth. I tried using the ...

chem
i am trying to find the minimum volume of hot water needed to dissolve 100 mg of salicylic acid. when i did the calculations i got 100 ml of hot water is this correct??

physics
A 68.0 kg boy and his 45.0 kg sister, both wearing roller blades face each other at rest. The girl pushes the boy hard, sending him backward with a velocity 3.70 m/s toward the west. Ignore friction. How much chemical energy is converted into mechanical energy in the girl'...

Pre Algerbra
I'm confused on this one, If n(A) = 8, then how many proper subsets are there? I came up with 255. Is this correct?

algerbra
If n(A)= 8, then how many proper subsets does A have?

Six months later, the same client comes to see you again. She shows you an advice received recently from the partnership¡¦s investment banker, Selby Bank, which suggests that the partnership should engage in some risky behaviour because it will produce a large ...

psychology
Can someone please give me an example how sense and perception and behavior are link together I am not sure if I am understanding it to good So If I am wrong please let me know. I believe they are link in how we see things is not always how are mind perceives it so when our ...

chemistry
a test liquid has a density of 1.1g/mL. when you pour some of it into a cup of water, what will happen?

physicis
if the motion of something was 120 m/s2 would it be the same value if in m/s?

?
supposee i needed to onvert 120 ms^2 to m//s how owuld i do that??

GEOMENTRY
WHAT IS THE DISTANCE BETWEEN POINTS (-5,-2)AND (6,4)

help
Estimate the power you deliver when starting to walk from a standstill, in W: & Your body radiates about 88 W in heat energy. How much energy, in J, is radiated in one hour?

physics
i was just wondering what approx is the change in PE in J when standing up from your chair and the KE when walking in J.

physics
i was just wondering what approx is the change in PE in J when standing up from your chair and the KE when walking in J.

chem urgent!!
What is the pH of the solution created by combining 12.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? i need to find the ph with HCL and then with hc2h3o2. i got 1.30 as my anser but this was wrong i multipled all these...

psychology
So is it safe to say there is really no actual theory for neurological psychology. Could I state that neurological psychology is a study on how peoples nervous system affects their behavior Biopsychologists often look at how biological processes interact with emotions, ...

psychology
What is neurological psychological theory? How did neurological psychological theory get established? I am doing a paperand can not find anything to explain this to me am i searching the wrong thing can some please help I need information to write this paper Thank you

grammar check
Please check and let me know which ones are wrong Thank you Tom 31.I had hoped the police would blame Bruce, not ___. _x_ me __ myself __ mineself __I 32.Some interviewers ____ have a clear sense of what they want in an employee, ask very tough questions. __ who _x_, who __ ...

ti83 calculator question
I was wondering if there was a way to replace a certain digit on the TI83 calculator without having to clear the whole thing and start over. For example: 123345 if i wanted to insert a 6 for the two's spot how would i do this?

psychology
is the instructor meaning the way the diagnosis someone or the theories

psychology
I would like the entire class to identify the major similarities and differences that exists between the American and European traditions of psychology. Please post a response to this message that includes at least two similarities and two differences. can some explain what ...

Math
what is greater then 3,000 and what is less then 4,000

psychology
Thank you so much

psychology
What is the realm of mind and consciousness? Could some one explain to me what Realm means in this question I do not want the answer to the question just what realm means I have look at the dictionary and still have no glue what the instructor is wanting in this question ...

Chemistry
The reduction potentials for the species involved in an electrochemical cell are as follows: M+ + e– => M is 0.20 V J+ + e– => J is 1.00 V. All solutions are 1.00 M and J+ J is connected to M+ M What is E*cell (in V)? * is a 0. It stands for E not

Chemistry
The reduction potentials for the species involved in an electrochemical cell are as follows: M+ + e– => M is 0.20 V J+ + e– => J is 1.00 V. All solutions are 1.00 M and J+ J is connected to M+ M What is E*cell (in V)? * is a 0. It stands for E not

psychology
am needing help I have a paper due on compare and contast Normal and abnormal Psychology My problem is I can not find no information on what is Normal psychology. I have found great information on abnormal psychology with no luck on normal psychology can some one please ...

math (transformations)
point (-3, 8) is on the graph y=f(x) find the new point on: y = f(x - 2) -3

Physics ***HELP***
please explain how you got the answer car A - 20m/s car B - 30m/s Assume that both cars are 5m long. Suppose that car B is 20m behind car A is attempting to overtake car A. How long will it take for car B to arrive 10m ahead of car A?

Chemistry
Yea it was a typing mistake. Thanks alot I got it correct, also the website is very helpful. Thanks again

Chemistry
1MnO4– + 8H+ + 5Fe2+ => 1Mn2+ + 4H2O + 4Fe3+ This is what I got. Is it correct?

Chemistry
Balance the equation: _MnO4– + _H+ + _Fe2+ => _Mn2+ + _H2O + _Fe3+ How do you do balance this redox reaction?

Chemistry
The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has an absorbance of 0.550. If a trial's absorbance is measured to be 0.350 and its initial concentration of SCN– was 0.0010 M, the equilibrium ...

Psychology
I am needing help I have a paper due on compare and contast Normal and abnormal Psychology My problem is I can not find no information on what is Normal psychology. I have found great information on abnormal psychology with no luck on normal psychology can some one please ...

Psychology
you examine basic concepts of human interaction from a psychology perspective. In your examination, describe at least two examples of how human behavior changes based on social situations. In your description be sure to address the following: a.Describe the specific behaviors...

Physics

Physics
question: img75.imageshack.us/my.php?image=dsc00702gn9.jpg The answer key said the answer is "C"...HOW!?!??!?!!? Please explain to me why it's 'C'

Physics
A charged object attracts a neutral object...but why do they repel afterwards?

PSYCHOLOGY
Thank you so much I would of never thought of Functionalism thanks again

PSYCHOLOGY
major schools of thought in psychology My answer to this is please tell me if I am correct or not behaviorism social cultural Psychoanalytical cognitive Am I on the right path please help I have to write a paper It says to identify the major schools of thought in psychology ...

chemisttry
Is the molecular geometry around the carbon atom(s) trans-1,2 difluroethylene a trigonal planar? I'm pretty sure it is, but I just need to varify it, if it is not a trigonal planar what is the molecular geometry around the carbon atom(s)?

chemistry
Captain Kirk, of the Starship Enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship. The combination is the pH of Solution A described below, followed by the pH of ...

chemistry
A chemist wishes to determine the concentration of CrO4-2 ions electrochemically. A cell is constructed consisting of saturated calomel electrode (SCE) and a silver wire coated with Ag2CrO4. The SCE is composed of mercury in contact with a saturated solution of calomel (Hg2Cl2...

Chemistry
how do u use Solution B to solve for the Ka?

Chemistry
Captain Kirk, of the Starship Enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship. The combination is the pH of Solution A described below, followed by the pH of ...

Chemistry
Where can I find a picture of the molecular orbital diagram for OH-?

Physics
can someone explain how a "solenoid" wire works?

In Romeo and Juliet, I remember there was something with the disruption of time. Something made the timeline of the play very confusing...can some1 explain? I think it had something to do with Juliet's wedding

Only a chemist can be trusted with the combination to the safe containing a ton of money. The combination is the pH of solution A, followed by the pH of solution C. (for example: is the pH of solution A is 3.47 and the pH of solution C is 8.15 the combination to the safe is 3-...

I'm pretty sure that OH- has a bond order of 1. OH+ has a bond oder of 1. confirm this please.

Math
A traingle has an area 48sqaure cm and its shorter sides have lenghts 9 cm and 12cm. Find the largest angle of the triangle

chemistry
What is the bond order of OH- and OH+? I tried to solve it but couldn't so Im about to give up. Help me please.

I am having to write a paper on when admission policies are made for schools. there no specific school it is all in general do anyone have any idea where I go and find some answers to this any help I am really lost on this.

Probability.
Sorry for posting so many topics, but I really need help on this stuff. I recently lost my work I did on a separate sheet from 2 weeks ago, and now I can't seem to find the answer again. a fair six-sided die is tossed seven times in a row. A) What is the probability that a...

Test tomm. Need help *Urgent*
Sorry for posting so many topics, but I really need help on this stuff. I recently lost my work I did on a separate sheet from 2 weeks ago, and now I can't seem to find the answer again. a fair six-sided die is tossed seven times in a row. A) What is the probability that a...

TEST TOMM. NEED HELP IMMEDIATELY. PROBABILITY
A fair coin is tossed ten times in a row. What is the probability that "heads" comes up at least eight times? I got an answer of 7/128, but I lost the paper with the work I showed. Can someone refresh my memory please?

Probability. NEED HELP!!!
What is the probably that a five-card hand dealt from a standard deck of cards will include four cards of the same alue? (This is called a "four of a kind" in poker)

Probability
I've tried but i need help =/

Probability
An urn contains 7 red marbles labeled {1,2,3,4,5,6,7} and 5 green marbles labeled {1,2,3,4,5}. Four marbles are pulled out at once. What is the probability that A. All four marbles are red? B. More of the marbles are green than red? C. Both red and green marbles are present? D...

English-Literature
What is the "American Dream"? Where did it originate, how has it caged over the centuries?

Science
Effect of Food habits on GIT problems of Adolescence

GEN 300
describe your optimal learning times and optimal learning environment can someone please explain to me what my instructor might be wanting in this section I have read all the materials and I can not find nothin he might be looking for

Chemistry
Which of the following is the formation reaction for CaO(s) ? A. Ca2+(aq) + O2–(aq) CaO(s) B. Ca(s) + .5O2(g) CaO(s). C. CaO(s) Ca(s) + .5O2(g) D. 2 Ca(s) + O2(g) 2CaO(s) E. 2 CaO(s) 2 Ca(s) + O2(g) Left with B and D. Please Help

Chemistry
Which of the following is NOT true about the thermodynamic standard state? A. A solid is in its standard state when the atmospheric pressure is 1.00 atm and the temperature is 25C. B. A pure liquid is in its standard state at 25C and a vapor pressure of 1.00 atm. C. An ...

chemistry
Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol, a density of 0.660 g/mL, and a boiling point of 69C. Pentanol is an alcohol (a hydrocarbon with a "OH" group attached to one of its carbons) with a ...

Chemistry
Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. Two lone pairs of electrons are assigned to the oxygen in each Lewis structure of all three molecules. B. H-O-H and C-O-H bond angles are all equal to 1095. C. Dispersion forces ...

math
why dos presidents put vegetables in his blender

Accounting II
Does anyone know how to calculate cost of savings when calculating the net present value? The NPV was given and I have to backed into the other figures. The only thing about cost savings provided is "25% reduction in direct material. The DM cost listed is \$10. I tried ...

chemistry
a sample consisting 22.7g of a nongasous unstable compound X is placed inside a metal cylinder with a radius of 8Cm and a piston is carefully placed on the surface of the compound so that for all practical purposes the distance between the bottom of the cylinder and the piston...

chemistry
is this then equal to the Ka of the acid solution?

chemistry
oh ok.. thanks so much... So when you have the pH of a substance the [H^+] is always equal to 10^-pH?

chemistry
if the pH of a half-neutralized acid solution is 5.4, how would you find the [H+] of the the solution. There is 1.0 g of L-ascorbic acid which was dissolved in 100 ml of water. That solution was split in two and 50 ml of the solution was titrated with 0.2 M NaOH (13 ml NaOH). ...

physics
I did a lab on the potential difference and how it relates to the number of batteries connected. What would be a good title for my lab?

english
• The article I chose is: how stuff works – communication. The type of introduction that the writer used was to include interesting facts about the subject. He also gave animated illustrations to show how telephone communication works. The kind of impact his ...

math
1. (sinx/cscx)+(cosx/secx)=1 2. (1/sinxcosx)-(cosx/sinx)=tanx 3. (1/1+cos s)=csc^2 s-csc s cot s 4. (secx/secx-tanx)=sec^2x+secxtanx 5. (cosx/secx-1)-(cosx/tan^2x)=cot^2x

Physics
yes.

Physics
I just did a lab on potential difference/voltage, resistance, and current. What would be good title for my lab? Thank You.

Science
I need to develop a management and sustainment plan that you think will alleviate water pollution, any ideas where I would start?

Physics
Try this one. you seem to have forgotten about the coeficient for copper pipe. Remember volume gained (reservoir) equals volume lost (pipe) deltaV =beta_water x V_i x deltaT this gives the change in V for water then deltaV = beta_copper x V_i x deltaT this gives the change in ...

criminal justice
Do we even need Miranda anymore, doesnt everyone already know the warning?

criminal justice
Imagine you were an officer confronted with a hostage situation. Explain how you would use the twelve stages explain how you would use the twelve stages of conflict resolution, and what effective strategies you would use to bring about a positive resolution. Before you address...

criminal justice
Hearing Impaired - I believe all officers are trained in the very basics of sign language; I could be mistaken. Gang Members - Most all Law Enforcement Agencies in areas with high gang activity have a Gang Unit. Elderly – You must have patience.

criminal justice
how criminal justice professionals can best communicate with person's with hearing impairments, gang members, and the elderly

communication in criminal justice
Describe functions of organizational networks and specialized criminal justice databases, recognizing that technology is rapidly becoming more important in the field of criminal justice

Interpersonal Communication in Criminal Justice
Escobedo actually asked for an attorney and was refused. His confession was thrown out. Miranda ruling was that all suspects must be given their rights in a form that they can understand. Two years later Congress tried to weaken Miranda in Federal cases. They protect the ...

Interpersonal Communication in Criminal Justice
Could someone critic this for me? Escobedo v. Illinois came first when he filed a case against the State of Illinois because they did not allow him access to an attorney after having been arrested previously on the same charge of murdering his brother-in-law. In the Miranda ...

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