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August 22, 2014

Search: Chemistry/physics

Number of results: 99,845

math
A school has 63 students studying Physics, Chemistry and Biology. 33 study Physics, 25 Chemistry and 26 Biology. 10 study Physics and Chemistry, 9 study Biology and Chemistry while 8 study both Physics and Biology. Equal numbers study all three subjects as those who learn none...
December 24, 2012 by ifi

math
500 students sat for an examination in mathematics,physics and chemistry.45 passed all the three subject,60 passed mathematics and chemistry,70 passed physics and chemistry,50 passed mathematics and chemistry,10 passed in mathematics,80 passed in chemistry and 35 passed at ...
November 13, 2011 by damilola

just wondering...
what is harder, chemistry or physics? because i've been struggling all year in chemistry and i'm taking physics next year... i have a solid a in alg.2 though... oh yeah, and i want to be a physical therapist. so if i'm not to good in chemistry can i still be a physical ...
May 29, 2008 by sfdsajflkd

chemistry
I have a chemistry project where I need to make an object move using my knowledge of chemistry. The object os a small ball teh size of a large marble. It must be moved using chemistry and NOT physics (ie slope wind etc). I am 15 and in grade 11.
April 8, 2010 by Didier

Note to physics, chemistry students
Please note the spelling of Physics, and Chemistry. If you are a college student in those courses, and cant spell them, frankly, asking for help here is insulting to your college and you.
October 26, 2008 by bobpursley

chemistry
How do you make a venn diagram of the 6 branches of chemistry? (Inorganic chemistry, organic chemistry, biochemistry, nuclear chemistry, physical chemistry, and analytical chemistry) like where would they go in the 3 circles
August 26, 2012 by jake

Math
At Small Town High there are 100 students, each of whom takes at least one of biology, chemistry, or physics. There are 50 students in biology, 60 in chemistry, and 70 in physics. If 24 students are enrolled in exactly two of these classes, how many students are in all three?
November 7, 2010 by kyle

math
A textbook store sold a combined total of 315 physics and chemistry textbooks in a week. The number of physics textbooks sold was two times the number of chemistry textbooks sold. How many textbooks of each type were sold?
March 7, 2013 by help

physics
A physics student sits by the open window on a train moving at 25 m/sec towards the east. Her boyfriend is standing on the station platform, sadly watching her leave. When the train is 150 meters form the station, it emits a whistle at a frequency of 3000 Hz. What is the ...
April 21, 2010 by Jason

Physics
A physics student sits by the open window on a train moving at 25 m/sec towards the east. Her boyfriend is standing on the station platform, sadly watching her leave. When the train is 150 meters form the station, it emits a whistle at a frequency of 3000 Hz. What is the ...
April 22, 2010 by caleb

Physics
A physics student sits by the open window on a train moving at 25 m/sec towards the east. Her boyfriend is standing on the station platform, sadly watching her leave. When the train is 150 meters form the station, it emits a whistle at a frequency of 3000 Hz. What is the ...
April 23, 2010 by caleb

Chem/Physics
1. How much work is necessary to accelerate a bullet having a mass of 5.0 g to a velocity of 1000. m/sec? This was on a chemistry problem set of mine, and it seems like a very physics-oriented question [I have not taken physics.] Could someone point me in the right direction ...
February 3, 2007 by Jess

statistics
Leslie took two midterm exams and earned the following scores: 82 on the chemistry exam (class distribution: μ = 75, σ = 6.25) and 63 on the physics exam (class distribution: μ = 59, σ = 3.57). Rounding to two decimal points, on which exam should Leslie get...
April 14, 2014 by Sally

Chemistry
The population of San Francisco is 750,000 in an area of 49 square miles. What is the population density in San Francisco? Express your answer in people per acre. ( 1mi(squared) = 640 acres ) 49 sq mi x (640 acres/1 sq mi) =?? acres. (Note that sq mi cancels leaving acres.) ...
September 13, 2006 by Jamie

physics
What model is the basis for chemistry?
May 5, 2008 by kenah

intergrated physics and chemistry
how is work expressed
November 29, 2007 by anita

Physics 11/Chemistry 11
What is the heating capacity of Zinc?
November 9, 2009 by Andy

physics/chemistry
is conductivity a physical or chemical property
February 21, 2012 by bob

Physics/chemistry
Describe the partcle Theory of a HOt air Balloon?
February 16, 2008 by anum

Integrated Physics and Chemistry
The ____ motion of a star can be determined by studying its spectrum
May 10, 2011 by ashlee. :D

math
who are the fathers of following subjects a)maths b)physics c)chemistry d)biology e)social
August 22, 2011 by jagadheeswar

Intergated chemistry/physics
What is the speed (in m/s) of an object that has a mass of 2.5 kilogram and a momentum of 1,000 kg m/s?
October 4, 2012 by Laura

English
Hello! I will type 2 exercises from the lesson I am teaching on Wednesday-english as a foreign language - 8th graders ( it will be graded) I need you to help me with some ideas. It says: LEAD- IN: A Here is a list of some natural sciences: BIOLOGY CHEMISTRY PHYSICS BOTANY ...
April 12, 2010 by refy

integrated chemistry and physics
If 2 blocks have the same mass which one has the greater acceleration?
May 16, 2012 by Erika

science
How do the principles of physics and chemistry both come into play when developing new materials?
March 14, 2012 by long

science
How do the principles of physics and chemistry both come into play when developing new materials
March 15, 2012 by long

chemistry/stiochiometry
could someone please answer my chemistry/stoichiometry questions below both "anonymous one just chemistry on todays date
March 16, 2011 by "anonymous"

physics
A sophomore chemistry student holds a 500mL Erlenmeyer flask full of concentrated nitric acid high above his head at a height of 1.75 meters and declares, "I'm the King of Chemistry!" At that moment another student, startled by the sudden ignition of her Bunsen burner, jumps ...
September 17, 2012 by Sara

statistics
At a certain college, 15% of the students receieved an A in their required math cousre, 10% receieved an A in their required chemistry course, and 5% receieved an A in both. A student is selected at random. a.) What is the probability that he received an A in either chemistry ...
October 4, 2009 by Sharon

Integrated Physics and Chemistry
A furnace is used to heat ___ A)water B)air C)a refrigerant D)radiant coils
April 21, 2011 by Ashley!!

Science
List all of the things that are physical property. You will find some listed here. http://nobel.scas.bcit.ca/chem0010/unit2/2.2_properties_physical.htm There are very many others, but they would require a lot of effort to explain what they mean. Isn't every property a physical...
March 24, 2007 by Lisa

Integrated Physics and Chemistry
Energy that is dissipated during heat flow cannot usually be used to produce work. True False
May 3, 2011 by jessica

PHYSICS/CHEMISTRY
Can someone explain to me, what does Metastable isotope means? I already read the definitions on the internet but I really don't understand it. Thanks in advance.
May 14, 2013 by LG

Chemistry
Our professor just told us that the final exam will be the ACS exam, we are taking general Chemistry II. What is the best way to study for ir? Is the preparing for ACS general chemistry study guide good? If we are taking general Chemistry II do we have to study Chemistry I again?
April 19, 2012 by Mima

Chemistry
Our professor just told us that the final exam will be the ACS exam, we are taking general Chemistry II. What is the best way to study for ir? Is the preparing for ACS general chemistry study guide good? If we are taking general Chemistry II do we have to study Chemistry I again?
April 19, 2012 by Mima

Chemistry/physics
Are there two ways of calculating the average kinetic energy of a molecule? Ik that 1/2mv^2 works but for this problem, i dont know the mass or the velocity....
October 5, 2008 by Rachel

Intergated chemistry/physics
What is the momentum of a 100 kilogram football player moving with a speed of 3.5 meters/second. The units should be written as kg m/s.
October 4, 2012 by Laura

integrated physics and chemistry
classes of steel and iron are defined by the amount of WHAT? and other elements present in the alloy. is it zinc,tin,carbon,or aluminum?
November 7, 2009 by logan

Chemistry/physics
The KE of a hydrogen atom's electron is 12.65 eV. Calculate the velocity of the electron? Known: KE=mv^2
June 8, 2014 by Fernandez

integrated physics and chemistry
what is the main ingredient in 22-karet gold? is it copper,tin,gold,or steel?
November 7, 2009 by logan

Physics/Chemistry
Does an electroscope losing its charge by being grounded violate the law of conservation of charge?
May 5, 2012 by Helen

Chemistry (kind of)
Okay so this is actually for an english assignment where we have to report on a problem in our field....mine happens to be Chemistry so I was wondering what kind of problems or disputes can be caused in a chemistry lab...
February 6, 2009 by Stefanie

Integrated Physics and Chemistry
Which of the following forms of energy transfer can occur in a vacuum? A) conduction B) convection C) radiation D) all of the above Can I get some help on this one too, please?
March 21, 2011 by Kaitlin

Physics and chemistry
why does the electrical resistance in your body decrease when you get wet Salt is in the skin, salt water is a good conductor.
May 6, 2007 by Jimmy

Integrated Physics and Chemistry
Insulating materials are rated by their.. A)specific heat B)heat index C)R-value D)temperature resistance
April 21, 2011 by Ashley!!

Intergated chemistry/physics
If a bowling ball is rolling at a speed of 1.5 meters/second and has a momentum of 10.0 kg m/s, what is the mass of the ball in kilograms?
October 4, 2012 by Laura

DrBob222 please check
DrBob222 please check my physics question posted at 8:55pm. The subject is drwl please check. I am not getting a response from drwl. Thanks! Mary DrWLS is not on right now. My physics is too poor to trust my answers. Bob Pursley is smarter than I am; he does physics, math, and...
February 27, 2007 by Mary

physics
is this the strutual formula for hydrogen cyanide H:C:::N and is this correct for cyanogen :N:::C:C:::N any advice woulds be appreciated This is more chemistry than physics. It is important to put the subject line carefully in order for the right people to look at the problem...
February 18, 2007 by bex

Math
If you pass general chemistry, then you can take organic chemistry. You pass general chemistry. You can take organic chemistry. Let P = you pass general chemistry Let Q = you can take organic chemistry I came up with P - >Q P therefore Q But my set up is wrong, how do I ...
January 21, 2011 by Madison

Chemistry
I'm having a hard time getting started studying for my chemistry midterm. i'm kind of overwhelmed. my teacher gave me a brief study guide, but where would be the best place to start? are notecards effective for studying chemistry?
January 12, 2008 by Catie

Integrated Physics and Chemistry
Some refrigerants used in air conditioners have been associated with.. A)somg B)destruction of the ozone layer C)thermal pollution D)power failures
April 18, 2011 by Ashley

Integrated Physics and Chemistry
Some refrigerants used in air conditioners have been associated with... A)smog B)destruction of the ozone layer C)thermal pollution D)power failures
April 21, 2011 by Ashley!!

Integrated Physics and Chemistry
In an internal combustion engine, the gas vapor/air mixture enters the cylinder during the ____ stroke. A)intake B)compression C)power D)exhaust
April 21, 2011 by Ashley!!

ap chemistry
I have taken ap chemistry but I have language barrier and sometimes I don't get it and I am getting behind.We are already in chapter 9.I don't want to quit. What is the best way to improve and learn faster?Any practice I should do?What is the experience taking ap chemistry ...
November 4, 2012 by zoya

Chemistry
Chemistry and engineering topics how chemistry relates to engineering for my 10 page research paper
May 31, 2014 by Mario Garcia

Chemistry/physics
Calculate the final temp. of 100g of Ag at 40 C is immersed in 60.0g of water at 10.0 C. SH of Ag is 0.065 cal/g/C SH of H2O is 4.184 J/g/C I can't figure out how to put delta T in the equation when I haven't found it yet :-\
September 26, 2010 by Natalie

chemistry/physics
If a rock climber accidentally drops a 69.0 g piton from a height of 305 meters, what would its speed be just before striking the ground? Ignore the effects of air resistance.
February 6, 2013 by Brianna

statistics
At a certain college, 15% of the students received an A in their required math course, 10% receieved an A in their required chemistry course, and 5% received an A in both. A student is selected at random. a.) What is the probability that he received an A in either chemistry or...
October 3, 2009 by Sharon

Chemistry
In polymer chemistry, it is often said that obtaining a polymer with certain desired physical properties is often more a problem of engineering than of chemistry. Why is this the case? bgfhftghgfgfnhgf
September 29, 2006 by Lindz

Ap chemistry
I'm taking ap chemistry also! I was just wondering about how much space they give you on an ap chemistry test the Multiple choice section, is it enough space for work? Do they give you scrap?
October 5, 2008 by Jaqui

Physics/Chemistry
How do I understand what Quantum Dots are? I read Wikipedia, but the description seems a little over my head? Can I get a simpler explanation of this? or a pointer to some where I can read this?
March 17, 2011 by Sean

Chemistry
In polymer chemistry, it is often said that obtaining a polymer with certain desired physical properties is often more a problem of engineering than of chemistry. Why is this the case?
September 28, 2006 by Lindz

planning
Ms. Sue, you told me last time to search up my college to see what courses are required for hygienist, and so this is what I got. 2. The course choices that I make today lead to the fulfillment of this dream by them providing all the knowledge that I need to know to become ...
September 1, 2010 by Anonymous

Chemistry
Hi, I have to take chemistry placement test for college this week. Does anyone here have advice for studying to prepare for the test? I took chemistry in high school 2 years ago so I don't remember anything.
October 11, 2010 by Advice please

statistics
At a certain college, 15% of the students received an A in their required math course, 10% received an A in their required Chemistry course, 5% received an A in both. A student is selected at random. a.) What is the probability tha he receieved an A in either Chemistry or Math...
October 2, 2009 by Sharon

integrated physics and chemistry
If the torques on a lever are not equal, the lever will rotate about the fulcrum. i cant find the answer to this anywhere in the lesson. it is a true/false statement. can someone help me?
January 12, 2011 by Nella

Integrated Physics and Chemistry
How many calories are absorbed by a copper spoon with a mass of 200 grams as it changes from 28°C to 33°C? A) 0.00027 B) 3 C) 90 D) 13,000 And this one. How do i solve this one?
June 21, 2011 by Destiny

Intergated chemistry/physics
If the elevator were falling on the moon 9800 meters/second^2, what would the force be? (hint: you will need to look up the acceleration due to gravity on the moon.)
October 3, 2012 by Laura

Integrated Physics and Chemistry
Which of the following would by the best conductor of heat energy? A)a plastic spoon B)a wooden spoon C)a metal spoon
April 21, 2011 by Ashley!!

physics
what is physics?i know that its subject but what is defination of physics? The study of matter, energy, space, and time, and the interactions thereof.
July 7, 2007 by komal

physics/medical physics
please assist me to get project topic under biophysics or application of physics in medecine
August 12, 2009 by mataos

Chemistry
What is ment by a "derived unit." http://www.physics.nist.gov/cuu/Units/units.html
January 19, 2007 by Dennis

Physics and Chemistry
What chemical phenomenon accounts for the elasticity seen in solids? covalent bond hydrogen bond ionic bond all of the above.
June 6, 2009 by Taylor

Integrated Physics and Chemistry
A wooden walkway and a sandy beach are at the same temperature. The sand feels much hotter because it has a greater ____. A)entropy B)insulation capacity C)suface area D)thermal conductivity
April 21, 2011 by Ashley!!

physics/chemistry(kinetic ..gasses)
How many degreed of freedom have the gas molecules,if under standard conditions the gas dendity is 1.3kg/m^3 and velocity of sound propagation on it is v=330m/s?
May 13, 2013 by duke

Integrated Physics and Chemistry
In a four-stroke internal combustion engine, the gas vapor/air mixture is pressurized during the ____ stroke. compression power intake exhaust
May 4, 2011 by jesssssss

Intergated chemistry/physics
If you were in a car traveling 50 miles/hours, how many miles could you travel if you continued for 15 hours without stopping?
October 3, 2012 by Laura

Chemistry
A 35g sample of Fe is dropped into 80g of water at 20 degrees Celsius. What is the final (equilibrium) temperature of the iron/water? This isn't really a chemistry problem. There will be no chemical reaction. It is a heat capacity (physics) problem. Use the specfic heats of ...
March 19, 2007 by Michelle

Integrated Physics and Chemistry
If the kinetic energy of a sample increases, the ____ will also increase. A)potential energy B)temperature C)chemical energy D)nuclear energy
April 21, 2011 by Ashley!!

11th grade physics
my physics teacher asked the class to find a cool physics topic and write a summary and a reflection on it 1page.... any ideas im really stuck
October 5, 2008 by JESSICA!!!!!!!!!!!!!!!!!

Physics
Could someone help me to say this better? I have to Distinguish between atomic physics and nuclear physics, so here is what i have. which deals with the atom as a system of electron(s) and a nucleus and nuclear physics, which considers atomic nuclei alone
November 10, 2007 by Amanda

Physics/Chemistry
1 L of 20 degrees C water is mixed with 4 L of 40 degrees celcius water. What will be the temp of this mixture? the only thing i know is like V/T = V/T but im not sure how it relates to this problem, if at all.
January 11, 2009 by Casey

Chemistry
Compare the natural chemistry that takes place in the environment with the chemistry that takes place due to manmade factors like pollution. Discuss the effect of pollution at the local, regional, national, and global level.
February 20, 2012 by Jenn

Physics;Help!!!!!!
There is apparently no one online who can help with physics questions right now. Please check back later to see if a physics teacher has addressed your question. Multiple posts won't get faster answers. Thanks. =) The question is in the first question marked physics beside ...
June 7, 2007 by Writeacher

Physics/Chemistry
If the price of electrical energy is $0.10 per kilowatt*hour, what is the cost of using electrical energy to heat the water in a swimming pool (12.0m*9.00m*1.5m) from 15 to 27 degrees Celcius?
February 15, 2011 by Heather

physics
thanks for the help earlier just got a question I'm taking AP Physics B this year does that mean next year I would Take AP Physics C??? I don't know if the material in C convers the same material plus the additional calculus material or what??? Could I take AP Calculus while ...
August 9, 2009 by physics

physics/chemistry(Thermodynamics)!!!!!helppppp!
In a certain chemical process,a lab technician supplies 254 j of heat to a system. At the same time,73 j of work are done on the system by iys surroundings.What is the increase in the internal energy of the system?
May 15, 2013 by duke

chemistry
Describe the differance between chemistry and chemical technology. Technology is the making of applications. Chemical technology...making chemicals for practical or commercial purposes. Chemistry...the study of materials, their reactions
August 16, 2005 by Jane

sience project
well im doing a science project and theyare asking me to putbranches and make up a question for each but i dont know a good brach well actually there are different branches like botonamy-plants chemistry food physics medicine and many many more ghfvuyhghjkkhxZSDDgawsbnm gbgyu...
October 19, 2006 by alexa

Integrated Physics and Chemistry
The specific heat capacity of copper is 0.09 cal/gC. How much energy is needed to flow into a 10-gram sample to change its temperature from 20C to 21C? A)0.009 cal B)0.09 cal C)0.9 cal D)9 cal
April 21, 2011 by Ashley!!

chemistry/physics Urgent!!
how do i calculate the substrate concentration needed relative to Km to produce a rate relative to Vmax which is 0.1 x Vmax ?? I think i need to manipulate the michaelis menton eq but when i do it im left with [s] in the amount please help lib
February 25, 2010 by libby

grd 12 U chemistry
Hi, i have a project for chemistry, i have to choose a scientist (i chose Micheal Smith) his career is biochemistry and i have to create a career related to biochemistry.. Question: After finding the famous chemist and then using their field of chemistry, create a career that ...
September 28, 2013 by Sky

Grade 12 University Chemistry
Hi, i have a project for chemistry, i have to choose a scientist (i chose Micheal Smith) his career is biochemistry and i have to create a career related to biochemistry.. Question: After finding the famous chemist and then using their field of chemistry, create a career that ...
September 28, 2013 by Sky

how come no one is helping on physics questions!!!
every physics helpers are not getting any responses. can someone help on physics questions pleases???
October 28, 2010 by Lyn

chemistry
I am doing stoicheometry and I need help. Is there anyone who knows about it? It's in my chemistry class. HELP! I am in tears and cannot figure this out.
March 2, 2010 by Rachel

Chemistry
Why was Wohler's synthesis of urea significant to the field of carbon chemistry? Please help. Thank you.
January 24, 2011 by John

chemistry
answers to latenite labs chemistry lab#9 stoichiometry by loss of CO2
January 19, 2012 by Anonymous

chemistry
I need some help with making a solubility rule for CrO4 -2 for my chemistry homework.
April 1, 2012 by Debbie

chemistry
hey i need help on finding a good oxidation chart for chemistry.
April 3, 2008 by shylo

chemistry
Where would you find iron II sulphide outside a chemistry laboratory?
January 10, 2009 by Nabiha

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