Lorraine Said:Need a topic for a modern physics experiment?We Answered:http://arxiv.org/abs/0810.3933Leslie Said:help on a question in modern physics......?We Answered:Here the answer will require you to use Special Relativity to calculate the time dilation due to the speed of the muon traveling at 0.99c. Of course in effect increases the half life of the muon, thus the number of muons reaching the ground will be more than if there were no time dilation.
t' = t / sqrt(1-(v/c)²) = 10.63 micro-secondsDarryl Said:Modern Physics: PLS HELP!! (short) Find width of slit in single slit diffraction experiment given...?We Answered:You are on the right track
d*sin(θ) =...
Allan Said:where can i find a Solutions Manual for my physics book, for free online?We Answered:If you're an instructor, you can get a copy from the publisher, usually free. If you're not an instructor, this isn't just piracy, it's also academic dishonesty.Irene Said:Where can I go to learn basic science, chemistry and physics online for free?We Answered:here are some good online resources:
http://www.physicsforums.com/
http://www.chemicalforums.com/
http://www.sciforums.com/
http://chemistry.about.com/od/generalche…
and don't forget about wikipedia...it has tons of information; and surprisingly, youtube has a few decent learning resources if you can search past all the bs....
hope this helpsMae Said:Does anybody know where I can get free online help...
Miriam Said:Can someone help me with these physics problems?We Answered:Remember your basic right-triangle trigonometry. Sine = opposite over hypotenuse and cosine = adjacent over hypotenuse. If you make a sketch of each vector (always a good idea), you'll see that
1) the hypotenuse is 120 units. The horizontal component is the adjacent leg to the 30 degree angle, so
horizontal = 120 cos(30)
The vertical component is the opposite, so
vertical = 120 sin(30)
You can use a calculator for those.
2) Same problem, except the hypotenuse is 10 units and the angle is 48 degrees.Tracy Said:Can someone help with a...
Maria Said:physics question?We Answered:I think the teacher is trying to get through the point that in real life acceleration is difficult to change. Acceleration is not a physical property... it's a derived property. You can't change the force of gravity and you can only make the car faster by removing mass, not by adjusting force.
I'm pretty sure that's how it works. However, through mathematics we know that the F=ma formula is fully reversable, so you can find the force that you require and then derive the mass from the equation.Rodney Said:I don't know what career in technology to...
Samantha Said:What course to take with physics? AP Bio or AP Chem?We Answered:AP Chem is good if you like it and have the mathematical abilities.
AP Bio is much, much more in-depth than the freshman biology and requires intensive memorization and also the ability to understand concepts and apply them to questions about experiments/hypothetical situations and results. AP Bio usually is easier for people who managed a relatively easy time in Chemistry as it also applies some concepts of chemistry as well, and you'll need to remember reactions and things like that.
Both are good choices for medicine, but...
Warren Said:Do you think I can get into medical school?We Answered:To get into an American medical school you will need a bachelor's degree.
If you take the reqscience courses in a degree program, and do well, then the professors teaching those courses could write recommendation letters for you.
AlohaWillie Said:Which University Should I transfer to?We Answered:Chicago is cool but consider this, you are less likely to get into a grad school program if you attended the school for undergrad. so look for which has the best grad program then the best undergrad and transfer to the one with the best...
Benjamin Said:is there any physics teacher?We Answered:you can mail me at
the_scientist111@yahoo.com
AhmedJoe Said:Physics teaching tool, would this be useful?We Answered:Sounds like a whole lot of work to me, but if you'd have fun creating such software yourself, then there's no harm in prototyping it. From my point of view though, what you describe sounds more like a novelty than a physics teaching tool.
In an introductory physics course for example, I think it's most useful to have simple demos that help explain specific concepts and tie those concepts to formulas. Students care about passing exams more than anything else, and exams usually...
Amber Said:Physics Internal Assessment, GCSE Level. Help drawing an accurate diagram?We Answered:You forced me to google 'LDR'
See the link belowChristy Said:HELP PLEASE!*******Physics project for kids!!*********?We Answered:you can try to make the contraption that shoots a ball out horizantally and drops one vertically at the same time from a certain height, but both hit the ground at the same time because gravity is always pushing down on objects all objects with the same force whether they are moving or notAllen Said:How to fight a bogus personal injury suit?We Answered:I would take the advice of the school's lawyers, and let them represent...
Andrew Said:please help answer these physics homework problems for me.?We Answered:Friction = Coefficient of friction X mass
Normal force is opposing to the decomposed force always =
mass X gravity X cos of the angle
Gravity = 9.8(you can use 10)
Net force will be the other decomposed force - friction
the other decomposed force which makes the mass slide down is
mass X gravity X sen of the angle of the inclined plain
Net force = (m X g X sen of the angle) - m X coefficient of friction
Acceleration
Force = mass X acceleration
therefore Acceleraion = net force/massLouise Said:need help with some...
Vincent Said:Should I take a Physics Degree?We Answered:It sounds like you wouldn't be accepted into a physics degree straight away because you just don't have the knowledge. However you could try applying to a foundation year (sometimes called a foundation degree - although it is not actually a degree!) in physics - it would be a one year course at a uni for people who want to do physics but don't have the qualifications. Passing it would usually guarantee you a place on a (proper 3-4 year) physics degree course at that uni the following year, if you wanted to...