Physics (from Ancient Greek: φυσική (ἐπιστήμη), romanized: physikḗ (epistḗmē), lit. 'knowledge of nature', from φύσις phýsis 'nature') is the natural science that studies matter, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves.Physics is one of the oldest academic disciplines and, through its inclusion of astronomy, perhaps the oldest. Over much of the past two millennia, physics, chemistry, biology, and certain branches of mathematics were a part of natural philosophy, but during the Scientific Revolution in the 17th century these natural sciences emerged as unique research endeavors in their own right. Physics intersects with many interdisciplinary areas of research, such as biophysics and quantum chemistry, and the boundaries of physics are not rigidly defined. New ideas in physics often explain the fundamental mechanisms studied by other sciences and suggest new avenues of research in academic disciplines such as mathematics and philosophy.
Advances in physics often enable advances in new technologies. For example, advances in the understanding of electromagnetism, solid-state physics, and nuclear physics led directly to the development of new products that have dramatically transformed modern-day society, such as television, computers, domestic appliances, and nuclear weapons; advances in thermodynamics led to the development of industrialization; and advances in mechanics inspired the development of calculus.
*Currently enrolled in University Physics 2*
We have not covered the topic pertaining to light yet, but we are working with sinusoidal waves. I would like to better understand the motion of light in space. It is my understanding that light moves in the form of waves, so what causes the wave...
I took algebra based physics 1, and need physics 2 to graduate. I don't want to take algebra based. Is it possible to take calc based physics 2 with taking algebra based physics 1?
If i talked to my school what would they say? What if I needed calc physics 1 and 2 for BS would they sub 1?
Homework Statement
Question: An electron is located on the Earth's magnetic equator at an altitude of 1000m. In which diretion will it be deflected when it is projeted upward?
Homework Equations
Not sure
The Attempt at a Solution
I'm trying to study for an electromagnetism exam trying...
Hi everyone,
I want to take the Physics 1 & 2 sequence next year but Physics 1 conflicts with my schedule for an important course in my major next semester (I'm in CS). Is it possible/advisable to take the calculus-based Physics 2 before Physics 1? I'm a good student, I'm taking Calc 2 this...
Homework Statement
A proton is moving with an initial velocity of 6.28x10^5 m/s straight towards a large conducting
sphere of radius 85.2 cm. The sphere has a charge of 4.83 μC on it. Protons have a mass of
1.69x10^-27 kg.
a) Determine how close the proton can come to the surface of the...
Hi,
At my school physics 2 has calculus 1 as a prerequisite. You don't have to take calculus 3 while taking physics 2 or prior to taking it. I found physics 2 to be extremely difficult. I was taking while taking calculus 2. We got into flux integrals, Gaussian surface integrals, and some...
Hey everyone,
So basically I'm looking to take an online Physics 2 course. I know that is not a great option to do because I will miss out on the hand-to-hand labs which are important. I'm currently finishing up Physics 1 for the semester and was unable to enroll into physics 2 at my college...
Looking for online Physics 2 class!
I'm looking to complete an online physics 2 course but I can't seem to find any good/accredited programs online. I was wondering if anyone knew of any that they can possibly refer me to. I have already completed the Lab portion of the course through the...
Homework Statement
Electrons are fired Eastward at a certain location near Earth's surface. Ignore gravity.
A. Describe the motion of the electrons and describe the trajectory they follow.
B. If the electrons first return to their initial positions after 1.5 x 10^-6 seconds, determine the...
Prob statement:
An electron is to be accelerated from a velocity of 1.00×10^6 m/s to a velocity of 9.90×10^6 m/s . Through what potential difference must the electron pass to accomplish this?
equations:
v=U/q0
1/2mv^2
U=K (this is where I have a question)
Well I already have the...
Okay so I am a freshman in college, and planning on majoring in Computer Engineering.
The first semester of college was a blast, I did really well in all my classes. I loved Physics, and kinematics just clicked with me.
Now comes second semester. Electricity just doesn't click with me. I...
Hi guys,
Do you think it's a good idea/possible to take Physics 2, Differential Equations, Linear Algebra, and Multivariable Calculus together in one semester?
I'm taking Calc 1 and Physics 1 this semester. Things are going well, although Physics can be difficult at times. Next semester I would be taking Physics 2 and Calc 2 at the same time. I keep hearing from other students that this is a bad idea. Can someone shed some light?
I'm taking gen. physics 2, which consists of electric fields, magnetism, stuff like that. Big difference from classical mechanics in physics 1.
I remember in calc III, I learned nothing from my professor because he didn't know how to teach. I basically learned the entire course from Paul's...
I am a freshmen who is interested in studying physics, but I did not take the first semester physics with my Calc 1 this semester. My plan is to take Physics 1 next semester and Physics 2 over the summer semester. The summer semester is longer then a normal one because it is about three months...
Homework Statement
An electron is released from rest in a weak electric field given by vector E = -2.40 10-10 N/C jhatbold. After the electron has traveled a vertical distance of 1.8 µm, what is its speed? (Do not neglect the gravitational force on the electron.)
Dont even know where...
Hey I'm a new time member but I hope to use this forum for my college Physics 2 class, anyways:
1. Question: Two charges are D = 2.5 m apart and lie on the x-axis. What must be the magnitude of the charge on the right one, Q2, (in C) so that the electric field is zero at x = 1.75 meters. Let...
I wanted to know what book is one that covers electricity and magnetism to its best! I want a book that shows explanations in detail about that subject! Thanks a lot in advance!
Physics 2 coaxial potential help!
https://wug-s.physics.uiuc.edu/cgi/courses/shell/common/showme.pl?cc/DuPage/phys2112/summer/homework/Ch-22-E-Potential/IE_cylindersV/coax.gif
The diagram above shows a coaxial cable. The inner conductor has radius a = 0.0025 m. The outer conductor is a...
Homework Statement
make a drawing of a circuit, showing how a voltmeter is connected to measure the voltage across a resistor and how an Ammeter is connected to measure the current through a resistor.
Homework Equations
I'm not sure if I am suppose to draw a power source and if i do, I...
Magnetism problem for General Physics 2!
Homework Statement
Suppose the rod in the figure has mass m= 0.40kg and length 20cm and the current through it is I= 40A .
(Intro 1 figure)
If the coefficient of static friction is us= 0.55, determine the minimum magnetic field (not...
Homework Statement
Two charges are separated as shown. Where would you place a -3 microCoulombs (mC) charge such that the net force on this charge is 0?
+ +
4mC 8mC
Distance between charges are 80cm apart...
Physics 2 exam tomorrow. Need help with a couple more problems and I am good! :)
1. a circuit has a 137 mH inductor across AB (the whole curcuit is a square with corners ABCD), a 50 ohm resistor across BC, and a 25 uF capacitor across CD with a 115V @ 60 hz power source between DA. What is...