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.
Hey guys, I was thinking about becoming an Electrician. I need to take Physics 11 and was just wondering if you guys can give me some example questions so I can see how hard physics 11 is.
Copper has approximately 10^29 free electrons per cubic meter. What is the approximate average velocity of electons in a 1.0 mm radius wire carrying 1.0A?
resisivity, p of copper = 1.68 * 10^-8 ohms meter
The answer in the book apparently is 2 * 10^-5 m/s.
Please help by showing all...
PLZ HELP! I am puzzled with this problem, and all i could find are that the forces equal, but the ans int eh back of the textbook clearly says the solution is 0.2 m/s2
Question: This situation occurs in a pulley system. A 80.0 kg man inside a 40.0 kg dumb waiter (like an elevator) pulls...
OK Physics Help Plz
1st question
A person, resting in a boat, notices that 16 waves pass the boat every 38 s.
How many waves wouldf pass the boat in 55 s.
2nd question
If 180 waves wash up ona shore in 1.00 h, what is the time between waves, in seconds?
3rd...
Physics 11 is so confusing ...
A Person,resting in a boat, notices that 16 waves pass the boat every 38 seconds ... HOw many waves would pass the boat in 55 seconds?
First time posting here. . .
Okay, usually I'm pretty good figuring these type of questions out, but the textbook just doesn't help(no e.g.'s or explanations) and the teacher didn't talk at all about static friction, so, if anyone could give me a hand, I'd be very grateful.
Question:
A sled...