i was just wondering if anyone could help me work out this probelm? I've been having an extremely difficult time in physics. My teacher has only taught it once before and is difficult to understand. Anyways, here's the probelm. Three forces act simultaneously on point J. One force is 10.0 N...
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...