Recent content by sap_54

I understand (or at least thought I did) :D Kirchhoff's rules. When I got to this circuit; however, I got a wee bit confused. The arrows indicate where I placed my three arbitrary currents. When writing equations for the two smaller loops (the ones on the left), I didn't know which current to...

I am working on my thermodynamics problems and I ran into a few problems on a couple of the questions: 1.) Lake Erie contains roughly 4.00*10^11 m^3 of water. (a) How much heat is required to raise the temperature of that volume of water from 11 degrees C to 12 degrees C? (b)...

Hello, I am having the worst time figuring out how to solve this problem: A student build and calibrates an acclerometer, which she uses to determine the speed of her car around a certain unbanked highway curve. The accelerometer is a plumb bob with a prtractor that she attaches to the roof...

A person is going for a walk and follows the path shown (the red lines). What is the person's resultant displacement, measured from the starting line? Ok, I can solve this using geometry, but I need to knkow how to solve it via physics. The first 2 vectors can be written 100mi+300mj, I just...

Hey Everybody, I am a little perplexed on how to answer this problem, I got an answer, but it doesn't seem to fit within the context of the problem. I don't know if it is because I am using the wrong equation, or if I am just plugging the numbers in wrong: A rocket is fired vertically...