Recent content by briguy2188

it wouldn't be a refrigerated beverage..it would be something that a consumer has left in his or her car in cold weather for instance. I am in first year engineering and this project is for physics. we are going to be studying electricity in a week or so, so I am just going off my high school...

could you help me out? I am a little rusty in doing these calculations. i know what V, I, and A are. i believe ohms law is V=IR? the amount of energy that i need is for the batteries or the wire? so then i find that resistance...then find a wire that will have that resistance? will i need to use...

"If you only have to keep something hot by gently reheating, you can easily make this work." could you elaborate a bit? hmmm...yes my first plan was to have a device that will heat a cold beverage up to something warmer...doesnt have to be hot necessarily, just warmer than its current state.

hello, one of my projects is to develop some sort of self heating bottle. i must fabricate and build a working prototype. i have a couple of ideas. one is to use the same concept as a toaster. wrap the bottle in nichrome, a type of resistance wire. however, would the wire get hot enough to heat...

First of all I would like to apologize if I am posting in the wrong forum. I couldn't really decide if this belonged in the general physics, homework, or engineering forums since it involves principles of physics, is technically an assignment, and also has to do with engineering. Anyways...

ohhh i see i see. thanks a lot guys!

so CF is a direction, not a force correct?

lightgrav, what do you mean? can you give some examples please?

i think i can explain the examples... CF can be in the form of friction when a car turns. The friction from the tires causes the car to change its direction, therefore inducing CF?? When a ball is being swung in a circular motion, tension in the string causes the ball to swing in circles...

i see...still doesn't answer my question as to why centripetal force is not unique. still trying to piece it all together :D:D

I think i undersand what you are saying whozum. is that why CF is not unique? since any other force can serve the same purpose as CF? Ok then, il try again. An object undergoing circular motion is constantly changing its direction. Therefore, that object is accelerating and according to...

is CF the centre seeking force of an object, causing it to change its direction?

One question says "It has been said that centripetal force is is not a unique force. Outline what a centripetal force is as well as three (explained) examples of what is meant by this statement.(5 marks)" Here is my theory: Newtons first law states that an object in motion stays in motion...