Recent content by student24

ok, I've thought about it and i cannot get any closer. i need the answer. this problem is driving me crazy. the net force acting on it before it falls off is -W+N=(mv^2)/r that's all i see. need help.

hmm, my book says that "when an object moves in a circle of radius r with constant speed v, its cent accel is." i guess not then. let me play around with that then, i will return tomorrow if i am still stuck. ty for helping me so far. now i will attack some more.

yeah, circular motion. i know the cube follows a circle. i thought about using a=(v^2)/r but that equation is only valid for constant speed. the cube's speed increases as it falls. i have thought of everything, i think. what am i missing?

yeah, I've thought about that. it will fall off when the normal force goes to zero. or when the net force is just the weight. but that still gets me no where. i am not noticing somehting very obvious apparently. please say more.

Homework Statement an ice cube is placed on top of an overturned spherical bowl of radious r. if the cube slides downward from rest at the top of the bowl, at what angle does it separate from the bowl? Homework Equations The Attempt at a Solution i'm stuck with this problem. i...

i'm going to try that. yeah, i agree, a lot of misinformation is going around.

thanks. that's still awesome (that is, unless berkeley has a different policy).

clarification: you transferred into ucla from a community college or you transferred into berkeley from ucla?

i was reading something online that mentioned something about UCs not accepting transfer students who have 80+ transferable units. is this true?i read another atricle and it said that that rule does not apply to cc students. by the time i reach vector calculus i will have approx. 90 units. does...

thanks for the information eep. by the way, when you transferred did you finish all of your major prep courses (i.e. the math, phys, and chem) or did you take them at berkeley. also, can i ask how things are going with physics at berkeley? have you completed your degree yet?

yeah, i see your point. But what i was referring to was that most people usually start off with "why" then move onto "how." maybe we can agree on simply "curiosity" as being the ultimate force behind science.

hmm, a bit too definitive with the "only," but it's definitely something to ponder on.

Why? Probably the most popular question in physics. So I ask, to physics majors, why did you choose to study one of the most challenging subjects in college? A subject that most people avoid due to its inherent difficulty. Masochism, perhaps?

thanks to everyone for the advice. to daveb: damn, that sucks.

math: I had to start at the lowest level math and work my way up to stats. i have As in all math classes so far. I'm going to start trig. next semester. chem: i haven't taken any classes yet, but I'm going to start the sequence next semester. phys: none so far. assuming i get As in all...