Recent content by toyotadude

Homework Statement 1) The set H of all polynomials p(x) = a+x^3, with a in R, is a subspace of the vector space P sub6 of all polynomials of degree at most 6. True or False? 2) The set H of all polynomials p(x) = a+bx^3, with a,b in R, is a subspace of the vector space P sub6 of all...

Homework Statement The Attempt at a Solution I really am lost after that. Any tips? Did I even write the next force equations correctly? :\

o.o So any tips? Dx I have no idea what a Heyward is... :( (And Google doesn't come up with much anywho :\) How complicated is my question anyways? o.O

nobodeh :(?

Homework Statement The Attempt at a Solution I assumed that it was the same time going up as it was going down, and thus I had: V(initial) = 0 m/s a = -9.81 m/s^2 t = .84 seconds And to solve for speed, I used the Distance = Speed x Time, thus Speed = Distance/Time... and used...

That depends whether the "drilled" rotors were cast like that, or were just OEM blanks and then drilled :o

Herro guys, I'm trying to build a motor for shop class (from scratch really, new manifolds, ect :o), I'm only 15 so please take it easy on me :redface: Anyways, I've been trying to calculate my ideal runner length/diameter and stufflets for the intake manifold design. I've got a question...

Homework Statement The Attempt at a Solution No attempt, don't even know where to start. I get a point... I can draw a triangle out of it. I can figure out the X and the Y. I know the 6 equations... Sin, Cos, Tan, and the opposites Cosecant, Secant, and Cotangent... I know...

Bump? D:

^ I thought it would be 0 for instantaneous velocity, being that B is... well at zero, and the velocity is 0/3... = 0, but I was still wrong? And looking even further, it also asks for the instantaneous speed at point B. Speed is... velocity over time, correct? How would I calculate velocity...

Yup, that's exactly how I figured it out! :) Another brain teaser for you (and a complicated one for me... cause I don't know how to do it >_<) [PLAIN]http://img696.imageshack.us/img696/9361/17430190.jpg It is asking for: What is the average speed for the motion from point O to point B...

Makes a bit of sense, our teacher didn't go that indepth... but I somewhat get it :) There were three parts to this question, and I've been slowly trying to figure them out (I've been absent a few days, and have no transportation for tutoring after school :\) 2) What is the velocity of the...

72 xD? ...which I just entered, and was denied?! :( EDIT: OOOOH. 72 + 9 :O?

Velocity/Time help? :( Homework Statement Hey guys, back again! This one's a real bugger on my online HW sheet :(: 1) The scale on the horizontal axis is 2 s per division and on the vertical axis 9 m/s per division. The particle has an initial position at 9 m...

Got it, thanks! Now this little bugger... I'm pretty sure I have the answer, but the computer denies it? "A car travels 15.3 km due north and then 28.2 km in a direction φ = 49.9 ◦ west of north. Find the magnitude of the car’s resultant displacement. Answer in units of km." My answer was...