I am given that the equation of a curve is y = 9 / (2 - x). They then ask me to find the volume obtained by the region bounded by the curve, the coordinate axes and the line x = 1 when the region is rotated through 360° about the x-axis.
My attempt:
To calculate this I must use the format...
That sounds quite interesting(and I little out of the scope of what I'm expected to know, but that's not important :-p), though I'm not sure how one would calculate the work done in that situation...I mean I understand what you're doing, but if I were given a set of relevant data I wouldn't...
Oh wow, now I feel a little silly! :blushing:
Though I didn't know that work was the dot-product of displacement and force, I was always taught that it was the force multiplied by the distance moved. Thank goodness I learned the correct definition before I ran into more trouble later on!
Just...
This is one area of basic physics that I feel I'm never sure what is wanted in the question: what is the work done by a force decelerating an object?
I mean work is F*d, but in this case the distance moved by the object is in the opposite direction of the force. I mean I would think the work...
I'm busy preparing for my upcoming physics final by going through some old papers. I came across this question and I honestly have no idea what to do. Here's the question:
A β-particle was emitted with an energy of 5.7 x 103 eV.
Calculate the speed of the β-particle.
What I was...
This is my first post(of hopefully many!), so I hope I've made this thread in the right subforum...
Anyway! Let me set the scene:
Say you throw a ball against a wall, a perfectly elastic collision takes place and the ball bounces back off the wall with the same speed.
Now I understand...