I had assumed that the current was flowing out radially. Apparently this textbook is notorious for being very vague on what exactly it wants. Thanks for the quick response!
Homework Statement
A copper resistor has the shape of a cylindrical shell. What is the resistance of this resistor if its length is 1m, its inner radius is 0.1cm, and its outer radius is 0.2 cm? What is the radius of a solid wire of circular cross section with the same length and the same...
Homework Statement
Proxima Centauri, the star nearest our own, is some 4.2 ly away. (a) If a spaceship could travel at a speed of 0.24c, how long would it take to reach the star according to the spaceship's pilot? (b) What would someone in the frame that moves along with the spaceship...
I tried using the forces and accelerations; however, all I got was that there is a net force of 0.6 N to the left of the top (considering I'm supposed to ignore friction) for some time t. Although, would that time just be the amount of time it takes for the top to make the amount of revolutions...
Would the distance over which the force is applied happen to be 1 m + the distance traveled by the center of mass of the top?
Then comes the challenge of determining that distance. q.q
Update: I still can't seem to get an amount of work into the system that matches the amount that the given answer implies. Is there something at work here more than translational (Fd) work or rotational (FΔθ)?
Homework Statement
A particular top can be approximated as a solid cylinder of mass 100 g and radius 2 cm. A string of negligible mass and length 1 m is wound around the top, which is started by pulling horizontally on the string with a constant force of magnitude 0.6 N. The top starts...