Recent content by Faefnir

Solved. Taking ds verse agrees as the one of the current so |B| ≅ |-2 · 10-5| T ≅ 2 · 10-5 T The minus sign suggests an entering direction for the magnetic field

Both of 5-6 and 6-1. About total and direction: 2-3 is entering 6-1 is exiting Not sure about horizontal segments (3-4 and 5-6): Can you help me? (yes, I know sounds like ready-made food) I supposed to rotate the image by 90° clockwise: 3-4 is entering 5-6 is exiting So, the total is -1.86 ·...

Homework Statement Find (a) the module and (b) the direction, entering or exiting the page plane, of the magnetic field at point P, knowing that a = 4.7 cm and i = 13 A Homework Equations Biot-Savart law The Attempt at a Solution For 1-2 and 4-5 segments, B = 0 because sin θ = 0 for...

Thank you! You have confirmed that I understand the subject well :D

An italian homework book. Indeed the latest edition dates back to 2003

Homework Statement Two masses of 2 kg are attached to the extremities of a 5 cm long, negligible mass and thin bar, free to rotate around a horizontal axis passing through its center. A drop of wax falls on one of the two masses at ##v = 3 \frac{m}{s}## and sticks to it. Retrieve the angular...

A flywheel with a inertia moment of ##245 kg \cdot m^2## rotates making 20 round per second. The wheel stops 20 minutes after a braking moment action. Calculate the intensity of the braking moment $$ \omega = 20 \frac{round}{s} = 126 \frac{rad}{s} $$ $$ t = 20 min = 1200 s $$ The braking...

angle of incidence = the angle of reflection

A ball, which can be regarded as pointin all its effects, falls steady , subject only to the weight force, on an inclined plane of an angle α with respect to the horizontal from a height h computed from the impact point. The ball bounces elastically. Get the d height can reach the ball and the...