Homework Statement
Question 1. General Plane Waves.
We may represent a general electromagnetic plane wave by (real part of the complex exponentials)
E=E_{0}*e^(i*k*r-iwt) B=B_{0}*e^(i*k*r-iwt)
Show that Faraday's Law becomes iwB0=-ik x Eo
Homework Equations
dB/dt=- curl of E
The...
Homework Statement
A particle oscillates with an s.h.m of amplitude 50mm and a maximum speed of 0.25 m/s. Calculate the pulsatance, period and maximum acceleration
Homework Equations
x = a sin(wt)
dx/dt=awcos(wt)
d2x/dt2=aw^2sin(wt)
Put in x=0.05sin(wt)
0.25=0.05wcos(wt)...
Homework Statement
A body of large mass is suspended by means of a string A from the ceiling, and another similar string B is attached to the bottom of the body. Which string would break when string B is pulled (a) sharply, and (b) steadily? Why?
Homework Equations
F=ma
The...