Homework Statement
-Use Hamiltons Principle
Homework Equations
\int _{t _{1}}^{t _{2}}({\rm }\delta T -\delta U -\delta V _{E }) dt}
The Attempt at a Solution
Here are my energy equations.
So we have kinetic energy from the base and the beam.
T_{{{\it beam}+{\it base}}}=1/2\,\int...
Homework Statement
near-field distance attenuation follows an inverse cube law (1/d^3), while in the far-field it follows inverse law (1/d). Prove mathematically how we arrive at 60dB/decade from the inverse distance cube relation and 20dB/decade from the inverse distance
relation...