Recent content by matthewkeating

The Amplitude does not change otherwise energy conservation is violated, since energy delivered by wave is proportional to (amplitude)^2. This may appear to be the case when waves on the sea approach the beach... but actually what is happeneing is the waves are becoming steeper as the wavelength...

With regard to your question about ke rockets and fuel... there is no "absolute" value of kinetic energy... we can only observe changes. W = fd is not really correct. Should be delta W = delta (Fd). Is it true that all observers, irrespective of their frame of reference would be able to...

Wk= Work done in accelerating object Work done = Force x distance If body a is traveling v m/s after 1 second, it is intuitive that it would be traveling with an average speed of v/2 m/s, so in one second it will travel a distance of v/2 m. Now if body B was accelerated under the...

Also the flat bed truck would deccelerate ever so slightly. At last we can understand how "kit" from nightrider drove into the moving truck!