well! Its undoubtedly 'no!. The energy imparted to the wall by a car moving with velocity 120 mph doesnot happen to be same as that of two cars moving wid velocity of 60 mph provided that they have same mass...as simple as that!
when we talk about the phenomenon of resonance, we use the term 'natural frequency'. What actually is natural frequency of an object?...what is meant by matching of natural and applied frequency and why does it produce vibration with maximum amplitude?
in peliter's effect heat is evolved in a junction of thermocouple by virtue of electric current. But why can't we consider it as a joule's heating effect?