Show that the fractional change in the speed of sound (dv/v) due to a very small temperature change dt is given by dv/v=12dt/t. (hint: start with equation v=γrtm√.)well we start with(gamma(r)/m) = av = sqr a(t) = at^.5dv= .5 at^-.5 dtdv/v = .5dt/tprevious answerssubmitted, grade pendingpart bthe speed of sound in air at 20 ∘c is found to be 344 m/s. use the result in part a to find the change in the speed of sound for a 1.0 ∘c change in air temperature. express your answer using two significant figures.

The answer is b.the gaseous state is electrically positive, while the plasma state is electrically negative. 

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.