What is the term for a hydrocarbon with a sulfhydryl group

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

The movement of electrons between atoms is called an