How litmus paper could be used to determine if an unknown sample of liquid is an acid or an alkai.

Which statement correctly describes the relationship between frequency and wavelength?

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical