For a stationary observer, when the source of sound is moving, its pitch appears to change. t. orf.

The dissociation energy of a molecule is the energy required tobreak apart the molecule into its separate atoms. the dissociationenergy for a particular molecule is 5.48 x 10-18 j. suppose that this energy is provided by a single photon. determinethe (a) wavelength and (b) frequency of the photon

The step-down transformer gives a current of 10a at 24v if the primary voltage is 240v calculate the 1_primary current 2_the power input 3_the power output

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic