What mechanical waves needs a medium to travel through?

a. all mechanical waves need a medium to travel through
b. surface waves only
c. transverse and longitudinal waves only
d. longitudinal and surface waves only

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

Read "who built the pyramids? ”. leave this link open while you answer the questions throughout the assignment. give at least two reasons why some people claim the pyramids of giza were constructed by aliens.