2 In the opposite figure, when the ball of the pendulum
moves from (X) to (Y) in a duration of 0.02 seconds, the
frequency equals Hertz.

If scientists only detect p waves in a certain layer of earths interior what does that tell us?

Fertility and mortality rates are higher in more developed nations.

In yusel komunnyakaa's camouflage the chimera what is a chimeraa animal coming to vietnamb a type of military outfitc mythological creatured nick name for military units