12) Sea un disco que gira a 45 rpm, calcula:
a) La velocidad angular y lineal de todos los puntos del disco que disten 1 cm del centro de
rotación.
b) La velocidad lineal y angular de los puntos que disten 5 cm del centro de rotación.
c) Cuál tiene mayor aceleración normal.
d) El período y la frecuencia de este movimiento.

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

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?