The 5.50 cm long second hand on a watch rotates smoothly. what is its angular velocity? what is the speed of the tip of the hand?

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

Atomic nuclei of almost all elements consist of

What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud