A motorcycle is A)statically stable and dynamically unstable

B) both statically and dynamically stable

C) both statically and dynamically unstable

D) statically unstable and dynamically stable

Idon’t quite understand this problem

Explain why electric current cannot exist if a current doesn't have a voltage source.

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