When two stars are bound together gravitationally and orbit a common mass, they're known as
a. meteoroids.
b. galaxies.
c. constellations.
d. binary stars.

Aball horizontally thrown from a cliff at 8m/s

Six pendulums of mass mand length las shown are released from rest at the same angle theta from vertical. rank the pendulums according to the numberof complete cycles of motion each pendulum goes through perminute. a. l= 1m m=2kg b. l= 4m m=1 kg c. l= 2 m m= 2 kg d. l= 1 m m= 4 kg e. l= 2 m m = 4 kg f. l= 4m m = 4kg

Current vs. forcewhat type of relationship does this graph show?