A juggler has three objects in the air simultaneously. The masses of the objects are m, 2m, and 3m. At a particular instant, their respective vertical velocities are , 0, and - , where positive velocity is upward. What is the magnitude of the acceleration of the center of mass of the three-object system at this instant

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.