Which of the following has the largest momentum? A)a 17kg bowling ball motionless in the gutter B)a 7kg bowling ball moving down the lane at 2m/s
C)a 2kg bowling sitting high up on a shelf D)a 3 kg bowling ball moving down the lane at 4m/s
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Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive