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Q. A hockey puck moving at 34 m/s slams through a wall of snow 33 cm thick. It emerges moving at 18 m/s.

How much time does it spend in the snow?

How thick a wall of snow would be needed to stop the puck entirely?

Q. An electron accelerated from rest through a voltage of 350 V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 28 cm, what is the magnitude of the magnetic field?

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