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Question1

Hold switch closed. Place a Magnetic Field Sensor between the turns of the Slinky by its center. Rotate the sensor and decide that direction gives the largest positive magnetic field reading. What direction is white dot on the sensor pointing?

Question2

Get an expression relating impulse and linear momentum? In a safety test, a car of mass 1000 kg is driven into a brick wall. Its bumper behaves like a spring (k = 5 × 106 Nm−1) and is compacted by a distance of 3 cm as the car comes to rest. Establish the initial speed of the car.

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