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question a solid sphere and a solid disk of the same mass and radius are rolling wihtout slipping at the same speeda
question storm clouds build up large negative charges as described in the chapter the charges dwell in charge centers
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question a standard biological microscope is required to have a magnification of 200atilde- when paired with a
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question a standard 100 w 120 v lightbulb contains a 70-cm-long tungsten filament the high-temperature resistivity of
question the starter motor of a car engine draws a current of 170 a from the battery the copper wire to the motor is
question you are standing on a train station platform as a train passesslowly throught the station moving with a
question you stand at the top of a deep well to determine the depth d of the well you drop a rock from the top of the
question a speed skater moving across frictionless ice at 92 ms hits a 50 m wide patch of rough ice she slows steadily
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question a small 100 g cart is moving at 120 ms on a friction less track when it collides with a larger 100 kg cart at
question a solenoidal coil with 25 turns of wire is wound tightly around another coil with 320 turns the inner solenoid
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question the siren of a fire engine that is driving northward at 310 ms emits a sound of frequency 2020 hz a truck in
question a single mass m1 4 kg hangs from a spring in a motionless elevator the spring is extended x 12 cm from its