What was the speed of the straw when it hit the tree
After a tornado, a 0.55-g straw was found embedded 2.8 cm into the trunk of a tree. If the average force exerted on the straw by the tree was 70 N, what was the speed of the straw when it hit the tree?
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A girl is standing at the edge of a cliff 201 m above the ground. She reaches out over the edge of the cliff and throws a rock straight upward with a speed of 6.17 m/s. a)How long does it take the rock to hit the ground? b)What is the speed of th
For a damped oscillator with a mass of 170 g, a spring constant 140 N/m and a damping coefficient of 69 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 27 cycles?
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If the average force exerted on the straw by the tree was 70 N, what was the speed of the straw when it hit the tree?
David is driving a steady 28.0 {rm m/s} when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 {rm m/s^2} at the instant when David passes.
A 9300 kg boxcar traveling at 21 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 13 m/s. What is the mass of the second car?
What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V maximum potential difference operating at 5000 rad/s?
Assuming the can to be a cylinder with a height of 12 cm and a diameter of 6.6 cm , find the net inward force exerted on the vertical sides of the can due to atmospheric pressure.
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