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Question: A lens forms a real image, which is 214 cm away from the object and 1.67 times its length.
Part A: What kind of lens is this, and what is its focal length.
This is a physic question, reply as soon as possible. Thanks.
A 20-cm-diameter vertical cylinder is sealed at the top by a frictionless 18kg piston. What is the gas pressure inside the cylinder
The position of a rocket sled on a straight track is given as x = a t3 + b t2 + c, What is the sled's average speed between t = 3.48 s and t = 6.92 s
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A physics student is standing on an initially motionless,frictionless turntable with rotational inertia 0.31kg·m2. He's holding a wheel of rotational inertia0.22 kg·m2 spining at 128 rpm about a vertical axis, as we showed inFig. 11.8.
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0618 s, during which time it experiences an acceleration of 326 m/s2. The ball is launched at an angle of 57.3° above the ground. Determine..
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