An object is made of glass and has the shape of a cube 0.12 m on a side, according to an observer at rest relative to it. However, an observer moving at high speed parallel to one of the object's edges and knowing that the object's mass is 3.4 kg determines its densi to be 8700 kg/m³, which is much greater than the density of glass. What is the moving observer's speed (in units of c) relative to the cube? ホーム Rest frame of cube Kylo Rest frame of observer

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An object is made of glass and has the shape of a cube 0.12 m on a side, according to an observer at rest relative to it. However, an
observer moving at high speed parallel to one of the object's edges and knowing that the object's mass is 3.4 kg determines its density
to be 8700 kg/m³, which is much greater than the density of glass. What is the moving observer's speed (in units of c) relative to the
cube?
Rest frame
of cube
KL-Lo
Rest frame
of observer
Transcribed Image Text:An object is made of glass and has the shape of a cube 0.12 m on a side, according to an observer at rest relative to it. However, an observer moving at high speed parallel to one of the object's edges and knowing that the object's mass is 3.4 kg determines its density to be 8700 kg/m³, which is much greater than the density of glass. What is the moving observer's speed (in units of c) relative to the cube? Rest frame of cube KL-Lo Rest frame of observer
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