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Two spherical planets P and Q have the same uniform density , masses , and surface areas A and 4A, respectively. A spherical planet R also has uniform density and its mass is . The escape velocities from the planets P, Q and R, are , respectively. Then
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| Question Text | Two spherical planets P and Q have the same uniform density , masses , and surface areas A and 4A, respectively. A spherical planet R also has uniform density and its mass is . The escape velocities from the planets P, Q and R, are , respectively. Then |
