Two spherical planets P and Q have the same uniform density ρ

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Two spherical planets P and Q have the same uniform density ρ, masses Mp and MQ and surface areas A and 4A respectively. A spherical planet R also has uniform density ρ and its mass is (MP+MQ). The escape velocities from the planets P, Q and R are VP VQ and VR respectively. Then
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Oct
Two spherical planets P and Q have the same uniform density ρ, masses Mp and MQ and surface areas A and 4A respectively. A spherical planet R also has uniform density ρ and its mass is (MP+MQ). The escape velocities from the planets P, Q and R are VP VQ and VR respectively. Then masses [...]
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Tags: masses Mp and MQ and surface areas A and 4A respectively. A spherical planet R also has uniform density ρ and its mass is (MP+MQ). The escape velocities from the planets P , Q and R are VP VQ and VR respectively. Then , Two spherical planets P and Q have the same uniform density ρ ,