Why is niels bohr’s atomic model superior

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?

Aseismic wave is energy released as the result of rock movement along a fault. t or f ?