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## Homework Statement

A relativistic spaceship is moving "horizontally" past Earth at 99% speed of light (c), and the water in the ship's swimming pool rises at 5 m/s. What is the tilt of the water surface with respect to the horizontal, AS OBSERVED FROM EARTH?

## Homework Equations

## The Attempt at a Solution

I tried using simple trigonometry to find the angle between the velocity of the ship and the velocity of the water, but cannot translate this to find an angle between the acceleration of the earth vector and the velocity of the water.

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