# Are gravitational waves involved?

**Classical Mechanics**Level 5

Let the gravitation field of part 1 be 1000 units and that of part 2 be E. Let the plane make an angle \(60 ^ \circ\) with the vertical plane. Find \( \lfloor E \rfloor \).

**Clarifications**:

\(AB\) is one of the diameter and is in the horizontal plane.

The dotted line other than \(AB\) denotes the vertical plane.

The figure is a solid hemisphere.