Let \(X(t)=A \sin (\omega t+\Phi)\), where \(A\) and \(\Phi\) are independent, non-negative random variables with \(\Phi\) uniformly distributed over \([0,2 \pi]\) and \(E(A)<\infty\).

(1) Determine trend, covariance, and correlation function of \(\{X(t), t \in(-\infty,+\infty)\}\).

(2) Is the stochastic process \(\{X(t), t \in(-\infty,+\infty)\}\) weakly and/or strongly stationary?