4.
已知函数\(f(x)=A\sin (ωx+φ)(x∈R,A > 0,ω > 0,0 < φ < \dfrac{π}{2}) \)图象如图,\(P\)是图象的最高点,\(Q\)为图象与\(x\)轴的交点,\(O\)为原点\(.\)且\(\left| \overrightarrow{{OQ}} \right|{=}\dfrac{8}{3}\),\(\left| \overrightarrow{{OP}} \right|{=}\dfrac{\sqrt{13}}{3}\),\(\left| \overrightarrow{{PQ}} \right|{=}\sqrt{5}\).
\((1)\)求函数\(y=f(x)\)的解析式;
\((2)\)将函数\(y=f(x)\)图象向右平移\(\dfrac{4}{3}\)个单位后得到函数\(y=g(x)\)的图象,当\(x∈[0,2]\)时,求函数\(h(x)=f(x)·g(x)\)的最小值及其对应的\(x\)的值.