PROVIDENCE, R.I. -- Some Rhode Island schools are still closed in the wake of a storm Sunday that has left 38,077 National Grid customers still without power as of Wednesday morning.In several communities, some schools were able to open while others remain closed. For Example, in Coventry, there's no school at Coventry High School, but all other schools are open.Some businesses and town buildings, such as the North Kingstown Senior Center, are also closed.