Which best explains why sound travels fastest through a solid?

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader

You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?

Me with this and you will be marked brainliest