Final answer:
To calculate the depth to which Avogadro's number of table tennis balls would cover Earth, we can find the volume of a single ball and multiply it by Avogadro's number. Then we divide the total volume by the surface area of Earth to find the depth.
Step-by-step explanation:
To calculate the depth to which Avogadro's number of table tennis balls would cover Earth, we first need to find the volume of a single ball. The diameter of the ball is given as 3.75 cm, so we can calculate the radius by dividing the diameter by 2. The volume of a sphere is given by the formula V = (4/3)πr^3, where r is the radius. Once we have the volume of a single ball, we can multiply it by Avogadro's number to find the volume of all the balls. Finally, to find the depth, we need to divide the total volume by the surface area of the Earth.