Why does it make sense that a 9 Liter pot of boiling water has more heat than a 1.5 L pot of boiling water?

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?