Describe the luminosity and temperature of the Sun. Where does the Sun belong on the H-R diagram?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents

What about a rubber band, can it change its shape? is it a solid?