Gunpowder in a canon explodes and causes a cannon ball to shoot forward. A. The explosion will cause the cannon to move in a backward direction.
B. The explosion will cause the cannon to move in a forward direction.
C. The explosion will cause a force in only one direction.

Heat from the sun reaches earth to a. radiation b. convection c. conduction

Which branches of natural science include the study of an organism that lived 10 million years ago

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.