Which of the following equations illustrates the law of conservation of matter?
A. 4A1 + 302 → 2A1203
B. 4A1 + O2 → 2A1203
C. 2A1 + 02 → A1203
D. 2A1 + 302 → Al2O3

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack

Which of these is not a possible type of energy transformation? a. electrical energy into light energy b. sound energy into nuclear energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy