Which of these is an example of energy? A. wind blowing
B. water in a glass
C. a can of vegetables
D. the walls of a building

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

15. give an example for some particles or waves that are moving faster than light in everyday life 16. what is a laser? 17. what is an oscilloscope? 18. what does it means practically that nothing is faster than light in vacuum? 19. what is vacuum?

Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?