Which statement is true about the speed of light waves in a medium? depends on the temperature of the light wave decreases with a decrease in density of medium decreases with an increase in density of medium depends on the angle at which the wave strikes the medium

Asimply means that over time there was some sort of change.

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?

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.