Match the object with how the light is being produced

_Incandescnece
_Electric discharge
_Phosphorescnce
_Fluorescnece
_chemiluminescence
_Triboluminescence
_LED

a. fireflies
b. smashing crystals
c. light from a candle
d. glowsticks
e. highlighters
f. neon signs
g. glow In the dark stickers
h. monitors using semi-conductors

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th