Sunglasses have lenses made of dark glass that reduce the amount of daylight entering your eyes. design a test using a light meter and a lamp to find out if the two lenses in a pair of sunglasses are equally effective.

According to the phase diagram for water, how is the state of water determined? proceed up a vertical line at any given temperature read the phase at the intersection of any given temperature and pressure at a given pressure, proceed horizontally to the s-l or l-g line

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.