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.

It is may 5 and you are somewhere in the northern hemisphere. if you determine that the noon sun is 51 degrees above your southern horizon, what is the latitude of your location

Which atomic model was proposed as a result of j. j. thomson’s work?

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?