Even if we do not send people to far-flung planets, we need to send some information about ourselves and our planet.
describe what you would put in a space capsule to be found by the inhabitants of another planet and explain why you have chosen those items.

The frequency of a given region of the electromagnetic spectrum ranges from 3 × 1016 − 3 × 1019 hertz. which type of wave is found in this region? a. x-rays b. ultraviolet rays c. infrared waves d. radio waves

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.