sigh* if you are nice you wont go to my question i posted before i posted this one, pls dont go if you do i will die so pl dont go to that question, just saying because everytime i post a question everyone goes to my other ones, and theres one i dont want peple going to so pl dont go to that question

Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere

One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.

Each line (unit) on the horizontal axis represents: 5 years 10 years 20 years all of the above