I have severe case of "smiling" depression and a serious case of ADHD. My parents don't know about this and I don't want to tell them bc they are part of the reason of it. They don't do anything bad to me but they fight a lot and get angry at me. I also have thoughts about k*ll*ng myself and hurting myself. What should I do?

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz

When using the scientist method, which step comes last?

Earth's atmosphere is composed of mostly two gases. name the two gases that make up the majority of the atmosphere and use the pie chart to tell the percentages of each.