You have a motion security light by your door. a cat run across it and the light turns on. what is the input of this system and what is the output?

An npn transistor is correctly biased and turned on if the a. base is negative. b. collector is negative. c. collector is positive with respect to the emitter and negative with respect to the base. d. collector is the most positive lead followed by the base.

Does anybody know how to hack into a google account? i had important information on it and it is gone now and i need getting it back.

What type of forensic evidence was recovered during the bomb set off at the new mexico facility on the video that was similar to the evidence obtained at the boston bombings and how did the evidence allow the researchers to connect other pieces of evidence to the same bomb?