You have a motion security light by your door cat runs across the in the light turns on what is the input of the system and what is the output

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

Emergent properties of living systems are defined as properties that .

Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.