An object is placed at a distance of 60 cm from a concave lens of focal length 30cm. find the position and nature of the image?

Which lists the organs in the correct order as food passes from the mouth to anus?

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

How is zig zagging a form of acceleration?