a disk of a radius 50 cm rotates at a constant rate of 100 rpm. what distance in meters will a point on the outside rim travel during 30 seconds of rotation?​

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

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

An object is placed in front of a concave mirror between the pole and the focus of the mirror, what is the nature of the image formed by the mirror