A0.50-kg mass attached to the end of a string swings in a vertical circle (radius 2.0 m). when the mass is at the highest point on the circle, the speed of the mass is 12 m/s. what is the magnitude of the force of the string on the mass at this position?

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

What is a good example of instantaneous speed

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