In 1992, Zhuang Yong of China set a women's Olympic record in the 100 meter freestyle swim with a time of 54.64 seconds. What was her average speed in m/s and mi/h? (1mi =1610m)

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

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

What are the north and south poles of a solenoid change with?