Merry-go-rounds are a common ride in park playgrounds. The ride is a horizontal disk that rotates about a vertical axis at their center. A rider sits at the outer edge of the disk and holds onto a metal bar while someone pushes on the ride to make it rotate. Suppose that a typical time for one rotation is 6.0 s and the diameter of the ride is 16 ft.

For this typical time, what is the speed of the rider in m/s? Express your answer in meters per second. V AEV O ? m /s Submit Request Answer Part B What is the rider's radial acceleration, in m/s27 Express your answer in meters per second squared. V AED + O 2 Grad Submit Request Answer
Part C What is the rider's radial acceleration if the time for one rotation is halved? Express your answer in meters per second squared. tad m/s2 Submit Request Answer

How do the measurements of charge at the different locations on the sphere compare to each other? the charge measurements are different at all locations on the sphere. the charge measurements are virtually not the same at all locations on the sphere except for the charge at the very top and at the very bottom that are equal. the charge measurements are virtually the same at all locations on the sphere except for the charge at the very top. at the top, the conductive sphere has a small disk that is made of different material. the charge measurements are the same at all locations on the sphere. what happens to the charge on the conductive sphere when it is connected to a source of charge such as the electrostatic voltage source? nothing will happen because no charge goes around the surface of the sphere. the charge on the conductive sphere spreads out over the surface of the sphere; being greater in some specific locations on the sphere. the charge on the conductive sphere spreads out uniformly over the surface of the sphere. the charge on the conductive sphere spreads out non-uniformly over the surface of the sphere.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?