A solid object is made of two materials, one having a density of 2.00 g/cm3, the other of 6.00 g/cm3. If the object contains equal volumes of the materials, what is its average density

Afigure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 20.9 12000 200 3.33

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?