... IntheUnitedStates,byact of Congress,thepoundmassis defined interms of the mass of thestandardkilogram,butinEnglandthepoundmass isthemass of acertainblock of platinumpreservedattheStandardsOffice ... systemthecentimeter,the unit of length,is one hundredth of ameter;thegram,the unit of mass,isone thousandth of akilogram;andthedyne,the unit of force,is onehundred-thousandth of a newton.It ... makea90-degreeturn with a radius of curvature of 20feet.10-8. Find the radial acceleration of anapplewhichisbeingwhirledontheend of astringin ahorizontalcircle of 60 centimetersradius,ifit...