Calculate the applied torque needed to accelerate it from rest to 1750 rpm in 7.30 s . Take into account a frictional torque that has been measured to slow down the wheel from 1500 rpm to rest in 60.0 s .

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.