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a region that has a large number of atoms whose magnetic fields are lined up parallel to a magnet’s field is
a. a ferromagnetic region.
b. a magnetic domain.
c. the magnetic declination.
d. the magnetosphere.

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.