5. The acceleration of a body of mass 5 kg pulled on a horizontal surface by a force of 70 N when the coefficient of kinetic friction is 0.4 is...
A. 19.6 m/s?
B. 50.4 m/s?
C. 10.1 m/s?
D. 14.0 m/s2​

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.