Answer:
The poles of the magnetic field generated around the armature are attracted to the opposite poles of the permanent magnet. As the opposite poles align, the commutator reverses the current direction so like poles are aligned and the armature continues to spin.
Explanation:
Sound waves will either be reflected (echo effect) or absorbed (dissipated) depending upon the material make-up of the barrier
D)<span>As the internal energy increases a substance would go from solid to a liquid.</span>
Answer:
THWB WB WQI B BW W;QQ QY G VQ Q VQVY VAV G UQ U
Explanation:QCGQ G GQUIGI QGUI; V AYDFYAFQAVAVY,
Answer:
0.29713 m/s
Explanation:
m = Mass of person
g = Acceleration due to gravity = 9.81 m/s²
v = Velocity
r = Radius = 18 mm
By balancing the forces in the system we have

The velocity of the coaster is 0.29713 m/s