The answer is D.
The shapes of the magnetic field lines of a bar magnet are closed. By convention, the direction of the field is taken out of the north pole and entering through the south pole of the magnet.
Answer:
A
Explanation:
According to law of conservation of momentum, the total momentual in the system will be conserved
Answer:
In terms of distance, average speed is 20 km/h
In terms of displacement, average speed is 0 km/h.
Explanation:
Total distance:
Total time is 3.0 hours
but:
In terms of distance.
substitute:
In terms of displacement:
Explanation:
Calculate position vectors in a multidimensional displacement problem. Solve for the displacement in two or three dimensions. Calculate the velocity vector