To determine the direction in which the block will move, we can analyze the net forces acting on it in the north-south and east-west directions.
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North-South Direction:
- Allie pushes north with 18 N.
- Chris pushes south with 23 N.
- Net force in the North-South direction: \( F_{NS} = 18 , \text{N (north)} - 23 , \text{N (south)} = -5 , \text{N} \)
- This indicates a net force of 5 N to the south (since the result is negative).
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East-West Direction:
- Bill pushes east with 14 N.
- Debra pushes west with 20 N.
- Net force in the East-West direction: \( F_{EW} = 14 , \text{N (east)} - 20 , \text{N (west)} = -6 , \text{N} \)
- This indicates a net force of 6 N to the west (since the result is negative).
The resulting forces show that the block has a net force of 5 N to the south and 6 N to the west. Therefore, the block will move south and west.
So the correct response is: south and west.