A 6,00-kg block is in contact with a 4.00-kg block on a horizontal frictionless surface as shown in the figure. The 6.00-kg block is being pushed by a horizontal 20.0-N force as shown. What is the magnitude of the force that the 6.00-kg block exerts on the 4.00-kg block?
A) 8.00 N
B) 20.0 N
C) 10.0 N
D) 6.00 N
E) 4.00 N
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