A 2. 4-kg ball falling vertically hits the floor with a speed of 2. 5 m/s and rebounds with a speed of 1. 5 m/s. What is the magnitude of the impulse exerted on the ball by the floor?.

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Aschool cafeteria has 40 tables. 35% of the tables have 8 chairs at each table. the remaining 65% of the tables have 6 chairs at each table. complete the model. then complete the statements to find the total number of chairs in the cafeteria.

Should teachers be allowed to have guns at school? why or why not?