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1. How much work is done when a pen is pushed 26 cm across a level desk with a horizontal force of 0.27 N?

1. How much work is done when a pen is pushed 26 cm across a level desk with a horizontal force of 0.27 N? 2. A 25-kg bag of cement thrown at 2.5 m/s [E] is caught by a person sliding 1.8 m/s [E] on a frictionless surface. If the velocity after the catch is 2.0 m/s, calculate the mass of the person.

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