QUESTION 7 A couple rearranging their furniture perform 480 J of work while moving their sofa 2.50 m across the living room floor. How much force did they exert? 19.6 N 64.5 N 192 N 1200 N QUESTION 8 An athlete lifting weights raises a 15.6 kg mass 2.12 m into the air. How much work has the athlete performed? 33.1 J 0 72 .1 J 153 J 324 J QUESTION 9 An electric motor operating a fan performs 240 J of work every 60 s. What is the power output of the motor? 4.0 W 60 W 180 W 300 W QUESTION 10 A rope attached to a bucket is used to draw water from a well 11 m deep. A bucket filled with water has a total mass of 8.4 kg. What is the power output required to draw a bucket to the top of the well in 90 s? 10 W Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Ar MacBook Air F3 FA F5 F6 F7 F8 @ % 4 5 6 8 CO O W E R T Y U O