Please solve the following and show instructions. The answers are written at the end of each question, thank you!

9 ) A box that weighs 575N Is lifted a distance of 20 m straight up by a rope . The job is done in 10s . what power is developed in watts and Kilowatts ? 1150 w / 115 KW 10) A rock climber wears a 7.50 ng Knapsack while scaling a cliff. After 30 min the climber is 8.2m above the starting point . a ) How much work does the climber do on the Knapsack ? 6 * 102 b ) The Climber weighs 645N , how much work does she do lifting her and the Knacksnap ? 5. 9 x 103 J ( ) What is the average power developed by the climber ? 3. 3 w 11) An electric motor developes 65 KW of power as it lifts a loaded elevator 17,5m in 35s . How much force does the motor exert ? ( 13 x 105 N )