part 1 of 3 Your respon A mover's dolly is used to deliver a refriger- ator up a ramp into a house. The refrigerator has a mass of 115 kg, the ramp is 1.9 m long and rises 0.342 m. The mover pulls the dolly with constat velocity and with a steady force of 510 N up the ramp. The dolly and ramp constitute a machine. What work does the mover do? The accel- eration due to gravity is 9.8 m/s2 Answer in units of J. II Answer in units of J Your res part 2 of 3 What gravitational potential energy is gained by the refrigerator? Answer in units of J. Answer in units of J Your response. part 3 of 3 What is the efficiency of the machine? Answer in units of %. Answer in units of \%

part 1 of 3 Your respon A mover's dolly is used to deliver a refriger- ator up a ramp into a house. The refrigerator has a mass of 115 kg, the ramp is 1.9 m long and rises 0.342 m. The mover pulls the dolly with constat velocity and with a steady force of 510 N up the ramp. The dolly and ramp constitute a machine. What work does the mover do? The accel- eration due to gravity is 9.8 m/s2 Answer in units of J. II Answer in units of J Your res part 2 of 3 What gravitational potential energy is gained by the refrigerator? Answer in units of J. Answer in units of J Your response. part 3 of 3 What is the efficiency of the machine? Answer in units of %. Answer in units of \%