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12 Kw
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Onan Generator 12 kw AC Air Conditioner HeaterPortable Emergency Power Unit    US $5,995.00

12 KW ST Generator Head 1 Phase for Diesel Gas Engine    US $505.00

OLYMPIAN NATURAL GAS GENERATOR MODEL G12U1 RATED 12KW    US $5,500.00

New 12 kW PTO Tractor Driven PTO Generator 540 RPM    US $975.00

10 kw 12 kva silent type water cooled generator    US $2,999.00

12KW Silent enclosure Diesel Genset In FL Warehouse    US $3,895.00

300 KW Kato Generator with 12V71 Detroit Diesel Engine    US $17,500.00

Kohler Residential Standby Generator 14 kW LP 12 kW NG Dual Fuel 14RESL    US $3,899.99

Waukesha 600 kW 12 cyl Diesel Generator Only 379 hrs    US $29,500.00

100 KW Diesel generator 12 wire 240 480 volts    US $9,995.00

New 12 kW Perkins Diesel Generator Made in the USA    US $7,011.00

New 12 kW Isuzu Mil Spec Diesel Generator Enclosed    US $10,838.00

BRIGGS STRATTON 12 kW Standby Home Generator New    US $3,200.00

KATOLIGHT DIESEL GENERATOR 60KW 277 480V 12 WIRE ONLY 350 HRS READY TO GO    US $9,500.00

12 KW PTO Generator    US $2,200.00

Honeywell 12KW Generator Sync Nexus controller by Generac SE transfer switch    US $2,699.00

ST 12KW Green Brush Alternator Generator Head 120 240 V    US $505.00

15 KVA 12KW Silent Diesel Generator BRANDNEW in warehouse    US $4,500.00

Voltmaster PTO15 12 PTO 12 kW Generator Shaft Hitch Package FREE SHIPPING    US $2,134.38

General Motors Detroit Diesel 225KW Generator 12V71 Work Horse    US $16,000.00

ST STC Generator Alternator head Metal Fan 5KW 12KW    US $11.95

Generator end 100 KW GE Brushless 12 lead used in good condition SAE 0 SP 114    US $2,500.00

ST 12KW PTO Gearbox and 42x42MM Coupler Combo    US $887.00

NEW MTU 125 150 KW GENERATOR JOHN DEERE MARATHON KATOLIGHT 12 LEAD NEW    US $28,000.00

750 KW EMD Generator V 12 GM Diesel Low Hours    US $79,500.00

Briggs Stratton Standby Generator w 100A SED Transfer Switch 12 kW LP 11 kW NG    US $3,699.99

Briggs Stratton Standby Generator w Transfer Switch 12 kW LP 11 kW NG    US $3,599.99

PORTABLE GENERATOR 12500 Watt 125 kW 120 240V 20 Hp Electric Start    US $2,687.00

Honeywell 12KW Generator Sync Nexus controller Generac 200A SE transfer switch    US $2,999.00

work and power problems?

here's the question:
An elevator lifts 5 people 20m in 15 s. The power is 12 kW. What is the total weight of the elevator and passengers?

Power = work done/time taken. So the work done is 12,000/15 = 800J
Work done=Force x distance moved. So Force = 800/20 = 40N
Weight of elevator and passengers = 40 N (remembering that weight is a force which is = mass x acceleration due to gravity)