Please answer all questions!

An scissor lift performs 9400 joules of work in a period of 2.4 seconds. How much power is the scissor lift producing? Choose one answer. a) 22,600 W b) 450 W c) 9400 W d) 3900 W A warehouse worker pushes a 19.1 kg box, increasing its speed from rest to 3.40 m/s. This acceleration occurred over a period of 0.933 seconds. How much power did the worker produce? Choose one answer. a) 118 W b) 126 W c) 103 W d) 110 W How much work can a 2.24 KW motor perform in a period of 0.33 s? Choose one answer. a) 740 J b) 2240 J c) 6800. J d) 98 J How long will it take a 35 W motor to perform 115 J of work? Choose one answer. a) 4.0 s b) 3.3 s C) 2.5 s d) 0.30 s