The question is asking to calculate the mass of the solid piece if it has a volume of 640cm^3 and a density of 755 kglm, base on that, the answer would be that the mass is 1.18 kg. I hope you are satisfied with my answer and feel free to ask for more
Answer:
Explanation:
a) Power consumption is 4100 J/min / 60 s/min = 68.3 W(atts)
work done raised the potential energy
b) 75(9.8)(1000) / (3(3600)) = 68.055555... 68.1 W
c) efficiency is 68.1 / 68.3 = 0.99593... or nearly 100%
Not a very likely scenario.
S s. S s abbs s sbsbs z sbs
The answer is 2.66 x 10^8 J.