In a hydraulic system, a piston with a cross-sectional area of 21 square
centimeters pushes on an incompressible liquid with a force of 38 newtons.
The far end of the hydraulic pipe connects to a second piston with a
cross-sectional surface area of 100 square centimeters. What is the force
on the second piston?

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.