A 500 Newton weight sits on the small piston for a hydraulic machine. The small piston has an area of 2 cm2. If the large piston has an erea of 40cm2, how much weight can the large piston support?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

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.

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?