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A particle P moves under the attractive inverse square field F = -(mγ /r2)r^. Initially P is at the point C, a distance c from O, and is projected with speed (3γ /c)1/2 perpendicular to OC.
Find the polar equation of the path make a sketch of it. Deduce the angle between OC and the final direction of departure of P.
A control system consists of an electrical power supply, a standby battery supply which is activated by a sensor and switch if the main supply fails, a hydraulic power pack, a controller, and two actuators acting in parallel
calculate the change in entropy per kilogram as air is heated from 300 to 600k while pressure drops from 400 to 300kpa
consider a small ammonia absorption refrigeration cycle that is powered by solar energy and is to be used as an air
A Carnot heat engine operates between 40C and 320 C. What is the thermal efficiency? if the work output is 200 kJ/kg, what is the quality of state A (in 320C)?
Determine the change in entropy for 1.0 mole of an ideal gas originally confined to one-half of a 5.0-L container when the gas is allowed to expand to fill the entire container at constant temperature.
Horsepower and efficiency of three-phase motor, If a fully loaded 440V, three-phase motor draws 12.4 A at 86% power factor (pf). It's speed is 1730 rpm and its torque output to a mechanical load is 29.1 lb-ft x 1.356 = 39.5 Nm.
a steady-flow diffuser has a 1 cm-diameter inlet and a 1.5 cm-diameter outlet. air enters this diffuser at 6 mpa 300 oc
Taking the walls of basement to be at 5 C also, determine the average velocity of the water in the pipe if the temperature of the water drops by 3 C as it passes through the basement.
when the three blocks are released from rest they accelerate with a magnitude of 0.660 ms2. block 1 has mass m block 2
1. what are dynamic and kinematic viscosities?2. what is shear stress?3. what is the reynolds number and why is it
an adiabatic compressor compresses air from atmospheric pressure and 70 degf at a rate of 10000 acfm actual cubic feet
a water cooler for drinking water should cool 1 ft3h from 65 f to 50 f using a small refrigeration unit with at cop of
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