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A two-cylinder, two-stroke Diesel cycle internal combustion engine with a 16.2 to 1 compression ratio and a total displacement of 1.50 L burns kerosene having a heating value of 40.0 × 103 kJ/kg when using an air-fuel ratio of 25.0 to 1. The intake temperature and pressure are 100. kPa and 15.0°C. When the engine is running at 1200. rpm and producing 6.00 kW of power, determine (assuming k = 1.40) the engine's
a. Cutoff ratio.
b. Cold ASC thermal efficiency.
c. Indicated power output.
d. Mechanical efficiency.
e. Actual thermal efficiency.
A 700 g block is released from rest at height h0 above a vertical spring by spring constant k = 470 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 24.0 cm. How much work is done by the sprin..
Two different waves moving in the same direction on the same string (where x is in cm and t is in s) are out of phase by +Π/3 radians. Determine the displacement (cm) of an element of the string at x =12.0 cm when t=3.00 s.
The New England Merchants Bank Building in Boston is 152 m high. What is the total distance, side to side, that the top of the building moves during such an oscillation
Consider two wind instruments with pipes of the same length, but one is open and the other is closed on one end. what is the fundamental frequency of the closed pipe
a space vehicle is moving at a speed of 0.85c with respect to an external observer. what is the speed of the project as seen by the external observer
a 1000 mw power plant is operated for a year. it has a thermal efficiency of 32 and a utilization factor of 0.8. assume
What would some challenges and benefits be for community health nurses in providing care for different communities? For similar communities?
1. What are the main implications of what is called the end of the cheap money era, on the macroeconomic side ? 2. Can policymakers increase the maximum potential growth of an economy ? If so, how ?
A 12.0 kilogram shell is launched at an angle of 55o above the horizon with an initial velocity of 150 m/s. obtain how much energy was released by the explosion
A chair of mass 10.5 kg is sitting on the horizontal floor; the floor is not frictionless. You push on the chair with a force F = 44.0 N, calculate the normal force that the floor exerts on the chair
Suppose 5.6 moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 250 degree C to -84 degree C. Determine the work done by the gas. Determine the change in its internal energy.
A cold aluminium soft drink can by a capacity of 354 ml is filled to the brim with methanol at a temp of 4.0 degrees Celsius and is then allowed to reach the ambient temperature of 35.4degrees Celsius. (βAl= 75* 10 ^-6 Celsius β methanol= 1100 * ..
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