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Air enters an Otto cycle internal combustion engine at 90.0 kPa and 15.0°C. The engine has a compression ratio of 8.00 to 1. During the combustion process, 3000. kJ per kg of air is added to the air. Assuming a reversible engine, determine
a. The pressure and temperature at the end of each process of the cycle.
b. The engine's cold ASC thermal efficiency.
c. The mean effective pressure of the engine.
Consider a cell that has a magnetic bead attached to it. We will treat the cell as a Kelvin body. Suppose that the magnetic field has been turned on for a very long time and is producing a constant force Fo.
a 200-g block is pressed against a spring of force constant 1.40 knm until the block compresses the spring 10.0 cm. the
We have an RC circuit with a 1.0 mega Faraday capacitor, a 20 kilo-ohms resistor, amd a 9.0 volt battery. what is the voltage between the plates of the capacitor
In the circuit shown below ε = 58.0 V, R5 = 4.00 Ω, R3 = 2.00 Ω, R2 = 2.20 Ω, I5 = 8.40 A, I4 = 5.80 A, and I1 = 11.5 A. Find the current through R2 and R3, and the values of the resistors R1 and R4.
A high-pressure gas cylinder contains 40.0 L of toxic gas at a pressure of 1.70 ? 107 N/m2 and a temperature of 18.0°C. What is the final pressure in the tank, assuming a negligible amount of gas leaks while being cooled
toni has a mass of 43 kg and is moving with a speed of 11.6 ms. assume that air resistance is negligible.a find tonis
A cue ball traveling at 0.80 m/s hits a stationary 8-ball, which moves off with a speed of 0.27 m/s at an angle of 35° relative to the cue ball's initial direction. at what angle will the cue ball be deflected
A wrench is placed at 30 cm in front of a diverging lens with a focal length of magnitude 10 cm. What is the magnification of the wrench
As part of a safety investigation, two 1700 cars traveling at 18 are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.80 to stop, and (b) car that hits a concrete barrier and t..
A magician pulls a tablecloth from under a 200 g mug located 30.0 cm from the edge of the cloth. The cloth exerts a friction force of 0.100 N on the mug, and the cloth is pulled with a constant acceleration of 2.90 m/s2
(a) Calculate the exposure rate at a point P 2.8 m from the source on the cylindrical axis. Answer 85 mR/hr (b) What is the exposure rate at P with the thick shield removed? 220 mR/hr
A 5.05-kg ball of clay is thrown downward from a height of 2.77 m with a speed of 4.61 m/s onto a spring with k = 1730 N/m. Find the total work done on the clay during the spring's compression
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