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A power cycle operating on 2kg of ideal argon (a closed thermodynamic system) consists of 3 parts:
A reversible isochore from an equilibrium state at P1= 1 bar, t1=100C to an equilibrium state at t2=300C followed by a adiabatic isentropic expansion to P3=1 bar, followed by a reversible isobaric compression back to state 1. Find the thermal efficiency of the cycle. Sketch the P-v and T-s diagrams of the cycle.
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the stimulated emission wavelength
An archer shoots an arrow with a velocity of 30 m/s at an angle of 20 degrees with respect to the horizontal. What is the initial speed of the apple
Initially, the translational rms speed of a molecule of an ideal gas is 460 m/s. The pressure and volume of this gas are kept constant, find the final translational rms speed of the molecules
Young's Double Slit Experiment is performed with 589 nm light and a distance of 2.00 m between the slits and the screen. The fifth interference minimum is observed 7.50 mm from the central maximum. Resolve the spacing of the slits.
A running back with a mass of 82 kg and a velocity of 9 m/s (toward the right) collides with, What is the velocity of the tackle before the collision
With a 0.100 kg mass at 0.10 m and 0.200 kg mass at 0.95 m suspended on a meter stick, the postion of the support when balance is achieved is 0.620 m. Calculate sum of counterclockwise moments about the end of the meter stick
A baseball leaves a pitcher's hand horizontally at a speed of 156km/h. The distance to the batter is 18.3 m. (overlook the effect of air resistance.) (a) How long does ball take to travel the first half of that distance? (b) The second half? (c) H..
Iced tea is made by adding ice to 2.4 kg of hot tea, initially at 70?C. How many kg of ice, initially at 0?C, are required to bring the mixture to 10?C? (Lf = 3.33×105 J/kg, cw = 4,186 J/kg•? C)
A capacitor should have charge of magnitude 4.5 microC on each plate, and an electric field of 2.0 kV/mm between the plates
At a certain time an object's position was observed to be 10 meters due west. 4 seconds later the position was observed to be 5 meters due east
Suppose you slowly, and at constant speed, lift a book of mass of 1 kg from the floor to a shelf 2 m above the floor. What is the workd by you done on the book
A person of mass 79kg stands at the center of a rotating merry-go-round platform of radius 3.3m and moment of inertia 830kg*m^2. Calculate the angular velocity when the person reaches the edge
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