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An aircraft engine takes in an amount 9000 of heat and discards an amount 6400 each cycle.
a. What is the mechanical work output of the engine during one cycle?
b. What is the thermal efficiency of the engine?
A bat strikes a 0.145-kg baseball. Just before impact, the ball is traveling horizontally to the right at 60.0m/s , Find the vertical component (Fy) of the average force on the ball
A plastic bucket with negligible mass and specific heat holds 2 kg of water at temperature 20c. Find the entropy change of the ice as it cools and freezes into ice
A particle with a rest mass of M=135GeV/c^2 or 1.35x10^11 eV/c^2 decays into two particles (which emerge back-to-back). The speeds of the two particles are measured at v1=.9c and v2=.01c. What are the masses of the two particles?
A shell is shot with an initial velocity v0 of 44 m/s, at an angle of ?0 = 60° with the horizontal. How far from the gun does the other fragment land
A 200 gram metal block absorbs 1500 joules of heat, and its temperature changes by 150 degrees Celsius. What is the specific heat capacity of this metal
A speeding motorist traveling 100km/h passes a stationary police officer. The officer immediately begins pursuit at a constant acceleration of 12km/h/s (note the mixed units).
A train moves at speed v. Bullets are successively fired at speed u (relative to the train) from the back of the train to the front, What is the maximum number of bullets that are in flight at a given instant, in the ground frame
A potential difference is applied between the electrodes in a gas discharge tube. What is the current in the tube
A 1.5 m cylinder of radius 1.1 cm is made of a complicated mixture materials. Its resistivity depends on the distance x from the left and obeys the formula p(x)=a+bx^2, What is the resistance of the rod
Two resistors of wattage 100 W each is connected in series with a source. Find the total watage of load connected in circuit
A resistor of 370 is connected in series with a capacitor of 52.0 µF capacitance. The phase shift between the current and voltage at f = 10.3 Hz is
Two adjacent natural frequencies of an organ pipe are found to be 840 Hz and 910 Hz. Calculate the fundamental frequency and length of this pipe
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