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An air-standard Diesel cycle has a compression ratio of 18.2. Air is at 27 ºC and100 kPa at the beginning of the compression process and at 1700 K at the end of theheat addition process. Using constant specific heats at room temperature, determine (a)the cutoff ratio, (b) the heat rejection per unit mass, and (c) the thermal efficiency.
Eight equal blocks are kept together side by side. A man exerts a horizontal force F on block 1(from the side). Find what is the ratio of the force exerted by block 1 on block 2 to the force exerted by block 7 on block 8
A train departs at 12:00:00 noon. Your watch shows 12:00:00 noon when the last but one passenger car just started passing in front of you. How much behind is your watch
A 3.1 kilogram block of wood sits on a table. A 3.0 gram bullet, fired horizontally at a speed of 450 meter per second, Evaluate the speed of the block immediately after the bullet exits
A weight lifter raises a 1093 N weight a vertical distance of 1.60 m in a time interval of 2.05 s. Compute the power provided by the weight lifter's force
A mixture of 150 g of ice and 300 g of water is at 0 degressC. How many joules f heat energy must be transferred to brind thismixture to a final temp of 75 degress C
The critical angle of a certain material (say, a piece of glass of unknown refractive index n) in air (refractive index of air is 1.0) is 400. Determine the critical angle of the same glass
a 890kg electric car uses a 270v battery pack. as the car accelerates from rest 450c flows from the battery. whats the
Calculate the force a piano tuner applies to stretch a steel piano wire 7.70 mm, if the wire is originally 0.850 mm in diameter and 1.30 m long
A doubly charged helium atom whose mass is 6.6 * 10^- 27 kg is accelerated by a voltage of 2400 V. What will be its radius of curvature if it moves in a plane perpendicular to a uniform 0.390 -T field? What is its period of revolution?
A 0.170-A current is charging a capacitor that has circular plates 15.0 cm in radius. The plate separation is 4.00 mm. What is the time rate of increase of electric field between the plates
In an early test of sound propagation through the ocean, an underwater explosion of 1 pound of dynamite in the Bahamas was detected 3200 away on the coast of Africa
Automobile windshield wipers can be used intermittently during rainfall. what determines the length of the intervals when the wiper is on and when it is off
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