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1) A Carnot engine has a power output of 150 kW. The engine operates between two reservoirs at 20.0C and 500C. How much energy does it absorb per hour?
2) The internal energy in a monatomic ideal gas is 2.00 * 10^4J. The volume of the gas is 2.00 liters. What is the pressure in the gas?
3) A uniform plank with a length of 6.00 m and a mass of 30.0 kg rests horizontally across two horizontal bars of a scaffold. The bars are 4.50 m apart and 1.50 m of the plank hangs over one side of the scaffold. How far can a painter with a mass of 70.0 kg walk on the overhanging part of the plank before it tips?
A distribution transformer is used to supply a household. below. The load consists of eight 100-W bulbs, a 350-W TV, and a 15-kW kitchen range. If the secondary side of the transformer has 72 turns
A cube ( each side of the cube has length 15 mm. ) of germanium passes a current of 25 mA when 9 mV is applied between two of its parallel faces. Assuming that the charge carriers are electrons that have a mobility of 0.39 m2 V-1s-1
Air at 25°C flows over a 10-mm-diameter sphere with a velocity of 25 m/s, while the surface of the sphere is maintained at 75°C (a) What is the drag force on the sphere?
A variant of the binary symmetric communication channel is called a binary erasure channel. The transmitter sends a ‘0' or ‘1,' but at the receiver there are three possibilities: a ‘0' or ‘1' or ‘undecided bit (called erasure)' rec..
Questions 1. Describe what is meant by the voltage gain of an amplifier 2, What is the primary purpose of a coupling capacitor ub transistor amplifiers?
An N-type silicon substrate with the doping density of 1x10 15 cm-3 Arsenic is to be converted into p-type by Boron diffusion, so that the resistivity at T=75C is 5 O-cm. All atoms are fully ionized.
A ripple carry adder is made of full adder cells each having 1 unit of combinational delay. To convert a four-bit ripple carry adder into a four stage pipeline adder proceed as following.
A 5mm-long 100W microstrip line with velocity factor of 0.4 is used to fabricate a resonator at 3GHz. It is connected to an inductor at one end. Determine whether the other end of the microstrip line should be short circuited
A certain cache has an access time of 2 nanoseconds and a hit percentage of 95%. If the main memory access time is 8 nanoseconds, what is the average access time for a read operation?
Assume initially that no inputs have been seen and create a special initial state with output 0 to start the Moore machine. Draw a state graph for a Moore machine (minimum number of states is 5).
Approximately how many harmonics terms are required in the Fourier Series of a bipolar square wave with 50% duty cycle and amplitude A to represent 99% of its power?
The 4:1 multiplexer function has four data inputs A,B,C,D, two select control inputs S1,S0 and a single positive-logic output Z that operates as follows. When S1,S0 = 00 gates A to Z; S1,S0 = 01 gates B toZ; S1,S0 = 10 gates C to Z
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