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A materials engineer wants to study the effects of two different processes for sintering copper (a process by which copper powder coalesces into a solid but porous copper) on two different types of copper powders. From each type of copper powder, she randomly selects two samples and then randomly assigns one of the two sintering processes to each sample by the flip of a coin. The response of interest measured is the porosity of the resulting copper. Explain what type of study this is and why.
An 8cm diameter hydraulic cylinder has a 4cm diameter rod. If the cylinder receives flow at 100Lpm and 12MPa, find the a) Extension and retraction speeds b) Extension and retraction load-carrying capacities
Experiment by changing the amplitudes of the modulating tones, and by adding a third tone to the modulating signal. First establish what you expect , then confirm by computer simulation.
An amplifier using balanced power supplies is known to saturate for signals extending within 1.2 V of either supply. For linear operation its gain is 500 V/V. What is the rms value of the largest undistorted sine-wave output available,
Reference the textbook problem 6.12. Design a system using the photoconductive cell in Figure 6.9 to measure and display light intensity. Make the design such that 20 to 100 mW/cm2 produces an output of .2 to 1.0 V. What is the readout error w..
How would a radio work if, say, broadcast stations used Frequency Hopping Spread Spectrum or Direct Sequence Spread Spectrum? Explain your answer.
A) Determine the individual residues at the single poles at s = 0 and at s = -1 B)determine the two residues at the complex conjugate poles C) using the inverse laplace transform of the single poles and the complex conjugate poles determine the time..
A circuit consist of two impedance,Z1=50/_45 ohms and Z2=25/_30 ohms, connected in parallel. They are supplied by a source whose voltage is V=50/_0 volts. Determined follows 1. the current drwan by each impedance
A random current is described by the sample space S ={ -4 = i = 12}. A random variable X is defined by (a)Show, by a sketch, the values x into which the values of i are mapped by X. (b)What type of random variable is X
The objective of this laboratory is to study and implement speed control of a dc motor.
Knowing that W = 12 kN, draw the shear and bending-moment diagrams for beam AB and determine the maximum normal stress due to bending.
Determine V0 and i in the given Circuit.
In the system shown below Block A has a mass of 15kg and Block B has mass 5k2. It is measured that the tension in the cable is 40N. Determine the acceleration of Block A and the coefficient of kinetic friction between Block A and the ground (negle..
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