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A scientist evaluates two different digital thermometers. Each has a digital read-out to the nearest one degree, and updates once each second. When the temperature is held constant, the digital display of thermometer A does not change, but the display of thermometer B randomly toggles between three to four adjacent readings (i.e., +/- 2 degrees). For the questions below, assume that the temperature is held constant.
a. What is the largest possible error in an individual reading from A?b. What is the largest possible error in an individual reading from B?c. In a single reading, which provides the "best" information? Explain.d. If 1000 readings are taken with A, what is the standard deviation?e. If 1000 readings are taken with B, what is the approximate standard deviation? (choose from 0.1, 0.5, 2.0 and 4.0).f. If 1000 readings are taken with thermometer B, what is the "typical error between the mean of the readings, and the mean of the underlying process?g. If 1000 readings are taken with each thermometer, which data set provides the "best" information? Explain.h. How many readings must be taken with thermometer A to reliably detect a temperature change of 0.15 degrees? (choose from 10, 100, 1000, 1 million, 1 billion, or "it cannot be done"). Explain.i. Repeat (h) for thermometer B.
A room has four doors and four light switches (one by each door). Sketch a circuit that allows the four switches to control the light - each switch should be able to turn the light on if it is currently off, and off if it is currently on.
A material is found to have a tenth-thickness of 2.3 cm for 1.25-MeV gamma rays. (a) What is the linear attenuation coefficient for this material (b) What is the half-thickness (c) What is the mean-free-path length for 1.25 MeV photons
What is the phase relationship between IC and IL at IS minimum. What is the phase relationship between VC and VL at IS maximum.
What are the exact form of the equations for the 2nd-order step response for the underdamped, critically-damped, and overdamped conditions.
If the work output is 10kW, find the required heat transfer rate from the high to the low temperature source, and the required heat transfer rate to the low temperature source. What is the themal efficiency of the engine
Draw the logic diagram for the following Boolean expressions. The diagram should correspond exactly to the equation. Assume that the complements of the inputs are not available. a.) XYZ+X'Y'+X'Y'
A solar pond consists of a thin layer of fresh water floating on top of a denser layer of salt water. When the salty layer absorbs sunlight it warms up and much of that heat is held there by the insulating effect of the fresh water above it
(e) What is the probability of error if we make hard-decision on each branch and then use majority-logic combining to make the final decision (f) What is the probability of error if we select the "best" two branches, and then use MRC with these two..
design and implement an access control circuit for my research lab. There are two inputs - a key card swipe on the door that produces an ID in the 0.7 range, and a day/night sensor that is 1 during the day, and 0 at night.
A wind speed sensor generates an output voltage that ranges between 10 to 55 mV when the wind speed varies from 0 to 120Km/Hr.The output of the sensor is connected to an Analog to Digital Converter (ADC) through a signal conditioning circuit.
A square wave has a max value of 22 volts, a min value of -46 volts, and a frequency of 44 Hz. Note that it is not centered around the t-axis. what is its rms voltage?
The transfer function of a system is formulated as H(f)=2f^2+i3f+2. Calculate the output signal for the input signal below which was applied to this system Vin(t)= 5+2cos(20(pi)t+30degrees)+sin(10(pi)t)
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