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Water at 32.0 °C is sprayed onto 0.127 kg of molten gold at 1063 °C (its melting point). The water boils away, forming steam at 100.0 °C and leaving solid gold at 1063 °C. What is the minimum mass of water that must be used?
A lossless line having an air dielectric has a characteristic impedance of 100 Ohms. Another line that is identical in dimensions to the air line is fabricated with the air displaced by a dielectric material have an \(\epsilon_{r}\) value of 4.
use GPS and they are useful for many reasons. GPS receivers use signals from more than three satellites so that cheap quartz clocks can be used instead of expensive atomic clocks. The quartz clocks tend to drift up to + or -1 ns/s.
Suppose we have a linear function f(X). We are given two points on the line and their values: a, f (a), b, and f(b). Now we need to use linear interpolation to compute the value of a new point f(c).
A 3uF capacitor is charged to 100 V. If it is the connected in parallel with a 10 uF capacitor, what voltage will be across the capacitors
Compare a lumped element model of a lossless transmission line (single L and C) with the distributed model. Use the following values for the transmission line in this comparative analysis.
Design an 8-bit register with 2 control inputs s1 and s0, 8 data inputs I7..I0, and 8 data outputs Q7..Q0. s1s0=00 means maintain the present value, s1s0=01 means load, and s1s0=10 means clear. s1s0=11 means to swap
A linear time-invariant continuous-time system has the impulse response below: h(t) =[cos 2t + 4 sin 2t]u(t) 1. Determine the transfer function H(s) of the system. Use the Laplace transform pairs table for this. 2. Plot the system impulse response..
The switch in the circuit has been in position a for a long time. At t=0 the switch is moved to position b. A.Calculate the initial voltage on the capacitor if v = 200V , and i = 1.9mA.
A three-phase, 2000-kVA, 12-kV, 1800-rpm synchronous generator has a synchronous reactance of 20 ohms per phase and negligible armature resistance.a. The field current is adjusted to obtain the rated terminal voltage at open circuit.
There are 2 stages of pipeline. 1st stage: max delay 6.5ns, min delay 2.5ns. 2nd stage: max delay 5ns, min delay 2ns. Setup time, hold time and flip flop delays = 0.1ns.
1. The electron concentration in the conduction band of a GaAs sample is 10^5/cm^3 at room temperature. Is it p type or n type, how do you know 2. Based on the Kronig-Penny model, would you expect the bandgap of a semiconductor to increase
(a) Determine free electron and hole concentration.(b) Calculate the effective density of states at valence band, Nv. Given that ni = 1x1010 cm3 and kT = 0.026.
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