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The maximum radius a falling liquid drop can have without breaking apart is given by the equation:
R = sqrt((sigma/gp))
where sigma is the liquid surface tension, g is the acceleration due to gravity, and p is the density of the liquid. Write a MATLAB program to determine the surface tension in units of joules per meters squared. As a test case, consider the fluid is acetone at 20 degrees Celsius, the maximum radius of a drop is 1 centimeter and the specific gravity of the liquid is 0.785.
Imagine a circuit consisted of two DC power sources of 12 volt and 10 volts. The negative terminals of these power sources are wired together. Assume that the positive terminals of these power sources are labeled as A and B respectively.
Given a course voltage of 10V, a source resistance of 10 ohms, a 10mH inductor, and a 5nF capacitor, choose a load resistance and draw a circuit that will have an underdamped (decaying sine wave) second order transient response.
a. Sketch the spectrum of the original signal and the sampled signal from 0 kHz and 25 kHz. b. Sketch the recovered analog signal spectrum if an ideal lowpass filter with a cutoff frequency of 4 kHz is used to filter the sampled signal. X(f) 10k 2..
the magnetic circuit shown with a mean core length of 52 cm and a cross sectional area of 18 cm^2. the length of the air gap is 0.14 cm. Determine the battery voltage required to obtain a flux density of 1.2 T in the air gap. Use the magnetization..
1.For an impedance equation, such as 15ohms + j60ohms, explain the steps to determine equivalent series and parallel circuits. 2.For a given parallel RC or RL circuit, explain how admittance, current, and phase would change
Calculate the %age second harmonic distortion present in the amplifier's output for a sinusoidal input of 10 mV r.m.s.
In the movement of a robot arm, the arm is commanded to go from position 1 to position 5. Discuss the rise time, the overshoot, the settling time, and the steady-state error as it applies to the movement of a robot arm
A silicon p-n-p transistor has impurity concentrations of 5*10^18, 2*10^17, and 10^16 cm^-3 in the emitter, base, and collector, respectively. The base width is 1.0 um and the device cross-section area is 0.2 mm^2.
A single-phase half-wave rectifier is fed with a triangular signal with period 2 . The maximum positive and negative amplitudes are ± 12 V rms. determine: a) The value of the DC output voltage. b) The percentage of curly
A 120 V separately excited DC Motor is operated at a fixed field current. It has an armature resistance Ra = 10 ohms, and a machine constant K = 0.1 V/rpm. The armature current is 0.5 amps with no load, and 3.0 amps at full load.
Three screws are drawn at random from a lot of 200 screws, 10 of which are deffective. Find the probibility thats the screws drawn will be nen defective in drawing a.) WITH replacement
A GaAs device is dopeed with a donor concentration of 3*10^15 cm^-3, For the device to operate properly, the intrinsic carrier cconcentration must remain less than 5 percent of the total electron concentration.
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