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An object of mass m = 0:1 kg is dropped from a high tower. Suppose the magnitude of the force due to air resistance is 0:98v2. (The gravitational constant is g = 9:8 m s2 ).a) Write down the dierential equation satised by velocity.b) How long does it take the object to acheive half of its terminal velocity?
Assume all the capacitors in the circuit below were discharged prior to assembly. The capacitors, resistors, and voltage sources are then arranged as shown in the circuit below. The circuit is then allowed to stabilize.
Point charge 1.5{\rm \mu C} is located at x = 0, y = 0.30 {\rm m}, point charge -1.5{\rm \mu C} is located at x = 0 y = -0.30 {\rm m}. What are (a)the magnitude and (b)direction of the total electric force that these charges exert on a third point..
single phase motor draws 20A from a 200V, 50Hz supply with a lagging power factor of 0.8. Calculate the value of the capacitance needed to bring the current in phase with the voltage.
Gaussian White Noise with Power Spectral Density Sn(f) = 10 mu W/Hz is applied to a linear system with impulse response h(t) = exp(- |5t|)u(t)cos(2 phi 10t) Write the equation for the Power Spectral Density of the noise passed through the system
What is the function of the enable control input of a tri-state buffer If the output of two or more tri-state buffers is connected to each other, what is the restriction on enable control input lines What does happen when this restriction is viola..
Design a circuit that provides a voltage gain of + 3. Draw the circuit schematic identifying supply voltages and show your work on component selection.
Consider the interval [0,30]: y[n+2] - 0.6y[n+1] - 0.16y[n] = 5x[n+2]. a.) Find zero-state response if the input is x[n]= 4^(-n)u[n] b.) Find zero-state response if the input is x[n]= cos(2npi/6)u[n]
If wind power at this site varies as the ratio of heights raised to the 1/7 power, compute the ratio of power in the wind that appears at the tip of the top blade relative to the power that appears at the elevation at the tip of the bottom blades.
A fluid flows through a turbine at the rate of 45 kg/min. Across the turbine the specific enthalpy drop of the fluid is 580 kj/kg and the turbine loses 2100 kj/min in the form of heat energy. Determine the power produced by the turbine.
The message signal x(t), in the following system has a nabdwidth of 10kHz. The center frequecy of the Narrow Band Frequency Modulated (NBFM) signal nbfm(f) is 1Mhz, the frequency deviation f1=1khz and the amplitude of the NBFM signal is 1V.
during winter you use an electric heater rated 1000W . heat transfer occurs through four walls each width of 5m and hight 3m layers of walls are concrete , paint, gypsum. temperature outside is 5 degrees celsius what is the temperature inside the ..
Determine the required-size THW copper conductor and overcurrent device rating required for a dedicated feeder supplying a 250 A noncontinuous linear load. Assume an ambient temperature of 30°C
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