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A constant current of 3 A for 4 hours is required to charge an automotive battery. If the terminal voltage is 10+ t/2 ,where t is in hours,
a) How much charge is transported as a result of the charging?
b) How much energy is expanded?
c) How much does the charging cost? Assume electricity cost 9cents/kWH.
a lowpass butterworth filter has a corner frequency of 1 khz and a roll-off of 24 db per octave in the stopband. If the output amplitude of a 3 khz sine wave is .1 V, what will be the output amplitude of a 20 khz sine wave if the input amplitudes ..
Under steady operating conditions, cold water at 15 oC and 200 kPa enters the water heater with a flow rate of 54 kg/min and leaves the water heater at 80 oC and 200 kPa. During its operation the water heater loses heat to its surroundings at the ..
How fast, in rpm, would a 100 g, 50-cm diameter beach ball have to spin to have an angular momentum of 0.10 kg m^2/s
The Y-Connected synchronous motor whos nameplate is shown in Figure 1 has a per-unit synchronous reactance of 0.9 and a per-unit resistance of 0.02. a.) What is the rated input power of this motor
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).
Consider a message signal m(t) containing frequency components at 100, 200, and 400 Hz. This signal is applied to a SSB modulator together with a carrier at 100 kHz, with only the upper sideband retained.
A series combination of two capacitances, valued 0.2 μF and 0.6 μF initially discharged, is charged to 10V. find the charge and energy stored in each capacitance.
A DC machine has the following parameters: Ra =1Ω, La = 4 mH , kPWM = 100 . (a) Design the current loop with a bandwidth of 1000 rad/s and phase margin of 900. (b)Given a step current command, ia*(t) = 5u(t)A, calculate the actual current,i(t)
Sketch a block diagram of the arrangement and calculate suitable values of pad resistance if both the amplifier and the line have a characteristic impedance of 600 Ohm.
A thin ,non conducting line of charge lies along the x axis. One end is at x=-1.00m and the other end is at x=+1.00m. The total charge on the line is 5.00 µC. calculate the vector (magnitude and direction) of the electric field E at point P due to ..
apply the MACDtrading strategy to the closing price of QQQQ for the period from February 1, 2005 through September 1, 2005. What is the netgain over the time period assuming that your first order must be abuy and your last order a sell
A binary waveform of 53000 bits/sec is converted into an 8192 level waveform that is passed through a channel with a raised cosine-rolloff filter characteristic with r = 0.33. The channel bandwidth is what
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