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Vibration of water in a tube. If 1 liter of water (about 1.06 US quart) is vibrating up and down under the influence of gravitation in a U-shaped tube of diameter 2 cm (Fig. 44), what is the frequency? Neglect friction. First guess.
Two random variables have zero mean and variance of 16 and 36. Their correlation coefficient is 0.5. A). find the variance of the sum. B). find the variance of their difference C). Repeat (a) and (b) if the correlation coefficient is -0.5
The business plan for a start up company that manufacures multigas portable detectors showed equivalent annual cash flows of $400,000 for the first 5 years. If the cash flow in year 1 was $320,000 and the increase there after was $50,000 per year
An Electrical System is rated 10kVA, 200V at a .5 leading the power factor. a. determine the impedance of the system in rectangular coordinates. b. find the average power delivered to the system
A 25KVA single phase transformer has 220 turns on the primary and 80 turns on the secondary. The primary is connected to 1500V, 50Hz supply. Calculate primary and secondary currents on full load secondary EMF and maximum flux in the core
For each add instruction in this problem, assume that EAX contains the given contents before the instruction is executed, and give the contents of EAX as well as the values of the CF, OF, SF, and ZF flags after the instruction is executed.
A sequential circuit with two D flip-flops, A and B; two inputs x and y; one output z; is specified by the following next-state and output equations: A(t 1) = x' y x A B(t 1) = x' B x A Z = B a) Draw a logic diagram of the circuit.
TDMA has 416 frequencies in one of the cellular license bands. If a cellular operator designs a network with a 5/15 reuse pattern, how many frequencies per cell (sector) can be supported? ( ignore control channels)
A small circular parabolic reflector, often referred to as dish, is now being advertised as a TV antenna for direct broadcast. Assuming the diameter of the antenna is 1 meter, the frequency of operation is 3 GHz
A 10-mV signal source having an internal resistance of 100 k Ohm is connected to an amplifier for which the input resistance is 10 k Ohm, the open-circuit voltage gain is 1000 , and the output resistance is 1 k Ohm.
by finding the relevant air analysis determine the partial pressure of nitrogen in the athmosphere at 1.00bar.f a
An hemisphere shell of radius R has a uniform surface charge density σ. The shell spins about its axis at angular frequency ω. Calculate the charge dq lying on the circular strip θ--> θ + dθ at radius R and colatitude θ.
Let a 4x inverter have transistors four times as wide as those of aunit inverter. If a unit inverter has three units of inputcapacitance and parasidic delay of pinv, what is the input capacitance of a 4x inverter
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