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A water tank, 22 ft in diameter, is made from steel plates that are ½ in. thick. Find the maximum height to which the tank may be filled if the circumferential stress is limited to 6000 psi. The specific weight of water is 62.4 lb/ft.
Steam at 3.45 MPa, 260oC enters a well-insulated valve operating at steady state with a mass flow rate of 0.05 kg/s through a 2.54 cm diameter pipe. The steam expands to 1.40 MPa with no significant change in elevation.
A 1.4 mF capacitor has initial voltage of 19 V.The energy stored in the capacitor is used to light up a 0.5 KOhm lamp.Assuming that the lamp is completely dimmed when the current through it is less than 0.4 mA, for how long can the capacitor susta..
Derive the relationship between the voltage across the 1 resistor and the magnetic intensity, H. Hint: explore the relationship between magnetomotive force and magnetic intensity as discussed in the overview.
Consider a square house 40 ft on a side, 10 ft high, with a flat roof on top and walls/roof that is 8 inches thick. The thermal conductivity for an un-insulated wall or roof is 1.6 W/Km, while with fiberglass insulation its 0.04 W/Km.
Assume that one of the pumps uses a1/4hp DC shunt motor with an input voltage of 115VDC that pulls 1.6A running at 1500 rpm. The filed resistance for the motor is 600 ohms and the armature resistance is 8.5 ohms. Find the constant KT for the motor..
A transformer is used to match an 8 ohm speaker to a 500ohm audio line. What is the turns ratio of the transformer what is the input voltage and output voltage when 15W is being delivered to the speaker
Determine the phase relation between V o and i g for the given network if V g = 45sin(317t) and determine v o for the given network
calculate the mmf when the machine operates at rated voltage at full load? PLease explain how to get the solution to this problem?
This washing machine would have a fill cycle to one level, a 10 second wash cycle, a 10 second rinse cycle and then drain. Include a start button, low level switch, high level switch, an agitator motor, a fill valve and a drain valve.
For a given lithium ion battery, it can supply 0.85 ampere-hours, or 850 (mAh) with a constant output voltage of 3.6 (V). How much energy is stored in this lithium ion battery. How much energy is imparted to an electron that flows
(a) Find the slip at the maximum developed torque. (b) If we would like to get the maximum torque at starting (s=1), a method is to add more resistance to the rotor, R2,new=R2,old + Rextra, while the rotor reactance X2 stays the same.
Build and test the operational amplifier summing circuit you designed for the Prelab using 741-type op-amps. Use VA = 2 V and VB = 3 V with power supply rails of ±18 V. Ask your lab instructor to give the correct pin-out of the 741 if necessary.
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