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A 12-V, 115-Ah automobile storage battery is used to light a 6-W bulb. Assuming the battery to be a constant-voltage source, find how long the bulb can be lighted before the battery is completely discharged. Also, find the total energy stored in the battery before it is connected to the bulb.
Critique a journal article - Windows of operation for bioreactor deign for the controlled formation of tissue - engineered
A pilot state tube is used to measure the velocity of water in a pipe. The stagnation pressure head is 6m and static pressure head is 5m. calculate velocity of flow assuming Cv= .98
Also find the source voltage that would yield I = -8µA.
There are four stable isotopes of iron with mass numbers 54, 56, 57, and 58. There are also two radioactive isotopes: iron-53 and iron- 59. Predict modes of decay for these two isotopes. (See Table 18.2.).
Estimate the rate of corrosion in ipy and mm per year.
If the temperature of the contents is increased by 10 C degrees, the reading on the Kelvin thermometer should increase by 273 K
If the gases leave the tower at 6 atm, 25 °C, and are expanded to, say, 1.5 atm, calculate the turbine exit gas temperatures without preheat, and if the gases are preheated to 400 °C with the reactor off-gas. Also, estimate the power recovered fro..
A three-phase, wye-connected, 2500-kVA, 6600- V, 60-Hz turbo alternator has a per-phase synchronous reactance and an armature resistance of 10.4 and 0.071 Ω, respectively. Compute the power factor for zero voltage regulation on full load.
Determine the properties of the gas-vapour mixture using suitable models. Derive psychrometric relationships for the gas-vapour mixture and create the associated
What number should be in place of the 2 in the denominator for a spectrum to be emitted in the infrared region?
One compartment is evacuated, the other contains steam at 7.5 bar, 300 °C. The latches are removed and the gas expands to fill the entire volume of the cylinder. When the system reaches equilibrium, its pressure is 1 bar. Determine the final tempe..
Now suppose a 10-mm air gap is cut across the toroid. Determine the current that must be supplied to the coil to produce the same value of magnetic flux density as in part (a). You may neglect leakage and fringing.
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