Pick five people for a committee
How many ways are there to pick five people for a committee if there are six (different) men and eight (different) women and the selection must include at least one man and one woman?
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Two point charges of 30 nC and -40 nC are held fixed on an x axis, at the origin and at x = 76 cm, respectively. A particle with a charge of 42 µC is released from rest at x = 28 cm. If the initial acceleration of the particle has a magnitud
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A fully loaded plane weighs 200,000 lbf as it lands at a speed of 125 mph. The mass of the brakes on the plane is 200 lbm and the brake assembly has an equivalent specific heat of 0.20 Btu/lbm ·°R.
A spherical ballon with radius 1.0m consists of an aluminum coated Mylar. How many electrons must be deposited on the aluminum layer such that the resulting electric pressure is equal to one atmosphere.
A feeder heater extracts steam from a turbine at 600kPa and 250C which it combines with 0.3 kg/s of liquid at 600 kPa and 150C. The exhaust is saturated liquid at 600 kPa.
Where would the spectral lines be found for the two lowest energy excitations from the ground state? (answer in cm-1).
Water is boiled at 1 atm pressure in a 25-cm-internal- diameter stainless steel pan on an electric range. If it is observed that the water level in the pan drops by 10cm in 45 min, determine the rate of heat transfer to the pan.
If the power plant has an overall thermal efficiency of 32%, determine (a) the amount of coal consumed during one day in kg and (b) the mass flow rate of air through the furnace in kg/s.
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