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1.The 10-lb lamp fixture is suspended from two springs, each having an unstretcfhed length of 4 ft and stiffness of k=5lb/ft. Determine the angle theta for equilibrium.
2.What are reasons for difference in the coefficient of kinetic friction on horizontal surface with a hanging mass at constant velocity compared to object one on incline
3.A 1-m^3 volume tank contains a mixture of 18.32 moles of oxygen, 16.40 moles of Nitrogen, and 6.15 moles of carbondioxide. What is the partial pressure of each gass componet at 25 degrees?
A 2005 Chrysler Town and Country MInivan has a frontal area of 2.9m2 and a drag coefficient of 0.35. A 2000 Honda Insight has a frontal area of 1.9m2 and a drag coefficient of 0.25. Determine the amount of money saved per year associated with aerodyn..
A CFL bulb that puts out as much light as a 60-W incandescent bulb might costs $10, compared to about $1 for the incandescent bulb. But CFL bulbs are expected to last (on average) 15,00 hours, compared to about 1000 hours for an incandescent bulb.
An in-ground swimming pool may have a leak. The 30-ft by 10-ft by 5-ft (depth) pool is filled on June 1. On June 13, a hose, flowing at a rate of 10 gallons per minute, is used to add water to the pool. The hose is turned off after 1 hour.
Laboratory clean rooms are often kept at a slightly higher pressure than ambient pressure in order to flush out particulates and keep dust from getting in. If the pressure in such a room is equivalent to 1 mm water greater than the surrounding rooms
What is the maximum distance away that the navigation lights can still be seen by an observer standing at the shoreline The observer's eye height is 5'6" and the uppermost navigation light is 168 above the water.
The level of water in a city water tower is 125ft. above the ground. The tank is kept with an air space which can be pressurized with compressed air. It is important to maintain a pressure at the bottom of the tower at 75 psig
Ends A and D of the two solid steel shafts AB and CD are fixed, while ends B and C are connected to gears. Knowing that a 4-kN(m) torque T is applied to gear B, determine the maximum shearing stress (a) in shaft AB, (b) in shaft CD.
The 2 Mg car is being towed by a winch. If the winch exerts a force of T=105s on the cable, where 14m is the displacement of the car in meters, determine the speed of the car when s , starting from rest. Neglect rolling resistance of the car.
Air at 14.7 psia, 55*F, 60 percent relative humidity is first heated to 72*F in a heating section and then humidified by introducing water vapor. The air leaves the humidifying section at 75*F and 65 percent relative humidity.
A 20 kg block slides along the rough surface for which the coefficient of kinetic friction is 0.2. The block strikes a nonlinear spring with a speed of v=4.5 m/s. The spring is termed
The discussion must address phase angle relationships of current and voltage. The answer must include the effect of source frequency on the voltage drops across the resistor and the inductor at very low and very high frequency values.
As a consulting engineer you are hired to evaluate the operation and the unit processes within the plant and make recommendations for improvements. You are asked to consider the following units.
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