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1. Consider a fan located in a 3 ft * 3 ft square duct. Velocities at various points at the outlet are measured, and the average flow velocity is determined to be 22 ft/s. Taking the air density to 0.075 lbm/ft^3 estimate the minimum electric power consumption of the fan motor.
2. Large wind turbines with blade span diameters of over 100m are available for electric power generation. Consider awind turbine with a blade span diameters of 100 m installedat a site subjected to steady winds at 8 m/s. Taking the over-all efficiency of the wind turbine to be 32 percent and theair density to be 1.25 kg/m3generated by this wind turbine. Also, assuming steady windsof 8 m/s during a 24-hour period, determine the amount ofelectric energy and the revenue generated per day for a unitprice of $0.09/kWh for electricity.
3. An adiabatic closed system on earth is accelerated vertically from rest to 25m/s and the system is raised by a height of 110m. The system has a mass of 1.2 kg. If 1.8kJ of work is put into the system, determine the change in internal energy in kJ/kg.
4. A power plant extracts potential energy from a river to provide electrical power. The average amount of water flowing through the plant is 101,000lbm/s. The water intake for the power plant is 676 ft above the exit valves. If the power plant produces 100,000 hp, what is the efficiency of the power plant?
after the loam was ordered it was delivered and dumped in six conical piles each approximately 10ft in diameter and 8ft high compute the volume of the piles in cubic yards and determine if you received the amount you ordered ?
Alexamara Marina Group Database: Problem 4 (p. 160): List the first and last names of all owners who have a boat in a 40-foot slip. Use the IN operator in your formulation.
Investigate the presence of limit cycles both analytically and numberically and investigate the presence of homoclinic/heteroclinic orbits and global bifurcations numerically.
theorem if the consecutive midpoints of the sides of a parallelogram are joined in order then the quadrilateral formed
Probability that a player's pick wins the grand prize. In a certain lottery, k balls are chosen at random and without replacement from a bin containing N balls numbered 1 through N
trapezoid has an area of 80.75 sq. in., and its two bases are 7 and 12 inches long. find the height of the trapezoid.
The length of a rectangular computer part is twice th width The area is 242 yd. Find the length and width.
How rapidly is the diameter of the balloon increasing when the diameter is 1.1 feet?
a study of the effect of college education on job satisfaction was conducted.nbsp a contingency table is presented
The wheels of a car have a 24-in. diameter. When the car is being driven so that the wheels make 10 revolutions per second, how far will the car travel in one minute?
total cost of producing x toasters per day is given by C = (1/10xsquared+20x+25)and the selling price for each toaster is (44-1/5x). how many toasters should be produced each day in order to maximize the total profit.
A car traveling at 40 ft/sec decelerates at a constant 8 feet per second squared. How many feet does the car travel before coming to a complete stop? I end up getting 200 but it comes up as incorrect.
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