HVAC Duct Problem (thanks in advance):


HVAC Duct Problem (thanks in advance): 2. Your loads stipulate 5,000-cfm in a 20"x20" rectangular duct....
3) A rectangular HVAC duct of cross-section 20 cm X 20 cm and 12 m long is made of 3.5 mm thick sheet metal that is used to deliver hot air at 60°C with an average velocity of 4 m/s. The thermal resistance of the duct is negligible, and the outer surface of the duct, whose emissivity is 0.305, is exposed to the cold air at 10 C in the room, with a convection heat transfer coefficient of 10 W/m²....
What is the volumetric flow rate for a 15” duct with a velocity pressure of 22” H2O? 1940 cfm 5249 fpm 4305 cfm 5428 cfm What is the capture velocity at a point that is located 18 inches away from, and directly in front of, the opening of a rectangular flanged hood with dimensions of 2 inches wide by 12 inches long when the air flow servicing the hood is 585 cfm. 34 fpm 145 fpm 150 fpm 160 fpm...
Please show your work, thanks in advance!
Round answers to 3 signifcant figures and include units. Use the following circuit to answer all questions: 35Ω 50Ω 40Ω 801! 40 Ω 30Ω 25 Ω INSTRUCTIONS: Find the equivalent resistance seen at terminals a and b; round your answer to the nearest ohm Problem #1 (010)
I need some help with this process costing Excel problem.
Thanks.
Using Weighted Average.
3 Answer the questions listed below. Data is given regarding the process costing system of Ghent Widgets 4 for the month of January, Overhead pertains to machining costs. All costs refer to WIP. 6 Data Units Pct. Complete Machining 75% 8 Beginning Inventory January 9 Units Started January 10 Ending Inventory January Pct. Complete Pct. Complete Materials Labor 15,000 80% 90% 61,000 22,000 55% 25% 65%...
plz answer all four questions, thanks!
Questions 20-21 A wheel of mass m, which has a rotational inertia I and a radius r, rotates with an angular speed w about an axis through its center. A retarding force F is applied tangentially to the rim of the wheel. 22. An airplane travels horizontally at a constant velocity v. An object is dropped from the plane, and one second later another object is dropped from the plane. If air resistance is...
I would like to get answers thanks in advance.
Review Constants Periodic Table A 1.0 L container of liquid nitrogen is kept in a closet measuring 1.2 m by 1.1 m by 1.8 m. Part A Assuming that the container is completely full, that the temperature is 21.0 °C, and that the atmospheric pressure is 1.1 bar, calculate the percent (by volume) of air that is displaced if all of the liquid nitrogen evaporated. (Liquid nitrogen has a density of...
Please answer the following question clearly and show
your work.
< Problem Assignment No. 2 Equations of Motion: Rectangular Coordinates ) 40 Learning Goal To set up and salve the equations of motion using rectangular Part A-Net force on the collar The 3.5-kg collar shown has a coefficient of kinetic friction ?'t 0.185 with the shaft. The spring is un stretched when What is the net force on the collar along the directien of the shaft? View Available Hins) 0...
Please i need these correct and ASAP . thanks
Problem 11.49 Constants Pe Suppose a 5.5x1010 kg meteorite struck the Earth at the equator with a speed 2.5x104 m/s, as shown in (Figure 1) and remained stuck. Part A By what factor would this affect the rotational frequency of the Earth (1rev/day)? Express your answer using two significant figures. Figure < 1 of 1 ΟΙ ΑΣΦ ? Δω 45° North Pole Submit Request Answer Earth Provide Feedback Constants Periodic Table...
I have the key for this problem but cannot figure out where he
gets his values. Need some help. Thanks
Use the following information to answer the following 11 questions. Consider a profit maximizing monopoly market where孫90 ans e . 12.00 aand TR-4502.13 OOOQ Consider a profit maximizing monopoly market where:-93-175A2 12,000Q and TR -85QA2 13,0000 (Relevant range of Q is from 1 to 200; Q is in hundreds, you do not have to multiply your answers by 100, but...
Good morning, I need help with the following, they all relate to
OP Amps. Thanks in advance.
2 value 10.00 points Problem 05.010 An op amp voltage divider Find the voltage gain vo/vs of the circuit given below, where R1-18 kΩ and R2-14 k 2. 20 kΩ R1 1% R2 The voltage gain vo/vs of the circuit is Hints Referene eBook & Resources Hint#1 Check my work 3. 1000 points value Problem 05.025-Voltage follower Calculate the output voltage vo in...