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- Ahmad Fawzi Musleh, when you submit this form, the owner will be able to see your name and email add * Required 1 Points A [at (2, 3) m] and B [at (5, 7) m] are in a region where the electric field is uniform and given by E = (4i + 3j) N/C. What is the potential difference? * (1 Point) %3D O 33 V O27 V 30 V 24 V 11 V 2A double-pane glass window consists of two pieces of glass, each having athickness of 8 mm, with a thermal conductivity of k = 1.4 W⁄m ⋅ K . The twoglass panes are separated by an air gap of 10 mm, as shown in Figure 11.10 .Assuming the thermal conductivity of air to be k = 0.025 W⁄m ⋅ K , determinethe total R-value for this window. The total thermal resistance of the window is obtained by adding the resistance offered by each pane of glass and the air gap in the following manner:function of elevation z above sea level is given by g = a - bz, where a 9.807 m/s² and b 3.32 x 106 $². Determine the height above sea level where the weight of an object will decrease by 1 percent. A 1-34 A 4-kW resistance heater in a water heater runs for 2 hours to raise the water temperature to the desired level. Determine the amount of electric energy used in both kWh and kJ.
- Two thermometer. one reading and the other are both immersed in a fluid. If the farenheit reading is half of the celcius reading, a.) What is the farenheit reading? b.)what is the equivalent temperature of the fluid in degrees rankine?Calculate the change in 5 m long copper wire when its temperature changesby 60º C.Water at 50°F is pumped from a lake at 750 gpm through a length of 3-inch schedule 40 commercial steel pipe as shown below. The inlet to the pipe is eight feet below the surface of the lake. A 25-HP gasoline engine drives the pump and the pump has an efficiency of 80% What is the Reynolds number in the pipe? Is the flow laminar or turbulent? What is the head added to the water by the pump? What is the head loss due to pipe friction?
- The water in a hot water heating system is heated to 76°C. What is thistemperature reading on a Fahrenheit thermometer?Calculate the value of f in meters in the manometer provided below. a 3m b 4.5m C 5.5m d 2.5m e 4.5m Air 5.5kPa Kerosene 8.5kN/m^3 1191 b O11C ---- C- Air Oil Kerosene Water MercuryProblem No. 2 The correction in the length of the 100 m steel tape at a temperature of 40°C is 0.0015 m too long. What is the temperature for a correction of 0.004 m too short for the same tape? (answer in 4 decimal places)
- A 100 W incandescent lamp (2725 lm) illuminates a 120 ft2 (11.15 m2 ) surface. Determine the average illuminance of the surface in foot candle and lux. (With explanation)today at 8:12 pm mee A metallic cube 30 cm side and weighing 450 N is lowered into a tank containing a two fluid layer of water and mercury. Top edge of the cube is at water surface. Determine the position of block at water-mercury interface when it has reached equilibrium.4. Assume that half of the light emitted by a 100 W incandescent lamp (1750 lumens) illuminates a 100 ft2 surface. a. Determine the average illuminance of the surface in foot-candles. b. Determine the average illuminance of the surface in lux. c. What would the average illuminance be if only half of the light illuminated the surface?