A 220-V electric hot-water heaterwarms 0.72 Liters/minute of water(c = 4.18 kJ/kg,K, density =1000P.kg/m ) from 12 °C to 51 °C. Whatis the current (in Amperes) thatmust be supplied to this heater?Select one:O A. 6.94 XB. 11.20C. 8.89D. 14.05E. 17.25

Answered: Image /qna-images/answer/a4b3c962-7fdf-4485-8d62-8f303993a282.jpg

A 220-V electric hot-water heater warms 0.72 Liters/minute of water (c = 4.18 kJ/kg,K, density =1000 kg/m ) from 12 C to 51 °C. What is the current (in Amperes) that must be supplied to this heater? Select one: O A. 6.94 X В. 11.20 C. 8.89 D. 14.05 E. 17.25

A 220-V electric hot-water heater warms 0.72 Liters/minute of water (c = 4.18 kJ/kg,K, density =1000 kg/m ) from 12 C to 51 °C. What is the current (in Amperes) that must be supplied to this heater? Select one: O A. 6.94 X В. 11.20 C. 8.89 D. 14.05 E. 17.25

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.12P

See similar textbooks

Related questions

Q: Water at T, = 24°C is heated to T, = 74°C by passing it through an alternating 2. %3D array of…

Q: es 10 kg per second of steam with an enthalpy of 2570 KJ/kg. Steam condenses into liquid and leaves…

A: A steam condenser receives 10 kg per second of steam with an enthalpy of 2570 KJ/kg. Steam condenses…

Q: The fluid condition at the inlet and exit of a horizontal convergent nozzle is analysed. The nozzle…

A: Given, Nozzle inlet: Nozzle outlet:

Q: Q: Liquid water at 20°C flows out of a nozzle straight up 20.387 m. and aera exit 0.25m2, take…

Q: The mean diameter of blades of a steam turbine is 0.8 m and the speed of wheel is 3000 RPM. The…

Q: The equation: Q + L, = PEDV, + m2 (h + Ec.g.0), - th (h+ Ecg.0), 262 26275 26275 (a) Represents the…

A: According to the company's guidelines , When multiple questions are asked only first question has to…

Q: AB (21.5-18) f b. Pe с. В 21.1-1 21.1-2. Conversion of Mass-Transfer Coefficients. Prove or show the…

A: From Table 7.2-1, “Flux Equations and Mass Transfer Coefficients”;

Q: On a hot summer day, the air in a well-sealed room is circulated by a 55 W fan (Note that the motor…

A: Write the net shaft power. Pshaft=55 W Write the density of the air. ρ=1.15 kg/m3 Write the…

Q: g- In a Pelton turbine bucket angle is 1650 and ratio of peripheral velocity to jet velocity is…

A: Write the given data: Write the expression for the vane angle at the outlet of the turbine. Write…

Q: When you inhale, air flows through the turbinate bones of your nasal passages as shown. Assume that…

A: Width of plate, =20 mm,Spacing, a=1 mm,Pressure drop, ∆P=50 pa,Temperature of air, T=20 °C,Density…

Q: Blowing air from 3 separate vents to a car gallery where the indoor air temperature is 22 °C and the…

Q: What is the power of a steam jet 15mm in diameter moving at 750 m/s? Steam condition, 1.4 kg/cm2,…

Q: | As a mechanical engineering technician, you are asked by your building manager to investigate the…

Q: he hydroelectric facility that has been proposed will consist of a turbine with an efficiency of…

A: Given:Efficicnecy of turbine=η=89.2%=0.892vertical depth of 14.8 m below the riverbedHydraulic…

Q: A depressurization blower test was conducted in a 3-floor rectangular building with a height of 10 m…

A: ACH50 is the shortened form for air changes each hour at 50 pascals (Pa) pressure differential and…

Q: Determine the static fan efficiency if total fan mechanical efficiency is 70% and air is measured at…

A: Given DataQ=1.42m3/sηm=70%d2=275mmhw=2.54cmd1=300m

Q: A gas undergoes a thermodynamics expansion process as shown in Figure 1. Process ab represents the…

Q: An electronic device will be cooled by a fan with a volumetric flow rate of 0.34 m³/min. If the air…

Q: THERMODYNAMICS. Question I. 0.04 kg/s of an ideal gas (molecular weight 30, ratio of specific heats…

Q: A sudden enlargement in a circular duct measures 0.20 m diameter upstream and 0.40 m downstream. The…

A: Answer: The flow rate through the duct is 0.38 m3/sec.

Q: 24. Water enters a uniformly heated vertical tube of diameter 2.5 cm and length 4.5 m. Total heat…

A: Given data: d=2.5 cm,L=4.5 m, q=650 kWPi=100 bar, Ti=285oC, m˙=1.5 kg/s To find: Pre heating…

Q: 1- How much is used/kg of coal burnt in a boiler having chimney of 35 m height to create a draught…

A: Given, H=35 m h=20 mm of water Tg=370 0C=370+273 K=643 K Ta=34 0C=34+273 K=307 K

Q: Before entering the engine of a BMW320D, air drawn in at 20°C and atmospheric pressure enters the…

A: Given:- At Inlet:-Pressure =1 atm=101.325 kPa,Temperature=20° C=293.15 K,Volume flow rate=120…

Q: In the example of energy moving around inside an isolated system due to an internal temperature…

Q: Derive the Steady Flow Energy Equation from the first law of thermodynamics. In addition, what is…

A: Assumptions for steady-state energy equation 1.The mass flow rate through the system is constant.…

Q: A wind generation system consisting of a conventional rotor turbine, is used to generate electricity…

Q: 2. For a piping system as shown in the figure, determine the distribution of the water flow Qi and…

Q: Water (7.7 L/min) is flowing in a tube "D = 3 cm, L= 5 m" and is to be heated from 15°C to 62.1°C by…

A: Given:Volume flow rate,Q=7.7Lmin=7.7×10-360m3sDiameter of tube,D=3cm=0.03mLength,L=5mInitial…

Q: 5. If 25 x 106 kg/h flows over a waterfall that is 200 m high, what ideal power in kilowatts can be…

Q: working uid enters a with velocity 3o mls and leaves with velocity 140 mis- The A Stendy-flow &yste…

A: Giveninlet conditions V1=30m/sP1=13.8barν1=0.122m3/kgU1=422kJ/kgexit properties…

Q: A cylindrical tank contains three liquids of specific gravities: 0.80, 1.00, and 1.50. Each liquid…

A: As per given question Specifi gravity of there liquid 0.80 1.00 1.50 Liquid thicknesses 0.60 Tank…

Q: Q=2000J Tout=? V (m/s) D=0.1m air Air at (2.95x10^2) K is entering in a circular pipe at 101325 Pa…

Q: A geothermal power plant was installed at the rear side cliff of Mayon Terrain that generates…

Q: convergent nozzle is analysed. The nozzle is operating steadily and heat loss is assumed negligible.…

Q: Which of the following is incorrect about the overall energy balance and mechanical energy balance…

A: All energies entering the system equal all energies exiting the system plus the change in storage…

Q: Three immiscible fluids are contained in a tank: 1.0 m of water, 1.20 m of oil (s= 0.80), and air…

Q: A disel station has an overalleffeiecny is 0.25. The fuel calorific value is 7000 k.calorific /kg.…

A: A) Given Data- efficiency = 0.25 Calorific-value=7000 kcalorific/kg B) Given Data- efficiency = 0.7…

Q: Q=2000J Tout=? V(m/s) D=0.1m air Air at (2.95x10^2) K is entering in a circular pipe at 101325 Pa as…

A: Given Data: Heat added, Q=2000 J Specific heat, C=1000 J/kg-K

Q: An oil has 0.62 inch steel tube, through which flows an oil. The properties of oil are as follows; μ…

A: The Answer is below

Q: Q=2000J Tout=? V(m/s) D=0.1m air Air at (3.200x10^2) K is entering in a circular pipe at 101325 Pa…

Q: A dam is proposed on a remote stream that measures approximately 25-cm deep by 350-cm wide with an…

A: Handwriting.jpg

Q: When designing forced hot water heating system for a residential building, which of the following…

A: Given Diameter of the pipe = 40 mm = 0.04 m Density of water = 983 kg/m3 To find Mass flow rate

Q: Three immiscible fluiids are contained in a tank: 1.0 m of water, 1.20 m of oil (s= 0.80) and air…

Q: Q=2000J Tout=? V(m/s) D=0.1m air Air at (3.050x10^2) K is entering in a circular pipe at 101325 Pa…

A: Given data Temperature at entrance = T1 = 305.0 KPressure at entrance = P1 = 101325 PaVelocity at…

Q: Three immiscible fluiids are contained in a tank: 1.0 m of water, 1.20 m of oil (s= 0.80) and air…

Q: b) Steam generators are a type of heat exchanges that are used in power plants to generate steam at…

A: Water inlet condition= saturated liquid at 30oCTube diameter, d=60 mm =0.060 mVolume flow rate at…

Q: on the island, hydropower is expected to be extracted from a river of the river system via a pipe,…

A: Given : Discharge Q= 35 m3/s ( February to may ) Discharge Q= 115 m3/s ( June to January )…

Q: The brake horsepower and water horsepower of a pump are determined to be 15 kW and 12 kW,…

Q: Q=2000J Tout=? V(m/s) D=0.1m air Air at (3.15x10^2) K is entering in a circular pipe at 101325 Pa as…

A: Heat input, Q= 2000 J Inlet pressure, P= 101325 Pa Inlet temperature, Tin= 315 K Velocity, v= 1 m/s…

Question

A 220-V electric hot-water heater
warms 0.72 Liters/minute of water
(c = 4.18 kJ/kg,K, density =1000
P.
kg/m ) from 12 °C to 51 °C. What
is the current (in Amperes) that
must be supplied to this heater?
Select one:
O A. 6.94 X
B. 11.20
C. 8.89
D. 14.05
E. 17.25

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Steam flows through a turbine at the rate of 100 lb/min with ∆KE = 0 and Q = 0. At entry, its pressure is 175 psia, its volume is 3.16 ft3/lb, and its internal energy is 1166.7 Btu/lb. At exit, its pressure is 0.813 psia, its volume is 328 ft3/lb, and its internal energy is 854.6 Btu/lb. What horsepower is developed? (b) The same as (a) except that the heat loss from the turbine is 10 Btu/lb of steam.
.The refrigerant volume flow rate at the entrance of compressor wereobtained from a test on a twin cylinder single acting 15 cm x 20 cm, 320 rpmcompressor ammonia refrigerating plant 33 L/s. Determine the volumetricefficiency of the compressor.
Water at 60 deg. F is pumped from a reservoir to the top of a mountain through a 6-in SCH 120 pipe at an average velocity of 12 ft/s. The pipe discharges into the atmosphere at a level 3000 ft above the level in the reservoir. The pipeline itself is 4500 ft. long. If the overall efficiency of the pump and the motor driving it is 70% and the cost of electric energy to the motor is 4 cents per kilowatt-hour,1. what is the hourly energy cost for pumping this water? $3.21$ 18.32$12.83$81.23$ 32.18$23.81none of the given
What refrigeration capacity in TOR is required to cool 2000 cfm of air from 85°F to 70°F? If the specific heat ratio (k) and specific gas constant (R) of air are 1.4 and 0.28708 kJ/kg-K, respectively.
A steam condenser receives 10 kg per second of steam with an enthalpy of 2570 KJ/kg. Steam condenses into liquid and leaves with an enthalpy of 160 KJ/kg, if cooling water passes through the condenser with temperature increases from 13oC to 24oC. Calculate the cooling water flow rate in kg/sec. Show conversion of units pls
1. Moist air enters a refrigeration coil at 89 F dry-bulb temperature and 65 F thermodynamic wet bulb temperature at a rate of 14oo cu ft per min. The surface temperature of the coil is 55 F . If 3.5 tons of refrigeration are available, find the dry bulb and wet bulb temperatures of the air leaving the coil. Assume sea level pressure.
A computer, cooled by a fan, containseight printed circuit boards, dissipating 10 W ofpower each one. The height of the cards is 12 cm and theirlength is 18cm. The cooling air is supplied by a25W fan mounted in the inlet. If the increase ofair temperature should not be higher than 10 ° C when passing throughthe computer case, determine (a) the air flow ratethat the fan must deliver and b) the fraction of increase ofair temperature, due to heat generated by the fanand its engine.
State the first law of thermodynamics and prove that for a non-flow process, it leads to the energy equation Q= Delta U+W.
During processing in a steel mill, a 375kg steel casting at 800 degrees is quenched by plunging it into a 500-gal oil bath, which is initially 75 degrees . After the casting cools and the oil bath warms , what is the final tempertature of the two? The weight per unit volume of the oil is 7.5 lb/gal.
39 - The speed of the air entering a nozzle at the nozzle exit was 196 m/s and its density was measured as 0.681 kg/m³. Since the mass flow rate in the nozzle is 1,421 kg/s continuously, which of the following is the outlet cross-sectional area of the nozzle? a) 48,325 cm² B) 49,373 cm² NS) 106,461 cm² D) 110,603 cm² TO) 84,678 cm²
4.) A pump in a municipality's water-supply system receives water from the filtration beds and pumps it up to the top of a water tower. The tower's height is 35 m, and the inlet piping to the pump is 2 m below the pump's intake. The water temperature is 20°C, measured at both the inlet and discharge from the pump. The mass flow rate through the pump is 100 kg/s, the diameter of the inlet piping is 25 cm, and the diameter of the discharge piping is 15 cm. Assuming that there is no heat transfer and no change in internal energy of the water, determine the power required by the pump
a power plant steam, steam is continuously extractedfromthe turbine and in a heat exchanger there is a condensation of the extracted steam. The energy released during condensation of steam is used to operate a heat engine. A heat engine receives thermal energy at a rate of 1200 kJ/hr from condensing steam and rejects waste heat to a lake at 20°C at a rate of 800 kJ/hr. Determine the lowest possible condensing steam temperature.