A 4 kW resistance heater in a water heater runs for 2 hours to raise the...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A 4 kW resistance heater in a water heater runs for 2 hours to raise the water temperature to the desired level. The amount of electric energy used is 28800 kJ OBJ O 30 kJ O 4 kW Question 3 1 pts The equation Q = kA(AT/L) solves for the total heat transfer rate Q [W] during conduction within a solid of length L. The cross section of the solid is represented by the area A. And the temperature difference between the two sides is represented by T. k is a material property of the solid. The units of k in metric unit system are O W/m.K O W/mK O kg/m.K Om/W Question 4 1 pts Lift force FL of an airfoil is calculated using FL = 0.5p2 ACL. Where p is the density of air, v is the velocity of air and A is the area of the wing. The units of lift coefficient Clare unitless ON.s/ke Om^2/s ON Question 5 1 pts Volumetric flow rate of a liquid is given by the volume of flow per unit time, while mass flow rate th of a liquid is given by the quantity of mass flowing per unit time. What must fluid property must be multiplied with volumetric flow rate to convert it to mass flow rate? In other words, m F V. the property is? O density O velocity O brea time A 4 kW resistance heater in a water heater runs for 2 hours to raise the water temperature to the desired level. The amount of electric energy used is 28800 kJ OBJ O 30 kJ O 4 kW Question 3 1 pts The equation Q = kA(AT/L) solves for the total heat transfer rate Q [W] during conduction within a solid of length L. The cross section of the solid is represented by the area A. And the temperature difference between the two sides is represented by T. k is a material property of the solid. The units of k in metric unit system are O W/m.K O W/mK O kg/m.K Om/W Question 4 1 pts Lift force FL of an airfoil is calculated using FL = 0.5p2 ACL. Where p is the density of air, v is the velocity of air and A is the area of the wing. The units of lift coefficient Clare unitless ON.s/ke Om^2/s ON Question 5 1 pts Volumetric flow rate of a liquid is given by the volume of flow per unit time, while mass flow rate th of a liquid is given by the quantity of mass flowing per unit time. What must fluid property must be multiplied with volumetric flow rate to convert it to mass flow rate? In other words, m F V. the property is? O density O velocity O brea time
Expert Answer:
Posted Date:
Students also viewed these mechanical engineering questions
-
A meal consists of 1 appetizer, 1 pasta and 1 sauce with the pasta. The restaurant is thinking of adding a dessert option to their menu. They want to add enough dessert options so they can have at...
-
J'Shawn wants to save $750,000 for his retirement account. He will be saving monthly for 25 years and earning an interest rate of 3.8% per year. He will start with a beginning balance of $20,000. How...
-
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.
-
Technology guru Tim O'Reilly said this about the publishing industry: " To adapt, publishers need to cannibalize their own business, experimenting with new forms, new formats, and new business...
-
In Plane View Problem: Whiz Corporation overstated the value of shares given in exchange for an airplane and, thereby, understated its loss on disposition of the shares. Income was overstated. Whiz...
-
When may an employee covered by the Americans with Disabilities Act be terminated despite his or her disability? a. When the employer requests an accommodation b. When the employee engages in an...
-
\((n \times m)^{9}\) Simplify the expression.
-
General capital assets are accounted for differently in fund and government-wide nancial statements. A city engaged in the following transactions during a year: 1. It acquired computer equipment at a...
-
On May 1, Soriano Co. reported the following account balancesalong with their estimated fair values:Carrying AmountFair ValueReceivables$152,400$152,400Inventory85,60085 2 answers
-
You are working on a free-form Packet Tracer challenge activity as seen in Figure 1, you have been given the London Railways network.' The purpose of this EMA question is to build upon each of the...
-
Describe what globalization is from an organizational communication perspective. Explain what leadership approach you would like to work within and why. Choose two organizations (your choice) and...
-
Find the angle between the lines 2y-3x-50 and 3y - 2x + 6 = 0.
-
(a) Explain the main features of covered bonds that make them an attractive form of bank-issued instruments to market investors. (b) Are covered bonds subject to the moral hazard problem commonly...
-
Set one SMART goal for yourself for this year. SMART stands for Specific, Measurable, Attainable, Relevant, and Time-bound. Answer the following questions create SMART goal: What specifically want to...
-
3. [1 (a) If A 2 12 212 21 1 2 then prove that A2-4A-5= 0. 2 1 (b) Find value of tan3A in terms of tanA
-
On the surface of the Moon, an astronaut can jump higher because the force of gravity is less than it is on Earth. When a certain astronaut jumps, his height, in metres above the Moon's surface, can...
-
What is your input to the following? A computer security incident response team (CSIRT) has become essential to deal with the growing number and increasing sophistication of cyber threats. Unlike a...
-
Software Solution is family-owned business that has been in operation for more than 15 year. The board of directors is comprised of mainly family members, plus a few professionals such as an...
-
On July 1, 2016, The Hershey Company acquired 75 percent of the common stock of Bagota Organic Chocolates. The \($1.2\) billion purchase price was paid in cash and newly-issued debt securities. The...
-
Placer Company acquired a 75 percent interest in Summer Company for \($8,000,000\) in cash. The condensed balance sheets immediately prior to the acquisition are below: Additional information: 1. In...
-
On January 1, 2007, Harrah's Entertainment, Inc. acquired a 70 percent interest in the company that owned Emerald Safari Resort for \($592\) million in cash and stock. Harrah's is now part of...
Study smarter with the SolutionInn App