Moving to another question wil save this response. Question 7 Consider a person standing in a...
3. A water heater is covered with insulation boards over a total surface area of 3 m. The board is 5.3 centimeter thick. The inside board surface is at 69'C, and the board material has a conductivity of 0.08 W/m-K. If the heat loss is 200 W, determine the outside surface temperature. Given A= 3m? T= 69°C Tonto? K= 0.08 W/mk Q=2oow 4. Determine the total rate of heat transfer from a person standing in a breezy room at 20°C...
A stainless steel block (H 0.1 m and k 16 W/(m K)) that is perfectly insulated on 5 of its 6 sides is floating in space (no convection heat transfer). It is exposed to irradiation, G, of 2500 W/m2. The block is generating heat uniformly where 4x 104 W/m2. The Stefan- Boltzmann constant, o, is 5.67 x 108 W/(m2-K4)·The emissivity of the exposed surface is 0.8. (25 Points) A) What is the exposed surface's temperature? B) What is the maximum...
Moving to another question wil save this response Question 16 of 50 Question 16 2 points Save Answer The use of information technologies in business raises ethical issues in such areas as privacy, individuality, O True O False ?Moving to another que n wr save this response Question 16 of 50 O Type here to search DII 2 4. 5 6
Completion Status Moving to another question will save this response Question 4 A spherical conducting shell has an inner radius 2 cm and outer radius 5 cm. The conductor creries a charge 32 nC. If we insert other charge 12 oC the center of the what is going to be the net charge (in nC) on the outer surface of the shell? Moving to another question will save this response lenovo
Radiation of Energy The rate of heat transfer by emitted radiation is determined by the Stefan-Boltzmann law of radiation: = aeAT4 where o 5.67x10-8 J/s - m2 K is the Stefan-Boltzmann constant, A is the surface area of the object, and T is its absolute temperature in kelvin. The symbol e stands for the emissivity of the object, which is a measure of how well it radiates An ideal jet-black (or black body) radiator has e 1,whereas a perfect reflector has...
> Moving to another question will save this response Questions Find the surface area of the portion of the plane z =3x+6y +5 above the rectangle R={(x,y)|15x52, 1sys4} Round your answer to 1 decimal place, and do not type any unit. A Moving to another question will save this response.
just the answer please. no need for solution L Moving to another question will save this response. uestion 7 How much force is needed to make a rocket move in constant velocity in a frictionless outer space? the force needed is equal to its thrust Oe=mc2 O incomplete data given O Its equal to the net force acting in the object o nothing, just nothing A Moving to another question will save this response. L Moving to another question will...
? Moving to another question will save, this response Question 7 Identily the CFC with the longest atmosphonc lifetime. CFC-114 CFC-12 OCFC-115 O CFC-11 CFC-113 ? Moving to another question will save this response
The heat question and would like to have work solution. The answers are (c) 136.6 (d) < 2%. thank you. An long cylindrical vaccuum chamber shown in Figure 1, is used to anneal single titanium rods by maintaining their temperature at 800 °C for an extended period of time. Heat is introduced into the rods internally by induction. The insulation surrounding the chamber has a thicknesss of 50 mm and thermal conductivity of 0.1 W/m.K. The convective heat transfer coefficient...
Moving to another question will save this response. Question 7 The total capacitive reactance in the circuit shown below is G 12 nF 15.02 0.068 NF 680 MO 470.7 MO 2.64 MO 468 MO L Moving to another question will save this response.