Physics, 21.03.2021 02:50 sarahmckee69
Four square pieces of insulation of two different materials, all with the same thickness and area A, are available to cover an opening of area 2A. This can be done in either of the two ways shown in the Figure below. Note: The pieces in each arrangement are placed directly on top of each other. kr ki k2 2. Hint: First show that (k + k2)>4k, k2 ki Which arrangement, (A) or (B), gives the lower energy flow if k # k2?
Answers: 3
Another question on Physics
Physics, 22.06.2019 12:00
In an experiment, how can i change human errors? be specific.
Answers: 1
Physics, 22.06.2019 12:40
Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)
Answers: 1
Physics, 22.06.2019 16:50
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
Answers: 2
Physics, 22.06.2019 20:30
The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?
Answers: 2
You know the right answer?
Four square pieces of insulation of two different materials, all with the same thickness and area A...
Questions
Mathematics, 11.05.2021 20:00
Biology, 11.05.2021 20:00
French, 11.05.2021 20:00
Mathematics, 11.05.2021 20:00
History, 11.05.2021 20:00
Mathematics, 11.05.2021 20:00
Computers and Technology, 11.05.2021 20:00
Social Studies, 11.05.2021 20:00
Geography, 11.05.2021 20:00
Mathematics, 11.05.2021 20:00
Mathematics, 11.05.2021 20:00
Geography, 11.05.2021 20:00
Mathematics, 11.05.2021 20:00
