Engineering, 25.02.2020 02:27 joe805
" A 4-m × 5-m × 6-m room is to be heated by a baseboard resistance heater. It is desired that the resistance heater be able to raise the air temperature in the room from 5 to 25°C within 17 min. Assuming no heat losses from the room and an atmospheric pressure of 100 kPa, determine the required power of the resistance heater. Assume constant specific heats at room temperature. "
Answers: 2
Another question on Engineering
Engineering, 03.07.2019 14:10
The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite
Answers: 3
Engineering, 04.07.2019 18:10
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
Engineering, 04.07.2019 18:10
At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.
Answers: 1
Engineering, 04.07.2019 19:10
Asteel wire of 2 mm diameter is fixed between two points located 2 m apart. the tensile force in the wire is 250n, if its density of steel is given by 7830 kg/m3 the fundamental frequency of vibration hz? ?
Answers: 3
You know the right answer?
" A 4-m × 5-m × 6-m room is to be heated by a baseboard resistance heater. It is desired that the re...
Questions
English, 27.08.2020 14:01
Physics, 27.08.2020 14:01
Computers and Technology, 27.08.2020 14:01
History, 27.08.2020 14:01
Mathematics, 27.08.2020 14:01
Physics, 27.08.2020 14:01
English, 27.08.2020 14:01
Mathematics, 27.08.2020 14:01
Chemistry, 27.08.2020 14:01
Mathematics, 27.08.2020 14:01
Biology, 27.08.2020 14:01
