An electrical heater 100 mm long and 5 mm in diameter is inserted into a hole drilled normal to the surface of a large block of material having a thermal conductivity of 5 W/m · K. Estimate the temperature reached by the heater when dissipating 50 W with the surface of the block at a temperature of 25°C.
Answers: 2
Physics, 21.06.2019 17:30
What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )
Answers: 1
Physics, 21.06.2019 23:00
Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)
Answers: 3
Physics, 21.06.2019 23:40
Avalue that describes how heavy an object is and is related to the force of gravity is
Answers: 1
Physics, 22.06.2019 13:00
The substances that are necessary for producing of certain hormones and that store and transport vitamins
Answers: 1
An electrical heater 100 mm long and 5 mm in diameter is inserted into a hole drilled normal to the...
Biology, 05.10.2019 01:00
English, 05.10.2019 01:00
English, 05.10.2019 01:00
Biology, 05.10.2019 01:00
Mathematics, 05.10.2019 01:00
Biology, 05.10.2019 01:00
Geography, 05.10.2019 01:00
Health, 05.10.2019 01:00
Mathematics, 05.10.2019 01:00
Mathematics, 05.10.2019 01:00
History, 05.10.2019 01:00