Physics, 26.09.2019 21:20 shartman22
Aroom contains 75 kg of air at 100 kpa and 15°c. the room has a 250-w refrigerator (the refrigerator consumes 250 w of electricity when running), a 120-w tv, a 1.8-kw electric resistance heater, and a 50-w fan. during a cold winter day, it is observed that the refrigerator, the tv, the fan, and the electric resistance heater are running continuously but the air temperature in the room remains constant. the rate of heat loss from the room that day is kj/h.
Answers: 3
Physics, 21.06.2019 16:30, jaylasmith884
Ared apple is illuminated by a blue light the apple will appear
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Physics, 22.06.2019 03:00, alexanderavrett
Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below. your friend goes first, and you follow after he has dropped a distance of 2.0m. when your friend hits the water, is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.
Answers: 2
Physics, 22.06.2019 18:30, ayahabdulhaqq2
An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?
Answers: 2
Aroom contains 75 kg of air at 100 kpa and 15°c. the room has a 250-w refrigerator (the refrigerator...
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