Physics, 19.02.2020 05:21 shadiamondw8692
A classroom is air-conditioned using window air-conditioning units. The cooling load is due to people, lights, and heat transfer through the walls and the windows. There are 40 students and 10 bulbs in the class room. Each student emits 360 kJ per hour and the bulb emits 100 W. The walls of the class room transfer 15,000 kJ per hour from the outside. The air conditioning units are of 5kW cooling power. How many air-conditioning units are required to maintain the temperature in the room?
Answers: 3
Physics, 21.06.2019 19:40
Apackage of supplies is dropped from a plane, and one second later a second package is dropped. neglecting air resistance, the relative velocity of the 1st package viewed from the second will 56) a) increase. b) be constant. c) be zero. d) depend upon their weight. e) decrease
Answers: 1
Physics, 22.06.2019 08:30
Pl asaaap ! match the term to the correct description. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. movement that is like a t transfers energy from one location to another 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave
Answers: 1
Physics, 22.06.2019 13:30
Select the three ways that the parallel-plate capacitor differs from a car battery.
Answers: 1
A classroom is air-conditioned using window air-conditioning units. The cooling load is due to peopl...
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