Physics, 18.12.2019 22:31 autumperry7078
Two parallel disks of diameter d 5 0.6 m separated by l 5 0.4 m are located directly on top of each other. both disks are black and are maintained at a temperature of 450 k. the back sides of the disks are insulated, and the environment that the disks are in can be considered to be a blackbody at 300 k. determine the net rate of radiation heat transfer from the disks to the environment.
Answers: 2
Physics, 21.06.2019 15:30
Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha
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Physics, 22.06.2019 14:30
Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity
Answers: 3
Physics, 22.06.2019 20:20
Consider a file currently consisting of 200 blocks. assume that the file control block (and the index block in the case of indexed allocation) is already in memory. calculate how many disk i/o operations are required for contiguous, linked, and indexed (single-level) allocation strategies, for each of the conditions listed below. in the contiguous-allocation case, assume that there is not room to grow at the beginning but there is room to grow at the end. also assume that the block information to be added is stored in memory.
Answers: 3
Two parallel disks of diameter d 5 0.6 m separated by l 5 0.4 m are located directly on top of each...
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