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# The stress in section AB is Mpa. A) 22.5 B) 26.3 C) 28.8 D) 31.8 E) 44.2 F) 56.6 4. The stress in section BC is Mpa. A) 22.5 B) 26.3 C) 28.8 D) 31.8 E) 44.2 F) 56.6 5. While under the load, the strain in section AB is x 10 -6 mm/mm. A) 455 B) 808 C) 64,320 D) 125,300 E) 450,000 F) 722,300 6. While under the load, the strain in section BC is x 10 -6 mm/mm. A) 455 B) 808 C) 64,320 D) 125,300 E) 45,000 F) 722,300 7. The total elongation of the bar while under the applied load is   ### Another question on Physics Physics, 21.06.2019 19:30
The lights used by mark watley (played by matt damon) during the film the martian seem to be metal halide lamps. metal halide lamps are filled with vaporized mercury and metal-halogen compounds. when an electric current is passed through the lamp, the tube begins to glow a bright white/blue color. if you were to pass this light through a prism to separate the individual light frequencies, you would see a rainbow just as you would if using natural sunlight because of the complexity of the metal halide gas and the vast amount of possible electron transitions. (the study of light in this way is known as spectroscopy and allows astronomers to know exactly what atoms compose distant stars, simply by looking at the light they emit. the spectral lines an atom produces uniquely identifies that atom just like a fingerprint uniquely identifies a person. the momentum equation and energy equation that we have used above can be combined to give the following equation: c = e p where again p is the phonon momentum, e is the photon energy and c is the speed of light. when you divide the photon energy found in #6 by the photon momentum found in #4, do you get the speed of light? (if not, check your work for questions #4 through #6). yes no Physics, 21.06.2019 23:30
Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing? Physics, 22.06.2019 01:10
Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then? Physics, 22.06.2019 03:20
Air is first compressed adiabatically from 100 kpa and 300 k to 1500 kpa and a specific volume of 0.1m^3/kg. the air is then cooled at constant volume back to 300 k. a) draw and label the processes on a p-v diagram. b) determine the work per unit mass from state 1 to state 2. c) determine the heat per unit mass from state 2 to state 3. d) list the mandatory assumptions to solve this problem.
The stress in section AB is Mpa. A) 22.5 B) 26.3 C) 28.8 D) 31.8 E) 44.2 F) 56.6 4. The stress in s...
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