Physics, 27.09.2019 04:30 cjustiniano705
1: explain how you can use boyle’s law to determine the new volume of gas when its pressure is increased from 270 kpa to 540 kpa? the original volume of gas was 1 l. assume the temperature and number of particles are constant. what is the new volume?
2: what are three common clues that a chemical change has occurred?
3: you have a sealed glass jar full of air. if you put it in the freezer, what happens to the gas pressure in the jar?
4: name and describe the phase change that occurs when solid carbon dioxide (dry ice) is placed in an open container at room temperature.
Answers: 1
Physics, 22.06.2019 05:00
Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?
Answers: 3
Physics, 22.06.2019 09:40
Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?
Answers: 2
Physics, 22.06.2019 16:40
Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.
Answers: 3
Physics, 22.06.2019 17:20
Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.
Answers: 1
1: explain how you can use boyle’s law to determine the new volume of gas when its pressure is incr...
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