Physics, 04.02.2020 19:52 lovemykay2355
Sandy rubs a rubber rod with a piece of animal fur. the total charge of the system before rubbing is zero. the system is made up of the rubber rod and the fur. initially, the charge on the rod is zero and it is electrically neutral. the same is true for the fur. when sandy rubs the rubber rod with the fur, the rubber rod acquires negative charges. how does the system change, overall, based on the law of conservation of charge?
Answers: 1
Physics, 21.06.2019 19:00
Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.
Answers: 1
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 02:50
Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
Answers: 3
Physics, 22.06.2019 04:30
Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?
Answers: 2
Sandy rubs a rubber rod with a piece of animal fur. the total charge of the system before rubbing is...
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