Physics, 06.07.2019 10:00 davisnaziyahovz5sk
Asquare metal plate 1.5m side and 1.2mm thick weighting 50n is to be lifted through a vertical gap at 25mm of infinite extent . the oil in air gap has a specific gravity of 95 percent and viscosity of 2.5n. s/m^2. if the metal plate is to be lifted at a constant speed of 0.1m/s find the force and power required.
Answers: 1
Physics, 21.06.2019 18:40
The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80
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Physics, 22.06.2019 10:00
During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs
Answers: 1
Physics, 22.06.2019 10:00
Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
Answers: 1
Physics, 22.06.2019 14:40
Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?
Answers: 1
Asquare metal plate 1.5m side and 1.2mm thick weighting 50n is to be lifted through a vertical gap a...
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