Trong những cách sau đây cách nào có thế làm nhiễm điện một vật
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Physics, 09.08.2021 14:00 britishgirl1
Trong những cách sau đây cách nào có thế làm nhiễm điện một vật
cọ chiếc vỏ bút lên tóc
đặt một nhanh ngựa gàn một vật đã nhiễm điện
Answers: 3
Physics, 22.06.2019 03:50
Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)
Answers: 3
Physics, 22.06.2019 05:10
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Physics, 22.06.2019 09:30
How would a small bar magnet be oriented when placed at position x?
Answers: 2
Physics, 22.06.2019 16:00
Which composition of water moves to begin a deepwater current?
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