Physics, 04.09.2021 14:40 risolatziyovudd
một dây dẫn dài 100m được cuốn thành 1 cuộn dây. khi đặt 1 hiệu điện thế 60V vào 2 đầu cuộn dây này thì cường độ dòng điện qua nó là 125mA. Mỗi đoạn dây dài 1m sẽ có điện trở là
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One soccer player (a) is moving at 4 km/h when she kicks the ball while another soccer player (b) is moving at 8 km/h. what statement accurately compares their kinetic energy if they have the same mass? a) both soccer players have the same kinetic energy. b) player b has twice the kinetic energy of player a. c) player b has four times the kinetic energy of player a. d) their kinetic energy can't be compared without knowing their mass.
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một dây dẫn dài 100m được cuốn thành 1 cuộn dây. khi đặt 1 hiệu điện thế 60V vào 2 đầu cuộn dây này...
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