Physics, 26.07.2021 06:20 impura12713
Hai quả cầu nhỏ mang điện tích q1 ; 42 đặt cách nhau 3 cm trong không khí thì lực hút tĩnh điện giữa chúng có độ lớn là 2.10 − 2 N. Điện tích tổng cộng của hai quả cầu là –10-8 C . Xác định điện tích q1; q2 của mỗi quả cầu ? Biết rằng |q1 > q2
Answers: 3
Physics, 22.06.2019 04:00
Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.
Answers: 2
Physics, 22.06.2019 08:00
Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.
Answers: 2
Physics, 22.06.2019 12:20
What is the coefficient of kinetic friction μk between the block and the tabletop?
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Physics, 23.06.2019 01:50
An electron moving at 5.06 103 m/s in a 1.23 t magnetic field experiences a magnetic force of 1.40 10-16 n. what angle does the velocity of the electron make with the magnetic field? there are two answers between 0° and 180°. (enter your answers from smallest to largest.)
Answers: 2
Hai quả cầu nhỏ mang điện tích q1 ; 42 đặt cách nhau 3 cm trong không khí thì lực hút tĩnh điện giữa...
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