Physics, 22.07.2021 03:10 heyheyheyhey3
Trong từ trường đều có cường độ H = 1000A/m, xét một diện tích phẳng S = 50cm2, sao cho các đường sức từ tạo với mặt phẳng của diện tích S một góc 300. Tính từ thông gởi qua diện tích đó
Answers: 2
Physics, 21.06.2019 18:50
The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth's center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.
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Physics, 22.06.2019 04:40
Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely
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Physics, 22.06.2019 07:00
The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.
Answers: 1
Trong từ trường đều có cường độ H = 1000A/m, xét một diện tích phẳng S = 50cm2, sao cho các đường sứ...
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