Physics, 21.06.2021 17:40 kelseychristian24
Một electron di chuyển hướng lên, trong mặt phẳng của trang giấy này. Vectơ cảm ứng từ B ⃗ của từ trường cũng nằm trong mặt phẳng của trang giấy và hướng về phía bên phải. Phương, chiều của lực từ lên electron?
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According to newton’s first law of motion, which force is expected to cause a body to accelerate?
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Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?
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Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current
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Physics, 22.06.2019 16:40, Crxymia
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
Một electron di chuyển hướng lên, trong mặt phẳng của trang giấy này. Vectơ cảm ứng từ B ⃗ của từ tr...
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