Physics, 12.08.2020 05:01 diegorivas7992
1. Aplica-se a um capacitor uma tensão elétrica U= 12 V. A capacidade do capacitor é C= 2,0 uf (u= micro; 1u=10-6). Determine a carga elétrica armazenada pelo capacitor.
2. Um capacitor isolado, em um equilíbrio eletrostático, possui uma quantidade de carga Q= 4uc e uma tensão elétrica U= 2.103V. Determine a capacidade elétrica do condutor.
3. Um capacitor em equilíbrio eletrostático, isolado, no vácuo, possui carga elétrica Q= 8uC e pontencial elétrico U= 2kV. Quando será a carga que o capacitor deve ter para que sua d. d.p seja U'= 3,5 kV
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Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.
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Physics, 22.06.2019 16:40
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".
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Physics, 22.06.2019 18:00
Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?
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1. Aplica-se a um capacitor uma tensão elétrica U= 12 V. A capacidade do capacitor é C= 2,0 uf (u= m...
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