Physics, 31.08.2019 03:20 loudermilkb117
An l-r-c series circuit l = 0.123 h , r = 244 ω , and c = 7.27 μf carries an rms current of 0.452 a with a frequency of 410 hz .a) what is the phase angle? b) what is the power factor for this circuit? c) what is the impedance of the circuit? d) what is the rms voltage of the source? e) what is the average rate at which electrical energy is converted to thermal energy in the resistor? f) what is the average rate at which electrical energy is dissipated (converted to other forms) in the capacitor? , g) in the inductor?
Answers: 2
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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Aforce f making an angle with the horizontal is acting on an object resting on the table. which statement is true for the motion of sliding the object on the table?
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An l-r-c series circuit l = 0.123 h , r = 244 ω , and c = 7.27 μf carries an rms current of 0.452 a...
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