pls answers only. thanks.

1.

The figure shows transverse acceleration ay versus time t of the point on a string at x = 0, as a wave written in the form y(x, t) = ymsin(kx - wt + @) passes through that point. The scale of the vertical axis is set by as = 400 m/s2. What is , in the range from - x to +r? (Caution: A calculator does not always give the proper inverse trig function, so check your answer by substituting it and an assumed value of w into y(x, t) and then plotting the function.) a, (m/s?) Q =In a series oscillating RLC circuit, R = 16.4 0, C = 31.7 pF, L = 9.28 mH, and E = Emsinwdt with Em = 44.7 V and wd = 3050 rad/s. For time t = 0.431 ms nd (a) the rate P3 at which energy is being supplied by the generator, (b) the rate PC at which the energy in the capacitor is changing, (c) the rate PL at which the energy in the inductor is changing, and (d) the rate PR at which energy is being dissipated in the resistor. (e) Is the sum of PC, PL, and PR greater than, less than, or equal to P3? An ac generator produces emf '2? = an sin(wd t - 7r/4), where %m = 31.3 V and wd = 378 rad/s. The current in the circuit attached to the generator is given by i(t) = I sin(wd t + 7r/4), where I = 641 mA. (a) At what time after t = 0 does the generator emf rst reach a maximum? (b) At what time after t = 0 does the current rst reach a maximum? (c) The circuit contains a single element other than the generator. Is it a capacitor, an inductor, or a resistor? (d) What is the value of the capacitance, inductance, or resistance, as the case may be? (c) (d) Number i 0.13 Units\