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4. Balance the following chemical equations a) A,B,CD à AC, +2, + C + B,C b) ABC, + D, +E -> BD, + AD, + EC
Using the identity sin? 0 + cos² 0 = 1, find the value of tan 6, to the nearest hundredth, if sin 0 = -0.62 and 3 < 0 < 27.
This Question: 1 pt If sin = 5,0 <0<5, find the exact value of each of the following (a) sin (20) (b) cos (20) (c) sin (d) cos (a) sin (20) = (Type an exact answer, using radicals as needed.) (b) cos (20) = (Type an exact answer, using radicals as needed.) (C) sin = 0 Enter your answer in each of the answer boxes. Save for Later
9) Find the exact values Assume sina <a <* and cos B 10 with 13 Зл <B<25 a) sin(a+B) b) sin c) sin(28)
PART B: 04 Sketch graph for sin waveform and cosine waveform for AC voltage and AC current. (4 marks) (b) Obtain the energy stored in each capacitor in Figure Q4(b) under DC conditions. (6 marks) (c) Determine the current through a 200 uF capacitor whose voltage is shown in Figure Q4(c). Sketch graph for current, I versus time, t. (10 marks) 2 mF Η Λ 2 ΚΩ 5 ΚΩ ΛΜ 6 mA 3 ΚΩ ΑΛΛ 4 ΚΩ 4 mE Figure...
$, p, C MC 75 - - 1 1 1 AC 60 - - - - 1 AVC - 1 45 1 - 21 - 10 23 28 33 The figure above shows the short-run cost curves for a firm in a perfectly competitive market. The firm should shut down production in the short run if price is above AC. price is below $75. price is below $60. price is below $45.
Question 9 < > Find a if b = 123 yd, c= 116 yd and Za = 31'. yd; a = Assume Za is opposite side a, ZB is opposite side b, and Zy is opposite side c. Check Answer Question 2 < > 0/1 pt 100 $ 99 Deta 5 If cos(0) and 0 is in quadrant IV, then find exact values for each of these: 7 (a) tan(0)cot(0) -8 not a valid fraction. syntax incomplete. (b) csc(O)tan(0) =...
Find the exact value of each of the following under the given conditions below. 3x sin a= 3 50 2 <«< -*; tan B = - 13. 3 <B<x (a) sin(a+B) (b) cos (a + b) (c) sin(a-B) (d) tan (a - B) (a) sin(a+B)= 1 (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) (b) cos (a + b) = (Simplify your answer, including any radicals. Use integers or fractions for any...
In the AC circuit shown in the figure below, R = 70.0 Ω and the output voltage of the AC source is ΔVmax sin(ωt). A square circuit is shown. On its left side is an AC source of voltage ΔVmax sin(ωt). On the right side of the loop is a resistor of resistance R. (a) If ΔvR = 0.255 ΔVmax for the first time at t = 0.0110 s, what is the angular frequency of the source? rad/s (b) What...
Please help explain these two! 1. Give a unit circle argument to support sin(a + 1) =-sin(a) 2. Use the unit circle to solve sin(x) >0 for x = (0,27)