Question Problem 4: The three-phase power and line-line ratings of the electric power system shown in Figure are given below. 1 T! Line M 61: 60 MVA 20 KV X = 9% T1: 50 MVA 20/200 kV X = 10% T2: 50 MVA 200/20 kV X = 10% M:43.2 MVA 18 kV X = 8% Line: 200 KV Z = 120 + 200 - (a) Draw an impedance diagram showing all impedances in per unit on a 100-MVA base. Choose 20 kV as the voltage base for generator. (b) The motor is drawing 45 MVA, 0.80 power factor lagging at a line-to-line terminal voltage of 18 kv. Determine the terminal voltage and the internal emf of the generator in per unit and in kv.

BC:8.2 The periodic waveform, S(1), shown below, has a Fourier series expansion of the form 0 # « PG 1) Waveform for Problem BC:8.2 ro ts) Determine a formula for the coefficients, que using the definition integral. Evaluate the coefficients (0), Q1, Q.1, ag and a 2. If the values are complex, express them in polar form with the angle in degrees. where the periodic signal, r(t), can be expressed as a Fourier series: 20- Ë cxp (*) 2.) Find the value of A in the formula relating =(1) to SC) b.) Use the properties of the Fourier series to express the relationship between the ax coefficients from problem 8.2 and the y coefficients for r(1). c.) Evaluate the coefficients 70, 71, 7-1,72 and y 2. If the values are complex, express them in polar form with the angle in degrees. BC:8.3 The periodic waveform, g(1) shown below is te lated f(t) from Problem 8.2 by a DC offset and a time shift. Waveform for Problem BC:8.3 siisió i que where the periodic signal, 9((), can be expressed as a Fourier series: 9(e) = Bu exp (kt) a) Show a formula relating g(t) to f(t) that expresses the de offset between the two signals and the time shift between them b.) Use the properties of the Fourier series to express the relationship between the our coefficients from problem 8.2 and the Be coefficients for g(t). c.) Evaluate the coefficients Bo, B1, B1, B, and B 2. If the values are complex, express them in polar form with the angle in degrees. BC:8.4 The periodic waveform, 2(), shown below is related to s(t) from problem 8.2 by the relationship s(t) = A -(0) Waveform for Problem BC:8.4

Receivables amount to P150,000. Receivable turnover is \( 10 \mathrm{x} \) and inventory is maintained at a level equal to 15 days' sales. Selling price per unit is P100 and has gross profit ratio of \( 40 \% \). A proposal has been made to change the term credit to \( \mathrm{n} / 60 \) to result to an increase in sales volume by one-third or by 5,000 units. Under this proposal, bad debts losses are estimated at \( 1 \% \) to \( 3 \% \) of sales but inventory turnover shall remain the same. How much is the increased accounts receivable? How much is the increased inventory? Compute for the increased operating income.

thank you😃, this will also help me in understanding the concept on this topic😃 2. Express the following absolute voltage gain to decibel power gain assuming that the resistance level are the same at the input and output. a. Av 2 b. Av = 21 C. Av = 0.2 d. Av = 10 =

Vibrations Homework 1 1. (15 pts) A system consists of two cantilever beams (with an equivalent spring constant k1 and k2, respectively) and k1 two springs (k3 and k4) combined in the configuration shown. For k1-k2-k3 k4-100 N/m, calculate the equivalent spring constant of the system with respect to the xcoordinate. k3 k2 Ka 2. (15 pts) In the figure, for a Vibrations Homework 1 1. (15 pts) A system consists of two cantilever beams (with an equivalent spring constant k1 and k2, respectively) and k1 two springs (k3 and k4) combined in the configuration shown. For k1-k2-k3 k4-100 N/m, calculate the equivalent spring constant of the system with respect to the xcoordinate. k3 k2 Ka 2. (15 pts) In the figure, for a 10 cm, b 20 cm, m1- m2 10 Kg, and Jo 10 Kg-m2, calculate the equivalent mass with respect to the x coordinate.

please help! The energy of a photon is related to its frequency through the following equation \[ E=h v \] where \( E \) is the energy, \( h \) is Planck's constant, and \( v \) is the frequency. Rearrange the equation to solve for \( v \). A photon has an energy of \( 4.10 \times 10^{-19} \mathrm{~J} \). What is the frequency of the photon?

An object with total mass mtotal = 17.3 kg is sitting at rest when it explodes into three pieces. One piece with mass m1 = 4.9 kg moves up and to the left at an angle of θ1 = 20° above the –x axis with a speed of v1 = 25.5 m/s. A second piece with mass m2 = 5.1 kg moves down and to the right an angle of θ2 = 25° to the right of the -y axis at a speed of v2 = 21 m/s. What is the x-component of the velocity of the third piece? What is the y-component of the velocity of the third piece? What is the magnitude of the velocity of the center of mass of the pieces after the collision? Calculate the increase in kinetic energy of the pieces during the explosion.