. Calculate the period of each of the following values of frequency: a. 1 Hz b. 60 Hz c. 500 Hz d. 1 kHz e. 200 kHz f. 5 MHz
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- If the frequency of a waveform is 50 Hz, then the time period of the waveform is O a. 0.2 msec O b. 0.002 msec O c. 2 sec o d. 0.02 Sec1. A particle moves with a simple harmonic motion through space. it takes 5ms to complete one cycle. What is its frequency in rad/s 2. A particle moves with a simple harmonic motion through space. it takes 3ms to complete two cycles. What is its frequency in HzA swing is observed from the side. It moves from extreme left to extreme right in 1.5 seconds, what is the frequency in rad/s *
- d) The generated voltage of a turbine at time t seconds is given by: v(t) = Vgsin(0.4nt + Where Vs is generator voltage in Volts. Evaluate the following: iii. The voltage of the generator after 2.5 seconds if Vs = 70 V. The voltage at time t = 0 seconds to 3 significant figures The time when the generator first reaches maximum voltage, the period, the frequency, and the time displacement. iv. v. Your answer to this part of the task should be supported by suitably annotated graphical evidence to help understanding by a non-technical audience. e) If the cable of this generator has a shape of the form: y = 70cosh(x/55)sinh?( m. Provide fully explained solutions to the following: vi. The value of y when x = 10 to 3 significant figures The value of x when y = 40 to 3 significant figures Provide fully explained graphical evidence to justify your answers to part (vii) vii. viii.5. Dunkerley's formula can be used to find the highest natural frequency Choose True False LON LYQ1 Find the average value of periodic wavefrom of Fig.below over one full cycle. 35 20 (V) 0 -20 1 20 20 + 30 1 cycle 50 60 70 (ms) المتحدة الأمريكية)
- Q2 choose the correct answer 1. The static * :characteristics are accuracy O Precision Repeatability O all of them OQI/Find the periodicity for the following trigonometric functions: a) Y=cot(2x). b) Y=sin(x/2).Question -3 Calculate the sampling frequency for a 4.5 KHz audio signal if it is sampled at a rate of i. 15 % lower than the minimum Nyquist's sampling frequency. ii. 15 % higher than the minimum Nyquist's sampling frequency. Comment on your answers for both the above parameters. iii.
- Rby= 154.6915 Rbx=543.7847 Ra=98.8795A(n)_______varies the frequency of an electronically altered sine wave, which affects the speed of alternating current motors.Q5. For a point at distance 50 m and angle 450 to the axis which of the following statements are correct? Consider an infinite baffled piston of radius 5 cm driven at 2 kHz in air with velocity 10 m/s. You may choose multiple options. a. The constant term is given by 515.03 b. The distance dependent term is given by e-jk50/50 c. The directivity term is given by j1(Ka sin 450)/sin 450 d. There is no time dependent term.