Calculate the amplitude A of a progressive wave with frequency f= 99 Hz and wavelength > =10 m if its displacement at the point x = 0.1 m at the time t= 10 s is 0.3 m. Provide your answer in SI units. Enter your answer in the box below. Answer: Choose...

The expression giving the frequency of the modes of N bipolar pendulum system consisting of pendulum and spring is written below. a) The number of movable coupled pendulum is 3. Find the mode frequency of the system. b) The weight of the masses attached to the pendulums is 10 grams. The force constant is 5 N / m. Pendulum length is l = 30 cm. Calculate the numerical values of the frequencies you found in the previous question. Required formulas are given below. ( I translated the question below.)

y" + 257²y = 100 cos wt Find the period of the oscillator's response (period of the slow sine) for w =15. Round your answer to 3 decimal places. Your Answer:

A ball is dropped from the top of an abandoned well. Exactly 6 seconds later, the sound of the ball hitting the bottom is heard by the person standing at the top of the well. How deep is the hole? Assume that the distance fallen by the ball int seconds is d = 16t", and that sound travels at a speed of 1100 ft/sec. The well is feet deep. Round your answer to the nearest tenth. Submit Question G Search or type URL esc # $4 % 6 1 2 3 W E R Q tab

A traveling wave is described by the equaion that follows. D(x,t) = 54.2sin(0.75x-65t), where x is in meters and t is in seconds. What is the wavelength (in meters) of this wave? Add your answer De

(a) Fig. 2 represents two waves with nearly equal angular frequencies w, and w2 which superimpose in water. Consider (w1 – w2) = Aw is very small. Deduce the equation for the resultant displacement. i. ii. Analyze the nature of the amplitude of the resultant wave. iii. Establish a relation between phase velocity and group velocity of the resultant wave. -2 1

A sound source plays middle C (359 Hz). How fast would the source have to go to raise the pitch to C sharp (366 Hz)? Use 343 m/s as the speed of sound. No need to include the unit. Write your answer in whole numbers. Round your answer to 0 decimal places. Add your answer

A)Draw the standing wave pattern in an open air column for the 4th resonant length.   B) What would the first resonant length be?  Answer in cm.

Suppose that there is a seismic P wave traveling at 5.1 103 m/s with a wavelength of 2.1 x 103m. (Just need help finiding part b) (a) Find the wave's frequency. 2.428Hz(b) Find the average speed of a particle of the earth's surface at a point where the wave amplitude is 2.3 cm. (The answer is not 0.351)

HW1//: find the amplitude, period, and frequency for the following waveform. a. 20 sin 377t b. 5 sin 7541 c. 10° sin 10,000t e. -7.6 sin 43.6t d. 0.001 sin 942t f. ) sin 6.2831 HW/2 Find the phase relationship between the waveforms of cach set: a. v= 4 sin(wr + 50°) i = 6 sin(wr + 40°) b. v = 25 sin(ot - 80°) i = 5 x 10- sin(wr - 10°) c. v= 0.2 sin(wt - 60°) i = 0.1 sin(wr + 20°) d. v = 200 sin(wt i = 25 sin(wr 210°) 60°) HW/3 Repeat Problem 29 for the following sets: a. v = 2 cos(ot - 30°) i - 5 sin(wt + 60°) c. v= -4 cos(wt + 90°) i = -2 sin(wt + 10°) b. v = -1 sin(wt + 20°) i - 10 sin(wr - 70°)