Show that. f(x,t) = A sin² (x — ct) is a wave. What is its velocity? -

Check Your Understanding The wave function above is derived using a sine function. Can a cosine function be used instead?

Consider two waves defined by the wave functions y1(x,t)=0.50msin(23.00mx+24.00st) and y2(x,t)=0.50msin(26.00mx24.00st) . What are the similarities and differences between the two waves?

(a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s. To get the distance to the epicenter of the quake, geologists compare the arrival times of S- and P-waves, which travel at different speeds. If S- and P-waves travel at 4.00 and 7.20 km/s, respectively, in the region considered, how precisely can the distance to the source of the earthquake be determined? (b) Seismic waves from underground detonations of nuclear bombs can be used to locate the test site and detect violations of test bans. Discuss whether your answer to (a) implies a serious limit to such detection. (Note also that the uncertainty is greater if there is an uncertainty in the propagation speeds of the S- and P-waves.)

What is the difference between propagation speed and the frequency of a mechanical wave? Does one or both affect wavelength? If so, how?

A standing wave us given by y(x,t) = 10cos(5(pi)t)*sin((2/3)(pi)x) find two waves that could be superimposed to generate this standing wave.

A Particle moving with a wave 13x Function 4x = Ne on a specified Pakh (0,0.5) on the X Find the calibration Constant.

Snapshot: This a snapshot at t = 2s of the wave function: Calculate or read from the graph: y(x,t) = Axsin 2 × sin [2x (1-1)] a) Amplitude A, the wavelength A and the wave number k. b) Determine all possible periods T consis- tent with the graph. For the largest pe- riod T calculate the speed of the propaga- tion v. In which direction does the wave propagate (in +x or -x)? c) What is the maximal speed and accelera- tion of the points along the wave? y(m) 2 1 1 2 3 4 x(m)