Consider a ball is thrown from A as shown in Figure Q2. From n-t analysis, it is found that at B, the velocity component at t-axis, v, is 18 ms*. If the velocity component in the x direction at A is 12 ms, determine: a. the velocity component in the y direction at C b. the initial velocity at A C. the time t when the ball reaches D

Consider a ball is thrown from A as shown in Figure Q2. From n-t analysis, it is found that at B, the velocity component at t-axis, v, is 18 ms*. If the velocity component in the x direction at A is 12 ms, determine: a. the velocity component in the y direction at C b. the initial velocity at A C. the time t when the ball reaches D

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 52PQ: Later in this book, you will learn that sound is a wave. The wavelength and frequency f of a wave...

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Later in this book, you will learn that sound is a wave. The wavelength and frequency f of a wave are related by f = v where v is the speed of the wave. Musicians refer to these different wavelengths or frequencies by their notes (AG). Use the information in the following table to plot the frequency on the vertical axis and 1/ on the horizontal axis. Give a conceptual Interpretation and numerical value of the slope on your graph.
(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.)
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Part A is incorrect the answer is 123m but unsure how that is the answer if you can explain why?