Concept explainers
A high-pass tiller passes signals with frequencies that are higher than a certain cutoff frequency. In this filter the ratio of the magnitudes of the voltages is given by:
where
(a) Make a 3-D mesh plot of
(b) Make a plot that is a projection on the x z plane.
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MATLAB: AN INTRODUCTION WITH APPLICATIO
- Tsunami Waves and BreakwatersThis is a continuation of Exercise 16. Breakwaters affect wave height by reducing energy. See Figure 5.30. If a tsunami wave of height H in a channel of width W encounters a breakwater that narrows the channel to a width w, then the height h of the wave beyond the breakwater is given by h=HR0.5, where R is the width ratio R=w/W. a. Suppose a wave of height 8 feet in a channel of width 5000feet encounters a breakwater that narrows the channel to 3000feet. What is the height of the wave beyond the breakwater? b. If a channel width is cut in half by a breakwater, what is the effect on wave height? 16. Height of Tsunami WavesWhen waves generated by tsunamis approach shore, the height of the waves generally increases. Understanding the factors that contribute to this increase can aid in controlling potential damage to areas at risk. Greens law tells how water depth affects the height of a tsunami wave. If a tsunami wave has height H at an ocean depth D, and the wave travels to a location with water depth d, then the new height h of the wave is given by h=HR0.25, where R is the water depth ratio given by R=D/d. a. Calculate the height of a tsunami wave in water 25feet deep if its height is 3feet at its point of origin in water 15,000feet deep. b. If water depth decreases by half, the depth ratio R is doubled. How is the height of the tsunami wave affected?arrow_forward21. (a) Find the currents in the bridge circuit in Figure 2.22. (b) Find the effective resistance of this network. (c) Can you change the resistance in branch BC (but leave everything else unchanged) so that the current through branch CE becomes 0?arrow_forwardSuppose you use geometry software to construct two secants, DC and BE, that Intersect outside a circle at F. D C If you measured DF,CF,BF, and EF, you would find that the product of the lengths of one secant segment and its external segment will equal the product of the lengths of the other secant segment and its external segment. So, DF CF = BF EF. Now, suppose you drag F and examine the changes in the measurements. Would the relationship between the segment lengths change? Complete the explanation. v equal the The product of the lengths of one secant segment and its external segment will? product of the lengths of the other secant segment and its external segment. So, DF CF BF EF will v be true.arrow_forward
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