33-41 need aolution ll TM LTE2:29 PMcdn.fbsbx.comDoneA. 0,00015B. 0.00150C. 0.00165D. 0.015033. Two wave pulses, as shown in the image on the right, with equal positive amplitudes travel on a cordapproaching each other. What is the result of the oscillations whenthe pulses reach the same point?A. It is constructive interference with twice the amplitudeB. It is destructive interference with zero amplitudeC. It is constructive interference with slightly greater amplitudeD. It is constructive interference with the negative amplitude34. Interference occurs when two or more waves meet while passing though the same medium at the sametime. A special case of interference occurs when two waves of equal frequency and altitude but oppositedirections meet. The result is standing wave pattern consisting of nodes and antinodes. What are nodes?A. Points where particles of the medium are not displaced from the equilibrium positionB. Points where particles experience maximum displacementC. Lowest frequency that can be produced by a vibrating springD. Frequency higher than the fundamental frequency35. The Doppler Effect is the apparent change in the frequency of sound caused by the motion of the soundsource and/or the observer. Which of the following equations represents the effect in frequency whenboth the observer and source of motion is both moving?A. f'= Vtve]vtv,C. f =B. f' =-]lvtvs.D. Cannot be determinedFor Items 36 – 37, refer on the problem belowThe frequency of a fire engine siren is 1800 Hz. Answer the following questions, assuming the speed ofsound in air as 340 m/s,36. What frequency will a stationary person hear if the fire truck is moving towards him at 10 m/s?A. 1 855 HzВ. 1747 HzC. 1847 HzD. 1755 Hz37. What frequency will a person hear if he moves away from the stationary fire truck at 10 m/s?1 855 Hzb. 1 747 Hzc. 1847 Hzd. 1755 Hza.38. An object is dropped into a beaker containing a liquid. The object drops to the bottom of the beaker.Which of the following correctly explains the above data?A. Density of the object is greater than the density of the liquid.B. Density of the object is less than the density of the liquid.C. Mass of the object is less than the mass of the liquid.D. Volume of the liquid displaced is more than the volume of the object.39. The Specific Gravity (sp gr) of a substance is the ratio of the density of the substance to the densitysome standard substance. What is the unit of specific gravity?A. g/mB. N/m'C. m/sD. dimensionless40. What happens to air pressure at higher elevation?A. Air pressure is less because there is less air above.B. Air pressure is less because gravity is stronger.C. Air pressure is greater because there is more air below.D. Air pressure is less because the air is moving faster.41. Pressure is defined as the magnitude of the force acting perpendicular per unit area of the surface.Which of the following statement/s is/are true about pressure?A. If the area is twice as low as the force exerted, than pressure is twice the original pressure.B. Exerting greater force to a fix area increases the pressure.C. Pressure is directly proportional to forceD. All of the above42. Hydrostatic pressure is the force per unit area that a confined liquid exerts on all parts of its container

the amplitudes of waves add up vectorially

33. Two wave pulses, as shown in the image on the right, with equal positive amplitudes travel on a cord approaching cach other. What is the result of the oscillations when the pulses reach the same point? A. It is constructive interference with twice the amplitude B. It is destructive interference with zero amplitude C. It is constructive interference with slightly greater amplitude D. It is constructive interference with the negative amplitude

33. Two wave pulses, as shown in the image on the right, with equal positive amplitudes travel on a cord approaching cach other. What is the result of the oscillations when the pulses reach the same point? A. It is constructive interference with twice the amplitude B. It is destructive interference with zero amplitude C. It is constructive interference with slightly greater amplitude D. It is constructive interference with the negative amplitude

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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