Can some please help me with the following questions I don't need explanation just an fast please

MONITORING Examplify | PHYSICS1FINALS2022 - MARINA GUIRGUIS (2053226) TIME REMAINING 02:05 TOOL KIT FILTER > Question 49 FLAG QUESTION Q.52. Calculate the angular momentum of 10kg disk of radius 2m spinning at 15 rad/s. AT Answers A - D A 10 kg /s B 100 kg /s C 300 kg /s 51 D 350 kg /s 52 53 54 55 Previous 49 OF 100 QUESTIONS VERSION 2M.9.2 MacBook Air PA 5. MONITORING Examplify / PHYSICSIFINALS2022 - MARINA GUIRGUIS (2053226) TIME REMAINING 01:38 EXAMA CONTROLS TOOLKIT Question 93 FLAG QUESTION Q.08. Jay hears sound of the fire truck on his way to work. If he perceives the pitch of the siren to be higher than usual, what does that toll us about the direction the fire truck is moving relative to Jay? Answers A - D A The fire truck is moving radially as seen by Jay B The fire truck is not moving with respect to Jay C The fire truck is moving away from Jay D The fire truck is moving towards Jay Next Previous 93 OF 100 QUESTIONS VERSION 2M.9.2 MacBook Air O Q. MONITORING Examplify | PHYSICS1FINAL$2022 . MARINA QUIRQUIS (2053226) TIME REMAINING 01:39 TOOLKITS FILTER > Question 96 FLAG QUESTION Q.05. Which of the following condition holds when a plane produces a sonic boom? Answers A - D 93 A It emits sound waves of very long wavelength. B It emits sound waves of high frequency. c It fly's at high altitudes. D It fly's faster than the speed of sound. Previous 96 OF 100 QUESTIONS VERSION 2M.9.2 MacBook Air So FA OMONITORING Examplify | PHYSICS IFINAL$2022 . MARINA GUIRGUIS (2053226) TIME REMAINING 01:38 Question 94 v Had QUESTION Q.07. You are given two wind instruments of identical length, One is open at both the ends whereas other is closed at one end, Which is able to produce the lowest frequency sound wave? Answers A : D A open at both ends Closed at one end C Both creates same range of frequency D None Next Previous 94 OF 100 QUESTIONS VERSION 2M 9.2 MacBook Air Q O 80 FA % 6. MONITORING Examplify PHYSICSIFINAL 82022 - MARINA GUIRGUIS (2053276) TIME REMAINING 01 39 DAM CONTROLS ~ ATER Question 98 FLAG QUESTION Q.03, What kind of phenomenon makes noise cancelling headphones work? Answers A - D A Acoustic Impedance B Beat Frequency C Constructive Interference 96 D Destructive Interference 97 98 100 Previous 98 OF 100 QUESTIONS VERSION 2M 9 2 MacBook Air Y'S Q So FS O ese %MONITORING Examplify | PHYSICS1FINAL$2022 . MARINA QUIRQUIS (2053226) TIME REMAINING 01.38 TOOL KIT FILTER Question 92 FLAG QUESTION Q.09. At points in a sound wave where the gas is maximally compressed, the pressure; Answers A - D A Is a maximum. B Is a minimum. C Is equal to the ambient value. D Is greater than the ambient value but less than the maximum. Previous 92 OF 100 QUESTIONS VERSION 2M.9.2 MacBook Air 80 6 W NMONITORING Examplify | PHYSICSIFINALS2092 . MARINA GUIRQUIS (2053226) TIME REMAINING 01:39 EXAM CONTROLS TOOLKIT & Question 09 FLAG QUESTION ... Q.02. Describe the relationship between intensity of the sound wave and decibel level of sound? Answers A - D A They are inversely proportional They are directly proportional C The decibel level is proportional to the logarithm of the intensity 96 D The decibel level is proportional to the square root of the intensity 97 98 100 Previous 99 OF 100 QUESTIONS VERSION 2M. 9.2 MacBook Air Q FA % $ 6 5 @. MONITORING Examplify PHYSICSIFINALS2022 - MARINA GUIRGUIS (2053226) TIME REMAINING 01:38 EXAM CONTROLS - TOOL KIT : FILTER > Question 95 FLAG QUESTION Q.06. An alteration in the observed frequency of sound due to motion of either the source or the observer is termed as which of the 92 following? Answers A - D 93 A Doppler effect Sonic booms C Bow wakes Antinode 100 Next Previous VERSION 2M 9.2 95 OF 100 QUESTIONS MacBook Air 4A FO O 80. MONITORING Examplify PHYSICSIFINALS2022 - MARINA GUIRGUIS (2053226) TIME REMAINING 01:38 EXAM CONTROLS TOOLKIT ALTER > a Question 91 FLAG QUESTION . .s Q.10. During a time interval of exactly one period of vibration of a tuning fork, the emitted sound travels a distance: Answers A - D A Equal to the length of the tuning fork B Equal to twice the length of the tuning fork c Decreases with time O D Of one wavelength in air Next Previous 91 OF 100 QUESTIONS VERSION 2M.9.2 MacBook Air M 80 O BSC % 6Examplify | PHYSICSIFINAL82022 - MARINA GUIRGUIS (2053226) TIME REMAINING 02:05 FILTER Question 50 FLAG QUESTION Q.51. A 15 kg disk of radius 4m is spinning at 20 rad/s. What is the inertia of the disk? Answers A - D (# ) A 30 kg 60 kg C 100 kg 52 D 120 kg 53 54 55 56 Previous 50 OF 100 QUESTIONS VERSION 2M 9,2 MacBook Air O % 5. MONITORING Examplify | PHYSIOSIFINAL$2022 - MARINA GUIRGUIS (2053226) TIME REMAINING 01:39 EXAM CONTROLS Question 97 FLAG QUESTION Q.04. The rise in pitch of an approaching siren is an apparent increase in its: Answers A - D A Speed 94 Amplitude 95 Frequency 96 D Wavelength 98 99 100 Previous 97 OF 100 QUESTIONS VERSION 2M. 9.2 MacBook Air 80 Q 13 O esc %MONITORING Examplify | PHYSICS1FINAL$2022 - MARINA GUIRGUIS (2053226) TIME REMAINING 02:05 EXAM CONTROLS~ TOOL KIT FILTER Question 48 ~ FLAG QUESTION Q.53. A 7kg disk with radius 2m is spinning at an angular speed of 18 rad/s. Calculate its rotational kinetic energy? Answers A - D A 126 J B 1026 J 2026 J 50 2268 J 51 52 53 54 Previous 48 OF 100 QUESTIONS VERSION 2M.9,2 MacBook Air FaTIME REMAINING 01.39 BEAM CONTROL TOOK HIS Question TOO FLAG QUESTION Q.01. Two sounds with different wavelengths have same speed. Which sound has higher frequency? Answers A : D A One with longer wavelength B One with shorter wavelength C Neither, since speed is same or D Need more information 97 98 Previous 100 OF 100 QUESTIONS VERSION 2M.9.2 MacBook Air Q 80 F3 % 6 5 W # 4