A policeman on duty detects a drop of \( 10 \% \) in the pitch of the horn of a moving car as it... VIDEO
A policeman on duty detects a drop of \( 10 \% \) in the pitch of the horn of a moving car as it crosseshttps://bit.ly/YTAI_PWAP https://www.pw.live
Other Videos By PW Solutions 2023-01-16 For the sake of science a physicist jumps attached to the end of a bungee cord, carrying sound m... 2023-01-16 A racing car moving towards a cliff sounds its horn. The driver observes that the sound reflecte... 2023-01-16 рдирд┐рдореНрди рдореЗрдВ рд╕реЗ рдХреМрди рдкреАрдЯ рдирд┐рд░реНрдорд╛рдг рдХреЗ рд▓рд┐рдП рдЙрддреНрддрд░рджрд╛рдпреА рд╣реИ
(A) рд╕реНрдлреИрдЧреНрдирдо
(B) рдлреНрдпреВрдиреЗрд░рд┐рдпрд╛
(C) рдПрдиреНрдереЛрд╕рд┐рд░реЛрд╕
(D) ... 2023-01-16 A source of sound moves along a circle of radius
\( 2 \mathrm{~m} \) with constant angular veloc... 2023-01-16 A train, standing in a station yard, blows a whistle of frequency \( 400 \mathrm{~Hz} \) in stil... 2023-01-16 A bat is fitting about in a cave, navigating via ultra sound beeps, assume that the sound emitti... 2023-01-16 correct alternative.
(1) \( \mathrm{A}-3, \mathrm{~B}-2, \mathrm{C}-1 \)
(2) \( \mathrm{A}-2, \m... 2023-01-16 A source of sound emits sound waves of frequency \( \mathrm{f}_{0} \). It is moving towards an o... 2023-01-16 A sound source \( (\mathrm{S}) \mathrm{emits} \) frequency of \( 180 \mathrm{~Hz} \) when moving... 2023-01-16 An ultrasonic burglar alarm in still air transmits a signal at a frequency of \( 4.5 \times 10^{... 2023-01-16 A policeman on duty detects a drop of \( 10 \% \) in the pitch of the horn of a moving car as it... 2023-01-16 A train is moving with a constant speed \( 7 \sqrt{2} \mathrm{~m} / \mathrm{s} \) along a circul... 2023-01-16 As shown above there is two circles having radius \( \mathrm{R} \) and \( 2 \mathrm{R} \) respec... 2023-01-16 Two identical stationary sound sources, emit sound waves of frequency \( 10 \mathrm{~Hz} \), and... 2023-01-16 A source of sound producing wavelength \( 50 \mathrm{~cm} \) is moving away from a stationary ob... 2023-01-16 A musician desires to tune his violin string to a single frequency of \( 300 \mathrm{~Hz} \). Wh... 2023-01-16 If the bulk modulus of rigidity of water is 2100
\( \mathrm{P} \) MPa, the speed of sound in wat... 2023-01-16 A string of length \( 3 \mathrm{~m} \) and linear mass density \( 0.0025 \mathrm{~kg} / \mathrm{... 2023-01-16 рдирд┐рдореНрди рд╡рд┐рдХрд▓реНрдкреЛрдВ рдореЗрдВ рд╕реЗ рдХреМрди-рд╕рд╛ рд╕рд╣реА рдирд╣реАрдВ рд╣реИ?
(A) \( 2.300+0.02017+0.02015=2.3403 \)
(B) 126,000 рдореЗрдВ... 2023-01-16 A listener is at rest with respect to the source of sound. A wind starts blowing along the line
... 2023-01-16 рдирд┐рдореНрди рд╡рд┐рдХрд▓реНрдкреЛрдВ рдореЗрдВ рд╕реЗ рдХреМрди-рд╕рд╛ рд╕рд╣реА рдирд╣реАрдВ рд╣реИ?
(A) \( 2.300+0.02017+0.02015=2.3403 \)
(B) 126,000 рдореЗрдВ...
2