Sound travels in a - Study guides, Class notes & Summaries

Which of the statements concerning sound transmission underwater is incorrect? -A: Sound will travel farther underwater then in air -B: Divers find it difficult to locate the direction of a sound producing source -C: Divers find it easy to talk to each other directly through water -D: Sound travels four times faster underwater than in air -Answer- C The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is: -A: 2 ata -B:1 ata -C: 4 ata -D: 3 ata -Answe...

PHYS 1260 Exam 4 with correctly explained test. Superposition and Interference - correct answers.- same wave + same wave = reinforcement - two opposite waves = cancellation - two similar waves = partial cancellation - interference patterns of overlapping waves from 2 vibrating sources - interference pattern = caused by interference b/w a pair of waves - constructive interference produces bright region where waves reinforce each other (waves arriving in phase) - destructiv...

SSI Open Water Exam With Correct Solutions 2024 Which of the statements concerning sound transmission underwater is incorrect? -Sound will travel farther underwater then in air -Divers find it difficult to locate the direction of a sound producing source -Divers find it easy to talk to each other directly through water -Sound travels four times faster underwater than in air - correct answer.-Divers find it easy to talk to each other directly through water The absolu...

CALAOMS FINAL EXAM QUESTIONS AND ANSWERS LATEST UPDATE 2023-2024. Name the two systems that comprise the autonomic nervous system: - Answer Parasympathetic and sympathetic The heart is divided into _____ chambers. The upper chambers are called _____ while the lower chambers are called _____. - Answer 4, atria, ventricles Continue the pathway of the blood flow: From the lungs where it picked up oxygen, blood travels through the _____ vein to the _____ atrium, past the _____ valve to the ___...

RNAS C Practice Test Review 437 Questions with Verified Answers A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. if in series, voltage drops would occur they can be treated together If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: A. 25%. B. 33%. C. 67%. D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...

Progression: Field Tech IV - V Conventional Questions and Answers 100% Pass Which of the following is most typical of a broadband network? Multiple analog channels What components are common to all computer systems? (Check all that apply.) Processor Memory Storage I/O What does I/O stand for? Input / Output A NIC is a device used for: Signaling A sound card is what general type of computer component? Input/output Which of the following is managed by the OS? Keyboard input Screen display Fi...

Describing diving with the acronym SCUBA came from what event? The development of the demand regulator in 1943. Earplugs: Should never be worn while diving. If a flexible air-filled container has a volume of 40 cu ft on the surface, what would the volume be at 99 feet in sea water? (rounded off) 10 cu Absolute pressure is defined as: The total pressure exerted on an object. The greatest relative pressure change in sea water takes place between ____ and ____ feet. ...

m   1. Which of the following is the mRNA start codon in most cases? A. UAA B. AGU C. AUG D. UGA 2. Which of the types of RNA is the smallest? A. mRNA B. tRNA C. rRNA D. 3. Which of the following is not considered a pyrimidine? A. C B. T C. U D. G 4. Which of the following is paired correctly? A. A-G B. C-G C. A-U D. G-T 5. Which of the following characterizes a Western blot? A. Antibody/protein hybridization B. DNA/RNA combination C. RNA ...

Which of the following statements about speed and attenuation are true? a. Attenuation through and propagation speed in a particular medium are unrelated to each other. b. When a sound beam travels faster in a medium, the attenuation is less. c. When a sound beam travels slower in a medium, the attenuation is more. - ️️Attenuation through and propagation speed in a particular medium are unrelated to each other. Which of the following lists is in increasing order? a. mega, kilo, milli...

At an altitude of about 16,000 feet, the atmospheric pressure is approximately: 1/18th the atmospheric pressure at sea level Equal to the atmospheric pressure at sea level Twice the atmospheric pressure at sea level One-half the atmospheric pressure at sea level - Answer- One-half the atmospheric pressure at sea level If the volume of a gas is kept constant, what varies directly with temperature? The pressure All answers are correct The mixing The volume - Answer- The pressure Our ...