A sailboat is underway in the fog. What sound signal should you hear?one prolonged blast plus two short blasts every two minutesone prolonged blast every thirty minutestwo prolonged blasts plus ten short blasts every forty-five minutestwo prolonged blasts every hour

The sound wave passes from the sea-water into the air.State what happens, if anything, to• the frequency of the sound, ...............................................................................................................................................................................................................• the speed of the sound. .....................................................................................................................................................................................................................[2][Total: 8]PhysicsAndMathsTutor.com

Menu10 of 30MULTIPLE CHOICEFINISH QUIZAn echo is a _________ of a sound wave?ArefractionBreflectionCabsorbsionDtraverse

A ship uses pulses of sound to measure the depth of the sea beneath the ship. A sound pulseis transmitted into the sea and the echo from the sea-bed is received after 54 ms. The speedof sound in seawater is 1500 m / s.Calculate the depth of the sea beneath the ship

How many decibels does the sound of a rocket launch have?

Read the following short poem and answer the question that follow.              The Wind       (James Stephen)1      The wind stood up and gave a shout,2      He whistled on his fingers and 3      Kicked the withered leaves about4      And thumped the branches with his hand 5      And said he’d kill and kill and kill6      And so he will and so he willQuestion: Choose two of the sound devices used in lines 5 and 6 and explain briefly.Answer: