A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed of sbund in water if the distance of.the object from the submarine is 3625. m

A persion clapped his hands in front of a wall and heard echo later 1s. If speed of sound m air is 330 m/s, find out the distance between the person and the wall.

A SONAR (sound navigation and ranging) uses ultrasonic waves to detect and locate objects under water. In a submarine equipped with a SONAR the time delay between generation of a probe wave and the reception of its echo after reflection from an enemy submarine is found to be 77.0 s. What is the distance of the enemy submarine? (Speed of sound in water = 1450 m s^(-1) )

A submarine emits a sonar pulse, which returns from an underwater cliff in 1.02 s. If the speed of sound in salt water is 1531m/s, how far away is the cliff?

An object of mass 100 kg is accelerated uniformly from a velocity of 5 m s^-1 to 8m s^-1 in 6 s. Calculate the initial and final momentum of the object. Also, find the magnitude of the force exerted on the object.

An object is moving along a straight line with a uniform speed of 10m/s. Plot a graph showing distance versus time from t=0 to t=10s.

An object dropped from a cliff falls with a constant acceleration of 10 m/s2. Find its speed 5 s after it was dropped.

A source oscillates 50 times in 5 s. If the distance between compression and rarefaction of the medium is 10m, find out the frequency, wavelength and speed of the wave.