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A sound wave is transmitted through the water from a submarine and is reflected off another submarine back to its origin. If the sound velocity is 1605 m/s in water and the time it takes for the pulse to return is 21 seconds what is the distance from one submarine to the other?
Which of the following is the most important thing to know in order to determine the correct solution to this problem?
Group of answer choices
What is the upward force in N represented by the red arrow? (Recall Session 3 HW #4, and Session 4 #3). red arrow is up and blue arrow is down with 100 N
A cube of copper with each edge having the dimension 12.7 mm, is put in a vise and squeezed by a force of 215 N exerted by either side of the vise. What is the stress in the copper cube
A 0.40 kgball, attached to the end of a horizontal cord, is rotated in acircle of radius 1.5 m on a frictionless horizontal surface. what is themaximum speed the ball can have
A 45.0 g ball of copper has a net charge of 2.1 µC. What fraction of the copper's electrons have been removed
A wheelchair athlete is training on a stationary ergometer. Her wheel's angular velocity is 3 rev/s and diameter is 80.0 cm. What is the linear velocity at the wheel's circumference
A 75g lead sinker at 90 degrees celsius is placed in 500 cm^3 of water at 20 degrees celsius. What is the final temperature of the sinker
What is the significance of the negative sign in the equation E- = -∇ V ?
To get to a concert in time, a harpsichordist has to drive 123 miles in 2.03 hours. If he drove at an average speed of 55.0 mi/h in a due west direction for the first 1.22 h, what must be his average speed
You have just built a house out in the country and it comes to your attention that you need to install a lightning rod. Being naturally curious you ask a hardware salesperson how lightning rods work and they accurately tell you.
A car is traveling along a road, and its engine is turning over with an angular velocity of +230 rad/s. Determine what would have been the angular displacement of the engine if its angular velocity had remained constant at the initial value of +230 ..
What are some differences between a longitudinal wave and a electromagnetic wave?
The Bohr model of the hydrogen atom pictures the electron as a tiny particle moving in a circular orbit about a stationary proton. Determine what is the electron's centripetal acceleration
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