**Problem 4.** A cork ball \((SG = 0.21)\) with a diameter of \(D = 0.30 \, m\) is tied to an object on the bottom of a river as shown. (a) For an angle of \(\beta = 30^\circ\), estimate the speed of the river current neglecting the weight of the cable and the drag on it.(b) Briefly discuss how the angle changes for a range of speeds from 0.4 m/s to 10 m/s.**Diagram Explanation:**The diagram shows a cork ball submerged in water, attached to the riverbed by a cable. The cable is at an angle \(\beta\) from the horizontal plane, with \(\beta\) being depicted as \(30^\circ\). The direction of the river current is represented by an arrow labeled \(U\), pointing to the right. The setup suggests analyzing the forces and conditions that determine the ball's angle and position in response to varying current speeds.

Answered: Image /qna-images/answer/05eb004e-5b03-4ebb-a3fa-caa768b978dd.jpg

Problem 4. A cork ball (SG = 0.21) with a diameter of D = 0.30 m is tied to an object on the bottom of a river as shown. (a) For an angle of 3 = 30°, estimate the speed of the river current neglecting the weight of the cable and the drag on it. (b) Briefly discuss how the angle changes for a range of speeds from 0.4 m/s to 10 m/s. U

Problem 4. A cork ball (SG = 0.21) with a diameter of D = 0.30 m is tied to an object on the bottom of a river as shown. (a) For an angle of 3 = 30°, estimate the speed of the river current neglecting the weight of the cable and the drag on it. (b) Briefly discuss how the angle changes for a range of speeds from 0.4 m/s to 10 m/s. U

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

Question

**Problem 4.** A cork ball \((SG = 0.21)\) with a diameter of \(D = 0.30 \, m\) is tied to an object on the bottom of a river as shown.

(a) For an angle of \(\beta = 30^\circ\), estimate the speed of the river current neglecting the weight of the cable and the drag on it.

(b) Briefly discuss how the angle changes for a range of speeds from 0.4 m/s to 10 m/s.

**Diagram Explanation:**

The diagram shows a cork ball submerged in water, attached to the riverbed by a cable. The cable is at an angle \(\beta\) from the horizontal plane, with \(\beta\) being depicted as \(30^\circ\). The direction of the river current is represented by an arrow labeled \(U\), pointing to the right. The setup suggests analyzing the forces and conditions that determine the ball's angle and position in response to varying current speeds.

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