
Concept explainers
(a)
The fraction of the submarines volume is above the water surface when the tanks are filled with air.
(a)

Answer to Problem 92P
Explanation of Solution
Given:
Total mass of a submarine (including crew and equipment) is
The volume of a pressure hull is
The volume of a ballast tank is
Total volume of the submarine is,
Formula used:
The fraction of the submarine’s volume above the surface when the tanks are filled with air can be written as,
Where
Apply
Where
Using Archimedes’ principle, the buoyant force
Where,
Weight of the submarine is,
Where,
Substituting for
Substituting for
Calculation:
Substituting the numerical values in equation
Conclusion:
The fraction of the submarines volume is above the water surface when the tanks are filled with air is
(b)
The quantity of water must be admitted in to the tanks to give the submarine a neutral buoyancy.
(b)

Answer to Problem 92P
Explanation of Solution
Given:
Total mass of a submarine (including crew and equipment) is
The volume of a pressure hull is
The volume of a ballast tank is
Total volume of the submarine is,
Neglect the mass of any air in the tanks,
Specific gravity of sea water is
Formula used:
The volume of the sea water in terms of its mass and density is,
Applying the condition for neutral buoyancy,
Where,
Using Archimedes’ principle, the buoyant force
Where,
Weight of the submarine is,
Where,
Weight of the sea water is,
Where,
Substituting for
Substituting for
Calculation:
Substitute the numerical values in equation
Conclusion:
The quantity of water must be admitted in to the tanks to give the submarine a neutral buoyancy is
Want to see more full solutions like this?
Chapter 13 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
- Sketch a sign wave depicting 3 seconds of wave activity for a 5 Hz tone.arrow_forwardSketch a sine wave depicting 3 seconds of wave activity for a 5 Hz tone.arrow_forwardThe drawing shows two long, straight wires that are suspended from the ceiling. The mass per unit length of each wire is 0.050 kg/m. Each of the four strings suspending the wires has a length of 1.2 m. When the wires carry identical currents in opposite directions, the angle between the strings holding the two wires is 20°. (a) Draw the free-body diagram showing the forces that act on the right wire with respect to the x axis. Account for each of the strings separately. (b) What is the current in each wire? 1.2 m 20° I -20° 1.2 marrow_forward
- 2). How much energy is stored in the 50-μF capacitor when Va - V₁ = 22V? 25 µF b 25 µF 50 µFarrow_forward9). A series RC circuit has a time constant of 1.0 s. The battery has a voltage of 50 V and the maximum current just after closing the switch is 500 mA. The capacitor is initially uncharged. What is the charge on the capacitor 2.0 s after the switch is closed? R 50 V a. 0.43 C b. 0 66 C c. 0.86 C d. 0.99 C Carrow_forward1). Determine the equivalent capacitance of the combination shown when C = 12 pF. +11/20 2C C Carrow_forward
- 3). When a capacitor has a charge of magnitude 80 μC on each plate the potential difference across the plates is 16 V. How much energy is stored in this capacitor when the potential difference across its plates is 42 V? a. 1.0 mJ b. 4.4 mJ c. 3.2 mJ d. 1.4 mJ e. 1.7 mJarrow_forward5). A conductor of radius r, length & and resistivity p has resistance R. It is melted down and formed into a new conductor, also cylindrical, with one fourth the length of the original conductor. The resistance of the new conductor is a. 1 R 161 b. 1 R C. R d. 4R e. 16Rarrow_forward8). Determine the magnitude and sense (direction) of the current in the 10-Q2 resistor when I = 1.8 A. 30 V L 50 V 10 Ω 20 Ω a. 1.6 A right to left b. 1.6 A left to right C. 1.2 A right to left d. 1.2 A left to right e. 1.8 A left to right R PGarrow_forward
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-HillCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College





