A 0.4 Gram mass is required to stretch a soap film confined in arectangular frame by 2mm downward before the film breaks. If the length of the movable bar is 2.5 cm, what will be the surface tension and change in surface free energy of the soap film?

A 0.4 Gram mass is required to stretch a soap film confined in arectangular frame by 2mm downward before the film breaks. If the length of the movable bar is 2.5 cm, what will be the surface tension and change in surface free energy of the soap film?

Name: A 0.4 Gram mass is required to stretch a soap film confined in arectan
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: A 0.4 Gram mass is required to stretch a soap film confined in arectangular frame by 2mm downward before the film breaks. If the length of the movable bar is 2.5 cm, what will be the surface tension and change in surface free energy of the soap film?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Conservation Of Energy

Section: Chapter Questions

Problem 16P

See similar textbooks

Similar questions

A block of mass m = 200 g is released from rest at point along the horizontal diameter on the inside of hemispherical bowl of radius R = 30.0 cm, and the surface of the bowl is rough (Fig. P8.23). The blocks speed at point is 1.50 m/s. Figure P8.23 (a) What is its kinetic energy at point ? (b) How much mechanical energy is transformed into internal energy as the block moves from point to point ? (c) Is it possible to determine the coefficient of friction from these results in any simple manner? (d) Explain your answer to part (c).
The potential energy of two atoms in a diatomic molecule can be approximated by the Lennard- Jones potential U(r) = a/r¹² — b/r6, where r is the distance between the two atoms, and a and b are positive constants. a) Find the force F(r) on one of the atoms as a function of r. b) Find the equilibrium distance between the two atoms. Is this equilibrium stable? c) Suppose the distance between the two atoms is equal to the equilibrium distance found in part b). What minimum energy must be added to the molecule to break the two atoms apart? (This is called the dissociation energy of the molecule.)
Q1 A brick with a dimensions 2.Scm length 3.5cm width and Bcm height having a density 120 kg/m The brick is talling down to the earth surface giving potential energy SOok. What is the initial height of the brick if the final position of the brick is an the earth surface?
The surface tension of soap solution is 0.035 N/m. The energy needed to increase the radius of the bubble from 4 cm to 6 cm is (a) 1.5 x 10 J (b) 1.5 x 10-2 J (c) 3 x 10-2J (d) 1.5 x 104J
27.The potential energy function for either one of the two atoms in a diatomic molecule is often approximated by U (x)=-a/x¹² -b/x6 where x is the distance between the atoms. (a) At what distance of seperation does the potential energy have a local minimum (not at x = ¥)?(b) What is the force on an atom at this separation? (c) How does the force vary with the separation distance? Solution a. -2a b 1/6 ; b. 0; c. ~x6
of a copper wire of uniform cross section and Ex. 70: find the energy stored per unit volume of length 1.5 m, when it is stretched to a length of a copper wire of uniform cross section and of length 1.5 m, when it is stretched to length a of 1.51 m by a stress of 3 x 102 N/m2.
A scallop forces open its shell with an elastic material called abductin, whose Young's modulus is about 2.0 x 106 N/m².
This time, the pendulum is 1.93 m long and has a mass of 3.17 kg. You give it a push away from vertical so that it starts swinging with a speed of 1.62 m/s. Due to friction at the pivot point, 1.00 Joule of the pendulum s initial kinetic energy is lost as heat during the upward swing. What maximum angle will it reach, with respect to the vertical, before falling back down? 18.7 degrees 21.5 degrees 31.8 degrees 26.7 degrees
A cork gun contains a spring whose spring constant is 17 N/m. The spring is compressed by a distance ΔX = 4.8 cm and used to propel from the gun a cork of mass 1.86 g. Assuming the cork is released when the spring passes through its equilibrium position Xeq, what is the speed of the cork as it is released from the spring? I have calculated this answer to correctly be 4.588 m/s. The question I am having trouble with is: Suppose now that the cork temporarily sticks to the spring, causing the spring to extend 2 cm beyond its equilibrium position before separation occurs. What is the speed of the cork as it is released from the spring in this case?
The potential energy function for either one of the two atoms in a diatomic molecule is often approximated by U(x) = −a/x12 − b/x6 where x is the distance between the atoms. (a) At what distance of seperation does the potential energy have a local minimum (not at x = ∞)? (b) What is the force on an atom at this separation? (c) How does the force vary with the separation distance?
A cork gun contains a spring whose spring constant is 17.0 N/m. The spring is compressed by a distance X=45 cm and used to propel from the gun a cork of mass 2.43 g. Assuming the cork is released when the spring passes through its rest length position Xeq, what is the speed of the cork as it is released from the spring?
A drop of mercury of radius 0.1 cm is broken into 8 droplets of same size. Find the work done if the surface tension of mercury is 540 dyne/cm.