Proble: ) Please choose the correct answer for the below questions: The force of friction has the same direction as the velocity. Select one: True False A ball hangs motionless at the end of a spring. The net force on the ball is equal to zero. Select one: True False Young's modulus depends on the size and shape of an object.

Proble: ) Please choose the correct answer for the below questions: The force of friction has the same direction as the velocity. Select one: True False A ball hangs motionless at the end of a spring. The net force on the ball is equal to zero. Select one: True False Young's modulus depends on the size and shape of an object.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 60P: A 100-N weight is attached to a free end of a metallic wire that hangs from the ceiling. When a...

See similar textbooks

Similar questions

A 100-N weight is attached to a free end of a metallic wire that hangs from the ceiling. When a second 100-N weight is added to the wire, it stretches 3.0 mm. The diameter and the length of the wire are 1.0 mm and2.0 m, respectively. What is Young’s modulus of the metal used to manufacture the wire?
Check Your Understanding Explain why the concepts of Young’s modulus and shear modulus do not apply to fluids.
ASK YOUR TEACHER PRACTICE ANO A light spring of force constant k = 150 N/m rests vertically on the bottom of a large beaker of water (Figure a). A 4.58-kg block of wood (density = 650 kg/m³) is connected to the spring, and t block-spring system is allowed to come to static equilibrium (Figure b). What is the elongation AL of the spring? cm T AL 171
1. 0/1 POINTS PREVIOUS ANSWERS OSCOLPHYS2016 5.3.WA.034. MY NOTES ASK YOUR TEACHER Calculate the force (in N) a piano tuner applies to stretch a steel piano wire 7.90 mm, if the wire is originally 0.810 mm in diameter and 1.30 m long. Young's modulus for steel is 210 x 10° N/m2. 13.2 Consider the basic definition for Young's modulus. Check units for consistency. What is the cross sectional shape of a cylindrical wire? N Additional Materials O Reading Submit Answer Practice Another Version 2. -/1 POINTS OSCOLPHYS2016 5.3.WA.038. MY NOTES ASK YOUR TEACHER During a wrestling match, a 116 kg wrestler briefly stands shorten in length? The bone can be represented by a uniform rod 38.0 cm in length and 2.10 cm in radius. Assume Young's modulus for bone under compression is one hand during a maneuver designed to perplex his adversary. By how much (in m) does the upper arm bone 9 x 10° N/m2. Additional Materials O Reading
I need help with part B please. Thank you! In the Challenger Deep of the Marianas Trench, the depth of seawater is 10.9 km and the pressure is 1.16×10^8 Pa, (about 1150 atmospheres). (A) If a cubic meter of water is taken to this depth from the surface (where the normal atmospheric pressure is about 1.0×10^5 Pa), what is the change in its volume? Assume that the bulk modulus for seawater is the same as for freshwater 2.2×10^9 Pa. Answer: -5.3E-2 m^3 (B) At the surface, seawater has a density of 1.03×10^3 kg/m^3. What is the density of seawater at the depth of the Challenger Deep? Express your answer in kilograms per cubic meter.
The “lead” in pencils is a graphite composition with a Young’s modulus of about 1×10^9 N/m2. Calculate the change in length of the lead in an automatic pencil if you tap it straight into the pencil with a force of 4.0 N. The lead is 0.50 mm in diameter and 60 mm long. (b) Is the answer reasonable? That is, does it seem to be consistent with what you have observed when using pencils?
A cart of mass m A sliding with friction on a horizontal rail will be pulled by a suspended mass (of mass m B), the two objects being connected by a rope passing through a pulley (see photo). The goal is to modelize an equation that describes friction using system dynamics.find an equation giving the modulus of kinetic friction (fc) under the horizontal slider in motion when it is braked, ie subjected only to friction. Then test your model for the kinetic friction coefficient uc and its uncertainty for this phase of motion using the following values: We use g = (9.81 ± 0.01) m/s^2 as usual. mA = (0.375 ± 0.005)kg; mB = (0.23 ± 0.004) kg; a= (3.52 ± 0.15) m/s^2;
A.20 m long spring is attached to the wall. When pulled horizontally with a force of 100 N, the spring stretches to a length of .30 m. -.20 m .30 m 100 N a) Calculate the value of the spring constant.
Consider two geometrically identical marbles stacked in a container as shown. The radius of each of the marbles is R. while the width of the container is 2.9R The marble at the top has a weight 0.78 N while the weight of the lower marble has a weight of 0.84 N. What is the magnitude of the normal force at point B? Express your answer in Newtons and with two decimal places. C A В
Calculate the force (in N) a piano tuner applies to stretch a steel piano wire 8.70 mm, if the wire is originally 0.830 mm in diameter and 1.35 m long. Young's modulus for steel is 210 x 109 N/m2. N
This exercise is part of a series of problems aimed at modeling a situation by progressively refining our model to take into account more and more parameters. This progressive approach is very close to whatwhat do professional scientists do! contextWe want to lower a suspended load in a controlled way, so that it hits the ground with a speed whose modulus is not too great. To slow down the descent, we added a resort behind the mass (A), Lasuspended load (B) is connected by a rope passing through a pulley to another mass (A), which slides on a horizontal surface with friction.InformationThe masses of loads A and B are known.The mass of the rope itself is negligible (very small compared to the loads).The pulley has negligible mass and can rotate without friction.Load B is initially stationary and is at a known height h.The surface on which mass A is placed is horizontal.There is friction under mass A: the kinetic friction coefficient u, is known.The rope attached to mass A is perfectly…
A string has a diameter of 1 cm and the original length of 2 m. The string is pulled by a force of 200 N. Determine the change in length of the string! Young’s modulus of the string 5x109N/m2.