C9-103 The band wrench of Fig. P9-103 is used to un-screw an oil filter from a car. (The filter acts as if it were awheel with a resisting torque of 40 lb - ft.) The coefficientof friction between the band and the filter is 4, = 0.15, andthe friction between the end of the wrench and the filtermay be neglected.Plot P, the minimum force that must be applied to thewrench to loosen the filter, as a function of a (1 in. sas 5 in.).5.5 in.-55 in.-10 in.40 Ib-ft

Consider the diagram shown below for the wrench as shown below.

Answered: C9-103 The band wrench of Fig. P9-103…

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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1) Calculations for the red dog food can rolling down the slope in the Rube Goldberg design are as follows (we will name it Step 1): Step 1 (calculations are given): Coefficient of friction → μ = 0.14 Mass of the object-m-368 gm = 0.368kg Initial height of the object (red can on top of books) → h=8.89, cm = 0.0889 m Slope of the file folder → 9 = 14° Travelling Distance by the object = 11.5 inch = 0.292 m And length that the object will travel=h/sin 0 = 0.0889/ sin14° = 0.367 m So, the radius of the object →R=0.367 -0.292 = 0.075 m Initial Velocity of red can → u=0 Velocity and Force Calculations for Step 1: -From total mechanical energy conservation: → Initial mechanical energy = final mechanical energy → mg - In case of pure rolling, the velocity of the center of mass: →V=Ro= 0.075 x 14.28 = 1.07 m/s. -Hence the change in force acting on the object for the travel: →F=mgsin0 = 0.368 × 9.81 × sin14° =0.89 N Step 2: The Selective Step (Step 2) in this design and for the questions below…
A person is pushing on a uniform block of wood as shown in the figure and parameter table. The block of wood has mass 140 kg and a coefficient of static friction of us, w = 0.25. Assume the person only exerts a horizonatal force on the block of wood, and their shoes have a coefficient of static friction ls,p = 0.4. What is the minimum mass the person needs to be able to move the block? Also, what is the maximum value of ls, w that the wood could have and still slide instead of tip if pushed at the same location? L3 2 value units parameter L1 L2 L3 1.2 m 0.72 2.8 Minimum mass of person kg Maximum value of us,w before block would tip:
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You pick up a boiled egg using kitchen tongs as shown. The egg is 60 g and it hasa static friction coefficient of 1.4 with the tongs. Determine the minimum magnitude of force Fyou need to apply so the egg does not fall. Assume you won’t break/crack the egg.
A person is pushing on a uniform block of wood as shown in the figure and parameter table. The block of wood has mass 140 kg and a coefficient of static friction of 4, w = 0.3. Assume the person only exerts a horizonatal force on the block of wood, and their shoes have a coefficient of static friction Hs,p = 0.4. What is the minimum mass the person needs to be able to move the block? Also, what is the maximum value of 4s,w that the wood could have and still slide instead of tip if pushed at the same location? L3 value units parameter L L2 La 1.7 m 1.1 2.8 Minimum mass of person = kg Maximum value of us,w before block would tip =
A wedge assembly, composed of wedges X and Y, is designed to lift crate W whose weight is 1345 N, as shown in the figure below. What will be the maximum force P that can be applied before movement begins if the coefficient of friction for all surfaces of contact is 0.0875? Draw all necessary free-body diagrams and indicate the direction of impending motion.

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