What is the ideal mechanical advantage of a screw whose head has a diameter of 0.812 cm and whose thread width is 0.318 cm?

Q: 17. A system of weight 7 Kg is heated from its initial temperature of 10ºC to its final temperature…

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Q: If the beam attached to a hinge is 4 meters long and weighs 600 Newtons, and the sign weighs 400…

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Q: The bar shown below is inclined at 45 degrees with the horizontal and at equilibrium. The force at C…

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Q: You are tasked to balanced the two objects that has a mass of 5 kg and 15 kg in a lever machine that…

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Q: The following figure shows a 4 m bar fixed to the wall through a hinge that rotates freely, but is…

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Q: A 7.64-m uniform beam is hinged to a vertical wall and held horizontally by a 5.00-m cable attached…

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Q: The figure below shows a horizontal rod, of length 2.6 m, with forces acting on it. A 30 N force…

A: Write the equation for the moment. Moment=Force×Perpendicular distance (a) Calculate the net torque…

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Q: A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold…

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Q: A bolt has required of being tightened to 38 Nm. You pull on the end of a 25cm wrench at an angle if…

A: Given : Torque τ=38 Nm r=25 cm=25×10-2 m Angle θ=120°

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Q: The following figure shows a 4 m bar fixed to the wall through a hinge that rotates freely, but is…

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Q: I'm not sure where to start with this problem. My first instinct is to do a moment balance at one of…

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Q: A plank is 3.5 meters supported by a pivot point at the center. Child A (m = 40kg) is located 1…

A: Take the pivot point as the origin. The masses of the children are  mA=40 kgmB=30 kgmC=50 kg The…

Q: Below a 552 N and beam length L is in equilibrium and is attached to a cable which is pulling it…

A: Let the normal reaction by the wall on the beam = R  This normal reaction will be in the horizontal…

Q: Problems 1, 2, and 3 refer to the following figure and situation. A uniform beam of mass m = 19.4 kg…

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Q: You are using a screwdriver to screw in a screw that has a pitch of 3 cm. The screwdriver has a…

A: Givenscrew has a pitch of = 3 cmthe screw driver has a handle radius of = 10 cmgiven efficiency =…

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Q: The control lever is subjected to a clockwise couple of 90 N-m exerted by its shaft at A and is…

A: Given,MA=90 Nm clockwiseF=270 Na=165mm=0.165mθ=23°

Q: A young work crew is trying to quickly finish some touch-up painting to complete a job. Rather than…

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Q: A uniform rod of mass 500. g is used as a balance. We want to balance a 2.00-kg weight on the left…

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Q: Consider a see-saw of total length 5.40m balanced at its center of mass, with a child of mass…

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Q: You find that it takes a force of 275 N to open a door when you apply that force at a 90°…

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Q: A 9.0 m long uniform rod with a weight of 8 N has 3 masses hanging from it; a 4N mass 1 meter from…

A: Given Data: The length of a rod is, L=9.0 m The weight applied at a distance d1=L2=4.5 m is, W1=8 N…

Q: A 300N child sits on the left side of a see-saw 1.5m from the center. Where should a 375N be placed…

A: Given, F1=300 N r1=1.5m F2=375 N Let r2 be the distance where 375 N is placed.

Q: 37⁰ 52249 40bda6 The beam (of length 2.9 m) shown in the figure has a mass of 2.1 kg. You hang…

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Q: If a mass of 23 kg acts downward 0.3 m from the axis of rotation on one end of a board and another…

A: Given information: Mass m=23 kg. Distance of mass from the axis of rotation r2=0.3 m. Force F=82.5…

Q: What is the design velocity for a slot hood?

A: Given What is the design velocity for a slot hood, as following below.

Q: A wheel of radius 30.0 cm is rotating at a rate of 2.20 revolutions every 0.0910 s. What is the…

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Q: A typical car has an axle with 1.10 cm radius driving a tire with a radius of 27.5 cm . What is its…

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Q: A bolt has a requirement of being tightened to 38Nm. You pull the end of a 25cm wrench at an angle…

A: Required torque have magnitude of 38Nm. Length of wrench is L= 25cm = 0.25m Let magnitude of…

Q: A gardener is using a garden fork to pull a weed out of the ground. The fork is 1.2 m long and its…

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Q: he arm of a crane has a mass of 500 kg and a length of 12 m. It is inclined at an angle of 50…

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Q: cat is balanced on the edge of a see-saw. The plank of the see-saw is 1m long, and the wedge is…

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Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics. 

Equilibrium of Forces

The tension created on one body during push or pull is known as force.