University Physics Volume 11st EditionSamuel J Ling Jeff, Sanny, William Moebs Publisher: OpenStaxISBN: 9781630182137
University Physics Volume 1
Solutions for University Physics Volume 1
Problem 12.1CYU:
Check Your Understanding Solve Example 12.1 by choosing the pivot at the location of the rear axle.Problem 12.2CYU:
Check your Understanding Explain which one of the following satisfies both equilibrium conditions:...Problem 12.3CYU:
Check your Understanding Repeat Example 12.3 using the left end of the meter stick to calculate the...Problem 12.4CYU:
Check Your understanding Repeat ExampIe12.4 assuming that the forearm is object of uniform density...Problem 12.5CYU:
Check Your Understanding For the situation in described in Example 12.5, determine the values of the...Problem 12.6CYU:
Check Your Understanding Solve the problem in Example 12.6 by taking the pivot position at the...Problem 12.7CYU:
Check Your Understanding A 50-kg person stands 1.5 m away from one end of a uniform 6.0-m-long...Problem 12.8CYU:
Check Your Understanding A 400.0-N sign hangs from the end of a uniform strut. The strut is 4.0 m...Problem 12.9CYU:
Check Your Understanding Find the compressive stress and strain at the base of Nelson’s column.Problem 12.10CYU:
Check Your Understanding A 2.0-m-long wire stretches 1.0 mm when subjected to a load. What is the...Problem 12.11CYU:
Check Your Understanding If the normal force acting on each face of a cubical 1.0m3 piece of steel...Problem 12.12CYU:
Check Your Understanding Explain why the concepts of Young’s modulus and shear modulus do not apply...Problem 3CQ:
What three factors affect the torque created by a force relative to a specific pivot point?Problem 4CQ:
Mechanics sometimes put a length of pipe over the handle of a wrench when trying to remove a very...Problem 5CQ:
If there is only one external force (or toe) acting on object. It cannot be on equilibrium.Problem 11CQ:
Show how a spring scale and a simple fulcrum can be used to weigh an object whose weight is larger...Problem 12CQ:
A painter climbs a ladder. Is the ladder more likely to slip when the painter Is near the bottom or...Problem 13CQ:
Note: Unless stated otherwise, the weights of the wires, rods, and other elements are assumed to be...Problem 14CQ:
When a glass bottle full of vinegar warms up, both the vinegar and the glass expand, but the vinegar...Problem 15CQ:
A thin wire strung between two nails in the wall is used to support a large picture. Is the wire...Problem 16CQ:
Review the relationship between stress and strain. Can you find any similarities between the two...Problem 17CQ:
What type of stress are you applying when you press on the ends of a wooden rod? When you pull on...Problem 18CQ:
Can compress stress be applied to a rubber band?Problem 20CQ:
If a hypothetical material has a negative bulk modulus, with happens when you squeeze a piece of it?Problem 22CQ:
Note: Unless stated othen.ise the weights of the wires, rods, and other elements are assumed to be...Problem 23CQ:
Steel rods are commonly placed in concrete before it sets. What Is the purpose of se rods?sProblem 24P:
When tightening a bolt, you push perpendicularly on a wrench with a force of 165N at a distance of...Problem 25P:
When opening do you push on it perpendicularly with a force of 55.0 N at a distance of 0.850 m from...Problem 26P:
Find the magnitude of the tension in each supporting cable shown below. In each case, the weight of...Problem 27P:
What force must be applied at point P to keep the structure shown in equilibrium? The weight of the...Problem 28P:
Is it possible to apply a force at P to keep in equilibrium the structure shown? The weight of the...Problem 29P:
Two children push on opposite of a door during ply. Both push horizontally and perpendicular to the...Problem 30P:
A small 1000-kg SUV has a wheel base of 3.0 m. If 60 if its weight rests on the front wheels is the...Problem 31P:
The uniform seesaw is balanced at its center of mass, as seen below. The smaller boy on the right...Problem 32P:
A uniform plank rests on a level surface as shown below. The plank has a mass of 30 kg and is 6.0 m...Problem 33P:
The uniform seesaw shown below is balanced on a fulcrum located 3.0 m from the left end. The smaller...Problem 34P:
In order to get his car out of the mud, a man ties one end of a rope to the front bumper and the...Problem 35P:
A uniform 40.0-kg scaffold of length 60 m is supported by tow light cables below. An 80.0 kg painter...Problem 36P:
When the structure shown below is supported at point P, it is in equilibrium. Find the magnitude .of...Problem 37P:
To get up on the roof, a person (mass 70.0 kg) places 6.00-m aluminum ladder (mass 10.0 kg) against...Problem 38P:
A uniform horizontal strut weighs 400.0 N. One end of the strut is attached to a hinged support the...Problem 39P:
The forearm shown below is positioned at an angle with respect to the upper arm , and a 5.0- kg...Problem 40P:
The uniform boom shown below weighs 3000N . It is supported by the horizontal guy wire and by the...Problem 41P:
The uniform boom shown below weighs 700N , and the object hanging from its right end weighs 400N ....Problem 42P:
A 12.0m boom, of a crane lifting a 3000kg load is shown below. The center of mass of the boom is at...Problem 43P:
A uniform trapdoor shown below is 1.0m by 1.5m and weighs 300N . It is supported by a single hinge...Problem 44P:
A 90kg man walks on a sawhorse, as shown below. The sawhorse is 2.0m long and 1.0m high, and its...Problem 45P:
The “lead” in pencils is a graphite composition with a Young’s modulus of approximately 1.0109N/m2 ....Problem 46P:
TV broadcast antennas are the tallest artificial structure on Earth. In 1987 , a 72.0kg physicist...Problem 47P:
By how much does a 65.0kg mountain climber stretch her 0.800cm diameter nylon rope when she hangs...Problem 48P:
When water freezes, its volume increases by 9.05 . What force per unit area is water capable of...Problem 49P:
A farmer making grape juice fills a glass bottle to the brim and caps it tightly. The juice expands...Problem 50P:
A disk between vertebrae in the spine is subjected to a shearing force of 600.0N . Find its shear...Problem 51P:
A vertebrae is subjected to a shearing force of 500.0N . Find the shear deformation, taking the...Problem 52P:
Calculate the force a piano tuner applies to stretch a steel piano wire by 8.00mm , if the wire is...Problem 53P:
A 20.0m -tall hollow aluminium flagpole is equivalent in strength to a solid cylinder 4.00cm in...Problem 54P:
A copper wire of diameter 1.0cm stretches 1.0 when it is used to lift a load upward with an...Problem 55P:
As an oil well is drilled, each new section of drill pipe support its own weight and the weight of...Problem 56P:
Alarge uniform cylindrical steel rod of density =7.8g/cm3 is 2.0 m long and has a diameter of 5.0...Problem 57P:
A 90-kg mountain climber bangs from a nylon rope and stretches it by 25.0 cm. If the rope was...Problem 58P:
A suspender rod of a suspension bridge is 25.0 m long. If the rod is made of steel, what must its...Problem 59P:
A copper wire is 1.0 m long and it diameter is 1.0 mm. if the wire hangs vertically how much weight...Problem 60P:
A 100-N weight is attached to a free end of a metallic wire that hangs from the ceiling. When a...Problem 61P:
The bulk modulus of a material is 1.01011N/m2 . What fractional change in volume does a piece of...Problem 62P:
Normal forces of magnitude 1.0106N are applied uniformly to a spherical surface enclosing a volume...Problem 63P:
During a walk on a rope, a tightrope walker creates a tension of 3.94103N in a wire that are 15.0m...Problem 64P:
When using a pencil eraser, you exert a vertical force of 6.00N at a distance of 2.00cm from the...Problem 65P:
Normal forces are applied uniformly over the surface of a spherical volume of water whose radius is...Problem 66P:
A uniform rope of cross-sectional area 0.50cm2 breaks when the tensile stress in it reaches...Problem 67P:
One end of a vertical metallic wire of length 2.0m and diameter 1.0mm is attached to a ceiling, and...Problem 68P:
An aluminium (=2.7g/cm3) wire is suspended from the ceiling and hangs vertically. How long must the...Problem 69AP:
The coefficient of static friction between the rubber eraser of the pencil and the tabletop is...Problem 70AP:
A pencil rests against a corner, as shown below. The sharpened end of the pencil touches a rough...Problem 71AP:
A uniform 4.0m plank weighing 200.0N rests against the corner of a wall, as shown below. There is no...Problem 72AP:
A 40kg boy jumps from a height of 3.0m , lands on one foot and comes to rest in 0.10s after he hits...Problem 73AP:
Two thin rods, one made of steel and the other of aluminium, are joined end to end. Each rod is 2.0m...Problem 74AP:
Two rods, one made of copper and the other of steel, have the same dimensions. If the copper rod...Problem 75CP:
A horizontal force F is applied to a uniform sphere in direction exact toward the center of the...Problem 76CP:
When a motor is set on a pivoted mount seen below, its weight can be used to maintain tension in the...Problem 77CP:
Two wheels A and B with weights w and 2w , respectively,are connected by a uniform rod with weight...Problem 78CP:
Weights are gradually added to a pan until a wheel of mass M and radius R is pulled over an obstacle...Problem 79CP:
In order to lift a shovelful of dirt, a gardener pushes downward on the end of the shovel and pulls...Browse All Chapters of This Textbook
Chapter 1 - Units And MeasurementChapter 2 - VectorsChapter 3 - Motion Along A Straight LineChapter 4 - Motion In Two And Three DimensionsChapter 5 - Newton's Law Of MotionChapter 6 - Applications Of Newton's LawsChapter 7 - Work And Kinetic EnergyChapter 8 - Potential Energy And Conservation Of EnergyChapter 9 - Linear Momentum And CollisionsChapter 10 - Fixed-axis Rotation
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