In 1981, Daniel Goodwin climbed 443 m up the exterior of the Sears Building in Chicago using suction cups and metal clips. (a) Approximate his mass and then compute how much energy he had to transfer from biomechanical (internal) energy to the gravitational potential energy of the Earth–Goodwin system to lift himself to that height. (b) How much energy would he have had to transfer if he had, instead, taken the stairs inside the building (to the same height)?

Q: For saving energy, bicycling and walking are far more efficient means of transportation than is…

A: a. the energy consumption by the person in walking is

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A:

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A: Δh1=First day change in height=2400−1500=900 mΔh2=Second day change in height=1350−2400=−1050…

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A: Given Volume of blood , V = 6773.2 L  Density of blood , D = 1.06 kg/L  Height lift ,H = 1.7 m  Time…

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A: Given: Mass: 3 [ton]= 3000 [kg] Vertical distance: h= 1 [km]= 1000 [m] Horizontal distance by road:…

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A: mass of the stone, m = 0.20 kgif y=0 is the top of the edge then initial position of the stone is at…

Q: How much work does gravity do on a 2.5-mg raindrop as the drop falls to the ground from a cloud 2200…

A: Answer              5.39*10-5 J

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A: Figure shows the force acting on the block.

Q: Two balls, A and B, of mass m and 2m respectively are carried to height h at constant velocity, but…

A: The net force acting on an object is equal to the product of mass and acceleration of the object. If…

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A:

Q: Find the work done in joules by gravity as an object of the mass m=11 kg is raised up at constant…

A: Potential energy is defined as U=mgh Here m is mass, h is height and g is gravitational acceleration…

Q: From what height would an automobile have to fall to gain the kinetic energy equivalent to what it…

A:

Q: Ignoring details associated with friction, extra forces exerted by arm and leg muscles, and other…

A: Introduction: Various forms of energy can be converted into another form. According to conservation…

Q: i. A 5.0-kg block is pushed 3.0 m up a vertical wall with con- stant speed by a constant force of…

A: Given  Mass of block = 5.0 kg  Angle =30°  coefficient of friction=u= 0.3    Displacement =d= 3.0m…

Q: Ten days after it was launched toward Mars in December 1998, the Mars Climate Orbiter spacecraft…

A:

Q: Find the work done in joules by gravity as an object of the mass m=5 kg is raised up at constant…

A: Given : m = 5 kg h1 = 23 m h2 = 69 m g = 10 m/s2

Q: A box of canned goods, contents have a total mass of 4.5 kg, is pushed 2 m along the floor by a…

A: The free body diagram of the box is given below.

Q: If a car generates 17.3 hp when traveling at a steady 81.3 km/hr, what must be the average force…

A:

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A: Mass, m = 500 kg Speed vi = 4.0 ms-1  Distance d=12 m Also given that supporting cable begins to…

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A: To determine: A young man Tarzan climbed up a vine to reach the tree house, what did the king of…

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A: Maximum kinetic energy of ball will be just before the ball hits the ground, as at that time speed…

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A: Work done will be equal to change in the potential energy of the bucket. Let the potential energy at…

Q: A 2.00 x 102 - g particle is released from rest at point A on theinside of a smooth hemispherical…

A: Part A:

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A: The normal force on the block,

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A: Given information: The mass of the elevator (m) = 1750 kg The number of persons (n) = 8 The height…

Q: True or False? For a rock that is thrown up (through air), its gravitational potential energy is…

A: Gravitational potential energy is given by = mgh m = mass of rock g= gravity h = height of the rock…

Q: You drag your 30 kg suitcase 1200 m thru the Chicago airport at essentially constant velocity 2.0…

A: Given: Mass, M = 30kg Distance , s= 1200m Velocity, v = 2.0m/s Force, F = 90N, 20o westward

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A: Assume that the angle between horizontal and the force applied by the man be θ. Draw the free-body…

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A:

Q: A 35.5 kg box initially at rest is pushed 5.75 m along a rough, horizontal floor with a constant…

A: Recall W=Fdcosθ When θ=900 W=0 Also work kinetic energy theorem ∑W=∆KE

Q: complete with camping equipment, has a mass of 85 kg In exactly 1.5 h, she climbs from an elevation…

A: Given mass = 85 kg Time t = 1.5 hr Height h1= 2700 m Height h2 = 3800 m

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A: Given:- While training for breeding season, a 460 gram male squirrel does 29 pushups in a minute…

Q: If it does 150 MJ of work in the process, what average force does the meteorite exert on the ground?

A:

Q: A 2.00 ×102-g particle is released from rest at point A  on the inside of a smooth hemispherical…

A:

Q: ind the work done in joules by gravity as an object of the mass m=15 kg is raised up at constant…

A: Mass (M)= 15kg Value of g=10m/S2  Height change from 35 to 69

Q: A truck has a gross weight of 1.0 x 106 N. Assuming that the concrete road has a coefficient of…

A:

Q: On an essentially frictionless, horizontal ice rink, a skater moving at v = 3.0  m/s encounters a…

A:

Q: A 55-kg marathon runner runs up the stairs to the top of Taguig’s 318-m Grand Hyatt Manila, the…

A: Mass of the runner M=55 kg The height reached h=318 m The time taken t=20 minutes=20×60 s=1200 s…

Q: In a simulation on Earth, an astronaut in his space suit climbs up a vertical ladder. On the Moon,…

A: The gravitational potential energy can be written as,                   Gravitational Potential…

Q: While training for breeding season, a 380 gram male squirrel does 32 pushups in a minute, displacing…

A: Given: m = 380 g = 0.38 kg  number of push ups, n = 32  height, h = 8.5 cm = 0.085  m

Q: If it takes 4.00 J of work to stretch a Hooke's-law spring 5.0 cm from its unstressed length,…

A: Work done to stretch the spring from its unstretched length to 5 cm  = 4 Joules Using, formula for…

Q: potential energy of a body

A:

Q: A body is falling freely under the action of gravity alone in vacuum. Which of the following…

A: We will answer first question only.

Q: Find the work done in joules by gravity as an object of the mass m=6 kg is raised up at constant…

A: Here, we are given Mass of object, m = 6 Kg Initial height of the object from the ground, h1 = 32 m…