Question 13Early one October, you go to a pumpkin patch toselect your Halloween pumpkin. You lift the 3.4 kgpumpkin to a height of 1.4 m,(on level ground) to the check-out stand.then carry it 50.0 mPart ACalculate the work you do on the pumpkin as you lift it from the ground.Express your answer using two significant figures.?W =JSubmitRequest AnswerPart BHow much work do you do on the pumpkin as you carry it from the field?Express your answer using two significant figures.ΑΣφ?W =JSubmitRequest AnswerProvide Feedback

Given Mass is m= 3.4 kg Acceleration due to gravity is g=9.80 m/s2 Height is h= 1.4 m A) The work…

Answered: Early one October, you go to a pumpkin…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A 1500 kg car has a maximum power output of 140 hp. Part A How steep a hill can it climb at a constant speed of 60 km/h if the frictional forces add up to 810 N ? Express your answer using two significant figures. VE ΑΣΦ 0 = w
Q1 A shopper in a supermarket pushes a cart with a force of 30.0 N directed at an angle of 25.0° below the horizontal. The force is just sufficient to balance various friction forces, so the cart moves at constant speed. Find the work done by the shopper on the cart as she moves down a 52.6-m-long aisle.
Hint 1 A small block of mass 246 g starts at rest at A, slides to B where its speed is vg = 5.4 m/s, then slides along the horizontal surface a distance 10 m before coming to rest at C. A 4.0 m B -10 m- Image Description a. What is the work of friction along the curved surface? W; J b. What is the coefficient of kinetic friction along the horizontal surface? Submit Question
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A 45 kg gymnast is bouncing on a trampoline. Model the gymnast as a particle and the trampoline as a spring with a spring constant of 15,000 N/m. The spring is compressed by 30 cm when the gymnast is at her lowest point. We want to determine how high she goes above the trampoline.
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Review Istants Sam, whose mass is 72 kg , straps on his skis and starts down a 64 m -high, 20° frictionless slope. A strong headwind exerts a horizontal force of 200 N on him as he skies. Part A Use work and energy to find Sam's speed at the bottom. Express your answer to two significant figures and include the appropriate units. µA ? Value Units V = Submit Request Answer
How much work must you do to push a 12.0 kgkg block of steel across a steel table (μkμk = 0.60) at a steady speed of 1.20 m/sm/s for 5.30 ss ? Express your answer with the appropriate units. What is your power output while doing so? Express your answer with the appropriate units.
Ayoung woman on a skateboard is pulled by a rope attached to a bicycle. The velocity of the skateboarder is v = (4.6 m/s )ê and the force exerted on her by the rope is F = (17 N)â + (12 N)ỹ. Part A Find the work done on the skateboarder by the rope in 25 seconds. Express your answer using two significant figures. ? W = J Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Review your calculations and make sure you round to 2 significant figures in the last step. Part B Assuming the velocity of the bike is the same as that of the skateboarder, find the work the rope does on the bicycle in 25 seconds. Express your answer using two significant figures. Πνα ΑΣφ ? W = J
Susan's 13.0 kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30° above the floor. The tension is a constant 28.0 N and the coefficient of friction is 0.210. Part A Use work and energy to find Paul's speed after being pulled 2.90 m Express your answer with the appropriate units. 1.93 Submit μA m S ? Previous Answers Request Answer X Incorrect; Try Again; 26 attempts remaining
Part A How much work must you do to push a 13 kg block of steel across a steel table at a steady speed of 1.3 m/s for 5.4 s? The coefficient of kinetic friction for steel on steel is 0.60. Express your answer in joules. %3D push = J Submit Request Answer Part B What is your power output while doing so? Express your answer in watts. ΑΣφ P = W %3D Submit Request Answer Next >
Part A A horizontal spring with spring constant 140 N/m is compressed 17 cm and used to launch a 2.1 kg box across a frictionless, horizontal surface. After the box travels some distance, the surface becomes rough. The coefficient of Use work and energy to find how far the box slides across the rough surface before stopping. kinetic friction of the box on the surface is 0.15. Express your answer using two significant figures. ? cm = 1

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