NWP Assessment PlayerwHomework 4 (Chapters 6 - 7)+ Homework 4 (Chapters 6 - 7)-/ 1Question 3 of 10View PoliciesCurrent Attempt in ProgressA 6260-kg satellite is in a circular earth orbit that has a radius of 3.17 x 107 m. A net external force must act on the satellite tomake it change to a circular orbit that has a radius of 8.61 × 106 m. What work must the net external force do? Note that thework determined here is not the work Wift done by the satellite's engines to change the orbit. Instead, the work W isW = Wift + Wgravitational, where Wgravitational is the work done by the gravitational force.NumberUnitseTextbook and MediaAttempts: 0 of 5 usedSubmit AnswerSave for LaterMacBook Air80888F6F7FBF9F2F3F4F5%232$&3456.78.EYT

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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 11 g particle is moving to the left at 17 m/s. How much net work must be done on the particle to cause it to move to the right at 45 m/s ? Express your answer to two significant figures and include the appropriate units. µA ? W = Value Units Submit Request Answer Provide Feedback Next >
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A block of mass m = 2.00 kg is pushed a distance d = 7.80 m along a frictionless, horizontal table by a constant applied force of magnitude F = 17.0 N directed at an angle θ = 26.0° below the horizontal as shown in the figure below. a) Determine the work done on the block by the applied force. b) Determine the work done on the block by the normal force exerted by the table. c) Determine the work done on the block by the gravitational force. d) Determine the work done on the block by the net force on the block.
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3. a) A person is riding on a Ferris wheel of radius R. He starts at the lowest point of the wheel. When the wheel makes one complete revolution, is the net work done by the gravitational force positive, zero or negative? Do you need to know how the speed of the person changed before you can answer the question? Problems b) Suppose the person started at the highest point of the wheel. What is the net work done by the gravitational force when he reaches the lowest point? 4. A 50-kg block is pushed a distance of _5.0 m across a floor by a horizontal force Fp whose magnitude is 150 N. Fp is parallel to the displacement of the block. The coefficient of kinetic friction is 0.25. a) What is the total work done on the block? b) If the box started from rest, what is the final speed of the block? VI - 4 Physics 1200
A piano mover is pushing a 240-kg piano a distance d=5.0 m with a force parallel to the floor of magnitude FP=480N. The coefficient of kinetic friction between the floor and the piano is μ?=0.180. a)Find the work done by the piano mover on the piano. b)Find the work done by the friction force. c)Find the work done by the gravitational and normal forces. d)Find the speed of the piano after it moved 5.0 m assuming it started from rest.
A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (2.00 m, 5.10m) while a constant force acts on it. The force has magnitude 5.60 N and is directed at a counterclockwise angle of 109° from the positive direction of the x axis. How much work is done by the force on the coin during the displacement? Number i Units
Two 37.0-lbm twins are playing in their backyard. One toddler is running full speed at 5.5 mph and his path will take him directly into a brick wall. His sister has climbed a 3.5-ft ladder and is perched precariously atop it. Calculate the kinetic and potential energies of the two twins with respect to their stationary destinations (the wall and the ground). Boy Girl i KE (lbf.ft) PE (lbf.ft) If potential energy is completely converted to kinetic energy during the girl's fall, how fast will she be travelling upon impact? mph
A lunch plate has a mass of 590g. It is pushed 90.0cm along a dining table by a constant force of F= 3.60N directed at an angle of 26.0 degrees below the horizontal, as shown in the picture below. If the coefficient of kinetic friction between the plate and the table's surface is 0.440, figure out; a. the normal force exerted on the plate by the table. b. the work done by the applied force F. c. the work done by the force of kinetic friction. F 90 cm
A force FY shown in the figure below acts on a particle moving along the y axis. Each unit in the y(m) axis is equal to 2.0m and each unit in the Fy (N) axis is equal to 3.0N. Determine the work done on the particle by this force as it moves from the following initial to final positions. A. From y=A to y=B B. From y=B to y=C C. From y=A to y=C.
A 1,550 kg roller coaster cart is pulled at a constant speed of 2.3 m/s to the top of a 53.5 m tall ramp that has a 30° incline. The coefficient of friction between the ramp and the roller coaster cart is u = 0.075. tow cable 53.5 m Calculate the work done by friction on the roller coaster cart during its motion up the ramp. kJ Write your answer to three significant figures.

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