A 45 g bug is hovering in the air. A gust of wind exerts a force F = (4.02 - 6.03) × 10-² N on the bug. Show Transcribed Text Y Part A How much work is done by the wind as the bug undergoes displacement AF (5.5-5.53) m? Express your answer with the appropriate units. W = Submit Previous Answers Request Answer Part B Value U= X Incorrect; Try Again; 9 attempts remaining Submit What is the bug's speed at the end of this displacement? Assume that the speed is due entirely to the wind. Express your answer with the appropriate units. Units μA 3 Ĉ Units ? ? Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining

A 45 g bug is hovering in the air. A gust of wind exerts a force F = (4.02 - 6.03) × 10-² N on the bug. Show Transcribed Text Y Part A How much work is done by the wind as the bug undergoes displacement AF (5.5-5.53) m? Express your answer with the appropriate units. W = Submit Previous Answers Request Answer Part B Value U= X Incorrect; Try Again; 9 attempts remaining Submit What is the bug's speed at the end of this displacement? Assume that the speed is due entirely to the wind. Express your answer with the appropriate units. Units μA 3 Ĉ Units ? ? Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining

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Description: A 45 g bug is hovering in the air. A gust of windexerts a force F = (4.02 - 6.03) × 10-² N onthe bug.Show Transcribed TextY Part AHow much work is done by the wind as the bug undergoes displacement AF (5.5-5.53) m?Express your answer with the approp

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 38P: A 100 — kg man is skiing across level ground at a speed of 8.0 m/s when he comes to the small slope...

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Give an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.
Give an example of something think of as work in everyday circumstances that is not work in the scientific sense. Is energy transferred or changed in form in your example? If so, explain how this without doing work.
(a) What is the average useful power output of a person who does 6.00106J of useful work in 8.00 h? (b) Working at this rate, how long will it take this person to lift 2000 kg of bricks 1.50 m to a platform? (Work done to lift his body can be omitted because it is not considered useful output here.)
If the net work done by external forces on a particle is zero, which of the following statements about the particle must be true? (a) Its velocity is zero. (b) Its velocity is decreased. (c) Its velocity is unchanged. (d) Its speed is unchanged. (e) More information is needed.
A 5.0-kg box rests on a horizontal surface. The coefficient of kinetic friction between the box and surface is K=0.50 . A horizontal force pulls the box at constant velocity for 10 cm. Find the work done by (a) the applied horizontal force, (b) the frictional force, and (c) the net force.
A force F = (6i 2j) N acts on a panicle that under-goes a displacement r = (3i + j) m. Find (a) the work done by the force on the particle and (b) the angle between F and r.
At the start of a basketball game, a referee tosses a basketball straight into the air by giving it some initial speed. After being given that speed, the ball reaches a maximum height of 4.25 m above where it started. Using conservation of energy, find a. the balls initial speed and b. the height of the ball when it has a speed of 2.5 m/s.
Jane, whose mass is 50.0 kg, needs to swing across a river (having width D) filled with person-eating crocodiles to save Tarzan from danger. She must swing into a wind exerting constant horizontal force F, on a vine having length L and initially making an angle with the vertical (Fig. P7.81). Take D = 50.0 m, F = 110 N, L = 40.0 m, and = 50.0. (a) With what minimum speed must Jane begin her swing to just make it to the other side? (b) Once the rescue is complete, Tarzan and Jane must swing back across the river. With what minimum speed must they begin their swing? Assume Tarzan has a mass of 80.0 kg.
As a mass tied to the end of a string strings from its highest point down to its lowest point, it is acted on by three forces: gravity, tension, and air resistance. Which force does (a) positive work? (b) negative work? (c) zero work?
(a) What is the power output in watts and horsepower of a 70.0-kg sprinter who accelerates from rest to 10.0 m/s in 3.00 s? (b) Considering the amount of power generated, do you think a well-trained athlete could do this repetitively for long periods of time?
An a simple pendulum swings back and forth, the forces acting on the suspended object are (a) the gravitational force, (b) the tension in the supporting cord, and (c) air resistance, (i) Which of these forces, if any, does no work on the pendulum at any time? (ii) Which of these forces does negative work on the pendulum at all Limes during its motion?
Calculate the power output needed for a 950-kg car to climb a 2.00 slope at a constant 30.0 m/s while encountering wind resistance and friction totaling 600 N.