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FUNDAMENTALS OF PHYSICS - EXTENDED
12th Edition
ISBN: 9781119773511
Author: Halliday
Publisher: WILEY
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Textbook Question
Chapter 34, Problem 4Q
A penguin waddles along the central axis of a concave mirror, from the focal point to an effectively infinite distance. (a) How does its image move? (b) Does the height of its image increase continuously, decrease continuously, or change in some more complicated manner?
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Students have asked these similar questions
A 10-m-long glider with a mass of 680 kg (including the passengers) is gliding horizontally through the air at 28 m/s when a 60 kg skydiver drops out by releasing his grip on the glider. What is the glider's speed just after the skydiver lets go?
PROBLEM 2
A cube of mass m is placed in a rotating funnel.
(The funnel is rotating around the vertical axis shown
in the diagram.) There is no friction between the cube
and the funnel but the funnel is rotating at just the
right speed needed to keep the cube rotating with the
funnel. The cube travels in a circular path of radius r,
and the angle between the vertical and the wall of the
funnel is 0. Express your answers to parts (b) and (c)
in terms of m, r, g, and/or 0.
(a) Sketch a free-body diagram for the cube. Show
all the forces acting on it, and show the appropriate
coordinate system to use for this problem.
(b) What is the normal force acting on the cube?
FN=mg58
(c) What is the speed v of the cube?
(d) If the speed of the cube is different from what you
determined in part (c), a force of friction is necessary
to keep the cube from slipping in the funnel. If the
funnel is rotating slower than it was above, draw a
new free-body diagram for the cube to show which
way friction…
Circular turns of radius r in a race track are often banked at an angle θ to allow the cars to achieve higher speeds around the turns. Assume friction is not present.
Write an expression for the tan(θ) of a car going around the banked turn in terms of the car's speed v, the radius of the turn r, and g so that the car will not move up or down the incline of the turn.
tan(θ) =
Chapter 34 Solutions
FUNDAMENTALS OF PHYSICS - EXTENDED
Ch. 34 - A penguin waddles along the central axis of a...Ch. 34 - When a T. rex pursues a jeep in the movie Jurassic...Ch. 34 - You look through a camera towards an image of a...Ch. 34 - ILW A moth at about eye level is 10 cm in front of...Ch. 34 - A concave shaving mirror has a radius of curvature...Ch. 34 - a A luminous point is moving at speed vo towards a...Ch. 34 - A lens is made of glass having an index of...Ch. 34 - A movie camera with a single lens of focal length...Ch. 34 - You produce an image of the Sun on a screen, using...Ch. 34 - SSM WWW A double-convex lens is to be made of...
Ch. 34 - SSM An illuminated slide is held 44 cm from a...Ch. 34 - If the angular magnification of an astronomical...Ch. 34 - An object is 10.0 mm from the objective of a...Ch. 34 - Someone with a near point Pn of 25 cm views a...Ch. 34 - SSM The formula 1/p 1/i = 1/f is called the...Ch. 34 - SSM Two thin lenses of focal lengths f1 and f2 are...Ch. 34 - Two plane mirrors are placed parallel to each...Ch. 34 - SSM A fruit fly of height H sits in front of lens...Ch. 34 - A pinhole camera has the hole a distance 12 cm...Ch. 34 - Light travels from point A to point B via...Ch. 34 - A point object is 10 cm away from a plane mirror,...Ch. 34 - Show that the distance between an object and its...Ch. 34 - A luminous object and a screen are a fixed...Ch. 34 - An eraser of height 1.0 cm is placed 10.0 cm in...Ch. 34 - A peanut is placed 40 cm in front of a two-lens...Ch. 34 - A coin is placed 20 cm in front of a two-lens...Ch. 34 - An object is 20 cm to the left of a thin diverging...
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