IP A small vertical mirror hangs on the wall, 1.25 m above the floor. Sunlight strikes the mirror, and the reflected beam forms a spot on the floor 2.55 m from the wall. Later in the day, you notice that the spot has moved to a point 3.55 m from the wall. Part A Were your two observations made in the morning or in the afternoon? in the morning in the afternoon Submit Part B Complete previous part(s) Part C Request Answer What was the change in the Sun's angle of elevation between your two observations? Δθ = Submit |VD ΑΣΦ Request Answer EX ?

IP A small vertical mirror hangs on the wall, 1.25 m above the floor. Sunlight strikes the mirror, and the reflected beam forms a spot on the floor 2.55 m from the wall. Later in the day, you notice that the spot has moved to a point 3.55 m from the wall. Part A Were your two observations made in the morning or in the afternoon? in the morning in the afternoon Submit Part B Complete previous part(s) Part C Request Answer What was the change in the Sun's angle of elevation between your two observations? Δθ = Submit |VD ΑΣΦ Request Answer EX ?

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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Part A A 2.6-cm-tall object is 30 cm to the left of a lens with a focal length of 15 cm . A second lens with a focal length of 5.0 cm is 40 cm to the right of the first lens. Calculate the distance between the final image and the second lens. Express your answer to two significant figures and include the appropriate units. ) ) ? d = Value cm Part B Calculate the image height. Express your answer to two significant figures and include the appropriate units. HA ? h' = Value cm
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Consider a ray of light that is incident on a plane mirror as shown in Figure 1. пormal incident ray reflected ray mirror Figure 1: The law of reflection governs the reflection of light-rays off smooth conducting surfaces, such as polished metal or metal-coated glass mirrors. The law of reflection states that the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. Furthermore, the angle of reflection r is equal to the angle of incidence i. Let the incident angle i be 30 degrees (measured from the normal). Establish a standard coordinate system with the origin at the point where the incident ray hits the mirror. Using this coordinate system, express the direction of the reflected ray of light using a unit vector.
An object is placed in front of a converging lens in such a position that the lens (f = 12.8 cm) produces a real image located 19.7 cm from the lens. Then, with the object remaining in place, the lens is replaced with another converging lens (f = 15.2 cm). A new, real image is formed. What is the image distance of this new image? Number i Units