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Seriously need help with these.. HELP PLEASE!!! 30+ points!! i will mark brainliest!!


a book is 9.26 cm tall and placed 22.7 cm to the left of a plane mirror. What is the height of the image formed by the mirror?


4.63


18.5


2.45


9.26



a book is 9.26 cm tall and placed 22.7 cm to the left of a plane mirror. What is the magnitude of the image distance?


22.7


9.26


24.5


11.4



You move away from a plane mirror at a speed of 1.60 m/s. At what speed does your image move away from you?


1.60 m/s


3.20m/s


6.40m/s


0.40m/s

Respuesta :

MathPhys

Answer:

9.26 cm, 22.7 cm, 3.20 m/s

Explanation:

In a plane mirror, the image and object have the same height.  So h = 9.26 cm.

In a plane mirror, the image distance is the same as the object distance.  So x = 22.7 cm.

Since the distance between an object and a plane mirror is the same as the distance between the mirror and the image, then the distance between you and the image is double the distance between you and the mirror.  If you move away from the mirror at 1.60 m/s, the image will move away from you at double that speed, or 3.20 m/s.

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