angie07253
22.03.2021 •
Physics
You are riding in a car. The car stops quickly and your body rocks forward. Which of Newton's laws explains why this happens?
A. Newton's First Law
B. Newton's Second Law
C. Newton's Third Law
D. none of the abov
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Ответ:
A
Explanation:
The first law, or law of inertia, states an object in motion will continue to move with same speed in the same direction until another force acts on it.
Ответ:
0.6125 meters
Explanation:
We know that,
the height of the object (h) = 0.4 m,
the distance between the object and the mirror (u) = -0.7 m; and
the height of image (h') = 0.35 m.
For a concave spherical mirror, we know the formula of magnification:
magnification =
= 
By cross multiplication:
Therefore, the image is located 0.6125 meters away from the mirror.