One person holds a spring scale while another pulls until the scale reads 32 N. What is the force that the person holding the scale applies?
A. 32 N
B. 16 N
C. 64 N
D. 48 N
E. 0.0 N
A. 32 N
Physics & Space Science
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Physics & Space Science
What makes the North Star, Polaris, special?
A) It is the brightest star in the sky. B) It is the star straight overhead. C) It appears very near the north celestial pole. D) It is the star directly on your northern horizon. E) It can be used to determine your longitude on Earth.
Physics & Space Science
The focal length of a convex mirror is has a magnitude of 20 cm. What is its radius of curvature?
A) 40 cm B) -10 cm C) 20 cm D) -40 cm E) -20 cm
Physics & Space Science
Why are leaves green and not yellow, for example? Explain
What will be an ideal response?
Physics & Space Science