State Newton's first law of motion
What will be an ideal response?
Every object continues in its state of rest, or of uniform velocity in a straight line, as long as no net force acts on it.
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Which of the following is true of the star clusters in the Milky Way?
A) Open clusters are widely scattered in the Milky Way. B) Globular clusters are concentrated along the disk of the Milky Way. C) Open clusters are more common toward the constellation Sagittarius. D) Globular clusters are much too far away to have measureable parallaxes.
The F Ring around Saturn is maintained by ________
Fill in the blank(s) with correct word
A light source radiates 60.0 W of single-wavelength sinusoidal light uniformly in all directions. What is the amplitude of the magnetic field of this light at a distance of 0.700 m from the bulb?
(?0 = 8.85 × 10-12 C2/N ? m2, ?0 = 4? × 10-7 T ? m/A, c = 3.0 × 108 m/s) A) 1.76 × 10-7 T B) 2.02 × 10-7 T C) 2.22 × 10-7 T D) 2.86 × 10-7 T
A simple magnifier makes an image appear at the near point distance from the eye of the viewer (25 cm). What is the magnifying power of the magnifier if it is constructed of a lens of focal length of 6.3 cm? Do not use the approximation formula
a. 5.0 c. 1.2 b. 50 d. 7.3