Heat is
A) temperature.
B) thermal energy.
C) thermal energy flowing from hot to cold.
D) radiant energy.
Answer: C
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A 4.00-kg mass is attached to a very light ideal spring hanging vertically and hangs at rest in the equilibrium position
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The focal length of a converging lens is 10 cm. What is the angular magnification of this lens if the image is viewed by a relaxed eye with a near point of 25 cm?
A) 0.50 B) 1.5 C) 2.5 D) 3.5 E) 4.5
A charge of 1.0 × 10-6 ?C is located inside a sphere, 1.25 cm from its center. What is the electric flux through the sphere due to this charge? (?0 = 8.85 × 10-12 C2/N • m2)
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