An object is moving in a straight line and at a constant speed of 60 kilometers per hour. We therefore conclude that the net force on this object is zero.
Answer the following statement true (T) or false (F)
True
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What changed Newton's original work on the movement of the Moon around the Earth into the law of universal gravitation?
a. His conclusion that the same laws applied to all heavenly bodies, not just the Earth and the Moon. b. His conclusion that the same laws applied to all objects, no matter how small. c. His conclusion that planets move in elliptical orbits around the Sun. d. His connection of gravitation to his first law. e. His connection of gravitation to Kepler's observations of planetary movement.
Thin Films: When a beam of light, originally traveling in air, enters a piece of glass having an index of refraction of 3/2, its wavelength
A. increases by a factor of 3/2. B. is reduced to 2/3 its original value. C. is unaffected.
The color of a firework comes from the glowing of
A) molecules. B) atoms. C) gun powder. D) laser light.
A 10-A current flows through a wire for 2.0 min. (e = 1.60 × 10-19 C)
(a) How much charge has passed through this wire? (b) How many electrons have passed any point in the wire? What will be an ideal response?