Galileo determined that ____

a. heavy objects accelerate at a slower speed than lighter objects
b. lighter objects accelerate at a slower speed than heavier objects
c. an object's acceleration is due to the height from which it is dropped
d. all objects fall at a constant speed
e. all objects fall at a constant acceleration


e

Physics & Space Science

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Magnetic compasses reportedly were first used for navigation by

A) Aristotle. B) Australian aborigines. C) Chinese sailors. D) none of the above

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What is the power of the lens that has a focal length of 40 cm?

A) -2.5 diopters B) -4.0 diopters C) +4.0 diopters D) +2.5 diopters E) +2.7 diopters

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A +7.00 ?C point charge and -9.00 ?C point charge are placed along the x-axis at x = 0.000 cm and x = 40.0 cm, respectively

Where must a third charge, q, be placed along the x-axis so that it does not experience any net electric force due to the other two charges? A) -0.200 m B) 2.99 m C) -0.187 m D) -2.99 m E) 0.187 m

Physics & Space Science

Venus, which is 95 percent the diameter of Earth, has a(n) _______________ atmosphere

Fill in the blank(s) with correct word

Physics & Space Science