Einstein described science as beginning with:
a. an intuitive leap that creates an axiom, defining a set of consequences for the axiom, and testing those consequences against the material world.
b. an intuitive leap that creates an axiom, and testing the axiom against the material world.
c. an intuitive leap that creates an axiom, and defining a set of consequences for that axiom.
d. accepting each axiom as true and not testing it whenever it comes from an authoritative source.
e. defining a set of consequences for an axiom, and testing those consequences against the material world.
e
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The greater the mass of a star, the _______________ it moves through its life cycle
a. faster b. slower c. Neither of these; mass has no effect on the life cycle of a star.
Center of Mass: As shown in the figure, a 60-cm length of uniform wire, of mass 60 g, is bent into a right triangle. What are the x and y coordinates of the center of mass (or center of gravity) of this triangle?
A. (8.0 cm, 3.0 cm) B. (8.0 cm, 5.0 cm) C. (9.0 cm, 4.0 cm) D. (10 cm, 3.0 cm) E. (10 cm, 5.0 cm)
Because most visitors have 8-bit monitors, web designers must restrict their color choices to the web-safe palette.
Answer the following statement true (T) or false (F)
Two blocks are accelerated across a horizontal frictionless surface as shown. Frictional forces keep the two blocks from sliding relative to each other, and the two move with the same acceleration. If F = 1.2 N and M = 1.0 kg, what is the horizontal component (frictional force) of the force of the small block on the large block?
A. 0.48 N to the right B. 0.72 N to the right C. 0.72 N to the left D. 0.48 N to the left E. 0.65 N to the left