A wheel of diameter 0.70 m rolls on the floor without slipping. A point at the top of the wheel moves with a speed 2.0 m/s relative to the floor.
(a) At what speed is the central axis of the wheel moving relative to the floor?
(b) What is the angular speed of the wheel?
Question 2
Mort observes Velma's light-clock, as Velma passes. He observes that, during a 1 second tick of her clock, her light beam travels
A) 300,000 km.
B) a distance of one light year.
C) less than 300,000 km.
D) further than 300,000 km.
E) no distance at all.
Massive amounts of wood are stored on the forest floor of old-growth temperate coniferous forests of
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The diameter of a semicircle is 4 miles. What is the semicircle's area?