A massless rod of length 1.00 m has a 2.00-kg mass attached to one end and a 3.00-kg mass attached to the other
The system rotates about a fixed axis perpendicular to the rod that passes through the rod 30.0 cm from the end with the 3.00-kg mass attached. The kinetic energy of the system is 100 J.
(a) What is the moment of inertia of this system about this axis?
(b) What is the angular speed of this system?
(a) 1.25 kg?m2
(b) 2.01 rev/s
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A set of twins, Andrea and Courtney, are initially 10 years old. While Courtney remains on Earth, Andrea rides on a spaceship which travels away from Earth at a speed of 0.60c for five years (as measured by Courtney),
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A(n) ____ is a commonly accepted set of scientific ideas and assumptions
a. theory b. paradigm c. hypothesis d. natural law e. model
Which is a characteristic of dwarf planets? a. They possess an asymmetrical or irregular shape
b. Their orbit is highly elliptical and far from the Sun. c. They must reside within the Kuiper belt or Oort cloud. d. They have insufficient gravitational pull to clear their neighborhood. e. They cross the orbit of other planets during its own revolution.
Which of the following air masses does not directly
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