Angular Momentum: A uniform ball with diameter of 10 cm rolls without slipping on a horizontal tabletop. The moment of inertia of the ball about an axis through its center is 2.2 × 10-3 kg ? m2, and the translational speed of its center is 0.45 m/s.(a) What is its angular speed of the ball about its center of mass?(b) What is the rotational kinetic energy of the ball?(c) What is the ball's angular momentum about its center of mass?
What will be an ideal response?
(a) 9.0 rad/s (b) 0.089 J (c) 0.020 kg ? m2/s
Physics & Space Science
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Newton's law of cooling applies to objects undergoing
A) cooling. B) warming. C) both of these D) neither of these
Physics & Space Science
How much energy is radiated each second by one square meter of a star whose temperature is 10,000 K? s in the Stefan-Boltzmann law is equal to 
,
a. 5.67 x 1012 J
b. 5.67 x 108 J
c. 5.67 x 104 J
d. 300 nm
e. 300,000,000 nm
Physics & Space Science
The apogee of a(n) ____ orbit does not exist
a. closed b. elliptical c. geosynchronous d. hyperbolic e. parabolic
Physics & Space Science
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Indicate whether the statement is true or false
Physics & Space Science