A hypernova is one of several types of events that create a gamma ray burst
a. True
b. False
Indicate whether the statement is true or false
True
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The figure above shows two yo-yos that have the same mass and rotational inertia. The one on the right has a thicker axle than the one on the left. The torque produced by gravity is
A. zero; there is no net torque on the yo-yos. B. larger for the yo-yo on the right. C. larger for the yo-yo on the left. D. the same for both yo-yos.
How old is the Galaxy? How do we know this?
What will be an ideal response?
A ball with diameter 10. cm rolls without slipping on a horizontal table top. The moment of inertia of the ball is 2.2 × 10-3 kg- m2 and its translational speed is 0.45 m/s
(a) What is its angular speed about its center of mass? (b) What is its rotational kinetic energy? (c) What is its angular momentum?
If a nonzero torque is applied to an object, that object will experience:
a. a constant angular speed. c. a constant moment of inertia. b. an angular acceleration. d. an increasing moment of inertia.