A pencil that is 15.7 cm long is released from a vertical position with the eraser end resting on a table. The eraser does not slip as it tips over. Treat the pencil like a uniform rod.
What is the angular speed of the pencil just before it hits the table? A) 13.7 rad/s
B) 7.23 rad/s
C) 3.70 rad/s
D) 24.5 rad/s
E) 16.8 rad/s
Question 2
One of the first atomic bombs released energy equivalent to that of 20,000 tons of TNT explosive.
How much mass was converted to energy by this explosion, given that 1000 tons of TNT produce 4.3 1012 J of energy. Incidentally, modern H-bombs have energy yields 1000 times as much (c = 3.0 108 m/s)
To maintain balance the bipedal pelvis has a foreshortened ilium and is broader and bowl-shaped. The
Orrorin tugenensis may be among the oldest of the hominins, although its taxonomic position is still
Supine position. Placement of bolsters under the knees and neck.
Side-lying position. Placement of bolsters under the superior leg, arm, and head.
A tightrope walker walks across a 30-m long wire tied between two poles. The center of the wire ...