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A revolving door consists of four rectangular glass slabs,with the long end of each attached to a pole that acts as the rotation axis. Each slab is 2.35mtall by 1.25m wide and has mass 32.0kg .
A. Find the rotational inertia of the entire door:
I
B. If it's rotating at one revolution every 9 seconds whats the door's kinetic energy:
K
Four identical metallic objects carry the following charges: +8.2 µC, +7.0 µC, -2.6 µC, and -9.2 µC. What is the final charge on each object
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A 1100kg car traveling south at 24 m/s with respect to the ground collides with and attaches to a 2550kg delivery truck traveling east at 16 m/s. Determine the direction of the velocity of the two vehicles
A microscope with an eyepiece lens of focal length 1.90 cm and an objective lens of focal length 1.15 cm is used to examine a section of the brain of a sacrificed rat. The distance between the lenses of the instrument is 24.0 cm and final image is vi..
A hole in an aluminum plate has a diameter of 1.179 at 24.00. What is the diameter of the hole at 199.0
An organ pipe is 119 cm long. What are the fundamental and first three audible overtones if the pipe is closed at one end.
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